Relevant bibliographies by topics / Testing of exhaust clamps

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Testing of exhaust clamps'

Author: Grafiati
Published: 28 June 2021
Last updated: 13 February 2022

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Journal articles on the topic "Testing of exhaust clamps"

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Yoon, Sung Ho, and Young Eun Hwang. "Sealing performance test for V-insert clamp applicable to automobile exhaust pipes." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 227, no. 10 (January 8, 2013): 2228–35. http://dx.doi.org/10.1177/0954406212473410.

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The sealing performance of V-insert clamp used in automobile exhaust pipes was examined for various applied torques by a specially designed pneumatic testing system. Axial clamping forces of V-insert clamp were evaluated through a clamping performance test. In the clamping performance test, increase in the torque showed gradual increase in the axial clamping force for all gaps between exhaust pipes that were considered. Slight increase in the torque resulted in relatively high axial clamping force. In the sealing performance test, when applied pressure was 50 kPa, the leak was not present in all applied torques due to no pressure change as a function of time. For 100 kPa, the leak was observed for applied torques of 3 N-m and lower. When V-insert clamp was used to join the pipes together, at least the applied torque of 4 N-m was needed in order for V-insert clamp to effectively function in the exhaustion system. Therefore, it can be concluded that V-insert clamp showed sufficient sealing performance to support the applied pressure of up to 100 kPa within the exhaustion system when relatively high torque was applied.
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Kumar, V. Ram, and M. L. Munjal. "Plane wave frequency domain analysis of resonance free pipes with moving medium." Noise Control Engineering Journal 67, no. 6 (November 1, 2019): 467–82. http://dx.doi.org/10.3397/1/376743.

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Mufflers are inevitably a significant part of the exhaust systems of automobiles for bringing down the tail-pipe noise levels. Nevertheless, howsoever well-optimized a reasonably large muffler volume be (with respect to insertion loss, back pressure, breakout noise, flow noise, etc.), there are inevitably acoustic modes present, which lead to peaks in the noise levels and corresponding troughs in the insertion loss (IL) of an exhaust baseline. These acoustic modes are: (i) muffler internal modes, (ii) axial pipe modes and (iii) system modes. Of these, the axial pipe mode is the most detrimental one. Usage of microperforated (MPA) patches along long pipes at locations of sound pressure anti-nodality to dampen their resonances has proved to be an efficient acoustic solution. All the works reported so far on these resonance free pipes with such patches have been using 3D FEM or vehicle testing. This article discusses their acoustic performance employing linear plane wave theory. The predicted acoustic behavior comes in-line with those of published resources. Also, the flow leakage through the open patches and the corresponding attenuation impact have been demonstrated. It has been shown that the seemingly inconsequential leakage deteriorates the patch acoustics considerably. This result is verified with the published claims, thereby further validating the 1D analysis presented here. Also, the 1D approach has a scope for valuable benchmarking of resonance free pipes (RFPâ,,¢) in industry since it does not suffer any intrinsic modeling deficiency unlike some commercial simulation solvers. The article, thus, presents, validates and illustrates the potential of linear acoustic analysis toward the acoustic assessment and optimization of RFPs.
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Gierman, Hinco J., Nikhil Pai, Casey Catasus, Alvin Tam, Monica Labrador, Joseph Donaldson, Mallika Singaraju, et al. "A retrospective three-year analysis using real-world data on uptake of broad-based NextGen sequencing panels in community oncology practices." Journal of Clinical Oncology 38, no. 15_suppl (May 20, 2020): e13668-e13668. http://dx.doi.org/10.1200/jco.2020.38.15_suppl.e13668.

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e13668 Background: There are over 100 FDA approved targeted therapies across 15 cancer types, offering improved outcomes over existing therapies. However, many of these require genetic testing, for example, advanced non-small cell lung cancer (aNSCLC) patients have over 15 targeted therapies requiring a DNA-based test. Doing multiple tests can exhaust sample, while increasing cost and turn-around time. NGS panels, often with hundreds of genes, can address some of these issues. Here we asked across aNSCLC patients if the use of NGS panels has increased over the last 3 years in community oncology practices. Methods: The Integra Connect database, which includes electronic medical record (EMR) and claims data on over 1,000,000 US cancer patients, was queried across five community oncology practices to identify aNSCLC patients (stage IIIB or IV) treated between January 2017 and January 2020. Manual chart review abstracted tumor type, stage, treatment, and testing. Patients tested for all 7 NCCN recommended genes (EGFR, ALK, ROS1, BRAF, MET, RET, ERBB2) were grouped as “NGS Panel”, patients with less genes as “Single Gene/Small Panel”, and patients with no evidence of testing as “No Test”. A Chi-Square test was used to compare actionable results between patients with NGS panels versus small panels. Results: 1,007 aNSCLC patients were analyzed and showed a doubling of the use of broad-based NGS testing from 13% in 2017 to 26% in 2019 across over 100 oncologists (table). 23% of patients had actionable results when tested on broad-based panels versus 17% using single gene or small panels (p = .048). Targeted therapies were used in 17% of broad-based tested patients, versus 15% in patients tested for single genes or small panels. Conclusions: We see an uptake of broad-based NGS testing in community oncology, which can lead to more actionable results and better utilization of targeted therapies for those patients. However, this seems to be caused by providers shifting from small panels to large panels, rather than an overall increase in testing, as we do not see the percentage of untested patients decrease. [Table: see text]
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MERKISZ, Jerzy. "On-road exhaust emission testing." Combustion Engines 146, no. 3 (November 1, 2011): 3–15. http://dx.doi.org/10.19206/ce-117086.

