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Добірка наукової літератури з теми "THERMAL PERFORMANCE ANALYSIS"

Автор: Grafiati

Опубліковано: 11 вересня 2023

Оновлено: 4 листопада 2024

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Статті в журналах з теми "THERMAL PERFORMANCE ANALYSIS"

Boonsu, R., S. Sukchai, S. Hemavibool, and S. Somkun. "Performance Analysis of Thermal Energy Storage Prototype in Thailand." Journal of Clean Energy Technologies 4, no. 2 (2015): 101–6. http://dx.doi.org/10.7763/jocet.2016.v4.261.

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subramanian, G. Bala, and P. Bala shanmugam. "Performance Analysis of Solar Water Purification by using Thermal Method." Global Journal For Research Analysis 3, no. 8 (June 15, 2012): 90–92. http://dx.doi.org/10.15373/22778160/august2014/27.

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Machado, H. A., and A. G. Ramos. "PERFORMANCE ANALYSIS OF THERMAL DIODES." Revista de Engenharia Térmica 5, no. 2 (December 31, 2006): 66. http://dx.doi.org/10.5380/reterm.v5i2.61853.

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The thermal diode consists in a common brick empty inside, where the internal cavity is geometrically arranged as two rectangles, disposed one over the other but not aligned. When the lower side is heated, natural convection in the air inside yields high heat transfer rates from this side to the other. When the upper side is heated, the heat transfer should run by pure conduction, and the brick with air inside works as a thermal insulator. As this brick allows a good conductance in one direction and insulation in the opposite sense, it behaves as an electric diode, being known as thermal diode. This principle is already known for a long time, but its use is still not extensive, and there are no basic rules for the cavity design or even a theoretical study of viability for this use replacing the conventional insulation systems. The objective of this work is to simulate the heat transfer process inside a thermal diode, in order to obtain the optimal geometry and dimensions and to verify the viability of its use in buildings for thermal optimization. The numerical data are validated through comparing with that obtained from the test applied to cellular concrete bricks.

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PERVEZ, Sardar Hamza, Muhammad Ali KAMRAN, Sallahuddin MİR, Abdul AHAD, Muhammad Alam Zaıb KHAN, and Muhammad FAIQ. "Development and performance analysis of hybrid photovoltaic/thermal (PV/T) system." Journal of Thermal Engineering 7, no. 14 (December 30, 2021): 1936–44. http://dx.doi.org/10.18186/thermal.1051272.

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Karakurt, A. Sinan. "PERFORMANCE ANALYSIS OF A STEAM TURBINE POWER PLANT AT PART LOAD CONDITIONS." Journal of Thermal Engineering 3, no. 2 (April 1, 2017): 1121. http://dx.doi.org/10.18186/thermal.298611.

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Gandhidasan, P., and K. N. Ramamurthy. "Thermal performance analysis of pneumatic structures." Energy 13, no. 5 (May 1988): 413–19. http://dx.doi.org/10.1016/0360-5442(88)90065-5.

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Shukla, K. N., A. Pradeep, and S. S. Suneesh. "Thermal performance analysis of silica tiles." Journal of Engineering Physics and Thermophysics 79, no. 6 (November 2006): 1157–63. http://dx.doi.org/10.1007/s10891-006-0218-7.

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TAKANO, Chihiro, Yusuke MURAKI, Tsuyoshi TOTANI, Harunori NAGATA, and Isao KUDO. "3329 Thermal Analysis and Performance Characteristics on Solar Thermal Thruster." Proceedings of the JSME annual meeting 2005.5 (2005): 385–86. http://dx.doi.org/10.1299/jsmemecjo.2005.5.0_385.

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P., Ram Kumar. "Thermal Performance Analysis of Cylindrical Heat Pipes Induced in a Shell Assisted Heat Exchanger." Journal of Advanced Research in Dynamical and Control Systems 12, SP4 (March 31, 2020): 618–35. http://dx.doi.org/10.5373/jardcs/v12sp4/20201528.

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M, Halafawi. "Offset Wells Data Analysis and Thermal Simulations Improve the Performance of Drilling HPHT Well." Petroleum & Petrochemical Engineering Journal 6, no. 1 (2022): 1–15. http://dx.doi.org/10.23880/ppej-16000298.

