Relevant bibliographies by topics / Cooling of coils

Academic literature on the topic 'Cooling of coils'

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Published: 3 June 2022

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Journal articles on the topic "Cooling of coils"

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Theerakulpisut, S., and S. Priprem. "Modeling cooling coils." International Communications in Heat and Mass Transfer 25, no. 1 (January 1998): 127–37. http://dx.doi.org/10.1016/s0735-1933(97)00144-9.

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Li, Haijun, Tianxiang Li, Chaofei Li, Zhaodong Wang, and Guodong Wang. "Improvement of Longitudinal Performance Uniformity of Hot-Rolled Coils for Cold-Rolled DP980 Steel." Metals 10, no. 3 (March 17, 2020): 382. http://dx.doi.org/10.3390/met10030382.

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Cold-rolled DP980 steel is widely used in the automobile industry. Hot-rolled coil is the raw material of cold-rolled DP980 steel, the head and tail parts of which are usually obviously stronger than the body part. The objective of this study is to improve the longitudinal performance uniformity of hot-rolled coils. The material properties of this steel, such as the dynamic continuous cooling transformation, the influence of the cooling mode before coiling, the cooling rate during coil cooling on the microstructure, and mechanical properties of cold-rolled DP980 steel were investigated through thermal simulation experiments and hot rolling experiments. Meanwhile, the temperature field of hot-rolled coil was analyzed using ABAQUS software, which was used to survey the cause of the longitudinal performance fluctuations of hot-rolled coils, combined with an investigation of the aforementioned material properties. The results illustrate that the average cooling rate of the head and tail parts are higher than that of the body part during coil cooling, which causes the longitudinal performance fluctuation of hot-rolled coils. Based on the temperature field of hot-rolled coil, obtained by FEM, the parameters of the U-shaped cooling process were optimized and used in industrial applications.
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Mo, Chun Li, Qiang Li, Xu Ming Guo, and Hao Wang. "Numerical Simulation the Temperature Field of the Multi-Coil Batch during Annealing Process in Bell-Type Furnace." Advanced Materials Research 538-541 (June 2012): 637–41. http://dx.doi.org/10.4028/www.scientific.net/amr.538-541.637.

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In this paper temperature field of multi-coil during batch annealing process in strong forced convective hydrogen atmosphere of Bell-type furnace was simulated, and the influences of heat transferring between steel coil and air flow under a given condition on the temperature field of the steel coil were studied. And then, the temperature field of a single and three coils steel plate were calculated during reheating, holding and cooling process according to the measured annealing curves. The simulated results show that the same trend of temperature in different steel coils. However, considering the heat radiation of steel coil, temperature variation in the topside of coil is higher than that in the bottom of coil.
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Sedlacek, Dieter, and Berenika Hausnerova. "Cooling Aluminium Coils by Outdoor Air." Manufacturing Technology 19, no. 5 (October 1, 2019): 848–54. http://dx.doi.org/10.21062/ujep/383.2019/a/1213-2489/mt/19/5/848.

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5

Kotsubo, Vincent, and Robert D. Black. "5508613 Apparatus for cooling NMR coils." Magnetic Resonance Imaging 14, no. 9 (January 1996): XI. http://dx.doi.org/10.1016/s0730-725x(97)87363-8.

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Mirth, David, and Satish Ramadhyani. "Performance of Chilled-Water Cooling Coils." HVAC&R Research 1, no. 2 (April 1, 1995): 160–71. http://dx.doi.org/10.1080/10789669.1995.10391316.

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Guo and Ye. "Numerical and Experimental Study on a High-Power Cold Achieving Process of a Coil-Plate Ice-Storage System." Energies 12, no. 21 (October 25, 2019): 4085. http://dx.doi.org/10.3390/en12214085.

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Heat dissipation of high-power lasers needs a cold storage and supply system to provide sufficient cooling power. A compact coil-plate heat exchange device has been proposed and applied in the phase-change cold storage system with ice as the cold-storage medium and glycol aqueous solution as the coolant. The heat exchanger consists of several stacked coil-plate units and each unit is constructed with a flat plate and serpentine coils welded on the plate. A simulation model on the cold achieving process of a coil-plate unit was built and verified by the corresponding experiment. The influences of the structural parameters (tube diameter, tube pitch, and plate spacing) of the unit and the inlet temperature and volume flow rate of the coolant on the heat exchange power density were analyzed to obtain the maximal cooling effect in a limited time period. It was found that the heat exchange power density is limited when the tube pitch and plate spacing are large, otherwise, the effective cooling time period is limited. A small plate spacing can make the power density decrease rapidly in the later stage. The inlet coolant temperature can significantly affect the heat exchange power density while the coolant volume flow rate in tube has a small effect on the power density when the coolant is in turbulent state. In a time period of 900 s, for a coil-plate heat exchanger with a plate size of 940 mm ×770 mm and a tube pitch of 78 mm, when the plate spacing is 20 mm, the average heat exchange power density is 5.1 kW/m2 when the inlet temperature and volume flow rate of the coolant are 20 °C and 0.5 m3/h, respectively. The total cooling power of several stacked coil-plate units in the limited time period can match the high requirement of laser heat dissipation.
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Kanimozhi, B., Amit Tanaji Shinde, Ashutosh Kumar, and Alok Kumar. "Formation of Bio-Fuel from Waste Plastic Scrap." Applied Mechanics and Materials 766-767 (June 2015): 551–56. http://dx.doi.org/10.4028/www.scientific.net/amm.766-767.551.