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The paper presents the reasons behind on-road vehicle exhaust emission testing. The latest legislation has been presented in the paper applicable in the EU as well as the research potential of the Institute of Combustion Engines and Transport of Poznan University of Technology. The presentation of the results of the on-road tests pertains to passenger vehicles, buses and non-road machinery (construction machinery, tractors) and aircraft. The comparison of the exhaust emissions from different means of transport under real traffic conditions constitutes an important trend included in the normative legislation related to exhaust emissions
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Barrans, Simon, Goodarz Khodabakhshi, and Qiang Xu. "Contact Pressure Distribution in Joints Formed by V-Band Clamps." Advanced Materials Research 1016 (August 2014): 34–38. http://dx.doi.org/10.4028/www.scientific.net/amr.1016.34.

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V-band clamps offer an efficient clamping solution in diverse applications including process equipment, exhaust systems and air handling. This paper studies the distribution of interface contact pressure between the V-band and flange when the coupling is established. The determination of the contact area and pressure distribution in a joint is essential information, as it determines the integrity of the coupling. A three dimensional finite element model has been developed for this purpose. Contrary to the previous assumption in developing axisymmetric models, the 3D results showed that the contact pressure is non-uniform around the circumference of V-band with maximum contact pressure near the T-bolt area. This is in agreement with the theory in the literature. The presence and magnitude of friction has a noticeable influence on the form of the interface pressure distribution curve. It is also shown that the diameter of the band interacts with the effect of friction.
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Cornaz, Frédéric, Marie-Rosa Fasser, José Miguel Spirig, Jess G. Snedeker, Mazda Farshad, and Jonas Widmer. "3D printed clamps improve spine specimen fixation in biomechanical testing." Journal of Biomechanics 98 (January 2020): 109467. http://dx.doi.org/10.1016/j.jbiomech.2019.109467.

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Grgić, Ivan, Vjekoslav Wertheimer, Mirko Karakašić, and Željko Ivandić. "3D Printed Clamps for In Vitro Tensile Tests of Human Gracilis and the Superficial Third of Quadriceps Tendons." Applied Sciences 11, no. 6 (March 12, 2021): 2563. http://dx.doi.org/10.3390/app11062563.

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Recent soft tissue studies have reported issues that occur during experimentation, such as the tissue slipping and rupturing during tensile loads, the lack of standard testing procedure and equipment, the necessity for existing laboratory equipment adaptation, etc. To overcome such issues and fulfil the need for the determination of the biomechanical properties of the human gracilis and the superficial third of the quadriceps tendons, 3D printed clamps with metric thread profile-based geometry were developed. The clamps’ geometry consists of a truncated pyramid pattern, which prevents the tendons from slipping and rupturing. The use of the thread application in the design of the clamp could be used in standard clamping development procedures, unlike in previously custom-made clamps. Fused deposition modeling (FDM) was used as a 3D printing technique, together with polylactic acid (PLA), which was used as a material for clamp printing. The design was confirmed and the experiments were conducted by using porcine and human tendons. The findings justify the usage of 3D printing technology for parts manufacturing in the case of tissue testing and establish independence from the existing machine clamp system, since it was possible to print clamps for each prepared specimen and thus reduce the time for experiment setup.
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A. J. Heber, S. E. Cole, and J. P. Murphy. "Facility for Testing Exhaust Ventilation Fans." Applied Engineering in Agriculture 7, no. 5 (1991): 599–605. http://dx.doi.org/10.13031/2013.26276.

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Miąskowski, Wojciech, Krzysztof Nalepa, Przemysław Kowalczyk, and Kamil Adamowicz. "Stand for exhaust-driven turbogenerators testing." Mechanik 91, no. 7 (July 9, 2018): 588–90. http://dx.doi.org/10.17814/mechanik.2018.7.92.

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Presented is the designing procedure of the research and teaching stand for testing of exhaust-driven turbogenerators. The SolidWorks environment was used in the design process. The necessary engineering analyses were carried out, such as: conceptual consideration, calculations of the turbogenerator thermodynamic circuit, energy balance, device efficiency calculations, strength calculations of the structure frame, etc. The strength calculations were carried out using SolidWorks software with Simulation package.
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Koehlen, Christoph, and Norbert Komoschinski. "Automated testing on exhaust emission dynamometers." ATZ worldwide 111, no. 10 (October 2009): 40–41. http://dx.doi.org/10.1007/bf03225098.

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Dissertations / Theses on the topic "Testing of exhaust clamps"

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Bábíček, Ondřej. "Návrh řízení spalovací komory." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-444302.

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The subject of the diploma thesis is research of the testing process exhaust clamps. There is a description of a testing device designed to provide simulations of the real operating conditions on an exhaust assembly. The testing device is named the Hot Gas Test Bench. The thesis solves the optimization process of the test setup by determining the optimal fuel ratio, which is given by air flow as oxidizer and flow of natural gas as fuel. The input parameters which provide flow of mentioned fluids are speeds of blowers. In diploma thesis is created a design of initialization and control process to ensure the optional combustion ratio during the entire length of the test.
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Ramanathan, Sathish Kumar. "Linear Acoustic Modelling and Testing of Exhaust Mufflers." Thesis, KTH, Aeronautical and Vehicle Engineering, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4340.