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To drill new HPHT development wells safely, an exact estimate of their stability is essential. Analyzing previously drilled offset wells can assist in this determination, eliminating any stratigraphic column issues and saving nonproductive time. The challenges found with offset wellbores, their consequences on well design, possible remedies, and preventative measures are discussed in this paper. It examines drilling data from offset wells in order to discover, diagnose, and treat serious issues. Furthermore, thermal simulation was done in order to study the temperature distribution of the wellbore, annuli and fluids during drilling, tripping, circulation, logging, casing and cementing in HPHT zone.

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Дисертації з теми "THERMAL PERFORMANCE ANALYSIS"

Nategh, Shafigh. "Thermal Analysis and Management of High-Performance Electrical Machines." Doctoral thesis, KTH, Elektrisk energiomvandling, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-122695.

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This thesis deals with thermal management aspects of electric machinery used in high-performance applications with particular focus put on electric machines designed for hybrid electric vehicle applications. In the first part of this thesis, new thermal models of liquid (water and oil) cooled electric machines are proposed. The proposed thermal models are based on a combination of lumped parameter (LP) and numerical methods. As a first case study, a permanent-magnet assisted synchronous reluctance machine (PMaSRM) equipped with a housing water jacket is considered. Particular focus is put on the stator winding and a thermal model is proposed that divides the stator slot into a number of elliptical copper and impregna- tion layers. Additionally, an analysis, using results from a proposed simplified thermal finite element (FE) model representing only a single slot of the sta- tor and its corresponding end winding, is presented in which the number of layers and the proper connection between the parts of the LP thermal model representing the end winding and the active part of winding are determined. The approach is attractive due to its simplicity and the fact that it closely models the actual temperature distribution for common slot geometries. An oil-cooled induction machine where the oil is in direct contact with the stator laminations is also considered. Here, a multi-segment structure is proposed that divides the stator, winding and cooling system into a number of an- gular segments. Thereby, the circumferential temperature variation due to the nonuniform distribution of the coolant in the cooling channels can be predicted. In the second part of this thesis, the thermal impact of using different winding impregnation and steel lamination materials is studied. Conven- tional varnish, epoxy and a silicone based thermally conductive impregnation material are investigated and the resulting temperature distributions in three small induction machines are compared. The thermal impact of using different steel lamination materials is investigated by simulations using the developed thermal model of the water cooled PMaSRM. The differences in alloy con- tents and steel lamination thickness are studied separately and a comparison between the produced iron losses and the resulting hot-spot temperatures is presented. Finally, FE-based approaches for estimating the induced magnet eddycurrent losses in the rotor of the considered PMaSRM are reviewed and compared in the form of a case study based on simulations. A simplified three-dimensional FE model and an analytical model, both combined with time-domain 2D FE analysis, are shown to predict the induced eddy current losses with a relatively good accuracy compared to a complete 3D FE based model. Hence, the two simplified approaches are promising which motivates a possible future experimental verification.

QC 20130528

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Burdett, Daniel Simon. "Analysis of thermal and compute performance of data centre servers." Thesis, University of Leeds, 2018. http://etheses.whiterose.ac.uk/20785/.

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Data centres are an increasingly large contributing factor to the consumption of electricity globally, and any improvements to their effectiveness are important in minimising their effect on the environment. This study aims to achieve this by looking at ways of understanding and more effectively utilising IT in data centre spaces. This was achieved through the testing of a range of ways of creating virtual load, and employing them on servers in a controlled thermal environment. A Generic Server Wind-tunnel was designed and built which afforded control of thermal environment and six different servers were tested within, yielding results on performance and thermal effect. Further testing was also conducted on a High Performance Computing server with a view to understanding the effect of internal temperature on performance. Transfer functions were created for each of the six servers, predicting behaviour reliability for five output functions and validating the developed methodology to an appropriate accuracy. The trends seen and the methodology presented should allowed data centre managers better insight into the behaviour of their servers.

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VanDerheyden, Andrew Louis. "Characterization of thermal coupling in chip multiprocessors." Thesis, Georgia Institute of Technology, 2014. http://hdl.handle.net/1853/51892.