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The objective of the paper is to investigate the formation of Bio-fuel from waste plastic scrap. The experiment was carried out by converting the waste plastic into useful alternative oil by means of pyrolysis process. Main component of working model were furnace as heating coil and condenser as cooling coil tube. The arrangements have made to continue the process constantly. The waste plastics have kept in furnace. The furnace having heating coils which provides required heat to melt the waste plastics by three phase electric supply. Due to the high temperature in furnace waste plastics have been melted and liquefied at 350°C and formed as a vapour at 450° C. Then these vapours were sent to condenser which cools from heated vapour into liquefied oil by cooling process with slow down temperature of 30°C to 35°C. Here the vapour is fully consisting of gaseous hydrocarbons property. These hydro carbons can be used as a bio fuel after the condensation. The fuel properties were tested in reputed laboratory testing centre.
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Mei, V. C. "Heat Pump Ground Coil Analysis With Thermal Interference." Journal of Solar Energy Engineering 110, no. 2 (May 1, 1988): 67–73. http://dx.doi.org/10.1115/1.3268247.

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When two horizontal ground coils are buried in the same trench, one on top of the other, the total energy exchange between coils and ground increases drastically over that of a single coil for the same trench length. However, because of the thermal interference between the two coils, the overall performance of the two-coil trench is very difficult to determine. Traditionally this type of problem is handled by the line source mirror-image approach. However, in applying the line source approach, the strength of the source is not known precisely and must be estimated. Most designers will estimate this value very conservatively in order to be on the safe side, and this will result in a longer coil than is actually needed. This paper provides a detailed mathematical model to describe the operation of the two-coil system that can calculate more realistically the performance of the ground coils, which in turn could make the ground coil heat pump system more economically competitive with other heating and cooling systems. The effect of thermal interference is clearly shown in the calculated soil temperature profile. The effect of fluid inlet positions, from upper or lower coils, is also studied. The comparison of measured and calculated daily energy absorbed from the ground indicated a maximum error of 27 percent, with the average error at less than 12 percent, calculated values are on the conservative side. This model is better than the line source approach for calculating the performance of two coils in the same trench. It can be used for design purposes, or used to check such coil designs by other methods.
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BROWN, DAVID A., and YOUNG L. BAE. "Titanium Cooling Coils for Surface Ship Applications." Naval Engineers Journal 102, no. 3 (May 1990): 162–71. http://dx.doi.org/10.1111/j.1559-3584.1990.tb02642.x.

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Dissertations / Theses on the topic "Cooling of coils"

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Silveira, Ronan Gobbi da. "Análise térmica de sistema de refrigeração direta em fermentadores cilindrocônicos /." Bauru : [s.n], 2009. http://hdl.handle.net/11449/91713.

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Orientador: Paulo César Razuk
Banca: Augusto Ronchi Junior
Banca: Waldemar Gastoni Venturini Filho
Resumo: A fermentação alcólica, processo central da indústria cervejeira é um processo que libera uma grande quantidade de calor. Sendo assim, os recipientes de fermentação devem estar equipados com instalações de refrigeração para o correto controle da temperatura. A presente pesquisa tem como objetivo a análise da troca de calor de fermentadores cilindrocônicos dotados de sistema de refrigeração direta através de serpentina meia-cana. Para a consecução desse objetivo foi necessária a elaboração de um roteiro de cálculo seguro baseado em equações e experiências encontradas em renomadas literaturas. A análise dos resultados encontrados foi realizada a partir dos valores obtidos através do programa de cálculo atualmente utilizado em uma das maiores empresas fornecedoras deste tipo de equipamento para o mercado cervejeiro, a Dedini Indústrias de Base. Constatou-se que os valores obtidos pelo roteiro apresentado na presente dissertação foram maiores do que os calculados no programa, concluindo-se que as diferenças e dificuldades de resfriamento encontradas em equipamentos semelhantes fornecidos a clientes distintos podem ter origem na quantidade de refrigerante. As estimativas para o coeficiente global de transferência de calor independem do roteiro de cálculo seguido, pois há uma variação máxima de 3,5 % nos resultados para o cálculo deste. O mesmo é verificado para as vazões mássicas de amônia requerida, onde esta variação é ainda menor (cerca de 3,0%)
Abstract: Alcoholic fermentation, brewery industry's central process that liberates a great amount of heat. Therefore, the fermentation containers should be equipped with cooling installations for correct temperature control. The present research aims to analyze the heat exchange in cylindroconical fermenters endowed with a halp-pipe coil direct cooling system. To achieve this objective, the elaboration of a sate calculation route based on equations and experiences found in renowned references was necessary. The validation of the results was accomplished from the values obtained through the calculation program now used in one the largest supplying companies of this kind of equipment for the brewer market, Dedini indústrias de Base. It was verified that the flow of ammonia for the cooling system obtained by the itinerary introduced in the present article was larger than the one calculated in the program, and it can be concluded that the differences and cooling difficulties found in similar equipments supplied to different customers can have origin in the amount of ammonia used in the cooling system. The values for the overal heat transfer coefficient do not depend on the calculation itinerary followed, because there is a maximum variation of 3.5% in the results for the calculation of the coeffiecient. The same is verified for the mass flows of requested ammonia, where this variation is still smaller (about 3.0%)
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Silveira, Ronan Gobbi da [UNESP]. "Análise térmica de sistema de refrigeração direta em fermentadores cilindrocônicos." Universidade Estadual Paulista (UNESP), 2009. http://hdl.handle.net/11449/91713.