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Intake and Exhaust system noise makes a huge contribution to the interior and exterior noise of automobiles. There are a number of linear acoustic tools developed by institutions and industries to predict the acoustic properties of intake and exhaust systems. The present project discusses and validates, through measurements, the proper modelling of these systems using BOOST-SID and discusses the ideas to properly convert a geometrical model of an exhaust muffler to an acoustic model. The various elements and their properties are also discussed.

When it comes to Acoustic properties there are several parameters that describe the performance of a muffler, the Transmission Loss (TL) can be useful to check the validity of a mathematical model but when we want to predict the actual acoustic behavior of a component after it is installed in a system and subjected to operating conditions then we have to determine other properties like Attenuation, Insertion loss etc,.

Zero flow and Mean flow (M=0.12) measurements of these properties were carried out for mufflers ranging from simple expansion chambers to complex geometry using two approaches 1) Two Load technique 2) Two Source location technique. For both these cases, the measured transmission losses were compared to those obtained from BOOST-SID models.

The measured acoustic properties compared well with the simulated model for almost all the cases.

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Eriksson, Jonas, and Simon Fagerholm. "Exhaust Analyser for Simplified Emissions Testing on Heavy Duty Vehicles." Thesis, KTH, Maskinkonstruktion (Inst.), 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-157660.

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Over the years the regulations on emissions from heavy duty vehicles have become stricter. Emission measurements during development are therefore done by the manufacturers in order to check compliance in an early stage. This is a time demanding process due to complicated installation and operation of the test equipment. Therefore a simplified concept for replacing such equipment was evaluated and a prototype was designed capable of measuring NOx concentration, exhaust volume flow and CO2 concentration together with reading on board diagnostic messages over CAN in order to include additional truck sensory data. This report describes the development process and contains modular tests of the prototypes separate modules as well as a whole systems test against Horiba OBS-2200, a portable emissions measurement system, in a truck. The results from the tests were that NOx concentration, exhaust volume flow, CO2 concentration and NOx accumulated mass showed good correlation with the references used. The prototype system achieved a coefficient of determination, R2 value, of 0.988 for the NOx mass flow compared to the reference and a total error of less than 7% of accumulated NOx mass.
Med introduktionen av Euro VI har kraven på lägre utsläpp från tunga fordon skärpts. För att kunna uppnå dessa krav är det naturligt att emissionstester utförs även på utvecklingsfordon som en del av utvecklingsprocessen. Dessa tester är tidskrävande på grund av komplicerad installation och svårhanterad utrustning. För att minska problemen med utvecklingstester utvärderades ett nytt koncept för mätning av NOx koncentration, avgasflöde och CO2 koncentration samt avläsning av OBD-data. Denna rapport beskriver utvecklingsprocessen av en prototyp och utvärdering av moduler samt test av hela prototypen mot Horiba OBS-2200, en emissionsmätutrustning som används på Scania CV AB, på en lastbil. Resultaten visar att NOx koncentration, CO2 koncentration, avgasflöde och ackumulerat NOx massutsläpp kan mätas med bra överensstämmelse mot referensutrustningen. Prototypen uppnådde en determinationskoefficient på 0.988 för massflöde av NOx relativt referensen och hade ett totalt fel på mindre än 7% i ackumulerad NOx-massa.
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El, Nemr Yasser. "Acoustic modeling and testing of exhaust and intake system components." Licentiate thesis, KTH, MWL Strömningsakustik, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-48070.

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Intake and exhaust orifice noise contributes to interior and exterior vehicle noise. The order noise radiated from the orifice of the intake and exhaust systems is caused by the pressure pulses generated by the periodic charging and discharging process and propagates to the open ends of the duct systems. The propagation properties of these pulses are influenced by the dimensions and acoustic absorption properties of the different devices in the intake/exhaust line (muffler, turbocharger, catalyst, intercooler, particulate filter, etc.). Additional to this pulse noise, the pulsating flow in the duct system generates flow noise by vortex shedding and turbulence at geometrical discontinuities. Several turbochargers, catalytic converters, Diesel particulate filters and intercoolers elements were investigated and analyzed by performing two-port acoustic measurements with and without mean flow at both cold conditions (room temperature) and hot conditions (running engine test bed) to investigate these devices as noise reduction elements. These measurements were performed in a frequency range of 0 to 1200 Hz at no flow conditions and at flow speeds: 0.05 and 0.1 Mach. A new concept for the acoustic modeling of the catalytic converters, Diesel particulate filters and Intercoolers, and a new geometrical model for the turbocharger were developed. The whole test configuration was modeled and simulated by means of 1-D gas dynamics using the software AVL-Boost. The results were validated against measurements. The validation results comprised the acoustic transmission loss, the acoustic transfer function and the pressure drop over the studied test objects. The results illustrate the improvement of simulation quality using the new models compared to the previous AVL-Boost models.

QC 20111115

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Allam, Sabry. "Acoustic modelling and testing of advanced exhaust system components for automotive engines." Doctoral thesis, KTH, Aeronautical and Vehicle Engineering, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-49.