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For semiconductor processors temperature increases leakage current, which in turn in- creases the temperature of the processor. This increase in heat is seen by other parts of the processor since heat is diffusive across a processor die. In this way, cores are thermally coupled to one another such that when the temperature of one core increases, the temperatures of all cores on the same die can also increase. This increase in temperature and power consumption is not accompanied by any increase in performance. Cores on a chip can also be performance coupled to one another since cores can share data between them. These interactions between cores present new challenges to microarchitects who seek to optimize the energy consumption of a chip multiprocessor (CMP) comprised of multiple symmetric or asymmetric processing cores. This thesis seeks to understand and model the impact of thermal coupling effects between adjacent cores in a chip multiprocessor starting with measurements with a commercial multi-core processor. The hypothesis is that the thermal coupling of compute cores will be influenced by the adjacent core’s performance characteristics. Specifically, we expect thermal coupling is related to the nature of the workloads, e.g. compute intensive workloads will increase coupling over memory intensive workloads. However, we find that simpler parameters such as frequency of operation have more impact on coupling behaviors than the workload behaviors such as memory intensity or instruction retirement rates. A model is developed to capture thermal coupling effects and enable schemes to mitigate its impact.

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Kadlec, Kal, and Kal Kadlec. "Parametric Opto-Mechanical Performance Analysis of Mounted Lenses Under Thermal Loading." Thesis, The University of Arizona, 2017. http://hdl.handle.net/10150/625904.

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Mounting of lenses in opto-mechanical assemblies can create surface figure errors and refractive index changes through thermal and pre-load stresses. As lenses and barrels change in size under temperature changes, the optical performance degrades due to stress and surface deformations. Currently there is no way of determining the effect of these mechanical perturbations on the system wavefront without performing tedious finite element analysis. Most in-depth opto-mechanical analyses involve case-by-case studies with specific designs while previous general studies fail to take into account the complex geometries. The assumptions made by previous general studies ignore the effects of lens shape. These omissions can have a large effect on the stiffness, stress and surface figure error. A parametric model can combine the best of both an in-depth and general study. By parametrizing the model, a simple analysis can be executed for approximating the environmental-mechanical effects on optical performance. This eliminates the time it takes for an opto-mechanical design to be iterated for an optical or mechanical engineer. This tool could be used for early opto-mechanical design or for finite element analysis verification. The parametric model allows the exploration of the broader design study without confining it to a local design space.

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Huang, Zhaohui. "The analysis of thermal and fire performance of cementitious building components." Thesis, University of Central Lancashire, 1995. http://clok.uclan.ac.uk/1765/.

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This work is concerned with the thermal and structural behaviour of reinforced concrete members in fire conditions. The numerical analyses of temperature histories and mechanical behaviour of reinforced concrete structural members subjected to fire are the major components of this research. In this thesis a non-linear finite element procedure is proposed to predict the temperature distribution history in the cross section of structural members, such as beams composed of reinforced concrete, in fire conditions. A theoretical analysis of heat and moisture transfer in concrete was made which incorporated the simplifications that energy transfer by convection and diffusion in concrete could be neglected. However, the effect of water evaporation in concrete was considered. The thermal properties of concrete were considered as temperature and moisture dependent and the thermal properties of steel as temperature dependent only. The fire conditions were described by standard time-temperature fire curves and convection and radiation boundary conditions were used. In order to validate the model a series of verification tests have been carried out through a quantitative comparison of the model predictions against known test results. Fairly good accuracy has been found. A non-linear finite element procedure for predicting the structural behaviour of the planar reinforced concrete members is also developed. The proposed procedure is based on "plane stress" theory and an iterative, secant stiffness formulation is employed. The complex features of structural behaviour in fire conditions, such as thermal expansion, shrinkage, creep, transient strains, cracking or crushing and change of material properties with temperature are considered in this model. Predictions from the model proposed are compared against experimental results, as well as against the model proposedb y previous researchers, and a better correlation to experimental data is found. It is shown that the secant stiffness approach can provide good numerical stability for the analysis of planar reinforced concrete members in fire conditions. The model proposed in this study has the potential to predict the fire resistance of a planar reinforced concrete members with an accuracy that is adequate for practical purposes if realistic material properties are available.