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Made available in DSpace on 2014-06-11T19:25:27Z (GMT). No. of bitstreams: 0 Previous issue date: 2009-06-25Bitstream added on 2014-06-13T19:32:32Z : No. of bitstreams: 1 silveira_rg_me_bauru.pdf: 2564361 bytes, checksum: 59979913e85e47f8a21eb524c379df8e (MD5)
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A fermentação alcólica, processo central da indústria cervejeira é um processo que libera uma grande quantidade de calor. Sendo assim, os recipientes de fermentação devem estar equipados com instalações de refrigeração para o correto controle da temperatura. A presente pesquisa tem como objetivo a análise da troca de calor de fermentadores cilindrocônicos dotados de sistema de refrigeração direta através de serpentina meia-cana. Para a consecução desse objetivo foi necessária a elaboração de um roteiro de cálculo seguro baseado em equações e experiências encontradas em renomadas literaturas. A análise dos resultados encontrados foi realizada a partir dos valores obtidos através do programa de cálculo atualmente utilizado em uma das maiores empresas fornecedoras deste tipo de equipamento para o mercado cervejeiro, a Dedini Indústrias de Base. Constatou-se que os valores obtidos pelo roteiro apresentado na presente dissertação foram maiores do que os calculados no programa, concluindo-se que as diferenças e dificuldades de resfriamento encontradas em equipamentos semelhantes fornecidos a clientes distintos podem ter origem na quantidade de refrigerante. As estimativas para o coeficiente global de transferência de calor independem do roteiro de cálculo seguido, pois há uma variação máxima de 3,5 % nos resultados para o cálculo deste. O mesmo é verificado para as vazões mássicas de amônia requerida, onde esta variação é ainda menor (cerca de 3,0%)
Alcoholic fermentation, brewery industry's central process that liberates a great amount of heat. Therefore, the fermentation containers should be equipped with cooling installations for correct temperature control. The present research aims to analyze the heat exchange in cylindroconical fermenters endowed with a halp-pipe coil direct cooling system. To achieve this objective, the elaboration of a sate calculation route based on equations and experiences found in renowned references was necessary. The validation of the results was accomplished from the values obtained through the calculation program now used in one the largest supplying companies of this kind of equipment for the brewer market, Dedini indústrias de Base. It was verified that the flow of ammonia for the cooling system obtained by the itinerary introduced in the present article was larger than the one calculated in the program, and it can be concluded that the differences and cooling difficulties found in similar equipments supplied to different customers can have origin in the amount of ammonia used in the cooling system. The values for the overal heat transfer coefficient do not depend on the calculation itinerary followed, because there is a maximum variation of 3.5% in the results for the calculation of the coeffiecient. The same is verified for the mass flows of requested ammonia, where this variation is still smaller (about 3.0%)
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3

Korolija, Ivan. "Heating, ventilating and air-conditioning system energy demand coupling with building loads for office buildings." Thesis, De Montfort University, 2011. http://hdl.handle.net/2086/5501.