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The increased use of the diesel engine in the passenger car, truck and bus market is due to high efficiency and lower fuel costs. This growing market share has brought with it several environmental issues for instance soot particle emission. Different technologies to remove the soot have been developed and are normally based on some kind of soot trap. In particular for automobiles the use of diesel particulate traps or filters (DPF:s) based on ceramic monolithic honeycombs are becoming a standard. This new exhaust system component will affect the acoustics and also work as a muffler. To properly design exhaust systems acoustic models for diesel particulate traps are needed. The first part of this thesis considers the modelling of sound transmission and attenuation for traps that consist of narrow channels separated by porous walls. This work has resulted in two new models an approximate 1-D model and a more complete model based on the governing equations for a visco-thermal fluid. Both models are expressed as acoustic 2-ports which makes them suitable for implementation in acoustic software for exhaust systems analysis. The models have been validated by experiments on clean filters at room temperature with flow and the agreement is good. In addition the developed filter models have been used to set up a model for a complete After Treatment Device (ATD) for a passenger car. The unit consisted of a chamber which contained both a diesel trap and a Catalytic Converter (CC). This complete model was also validated by experiments at room temperature. The second part of the thesis focuses on experimental techniques for plane wave decomposition in ducts with flow. Measurements in ducts with flow are difficult since flow noise (turbulence) can strongly influence the data. The difficulties are also evident from the lack of good published in-duct measurement data, e.g., muffler transmission loss data, for Mach-numbers above 0.1-0.2. The first paper in this part of the thesis investigates the effect of different microphone mountings and signal processing techniques for suppressing flow noise. The second paper investigates in particular flow noise suppression techniques in connection with the measurement of acoustic 2-ports. Finally, the third paper suggests a general wave decomposition procedure using microphone arrays and over-determination. This procedure can be used to determine the full plane wave data, e.g., the wave amplitudes and complex wave numbers k+ and k-. The new procedure has been applied to accurately measure the sound radiation from an unflanged pipe with flow. This problem is of interest for correctly determining the radiated power from an engine exhaust outlet. The measured data for the reflection coefficient and end correction have been compared with the theory of Munt [33] and the agreement is excellent. The measurements also produced data for the damping value (imaginary part of the wavenumber) which were compared to a model suggested by Howe [13]. The agreement is good for a normalized boundary layer thickness less than 30-40

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Skousen, Aaron Bradley. "Design, Fabrication and Testing of a Pressurized Oxy-Coal Reactor Exhaust System." BYU ScholarsArchive, 2019. https://scholarsarchive.byu.edu/etd/7518.

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One of the challenges facing engineers is to provide clean, sustainable, affordable and reliable electricity. One of the major pollutants associated with coal combustion is CO2. A proposed technology for efficiently capturing CO2 while producing electricity is pressurized oxy-combustion (POC). The first objective of this work is to design, build and demonstrate an exhaust system for a 20 atmosphere oxy-coal combustor. The second objective of this work is to design and build mounts for a two-color laser extinction method in the POC. The POC reactor enables the development of three key technologies: a coal dry-feed system, a high pressure burner, and an ash management system. This work focuses on cooling the flue gas by means of a spray quench and heat exchanger; controlling the reactor pressure and removing ash from the flue gas. Designs and models of each component in the exhaust systems are presented. Methods to test and assemble each system are also discussed. The spray quench flow rate was measured as a function of pump pressure. Theoretical models for the required amount of water in the spray quench, the flue gas composition, the length and number of tubes in the heat exchanger, and the cyclone collection efficiency are presented. The combined exhaust system is assembled and ready to be tested once issues involving the control system and burner are resolved.
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Tabor, Joseph Edward. "A fogging scrubber to treat diesel exhaust: field testing and a mechanistic model." Thesis, Virginia Tech, 2020. http://hdl.handle.net/10919/99443.

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Diesel particulate matter (DPM) is comprised of two main fractions, organic carbon (OC) and elemental carbon (EC). DPM is the solid portion of diesel exhaust and particles are submicron in size typically ranging from 10 to 1000 nanometers. DPM is a known respirable hazard and occupational exposure can lead to negative health effects. These effects can range from irritation of the eyes, nose, and throat to more serious respirable and cardiovascular diseases. Due to the use of diesel powered equipment in confined airways, underground mine environments present an increased risk and underground mine works can be chronically overexposed. Current engineering controls used to mitigate DPM exposure include cleaner fuels, regular engine maintenance, ventilation controls, and enclosed cabs on vehicles. However even with these controls in place, workers can still be overexposed. The author's research group has previously tested the efficacy of a novel, fog-based scrubber treatment for removing DPM from the air, in a laboratory setting. It was found that the fog treatment improved DPM removal by approximately 45% by number density compared to the control trial (fog off). The previous work stated thermal coagulation between the fog drops and the DPM, followed by gravitational settling of the drops to be the likely mechanisms responsible for the DPM removal. The current work investigated the efficacy of the fog treatment on a larger scale in an underground mine environment, by using a fogging scrubber to treat the entire exhaust stream from a diesel vehicle. A total of 11 field tests were conducted. Based on measurements of nanoparticle number concentration at the inlet and outlet of the scrubber, the fog treatment in the current work showed an average improvement in total DPM removal of approximately 55% compared to the control (fog off) condition. It was found that the treatment more effectively removed smaller DPM sizes, removing an average of 84 to 89% of the DPM in the 11.5, 15.4, and 20.5 nanometer size bins and removing 24 to 30% of the DPM in the 88.6, 115.5, and 154 nanometer size bins. These observations are consistent with expectations since the rate of coagulation between the DPM and fog drops should be greater for smaller diameters. Further analysis of the DPM removal was aided by the development of a mechanistic model of the fogging scrubber. The model uses the inlet data from the experimental tests as input parameters, and it outputs the outlet concentration of DPM for comparison to the experimental outlet data. Results provided support for the notion that DPM removal relies on DPM-fog drop coagulation, and subsequent removal of the DPM-laden drops as opposed to DPM removal by diffusion or inertial impaction of DPM directly to the walls. The model results suggest that inertial impaction of these drops to the scrubber walls is likely much more important than gravitational settling. Moreover, the ribbed geometry of the tubing used for the scrubber apparatus tested here appears to greatly enhance inertial impaction (via enhancement of depositional velocity) versus smooth-walled tubing. This is consistent with previous research that shows particle deposition in tubes with internally ribbed or wavy structures is enhanced compared to deposition in tubes with smooth walls.
Master of Science
Diesel particulate matter (DPM) describes the solid portion of diesel exhaust. These particles are in the nanometer size range (10-1000nm) and can penetrate deep within the lungs presenting a serious health hazard. Because of the use of diesel powered equipment in confined spaces, DPM presents an occupational hazard for underground mine workers. Even with the use of cleaner fuels, regular engine maintenance, proper ventilation, and enclosed vehicle cabs, workers can still be over exposed. Previous work has shown that a water fog treatment can help to remove DPM from the air in a laboratory setting. This removal is due to the DPM particles attaching to the drops, followed by the drops settling out of the air due to gravity or impacting the walls of a tube. To explore a full scale exhaust treatment, a fogging scrubber was built using a fogger and a long tube, and was tested in an underground mine on vehicle exhaust. Experimental results showed that the fog treatment was effective at removing DPM from the exhaust. On average, the fog improved DPM removal by about 55% compared to when the treatment was not employed (fog off). To better understand the mechanisms responsible for DPM removal in the scrubber, a computer model was generated. The model uses the inlet parameters from the field tests, such as inlet DPM and fog concentration and tube geometry, and predicts the scrubber outlet DPM concentration. The model results suggest that the primary way that DPM is removed from the system is by combining with fog drops, which then hit the scrubber tube walls. This effect is probably enhanced by the ribbed structure of the scrubber tubing used here, which may be important for practical applications.
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Bolyard, Jason D. "Evaluation of an air-to-fuel ratio derived exhaust flow rate for in-use emissions testing." Morgantown, W. Va. : [West Virginia University Libraries], 2005. https://eidr.wvu.edu/etd/documentdata.eTD?documentid=4302.