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Ueda, Kimi. "A Study on Integrated Thermal Control to Improve Intellectual Work Performance." Doctoral thesis, Kyoto University, 2021. http://hdl.handle.net/2433/263750.

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Blair, Stuart R. (Stuart Ryan) 1972. "Thermal hydraulic performance analysis of a small integral pressurized water reactor core." Thesis, Massachusetts Institute of Technology, 2003. http://hdl.handle.net/1721.1/17029.

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Анотація:

Thesis (Nucl. E. and S.M.)--Massachusetts Institute of Technology, Dept. of Nuclear Engineering, 2003.
Includes bibliographical references (p. 117-121).
This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
A thermal hydraulic analysis of the International Reactor Innovative and Secure (IRIS) core has been performed. Thermal margins for steady state and a selection of Loss Of Flow Accidents have been assessed using three methodologies to account for uncertainty. The thermal hydraulic analysis has shown that the IRIS is designed with adequate thermal margin for steady state operation, the locked rotor/shaft shear accident (LR/SS) and for variants of the partial loss of flow accident. To treat uncertainties, three methods were used, ranging from conservative, deterministic methods, to more realistic and computationally demanding Monte Carlo-based methods. To facilitate the computational requirements of the thermal hydraulic analysis, a script-based interface was created for VIPRE. This scripted interface (written in Matlab) supplants the existing file-based interface. This interface allows for repeated, automatic execution of the VIPRE code on a script-modifiable input data, and parses and stores output data to disk. This endows the analyst with much greater power to use VIPRE in parametric studies, or using the Monte Carlo-based uncertainty analysis methodology. The Matlab environment also provides powerful visualization capability that greatly eases the task of data analysis.
by Stuart R. Blair.
Nucl.E.and S.M.

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Blair, Stuart R. "Thermal hydraulic performance analysis of a small integral pressurized water reactor core." Thesis, Springfield, Va. : Available from National Technical Information Service, 2003. http://handle.dtic.mil/100.2/ADA417648.

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Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Nuclear Engineering, 2003.
Thesis supervisor: Neil E. Todreas. Includes bibliographical references (p. 117-121). Also available online.

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Arqam, Mohammad. "Thermomechanical analysis of compact high-performance electric swashplate compressor." Thesis, Griffith University, 2021. http://hdl.handle.net/10072/410159.