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The UK building stock accounts for about half of all energy consumed in the UK. A large portion of the energy is consumed by nondomestic buildings. Offices and retail are the most energy intensive typologies within the nondomestic building sector, typically accounting for over 50% of the nondomestic buildings’ total energy consumption. Heating, ventilating and air conditioning (HVAC) systems are the largest energy end use in the nondomestic sector, with energy consumption close to 50% of total energy consumption. Different HVAC systems have different energy requirements when responding to the same building heating and cooling demands. On the other hand, building heating and cooling demands depend on various parameters such as building fabrics, glazing ratio, building form, occupancy pattern, and many others. HVAC system energy requirements and building energy demands can be determined by mathematical modelling. A widely accepted approach among building professionals is to use building energy simulation tools such as EnergyPlus, IES, DOE2, etc. which can analyse in detail building energy consumption. However, preparing and running simulations in such tools is usually very complicated, time consuming and costly. Their complexity has been identified as the biggest obstacle. Adequate alternatives to complex building energy simulation tools are regression models which can provide results in an easier and faster way. This research deals with the development of regression models that enable the selection of HVAC systems for office buildings. In addition, the models are able to predict annual heating, cooling and auxiliary energy requirements of different HVAC systems as a function of office building heating and cooling demands. For the first part of the data set development used for the regression analysis, a data set of office building simulation archetypes was developed. The four most typical built forms (open plan sidelit, cellular sidelit, artificially lit open plan and composite sidelit cellular around artificially lit open plan built form) were coupled with five types of building fabric and three levels of glazing ratio. Furthermore, two measures of reducing solar heat gains were considered as well as implementation of daylight control. Also, building orientation was included in the analysis. In total 3840 different office buildings were then further coupled with five different HVAC systems: variable air volume system; constant air volume system; fan coil system with dedicated air; chilled ceiling system with embedded pipes, dedicated air and radiator heating; and chilled ceiling system with exposed aluminium panels, dedicated air and radiator heating. The total number of models simulated in EnergyPlus, in order to develop the input database for regression analysis, was 23,040. The results clearly indicate that it is possible to form a reliable judgement about each different HVAC system’s heating, cooling and auxiliary energy requirements based only on office building heating and cooling demands. High coefficients of determination of the proposed regression models show that HVAC system requirements can be predicted with high accuracy. The lowest coefficient of determination among cooling regression models was 0.94 in the case of the CAV system. HVAC system heating energy requirement regression models had a coefficient of determination above 0.96. The auxiliary energy requirement models had a coefficient of determination above 0.95, except in the case of chilled ceiling systems where the coefficient of determination was around 0.87. This research demonstrates that simplified regression models can be used to provide design decisions for the office building HVAC systems studied. Such models allow more rapid determination of HVAC systems energy requirements without the need for time-consuming (hence expensive) reconfigurations and runs of the simulation program.
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Kojima, Hiroki, Xin Chen, Naoki Hayakawa, Fumihiro Endo, and Hitoshi Okubo. "Dynamic Thermal Characteristics of HTS Coil for Conduction-Cooled SMES." IEEE, 2009. http://hdl.handle.net/2237/13940.

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葉啓明 and Kai-ming Ip. "Dynamic response of a cooling and dehumidifying coil to variations in air flow rate." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1997. http://hub.hku.hk/bib/B31215361.

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Deng, Shi-Ming. "Modelling and control of an air conditioning system with emphasis on cooling coil behaviour." Thesis, London South Bank University, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.303912.

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Ip, Kai-ming. "Dynamic response of a cooling and dehumidifying coil to variations in air flow rate /." Hong Kong : University of Hong Kong, 1997. http://sunzi.lib.hku.hk/hkuto/record.jsp?B19832369.

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Vašulka, Tomáš. "Studie chladicího systému budovy s ohledem na klimatickou změnu v ČR." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-442847.

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The diploma thesis aims to prepare a study of the cooling system of a multifunctional building with regard to climate change predicted until the middle of the 21st century. The work includes determining the heat load of refrigerated rooms and designing measures to reduce heat gains in the summer. Diploma thesis includes design of a cooling system with fan-coil units as end appliances with the necessary hydraulic calculations. A single-stage absorption cooling unit is used as the considered cooling source, to which a free cooling heat exchanger is assigned. The design of the cooling source includes the necessary hydraulic calculations and dimensioning of the system ensuring its functional operation. Part of the diploma thesis is drawing documentation of cooling technology and connection of fan-coil units.
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Unger, Oskar. "Fjärrkyla i Sundsvall : Optimering av framledningskurva för akviferbaserad fjärrkyla." Thesis, Mittuniversitetet, Institutionen för kemiteknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-36587.