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Thesis (M.S.)--West Virginia University, 2005.
Title from document title page. Document formatted into pages; contains xi, 88 p. : ill. (some col.), col. map. Includes abstract. Includes bibliographical references (p. 59-63).
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Shahan, Michael R. "Development and verification of a laboratory for the emissions testing of locomotive engines." Morgantown, W. Va. : [West Virginia University Libraries], 2008. https://eidr.wvu.edu/etd/documentdata.eTD?documentid=5975.

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Thesis (M.S.)--West Virginia University, 2008.
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Mace, Brian E. "Emissions testing of two recreational marine engines with water contact in the exhaust stream." Morgantown, W. Va. : [West Virginia University Libraries], 2000. http://etd.wvu.edu/templates/showETD.cfm?recnum=1283.

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Thesis (M.S.)--West Virginia University, 2000.
Title from document title page. Document formatted into pages; contains ix, 58 p. : ill. Includes abstract. Includes bibliographical references (p. 49-50).
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Books on the topic "Testing of exhaust clamps"

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Klingenberg, Horst. Automobile Exhaust Emission Testing. Berlin, Heidelberg: Springer Berlin Heidelberg, 1996. http://dx.doi.org/10.1007/978-3-642-80243-0.

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Klingenberg, Horst. Automobile exhaust emission testing: Measurement of regulated and unregulatd exhaust gas components, exhaust emission tests. Berlin: Springer, 1996.

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Klingenberg, Horst. Automobile Exhaust Emission Testing: Measurement of Regulated and Unregulated Exhaust Gas Components, Exhaust Emission Tests. Berlin, Heidelberg: Springer Berlin Heidelberg, 1996.

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Stevenson, PE, ed. Grips, Clamps, Clamping Techniques, and Strain Measurement for Testing of Geosynthetics. 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959: ASTM International, 2000. http://dx.doi.org/10.1520/stp1379-eb.

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Chaboki, A. Supersonic torch facility for ablative testing. Washington, D. C: American Institute of Aeronautics and Astronautics, 1990.

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Summers, Robert L. Integrated exhaust gas analysis system for aircraft turbine engine component testing. [Washington, D.C.?]: National Aeronautics and Space Administration, Scientific and Technical Information Branch, 1985.

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American Society of Heating, Refrigerating and Air-Conditioning.f. Laboratory methods of testing fans used to exhaust smoke in smoke management systems. Atlanta, GA: American Society of Heating, Refrigerating, and Air-Conditioning Engineers, 2005.

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New Jersey. Governor's Motor Vehicle Services Task Force. Report on safety inspections and air emission testing: Governor's Motor Vehicle Services Task Force. [Trenton, NJ]: The Commission, 1990.

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Baz-Dresch, John J. Ev aluation of catalyzed diesel particulate filters used in an underground metal mine. Washington, D.C: U.S. Dept. of the Interior, Bureau of Mines, 1993.

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SAE, World Congress (2004 Detroit Mich ). General emissions 2004. Warrendale, Pa: Society of Automotive Engineers, 2004.

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Book chapters on the topic "Testing of exhaust clamps"

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Klingenberg, Horst. "Automobile Exhaust Gas Emissions." In Automobile Exhaust Emission Testing, 5–44. Berlin, Heidelberg: Springer Berlin Heidelberg, 1996. http://dx.doi.org/10.1007/978-3-642-80243-0_2.