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This PhD is sponsored by industry and is part of a project to develop and manufacture smart electric compressor for mobile refrigeration and air conditioning applications on commercial and heavy vehicles including industrial machinery. Compact electric compressors are of great value for the future due to the growth of the electric vehicle market. Recent advancements in the field of mobile air conditioning and refrigeration have witnessed extensive use of the swashplate compressor due to its compact structure, continuous operation, small size, light weight and better thermal comfort inside the vehicle. The design of the swashplate compressor is complex so that it requires considerable contributions from different fields of engineering viz. engineering mechanics, heat transfer and fluid dynamics. The estimate of compressor performance through modelling and experiments at the early stages of design and development serves as a useful tool for the designer. The input power, torque, in-cylinder gas pressure and temperature, flow through valves, and volumetric efficiency are important parameters to characterize the compressor performance. In this thesis, a set of practical thermomechanical models are derived and validated against experiments. An ideal gas based analytical model is developed for a 10 cylinder swashplate compressor with a view to predict its performance in terms of shaft torque and mass flow rate for a given rotational speed requiring minimal computational effort to run. Three sub-models are developed to account for the piston and swashplate kinematics and dynamics through deriving expressions for piston displacement as an explicit function of angle of rotation of swashplate and interactions between forces and moments. The compression process model is formulated to predict in-cylinder temperatures and pressures during one revolution of the swashplate together with refrigerant mass flow rate in and out of the compressor. A complete time-varying model is then developed by combining above three sub-models. Results are obtained in terms of compressor torque and volumetric efficiency and agree well with experiments. Considering the importance of refrigerant flow through reed valves affecting compressor performance, a real-gas, restricted-flow valve model is also developed and compared with the ideal-gas, ideal-valve model. Real gas properties of R134a are evaluated using NIST standard reference database. A minor-loss discharge coefficient approach is used to determine the refrigerant flow rate through reed valves. The model predicts the discharge temperature, refrigerant mass flow rate and volumetric efficiency accurately as a function of rotational speed. The effect of real gas properties, heat transfer to and from the compressor wall during compression and expansion and the valve model are analyzed. The suction side valve model is found to have the largest influence on the compressor performance as a function of rpm whereas heat transfer model has the least. The key contribution of this study is in assembling a practical combination of models that is capable of capturing the essential physics without being overly complex. To the authors’ knowledge this is the first swashplate study that shows clearly the cyclic variation in thermo-physical properties. The literature shows the dynamic characteristics of the compressor are well connected with the start-up transients of the swashplate mechanism and the suction and discharge pressures. To evaluate this, an experimentally validated transient swashplate compressor model is developed including mass moment of inertia of the pistons and swashplate to evaluate the motor torque loading during compressor start-up. The effects of essential parameters such as moment of inertia, bearing torque, viscous resistance to the piston motion, suction and discharge pressures on the compressor performance are presented. The actual start-up behavior is tracked using a high-speed data logger capturing phase currents for the BLDC motor, instantaneous power and rotational speed. The suction and discharge pressures are found to have the largest influence on the starting torque whereas rotational mass moment of inertia has the least. The original contribution of this work is in deriving a transient swashplate compressor model that includes the mass moment of inertia of the swashplate mechanism and clarifying the relative importance of line pressures, viscous losses and bearing resistance on the start-up torque. Since minimizing the size of the compact Brushless DC (BLDC) motor driving the compressor is important, it is worth optimizing the cooling performance of the electric motor. An experimentally validated computational fluid dynamics (CFD) model is developed to investigate the thermal performance of an air-cooled Brushless Direct Current (BLDC) motor driving swashplate compressor. Different fin arrangements on the motor housing are analysed including small protrusions on the fin surface. The findings show greater enhancements can be achieved by adding an extra fin in the cooling flow passage rather than through the inclusion of grooved walls. Thermographs of the motor housing are found to be in close agreement with the model predictions. The key achievement of this thermal investigation is in demonstrating air-cooling is a practical and effective alternative to refrigerant cooling of compact high performance electric swashplate compressors for mobile refrigeration and air conditioning applications. The effect of thermal resistance between the windings and stator core of an air-cooled Brushless DC motor is also investigated. Measurements are found to be in close agreement with predictions. The numerical simulations suggest significant benefits of injecting encapsulation material in the stator core to enhance heat transmission from windings to the surrounding electrical steel. To confirm this, an experimental investigation is carried out by adding thermal resin to the winding slots on 2.5 kW and 4 kW brushless DC motors. The findings show that the potting material can reduce the temperature of the windings by 10 °C to 20 °C for electrical power inputs of 2.4 kW to 3.8 kW. The winding temperature is also found to be sensitive to the winding arrangement in the stator slot. With tighter, more compact windings also leading to significant temperature reductions.
Thesis (PhD Doctorate)
Doctor of Philosophy (PhD)
School of Eng & Built Env
Science, Environment, Engineering and Technology
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Amer, Elhadi M. "Thermal analysis and kinetic studies of the decomposition of some high performance polymers." Thesis, University of Salford, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.272943.

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Книги з теми "THERMAL PERFORMANCE ANALYSIS"

de Souza, Gilberto Francisco Martha, ed. Thermal Power Plant Performance Analysis. London: Springer London, 2012. http://dx.doi.org/10.1007/978-1-4471-2309-5.

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Gilberto Francisco Martha de Souza. Thermal Power Plant Performance Analysis. London: Springer London, 2012.

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Wu, Kingsley Chauncey. Thermal and structural performance of tow-placed, variable stiffness panels. Amsterdam: IOS Press, 2005.

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Lyberg, Mats Douglas. Building thermal performance: Techniques for analysis auditing and monitoring. Gävle: Swedish Institute for Building Research, 1993.

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Wilkes, Kenneth Earl. Analysis of annual thermal and moisture performance of radiant barrier systems. Oak Ridge, Tenn: Oak Ridge National Laboratory, 1991.

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Chaudhry, Safdar Umar. Monitoring, computer simulation and thermal performance analysis of a solar house. Birmingham: University of Birmingham, 1992.