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På uppdrag av Sundsvall Energi AB har FVB Sverige AB påbörjat en förstudie kring etableringen av fjärrkyla i Sundsvall. Produktionsmedlen i det planerade nätet kommer att innefatta frikyla från akviferen och en kompressordriven kylmaskin. Det övergripande syftet med projektet har dels varit att ta fram en optimal framledningskurva, samt att ta reda på i vilken utsträckning frikylan kan nyttjas innan kylmaskinen måste användas som spetsproduktionsmedel. Projektet har inledningsvis fokuserat på att undersöka hur klimatet och kylbehovet ser uti Sundsvall. Kylbehovet granskades utifrån sex befintliga byggnader som nyttjar dricksvattenkyld fjärrkyla i Sundsvall. Därefter undersöktes olika typer av klimatsystem för att utröna vad de har för krav på framledningstemperaturen. Det konstaterades att kylbatterier var den komponent som kräver lägst framledningstemperatur, varför kyleffektberäkningar utfördes på dem. Resultatet ur kylbatteriberäkningarna fick motsvara den av fjärrkylenätet avgivna kyleffekten vid varierande utomhustemperatur. Genom att väga den avgivna kyleffekten vid varierande framledningstemperatur mot det erforderliga kyleffektbehovet vid varierande utomhustemperatur kunde framledningskurvan ta form. Akviferen antas hålla en temperatur på omkring 7°C till 9°C året runt, men utgångspunkten i detta projekt har varit att den konstant är 9°C. Under de förutsättningarna har framledningstemperaturen kunnat bestämmas till att vara 11°C under större delen av året, men att den sänks vid en utomhustemperatur på omkring 21°C i varierande grad ned till 6°C vid utomhustemperaturen 25°C. Med hjälp av framledningskurvan kunde därefter frikylans täckningsgrad bedömas. Resultatet visar att om framledningens temperatur höjs med 0,5–1,0°C i distributionsnätet kommer kylmaskinen att behöva vara i drift under 159 timmar per år. Om istället uppvärmningen blir 1,5° eller 2,0°C kommer kylmaskinen behöva vara i drift under 233 timmar respektive 325 timmar. Sammantaget har samtliga av projektets konkreta och verifierbara mål besvarats.
On behalf of Sundsvall Energi AB, FVB Sverige AB has initiated a preliminary study on the establishment of a district cooling system in Sundsvall. The main source for the cooling will be cool water drawn from the aquifer and a compressor chiller. The main purpose of this project has both been to provide the optimal supply temperature of the cooling network at different outdoor temperatures, and to find out to what extent the cool water from the aquifer can be used by itself as the cooling source. The project was initially focused on examining the climate and cooling demand in Sundsvall. The cooling demand was examined on the basis of six existing buildings that uses freshwater district cooling, and different types of climatesystems were then examined to ascertain what their requirements for the supply temperature are. Cooling coil batteries were found to be the component that requires the lowest supply temperature; therefore, the cooling power calculations were relied on them. The outcome of the cooling coil battery calculations was presumed to correspond to the cooling power of the network itself. By comparing the cooling power of the coil batteries at different supply temperatures and the cooling demand at different outdoor temperatures the main supply temperature for the district cooling network took shape. The aquifer is expected to maintain a temperature of approximately 7°C to 9°C, but in this project the temperature is set to exactly 9°C. On those premises the supply temperature of the cooling network could be set to 11°C for most of the year, but with a reduction of the supply temperature at outdoor temperatures around 21°C. Subsequently the supply temperature is reduced to 6°C at the outdoor temperature 25°C. Via the supply temperature curve, the aquifer cooling coverage ratio could be assessed. The result shows that if the supply temperature is raised between 0,5°C and 1,0°C in the distribution network the compressor chiller will have to be in operation for 159 hours per year. If instead the supply temperature is raised 1,5°C or 2,0°C, the compressor chiller must be in operation for 233 hours and 325 hours, respectively. In summary, all the goals and targets of the project have been completed.
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Rakkimuthu, Sathyaprabha. "Improved Thermoregulation Of Brain Temperature Using Phase Change Material-Mediated Head Cooling System." University of Cincinnati / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1613750048541054.

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Books on the topic "Cooling of coils"

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American Society of Heating, Refrigerating and Air-Conditioning Engineers. Method of testing forced circulation air cooling and air heating coils. Atlanta, GA: American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc., 2000.

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Epstein, Charles M. TMS stimulation coils. Edited by Charles M. Epstein, Eric M. Wassermann, and Ulf Ziemann. Oxford University Press, 2012. http://dx.doi.org/10.1093/oxfordhb/9780198568926.013.0004.

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The simplest transcranial magnetic stimulation (TMS) coil is a circular one. The induced current is maximum near the outer edge of the coil while the magnetic field is the maximum under the center of the coil. TMS coils have good penetration to the cerebral cortex. They are commonly placed at the cranial vertex, where they can stimulate both hemispheres simultaneously. The main drawback of circular coils is their lack of focality. Several complex designs for multiloop coils have been proposed to increase the focality or improve the penetration to deep brain structures. This article describes factors of TMS coil design such as mechanical forces and coil lead wires, cooling systems, materials of construction of coil windings, etc. To reduce the risk of lethal electrical shock the entire high-voltage power system, including the lead wires and stimulation coil, must be isolated from earth ground.
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"Astromag" coil cooling study. Madsion, Wis: Applied Superconductivity Center, University of Wiscosin-Madsion, 1990.

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W, Van Sciver Steven, and Goddard Space Flight Center, eds. "Astromag" coil cooling study. Madsion, Wis: Applied Superconductivity Center, University of Wiscosin-Madsion, 1990.

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Parker, Philip M. The 2007-2012 World Outlook for Air Conditioning-And Refrigeration-Type Central System Volatile Refrigerant Cooling Finned Coils. ICON Group International, Inc., 2006.

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The 2006-2011 World Outlook for Air Conditioning-And Refrigeration-Type Central System Volatile Refrigerant Cooling Finned Coils. Icon Group International, Inc., 2005.

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Method of Testing Forced Circulation Air Cooling and Air Heating Coils (A S H R a E Standards, 33-2000). Amer Society of Heating, 2000.

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Parker, Philip M. The 2007-2012 World Outlook for Air Conditioning-And Refrigeration-Type Central System Standard Water Cooling and Heating and Cleanable Tube Water Finned Coils. ICON Group International, Inc., 2006.

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The 2006-2011 World Outlook for Air Conditioning-And Refrigeration-Type Central System Standard Water Cooling and Heating and Cleanable Tube Water Finned Coils. Icon Group International, Inc., 2005.