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Klingenberg, Horst. "Vehicle Exhaust Emission Tests." In Automobile Exhaust Emission Testing, 258–310. Berlin, Heidelberg: Springer Berlin Heidelberg, 1996. http://dx.doi.org/10.1007/978-3-642-80243-0_8.

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Klingenberg, Horst. "Measurement of Unregulated Exhaust Gas Components and Diesel Exhaust Gas Particles." In Automobile Exhaust Emission Testing, 220–57. Berlin, Heidelberg: Springer Berlin Heidelberg, 1996. http://dx.doi.org/10.1007/978-3-642-80243-0_7.

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Klingenberg, Horst. "Overview." In Automobile Exhaust Emission Testing, 1–4. Berlin, Heidelberg: Springer Berlin Heidelberg, 1996. http://dx.doi.org/10.1007/978-3-642-80243-0_1.

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Klingenberg, Horst. "Exhaust Emission Measuring Techniques-Quo Vadis?" In Automobile Exhaust Emission Testing, 363–65. Berlin, Heidelberg: Springer Berlin Heidelberg, 1996. http://dx.doi.org/10.1007/978-3-642-80243-0_10.

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Klingenberg, Horst. "Natural and Anthropogenic Emissions on a Global and Country-Related Scale and the Resulting Pollutant Concentrations in the Atmosphere." In Automobile Exhaust Emission Testing, 45–65. Berlin, Heidelberg: Springer Berlin Heidelberg, 1996. http://dx.doi.org/10.1007/978-3-642-80243-0_3.

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Klingenberg, Horst. "Air Quality Control." In Automobile Exhaust Emission Testing, 66–82. Berlin, Heidelberg: Springer Berlin Heidelberg, 1996. http://dx.doi.org/10.1007/978-3-642-80243-0_4.

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Klingenberg, Horst. "Effects." In Automobile Exhaust Emission Testing, 83–119. Berlin, Heidelberg: Springer Berlin Heidelberg, 1996. http://dx.doi.org/10.1007/978-3-642-80243-0_5.

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Klingenberg, Horst. "Measuring Methods and Measuring Instruments." In Automobile Exhaust Emission Testing, 120–219. Berlin, Heidelberg: Springer Berlin Heidelberg, 1996. http://dx.doi.org/10.1007/978-3-642-80243-0_6.

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Klingenberg, Horst. "Vehicle Exhaust Emission Testing Procedures - Overview and Criticism." In Automobile Exhaust Emission Testing, 311–62. Berlin, Heidelberg: Springer Berlin Heidelberg, 1996. http://dx.doi.org/10.1007/978-3-642-80243-0_9.

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Conference papers on the topic "Testing of exhaust clamps"

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Schmitt, Thomas P., Christopher R. Banares, Herve Clement, and Joshua D. Gsell. "Advances in Direct Measurement of Gas Turbine Exhaust Temperature With Multi-Element Thermocouple Rakes for Diagnosing Performance Issues and Characterizing Turbine Upgrades." In ASME 2008 Power Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/power2008-60101.

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Heavy-duty gas turbines are designed to deliver maximum performance within their respective technology class and emissions limits. In order to achieve performance goals consistent with hot section durability constraints, it has become more critical than ever for engineers to have an economical, dependable, and accurate measurement of the average exhaust gas temperature and the associated profiles. Simple thermocouples “rakes” have been used for many years to meet the basic need of measuring planar average temperature. In addition, recent testing experience has shown that the measured radial temperature profile data from these same “rakes” can play a key role in the diagnosis of performance issues and also in the characterization of hardware upgrades. For example, high technology hot section spin-offs from F, G, and H class turbines have been applied as upgrades to older B and E class turbines with dramatic impact on the exhaust temperature pattern. Another example has been the use of pressure/temperature exhaust “rakes” in F class turbines to diagnose changes in the radial temperature profile that result from combustion system upgrades. In both cases, the careful measurement and interpretation of these temperature patterns is crucial to the proper setting of control algorithms that govern performance levels and exhaust emissions. Advances in the design and arrangement of exhaust thermocouple rakes, and in the analysis methods used to interpret the resultant test data, are presented. Several recent cases of using rakes to diagnose performance issues and to characterize the temperature pattern for the purpose of optimizing control settings are discussed.
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Preisel, John H. "Testing at the U.S. Navy’s Gas Turbine Systems Engineering Complex: Part II." In ASME 1991 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1991. http://dx.doi.org/10.1115/91-gt-322.

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Full-scale testing has continued at the US Navy’s Gas Turbine Systems Engineering Complex. The test complex, which is based on the US Navy’s DDG-51 class propulsion plant, has fully transitioned from the construction phase to the testing phase. A complete LM 2500-based propulsion train exists, as well as an electrical generation, distribution and control system. The purpose of this paper is to provide an update to last year’s test report, and to document the new tests and systems integration tasks that have taken place. Particular areas to be discussed include: - electrical system design, installation and testing - crew training and integrated plant operations - full-scale casualty control exercises - integration and testing of an Auxiliary Power Unit - control system upgrades and communication testing At the time that this paper is being written, final design approval has been given to move a second 2500 kW gas turbine generator to the test site. This will be a cogeneration system, since it has a waste heat recovery system installed in the exhaust system. The paper describes the plans for integrating this system into the gas turbine complex. The proposed electrical system test plan is also discussed. The paper concludes by outlining the component and system testing programs that are planned for the future. The future tests represent a continuing commitment to land based test sites and full scale integration testing.
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Seaman, Calvin H., David V. Brower, Suy Q. Le, and Henry H. Tang. "Development and Testing of a Post-Installable Deepwater Monitoring System Using Fiber-Optic Sensors." In ASME 2015 34th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/omae2015-41305.