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L, Ash Robert, and Langley Research Center, eds. Prediction of the thermal environment and thermal response of simple panels exposed to radiant heat. Hampton, Va: National Aeronautics and Space Administration, Langley Research Center, 1989.

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Turner, Travis L. Prediction of the thermal environment and thermal response of simple panels exposed to radiant heat. Hampton, Va: National Aeronautics and Space Administration, Langley Research Center, 1989.

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Ridouane, El Hassan. Three-dimensional numerical evaluation of thermal performance of uninsulated wall assemblies: Preprint. Golden, CO: National Renewable Energy Laboratory, 2011.

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A, Rushing R., and United States. National Aeronautics and Space Administration., eds. Interim report on chemical and thermal analysis: International research project on the effects of chemical ageing of polymers on performance properties. Austin, Tex: Texas Research Institute Austin, Inc., 1996.

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Частини книг з теми "THERMAL PERFORMANCE ANALYSIS"

McDowall, R. D. "Performance Qualification (PQ) or End User Testing." In Validation in Thermal Analysis, 90–109. München: Carl Hanser Verlag GmbH & Co. KG, 2022. http://dx.doi.org/10.3139/9781569909072.008.

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Lewicki, James P., and Robert S. Maxwell. "Degradative Thermal Analysis of Engineering Silicones." In Concise Encyclopedia of High Performance Silicones, 191–210. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2014. http://dx.doi.org/10.1002/9781118938478.ch13.

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Huang, Minchao, Jianjun Wu, Jian Li, and Yuqiang Cheng. "Performance Validation Experiment for the Solar Thermal Thruster." In Solar Thermal Thruster, 151–74. Singapore: Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-7490-6_9.

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AbstractThe secondary concentrator and thrust chamber of the solar thermal thruster are integratedly designed using the regenerative cooling method, and the heat exchanger core of the solar thermal thruster is designed using the laminate structure. Based on theoretical analysis and numerical simulation results and with the help of a solar thermal propulsion (STP) experimental system, an experimental study of the optimized design of solar thermal thrusters is carried out.

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Vaishak, S., and Purnanand V. Bhale. "Thermal Performance Analysis of a Heat Pump-Based Photovoltaic/Thermal System." In Advances in Energy Research, Vol. 2, 103–12. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-2662-6_10.

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Bernard, S. Stephen, M. Bakkiyaraj, Md Javeed Ahmed, M. V. Niranjan, R. Nirmal, and K. Hemanand. "Performance Analysis of Oil Expelling Using Vaagai Wood Crusher." In Advances in Design and Thermal Systems, 455–61. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-33-6428-8_37.

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Kumar, Sumit, and Dhaneshwar Mahto. "Thermal Analysis and Performance Evaluation of Peltier Module." In Renewable Energy and its Innovative Technologies, 173–84. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-2116-0_14.

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Subhani, Shaik, and Rajendran Senthil Kumar. "Design and Thermal Performance Analysis on Solar Still." In Lecture Notes in Mechanical Engineering, 717–29. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-4488-0_60.

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Zhao, Hua, and Hongxiang Shu. "Family Thermal Performance Analysis Based on Household Metering." In Sustainability in Energy and Buildings, 387–93. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-03454-1_40.

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Karthik, T., Vignesh M. Shenoy, Prajwal Shankar, Vikram Shankar, B. M. Preetham, and K. H. Jyothiprakash. "Performance Analysis of Compact Heat Exchanger Using Reduced Graphene Oxide Nanofluid." In Recent Advances in Thermal Engineering, 119–33. Singapore: Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-3648-5_12.

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Patel, Bhaskar, Pushpendra Kumar Singh Rathore, Basant Singh Sikarwar, and Krishna Kumar Gupta. "Thermal Energy Storage Performance and Thermal Reliability Analysis of Phase Change Material." In Lecture Notes in Mechanical Engineering, 163–71. Singapore: Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-2481-9_12.

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Тези доповідей конференцій з теми "THERMAL PERFORMANCE ANALYSIS"

Pilet, Tyler, and Tarek Rakha. "Predicting Building Envelope Construction from In-Situ Thermal Testing." In 2022 Building Performance Analysis Conference and SimBuild. ASHRAE and IBPSA-USA, 2022. http://dx.doi.org/10.26868/25746308.2022.simbuild2022_c018.