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Zinn, S., and S. L. Semiatin. Elements of Induction Heating. ASM International, 1988. http://dx.doi.org/10.31399/asm.tb.eihdca.9781627083416.

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Elements of Induction Heating: Design, Control, and Applications discusses the principles of electromagnetic induction and the setup and use of induction heating processes and equipment. The first few chapters cover the theory of induction heating and the factors that must be considered when selecting and configuring components for a given application. As the text explains, the frequency required for efficient heating is determined by the geometry of the coil, the properties, size, and shape of the workpiece, and the need to maintain adequate skin effect. It also depends on proper tuning and load matching, which is explained as well. Subsequent chapters discuss the use of external cooling, temperature sensing, and power-timing devices, the fundamentals of process control, the role of flux concentrators, shields, and susceptors, and the integration of material handling equipment. The book also covers coil design and fabrication and explains how induction heating systems can be tailored for specific applications such as billet and bar heating, surface hardening, pipe welding, tin reflow, powder metal sintering, and brazing, and for curing adhesives and coatings. For information on the print version, ISBN 978-0-87170-308-8, follow this link.
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Book chapters on the topic "Cooling of coils"

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Vakiloroaya, Vahid, and Jafar Madadnia. "Cooling Coil Design Improvement for HVAC Energy Savings and Comfort Enhancement." In Sustainability in Energy and Buildings, 965–74. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-36645-1_85.

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Herd, K. G., R. A. Ackermann, and P. S. Thompson. "A Gaseous-Helium Cooling System for a High-Tc Superconducting Coil." In Advances in Cryogenic Engineering, 277–81. Boston, MA: Springer US, 1998. http://dx.doi.org/10.1007/978-1-4757-9047-4_32.

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Lvovsky, Yury M., Gary W. Neeley, Wei Tong, Kenneth E. Grut, and Timothy A. Antaya. "Effect of Incorporating Cooling Channels into the Coil Support Structure of the TPX Toroidal Field Magnet." In A Cryogenic Engineering Conference Publication, 449–56. Boston, MA: Springer US, 1996. http://dx.doi.org/10.1007/978-1-4613-0373-2_58.

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"Heat Exchangers and Cooling Coils." In Principles of Heating, Ventilation and Air Conditioning with Worked Examples, 265–338. WORLD SCIENTIFIC, 2015. http://dx.doi.org/10.1142/9789814667777_0007.

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Khamis, M., and M. Hassab. "Thermal Design of Cooling and Dehumidifying Coils." In Heat Exchangers - Basics Design Applications. InTech, 2012. http://dx.doi.org/10.5772/32536.

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"Leaks in Copper Tubing From Cooling Coils of a Large Air-Conditioning Unit." In Handbook of Case Histories in Failure Analysis, 204–6. ASM International, 1993. http://dx.doi.org/10.31399/asm.fach.v02.c9001338.

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Zahn, G. R., J. L. Duchateau, W. H. Fietz, B. Gravil, R. Heller, F. Millet, S. Nicollet, and P. Chesny. "Design of a Cooling System for the Cold Test of the Iter TF Coils before Installation." In Proceedings of the Twentieth International Cryogenic Engineering Conference (ICEC20), 87–90. Elsevier, 2005. http://dx.doi.org/10.1016/b978-008044559-5/50021-1.

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"Auxiliary Equipment for Induction Heating." In Elements of Induction Heating, 77–84. ASM International, 1988. http://dx.doi.org/10.31399/asm.tb.eihdca.t65220077.

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Abstract This chapter describes two types of auxiliary equipment required in most induction heating installations: cooling systems and device timers. Water- and vapor-based systems used for cooling the power supply and the induction coil are described. The chapter concludes with a brief discussion of timers, with emphasis on open-loop timing systems.
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"Multiobjective Programming for Waste Heat Recovery of an Industrial Gas Turbine." In Multi-Objective Optimization of Industrial Power Generation Systems, 110–47. IGI Global, 2020. http://dx.doi.org/10.4018/978-1-7998-1710-9.ch003.

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In gas power plants, the overall efficiency of the generation system plays a key role in ensuring stable and efficient power supply. Terms and conditions of power supply are usually detailed in power purchase agreements (PPA). Current requirements set by PPAs limit the net power produced by the supplier. This creates opportunities for plant optimization efforts to focus on system efficiency—aiming to increase system lifetime with lower operational costs. In this chapter, a gas turbine (GT) system is considered to demonstrate certain features of power plant optimization. Waste heat from the GT exhaust stack is fed into an absorption chiller (AC). The AC cools the air intake at the GT compressor. This cooling reduces the heat rate and increases the GT efficiency. This combined GT-AC system was optimized in a multi-objective (MO) setting while considering power limitations (imposed by the PPA).
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Sanada, Y., T. Hamajima, M. Shibui, M. Naganuma, M. Shimada, O. Osaki, T. Fujioka, et al. "DEVELOPMENT OF A FORCED-COOLING CABLE-IN-CONDUIT SUPERCONDUCTING COIL (DPC-TJ)." In Proceedings of the Twelfth International Cryogenic Engineering Conference Southampton, UK, 12–15 July 1988, 789–93. Elsevier, 1988. http://dx.doi.org/10.1016/b978-0-408-01259-1.50152-2.