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This paper addresses the design and development of a fiber-optic monitoring system that can be deployed on existing deep water risers and flow lines; and provides a summary of test article fabrication and the subsequent laboratory testing performed at the National Aeronautics and Space Administration-Johnson Space Center (NASA-JSC). A major challenge of a post-installed instrumentation system is to ensure adequate coupling between the instruments and the riser or flow line of interest. This work investigates the sensor coupling for pipelines that are suspended in a water column (from topside platform to seabed) using a fiber-optic sensor clamp and subsea bonding adhesive. The study involved the design, fabrication, and test of several prototype clamps that contained fiber-optic sensors. A mold was produced by NASA using 3-D printing methods that allowed the casting of polyurethane clamp test articles to accommodate 4-inch and 8-inch diameter pipes. The prototype clamps were installed with a subsea adhesive in a “wet” environment and then tested in the NASA Structures Test Laboratory (STL). The tension, compression, and bending test data showed that the prototype sensor clamps achieved good structural coupling, and could provide high quality strain measurement for active monitoring.
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D’Ercole, Michele, Giovanni Biffaroni, Francesco Grifoni, Francesco Zanobini, and Paolo Pecchi. "Results and Experience From GE Energy’s MS5002E Gas Turbine Testing and Evaluation." In ASME Turbo Expo 2005: Power for Land, Sea, and Air. ASMEDC, 2005. http://dx.doi.org/10.1115/gt2005-68053.

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GE Energy’s new gas turbine, the MS5002E, is a 30 MW-class industrial gas turbine for mechanical drive and power generation applications. The MS5002E (fig.1) is the latest in the Frame5 two-shaft family and, while it retains some features from previous versions, the machine has been specifically designed for low environmental impact and high reliability, in direct response to customer demand for high efficiency and availability [1] & [2]. Main features for the MS5002E are: • 32 MW base load power at ISO inlet conditions (no losses); • 36% thermal efficiency; • 11-stage axial compressor and 17:1 pressure ratio; • reverse flow, six cans, Dry Low NOx (DLN2 technology) combustion system; • two-stages reaction type HP turbine; • two-stages PT leveraged from the LM2500+ HSPT (High Speed Power Turbine); • HP speed operating range 90% (6709rpm) / 101% (7529rpm); • PT speed operating range 50% (2857rpm) / 105% (6000rpm); • exhaust gas temperature (EGT): ∼510°C; • two-baseplates configuration (gas turbine flange-to-flange unit and auxiliary system); • integrated enclosure and baseplate, providing maximum accessibility for maintenance. The design of the MS5002E has been validated through an extensive test program which has included some key-test rigs such as the Rotordynamic Test, the CTV Test (full-scale axial compressor test) and numerous component and full-scale combustion tests in laboratory, conducted in advance of the First Engine to Test (FETT). The MS5002E First Engine to Test was initially started in January 2003 and the validation program has been completed with a full gas turbine teardown, dirty layout (visual and dimensional inspections for each major gas turbine component in as-is conditions) and NDT inspection in June 2004. During engine teardown, disassembly/assembly procedures and tools have been tested and validated. Additional endurance and operability testing is ongoing and will be completed by the end of 2005. The First Engine to Test is a complete equivalent-to-production package including gas turbine, auxiliaries and control system. For the test, a dedicated plateau has been built in Massa, Italy [3]. The gas turbine has been equipped with over 1400 direct measurement points (for a total of more than 2400 direct and indirect measurements) covering the flange-to flange, the package and auxiliaries. All critical-to-quality parameters, such as turbine gas path components temperatures and stresses, combustor temperatures and dynamics, performances and emissions, have been carefully verified by means of redundant instrumentation. This paper presents how the test program has been built on the GE Energy NPI (New Product Introduction) Development Process and how results from tests are fed back to the gas turbine design process. The paper discusses test rig and facilities layout, gas turbine operation experience and lessons learned. Results from the tests and measurements are also discussed.
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Sugimoto, Takao, Katsushi Nagai, Masanori Ryu, Ryozo Tanaka, Takeshi Kimura, and Takashi Nagatomo. "Development of a 20MW-Class High-Efficiency Gas Turbine L20A." In ASME Turbo Expo 2002: Power for Land, Sea, and Air. ASMEDC, 2002. http://dx.doi.org/10.1115/gt2002-30255.

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The L20A gas turbine is a newly developed 20 MW class single-shaft machine. With its high simple-cycle efficiency and high exhaust gas temperature, it is particularly suited for use in distributed power generation, cogeneration and combined cycle applications. A design philosophy has been adopted for the turbine which includes a high efficiency transonic axial-flow compressor with eight can-type combustors and a high inlet temperature of 1250°C. This results in a thermal efficiency of 35% and an overall thermal efficiency of 80% for cogeneration system. In addition, the NOx emissions from the combustor is low and the L20A has a long service life. These features permit long-term continuous operation under various environmental limitations. Due to the engine’s high efficiency and its low component totals, the lowest life cycle cost is achieved. Development testing has verified that the performance, the mechanical characteristics and the emission have satisfied the initial design goals. The engine has been in operation from November 2001 as the first operating unit in a co-generation system at Kawasaki Akashi Works.
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Tanner, Matthew, Peter Stryker, and Indranil Brahma. "Assessment of the Feasibility of Biodiesel Blends for Small Commercial Engines." In ASME 2012 Internal Combustion Engine Division Fall Technical Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/icef2012-92159.