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Ozkan, Aylin, and Joel Good. "Evaluation of the Thermal Resilience of a Community Hub." In 2022 Building Performance Analysis Conference and SimBuild. ASHRAE and IBPSA-USA, 2022. http://dx.doi.org/10.26868/25746308.2022.simbuild2022_c007.

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Mehra, R. K. "Performance Analysis of In-Situ Combustion Pilot Project." In SPE International Thermal Operations Symposium. Society of Petroleum Engineers, 1991. http://dx.doi.org/10.2118/21537-ms.

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Mitkees, Lobna, Mohammad Heidarinejad, and Brent Stephens. "Numerical Investigation of Thermal Comfort of a Thermally Active Student Desk (TASD) in a Virtual Domain of Historic S.R. Crown Hall Building." In 2022 Building Performance Analysis Conference and SimBuild. ASHRAE and IBPSA-USA, 2022. http://dx.doi.org/10.26868/25746308.2022.c008.

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Machiraju, Harita, Bill Infantolino, Bahgat Sammakia, and Michael Deeds. "Thermal Analysis of MEMS Actuator Performance." In ASME 2007 International Mechanical Engineering Congress and Exposition. ASMEDC, 2007. http://dx.doi.org/10.1115/imece2007-43475.

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A MEMS based device consisting of microactuators was modeled using finite element analysis. The temperature profile of the complete package was obtained and compared to experimental measurements. Good agreement was found between the modeling and measurements. Parametric studies of potential design parameters of the chip package to decrease the power requirements to the actuators have been studied. Increasing the gap between the handle layer and the device layer of the SOI (silicon on insulator) chip from 2 to 3 microns resulted in a reduction of 10% (0.2 Watts) per beam of the actuator. A glass top chip proved to be better at reducing the power requirements for the actuators when compared to a silicon top chip. Modeling shows that relief cuts in the substrate had a larger effect on the power reduction compared to those on the top chip since the heat conduction path to the substrate is a lower resistance path. The power reduction was as high as 50% (1.1 Watts) per beam of the actuator, when the relief cut in the substrate was 50 microns.

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Brunello, Pierfrancesco, and Davide Del Col. "Hygro-Thermal Performance of Ventilated Underground Cavities." In ASME 8th Biennial Conference on Engineering Systems Design and Analysis. ASMEDC, 2006. http://dx.doi.org/10.1115/esda2006-95394.

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The risk assessment regarding overheating in underground structures is becoming quite common among the designers, when internal heat gains are severe or they occur for a long time. Typical is the case of subway tunnel networks, but many other recent examples may be easily found. Quite often however, not only the air temperature pattern is relevant, but also humidity may play an important role, especially if underground water infiltrations are not negligible. In fact, water evaporation or condensation may significantly affect the temperature profiles; on the other hand, high humidity ratios may hamper some activities performed in the cavities. The present paper aims to present a design tool to simulate the hygro-thermal behaviour of ventilated underground cavities. The model can be used to simulate steady-state or transient conditions: it solves the heat and mass transfer equations in the cavity, providing also a criterion for the evaluation of the fog in the air.

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Jayasuriya, W. J. A., A. U. C. D. Athukorala, A. T. D. Perera, M. P. G. Sirimanna, and R. A. Attalage. "Performance Analysis of Photovoltaic Thermal (PVT) Panels Considering Thermal Parameters." In ASME 2016 Power Conference collocated with the ASME 2016 10th International Conference on Energy Sustainability and the ASME 2016 14th International Conference on Fuel Cell Science, Engineering and Technology. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/power2016-59671.