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Conference papers on the topic "Cooling of coils"

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Smith, Graham D. J. "Theoretical Modeling for Impingement Cooling of Large Scale Coils of Aluminium." In ASME 2009 Heat Transfer Summer Conference collocated with the InterPACK09 and 3rd Energy Sustainability Conferences. ASMEDC, 2009. http://dx.doi.org/10.1115/ht2009-88161.

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The use of a cylindrical array of air jets to cool a 4.1 tonne coil of Aluminium alloy is shown, theoretically, to improve the free convection cooling time over the 673K (752°F) to 323K (122°F) range from 49hrs to roughly 4hrs. The transient theory developed to model this process includes both radiation and convection heat loss in a numerical solution which is applicable to large coils of aluminium typically produced on a hot strip mill. In situations where liquid spray chambers are not chosen as an alternative cooling method, the results indicate that air impingement jets are a viable technique for cooling unscheduled coil batches which require rapid handling to meet market demands. When comparing the various combinations of surfaces of the coil that may be cooled, impingement cooling the entire surface area (cooling time 3.75hrs) offers little advantage over neglecting to cool the coil’s hollow inner core (cooling time 4.28hrs). However, impingement cooling only the external and internal cylindrical areas (cooling time 5 hrs) represents possibly the easier method of cooling to apply in industry yet only extends the cooling time by 1.25hrs. Predictions for such coils of 6mm thick sheet over this 350K (662°F) range, suggest that cooling times of roughly 6hrs may be possible in practice.
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Gu, Yongjian. "Analysis of Air Cooling and Dehumidification Process Through Cooling Coils." In 5-6th Thermal and Fluids Engineering Conference (TFEC). Connecticut: Begellhouse, 2021. http://dx.doi.org/10.1615/tfec2021.edu.036169.

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Arora, C. P., and P. V. Ramachandran. "COMPUTER - AIDED DESIGN OF DIRECT EXPANSION COOLING COILS." In International Heat Transfer Conference 8. Connecticut: Begellhouse, 1986. http://dx.doi.org/10.1615/ihtc8.4550.

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Hamaguchi, S., S. Imagawa, T. Obana, N. Yanagi, S. Moriuchi, H. Sekiguchi, K. Oba, et al. "PERFORMANCE OF UPGRADED COOLING SYSTEM FOR LHD HELICAL COILS." In ADVANCES IN CRYOGENIC ENGINEERING: Transactions of the Cryogenic Engineering Conference - CEC, Vol. 52. AIP, 2008. http://dx.doi.org/10.1063/1.2908543.

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Wornyoh, E. Y. A., D. K. Patel, and L. D. Schuessler. "An In Situ Mechanism for the Optimal Cooling of Oil-Lubricated Rolling Element Bearings and Planetary Gear Systems." In ASME 2011 International Mechanical Engineering Congress and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/imece2011-64614.

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A major detriment to reliable and sustainable operation of rotational equipment has been extensively linked to high thermal loads from frictional dissipation. Frictional dissipation in critical tribological components such as bearings and gears results in lubricant degradation and subsequent subpar thermal performance. In this study, a novel in situ lubricant cooling system is used to provide a continuous cooling of these critical tribo-components. Experiments were conducted using rolling element bearing (REB) and planetary gear system (PGS) sets. The stationary outer race of a REB was used to accommodate a cooling coil in a heat exchange-like arrangement. Similarly, the stationary outer ring of the PGS housed a cooling coil in another heat exchanger-like arrangement. Use of the heat exchanger arrangements assured continuous in situ cooling to remove the heat generated in the tribological REB and PGS. Water was used as the coolant while Amsoil 75W-90 Severe Gear® oil was the lubricant used. Highly conductive copper coils surrounded the REB or PGS and the coolant was circulated through the coils to remove the heat from the outer bearing race and ring gear. The hot lubricant rejects heat by convection into the outer race thereby limiting lubricant degradation. The incidence of wear and premature failure are also minimized. So far results from this experimental study show that heat generation is significantly minimized in bearings and gears when cooled in situ. This preliminary study has offered important insight for more rigorous follow-on studies.
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Yu, Hao, Xingliang Zhang, Wei Zhang, and Guofeng Hao. "The Airflow Analysis for CAP1400 Control Rod Drive Mechanisms Cooling System." In 2017 25th International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/icone25-66192.