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Petroleum supply and environmental issues have increased interest in renewable low polluting alternative fuels. Published test results generally indicate decreased pollution with similar power output from internal combustion engines burning alternative fuels. More specifically, diesel engines burning biodiesel derived from plant oils and animal fats, not only reduce harmful exhaust emissions, but are renewable and environmentally friendly. A literature review found little previous research with biodiesel in small commercial diesel engines. This paper presents the research that was conducted to study the effect of biodiesel/diesel fuel blends on engine performance and emissions for a Yanmar L100 EE (7.1 kW) engine. This is a standard commercial grade diesel engine used for small equipment such as generators. Independent engine dynamometer and emissions testing were performed to validate the lower emission claims and assess the feasibility of alternative fuels. A testing apparatus capable of making relevant measurements was designed, built and used to perform this study. Fuel blends used included B2, B20, B40, B60, B80, and B100 where the biodiesel component of the blend was a commercial product. An analysis of the fuel showed large percentages of linoleic acid, palmitic acid and stearic acid which is typical for a blend of soybean oil and beef tallow. Test were performed at a constant torque (95 % of the continuously rated value) and variable engine speeds. Test results included calculated values of BMEP, BSFC, thermal efficiency, air mass flow rate, air fuel ratio, corrected NOx, energy lost to exhaust, and heat rejection, and measured values of unburned hydrocarbons, carbon monoxide, and carbon dioxide. Results indicate an increase in thermal efficiency compared to standard diesel and significant reductions of unburned hydrocarbons and carbon monoxide at all engine speeds. Brake specific fuel consumption increased with increasing percent biodiesel consistent with the decreased energy content of blended fuel. Significantly, there were small but consistent reductions in corrected NOx for all blends at all speeds. We posit possible explanations for these results, which are contrary to the published results for larger engines which show an increase in NOx for biodiesel blends.
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McDonald, Joseph F., Charles Schenk, L. James Sanchez, and Brian J. Nelson. "Testing of Catalytic Exhaust Emission Control Systems Under Simulated Locomotive Exhaust Conditions." In SAE 2011 World Congress & Exhibition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2011. http://dx.doi.org/10.4271/2011-01-1313.

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Bridges, James E., Gary G. Podboy, and Clifford A. Brown. "Testing Installed Propulsion For Shielded Exhaust Configurations." In 22nd AIAA/CEAS Aeroacoustics Conference. Reston, Virginia: American Institute of Aeronautics and Astronautics, 2016. http://dx.doi.org/10.2514/6.2016-3042.

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Zhixin Gu, Shuyang Wang, Kaihong Xu, and Xiangdong Liu. "The dynamic testing technology of automobile exhaust." In 2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering (CMCE 2010). IEEE, 2010. http://dx.doi.org/10.1109/cmce.2010.5609558.

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Makida, Mitsumasa, Hideshi Yamada, Yoji Kurosawa, Takeshi Yamamoto, Kazuaki Matsuura, and Shigeru Hayashi. "Preliminary Experimental Research to Develop a Combustor for Small Class Aircraft Engine Utilizing Primary Rich Combustion Approach." In ASME Turbo Expo 2006: Power for Land, Sea, and Air. ASMEDC, 2006. http://dx.doi.org/10.1115/gt2006-91156.

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A series of experimental researches, including ignition and combustion tests at atmospheric pressure conditions, were conducted to develop a combustor for a small class aircraft engine (with pressure ratio about 20). Under restrictions of the combustor size and cost, in order to satisfy the requirement for ignition and blowout performance with sufficient combustion efficiency and NOx reduction for wide range of operating conditions, we applied single fuel nozzles and utilized the rich-burn-quick quench-lean-burn (RQL) combustion approach. Preliminary combustion tests were conducted to optimize the ignition and blowout characteristics, approximately determining positions of air holes and igniter, and selecting fuel nozzle parameters. Consequently, tubular combustor tests with exhaust gas analysis were also conducted to optimize the air mass flow ratio and the air holes’ positions to suppress NOx emissions. Obtained results showing the RQL characteristics of the combustion, decreasing NOx emissions at high equivalence ratio range, are presented in this report, and the optimized air mass flow ratio and position of air holes, which will be applied to a single sector combustor for the testing at practical pressure and temperature conditions, are also presented.
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Reports on the topic "Testing of exhaust clamps"

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Hyde, J. D. Methanol fuel vehicle demonstration: Exhaust emission testing. Final report. Office of Scientific and Technical Information (OSTI), July 1993. http://dx.doi.org/10.2172/10176455.

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Gaeta, R. J., B. Murdock, A. Churny, and N. Hunter. Performance Testing of the Active Core Exhaust (ACE) Fluidic Mixing System. Fort Belvoir, VA: Defense Technical Information Center, March 2006. http://dx.doi.org/10.21236/ada449728.

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Gaereminck, Randal C., and Marque A. Cryderman. Laboratory and Field Testing of the M1 Exhaust Deflector with Pintle Shield. Fort Belvoir, VA: Defense Technical Information Center, March 1991. http://dx.doi.org/10.21236/ada236843.

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Fortener, William G., and Susan S. Saliba. Nonmetals Test and Evaluation. Delivery Order 0003: Fuel System Materials Compatibility Testing of Fuel Additives for Reducing the Amount of Small Particulate in Turbine Engine Exhaust. Fort Belvoir, VA: Defense Technical Information Center, October 2005. http://dx.doi.org/10.21236/ada448662.

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