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Solar PVT panels are getting popular for wider spectrum of applications for concurrent heat and power generation (CHP). These panels can provide the heating demand of buildings while generating electricity which becomes ideal for building applications of urban energy systems. Energy flow analysis of such panels and performance analysis of such systems becomes essential to design PVT systems matching with the operating conditions. A number of studies have used both theoretical and experimental methods to optimize PVT. However, this task is challenging due to interrelation of CHP production based on two different phenomena where classical optimization methods cannot be applied directly. Hence basic performance analysis considering primary design parameters plays a major role. In this study, a computational model is developed to evaluate sensitivity of design, operating and climatic parameters for a hybrid PVT system and to analyze the performances of PVT for five different design configurations. Five main configurations of the PVT system are considered based on the heat transfer fluid and the arrangements of glass and tedlar layers of PVT collector. This study presents comprehensive performance analysis conducted to evaluate the sensitivity of mass flow rate and working fluid temperature for the five different design configurations of PVT panels. Results show that glass-tedlar water collector performs better when compared to other configurations. Subsequently, the sensitivity of wind speed and solar irradiation is evaluated. The behavior of thermal and electrical efficiencies is analyzed at different wind speed and solar irradiation levels for a range of mass flow rates and working fluid temperatures. Important conclusions on the performance of PVT panels are given based on this detailed analysis.

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Звіти організацій з теми "THERMAL PERFORMANCE ANALYSIS"

Lee, S. THERMAL PERFORMANCE ANALYSIS FOR WSB DRUM. Office of Scientific and Technical Information (OSTI), June 2008. http://dx.doi.org/10.2172/933168.

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Reagin, Lauren. Thermal Performance Analysis of a Geologic Borehole Repository. Office of Scientific and Technical Information (OSTI), August 2016. http://dx.doi.org/10.2172/1305138.

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Mukhopadhyaya, Phalguni, Milad Mahmoodzadeh, Voytek Gretka, and Ivan Lee. Use of Thermography for Quantitative Building Envelope Thermal Performance Analysis. Department of the Built Environment, 2023. http://dx.doi.org/10.54337/aau541985169.

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Wilkes, K. E. Analysis of annual thermal and moisture performance of radiant barrier systems. Office of Scientific and Technical Information (OSTI), April 1991. http://dx.doi.org/10.2172/5745245.

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Socolinsky, Diego A., and Andrea Selinger. A Comparative Analysis of Face Recognition Performance With Visible and Thermal Infrared Imagery. Fort Belvoir, VA: Defense Technical Information Center, January 2002. http://dx.doi.org/10.21236/ada453159.

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Smith, M. W. Analysis of the Thermal Performance of Tierra I--A Low-Energy High-Mass Residence. Office of Scientific and Technical Information (OSTI), May 2001. http://dx.doi.org/10.2172/783392.

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Schock, Alfred, Chuen T. Or, and Emanuel A. Skrabek. Thermal and Electrical Analysis of MARS Rover RTG, and Performance Comparison of Alternative Design Options. Office of Scientific and Technical Information (OSTI), September 1989. http://dx.doi.org/10.2172/1033406.

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Miguel Cardemil, José, Alan Pino, Allan Starke, Ignacio Calderón-Vásquez, Ian Wolde, Carlos Felbol, Leonardo F. L. Lemos, et al. Guidelines for Simulation Tools and Monitoring the Performance of SHIP Systems. IEA SHC Task 64, June 2024. http://dx.doi.org/10.18777/ieashc-task64-2024-0004.

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The integration of solar thermal technologies into the industrial sector represents a significant move toward sustainable energy utilization. This report presents a comprehensive analysis of various methodologies regarding the design, implementation, and operational management of solar thermal plants. The focus of this analysis encompasses a broad spectrum of approaches that are fundamental to optimizing the efficiency and effectiveness of these renewable energy systems. This document presents the most significant outcomes of the second stage of Subtask C: Simulation and Design Tools, specifically Task 64/IV, jointly developed under the framework of the International Energy Agency's Solar Heating and Cooling Programme and SolarPACES. Throughout the four-year execution of the Task, Subtask C brought together 50 participants from academia, applied research, and project developers from 15 countries. The combination of state-of-the-art research, existing technical documentation, and on-the-ground experience of project developers adds value to the outcomes of this analysis.

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N. Erb. Total System Performance Assessment- License Application Design Selection (LADS) Phase 1 Analysis for Higher Thermal Loa (Feature 26). Office of Scientific and Technical Information (OSTI), June 1999. http://dx.doi.org/10.2172/893820.

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Radosevich, L. G. An analysis of power production performance for solar one, the 10 MWe Solar Thermal Central Receiver Pilot Plant. Office of Scientific and Technical Information (OSTI), June 1987. http://dx.doi.org/10.2172/6523571.

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