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The CAP1400 nuclear power plant (NPP) reactor integrated head package (IHP) refers to the assembly of all of the equipment and structures that are either mounted to the reactor closure head or provide services to the reactor head assembly. One of the main functions of the IHP in the reactor is to provide cooling for the control rod drive mechanism (CRDM) magnetic coils. The IHP cooling system is realized by axial fans connected to the vent tubes of the CRDM cooling shroud. Under normal operating conditions, two of four fans are required to be in operation. The IHP cooling system shall meet the requirements of “keeping the coil temperature within the magnetic coil component below 200°C”. This requirement is achieved by ensuring that the average flow velocity around the CRDM coil assembly is above 15 m/s and that the minimum flow velocity at any location on the outer surface of the coil assembly is not less than 9 m/s. The main purpose of this paper is to study the flow characteristics of the IHP cooling system under various operating conditions. The CFD method is used to obtain the flow field and temperature field in the IHP and to support the rationality of IHP design.
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Tun, Maung Naing Naing, and Nilufer Egrican. "FRTCOILS: A General Purpose Simulation Software for Design and Prediction of Thermal and Hydraulic Performance of Finned-Tube Compact Heat Exchangers." In ASME 2007 International Mechanical Engineering Congress and Exposition. ASMEDC, 2007. http://dx.doi.org/10.1115/imece2007-41409.

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This paper presents computer software developed for rating and optimum selection of finned circular tubes compact heat exchangers with various coil geometries. The software is developed to use as a computing tool for commercial and R&D purposes in FRITERM A.S, an original equipment manufacturer (OEM) of finned tube heat exchangers. Finned-tube heat exchangers are highly utilized in refrigeration and process industries and heat transfer and pressure drop calculations are very important to manufactures and design engineers. For this purpose, a simulation and design software to predict the performance of finned-tube heat exchangers is presented. In finned-tube coils fin side fluid is air and tube side fluid can be water, oil, glycol water solution mixture and refrigerants. The analysis and rating of coils at dry and wet operating conditions are presented. Design and the most suitable selections of coils at the given parameters and design constraints from many different coil geometries are also performed in the software. User-friendly object-oriented programming C# is applied in developing the software. The software is developed in modular basic. Six modules are developed: Heating Coils, Cooling Coils, Condenser Coils, Steam Coils, Heat Recovery Coils and Evaporator (DX) Coils. REFPROP is also integrated in the software and all fluids’ thermal and transport properties are obtained from REFPROP. Heat transfer and pressure drop correlations available from literature are evaluated with recommendations. Simulated results are verified against experimental results.
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Zamzam, Montaser M., and Abdalla M. Al-Amiri. "A Novel Free-Cooling Scheme for Combustion Turbine Inlet Air Cooling." In ASME Turbo Expo 2007: Power for Land, Sea, and Air. ASMEDC, 2007. http://dx.doi.org/10.1115/gt2007-27621.

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Free-cooling is a well-known concept in the HVAC industry in which the cold water produced by cooling tower is used directly to satisfy the requirement of the cooling load without assistance by the chiller, this concept, however, is not reported in the turbine inlet air cooling applications. Free-cooling works well as long as the ambient wet bulb temperature WBT is sufficiently low to produce cold water at the required temperature but once WBT reaches its threshold value hence free-cooling mode is ceased and the chiller kicks off working under its normal mode of operation i.e. free-cooling is either enabled or disabled. The proposed system in this paper provides in addition to the above modes of operation a novel mode that utilizes the cooling tower as primary source of cooling simultaneously with the chiller which serves as a secondary source at elevated WBT. This new feature significantly reduces the yearly operating hours of the chiller and possibly its size depending on the desired inlet air temperature, actual weather conditions and design WBT. Chiller size can vary between 0-100 percent as compared to a similar classical chiller system with significant reduction in the operating hours. The proposed system basically consists of chiller, cooling tower, cooling coils, interconnecting piping and controls. The arrangement of the system equipments changes with the operation modes in two configurations; dual water circulation loops and single water circulation loop. In the dual loops configurations the system has two separate loops such that the evaporator and the cooling coils are tied in one loop while the cooling tower and condenser in the other loop whereas in the single loop configuration all equipments are connected in series in one water circulation loop. This paper presents the major equipments and characteristics of the novel chiller scheme. In addition, the study outlines the potential reduction in the chiller load, size and operating hours under a generalized weather envelope. The paper in general portrays the feasibility of using the proposed cooling scheme for turbine inlet air cooling.
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Liu, Li, and Xiangdong Wang. "Robust controller design for regulating outlet air temperature of cooling coils." In 2016 Chinese Control and Decision Conference (CCDC). IEEE, 2016. http://dx.doi.org/10.1109/ccdc.2016.7531049.

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Smith, Elliot, Fabio Freschi, Maurizio Repetto, and Stuart Crozier. "Synthesis of the cooling pathways optimal layout for MRI gradient coils." In 2016 IEEE Conference on Electromagnetic Field Computation (CEFC). IEEE, 2016. http://dx.doi.org/10.1109/cefc.2016.7816260.

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Reports on the topic "Cooling of coils"

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Shirey, III, Don B. TEST PLAN FOR MONITORING COOLING COILS IN A LABORATORY SETTING. Office of Scientific and Technical Information (OSTI), April 2002. http://dx.doi.org/10.2172/794172.

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Wiersma, B. J. Measurement of the ductile to brittle transition temperature for waste tank cooling coils. Office of Scientific and Technical Information (OSTI), September 1992. http://dx.doi.org/10.2172/10138772.

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Mickalonis, J. I. Evaluation of Cargo Leak Seal Product for use in Tank 30 Cooling Coils. Office of Scientific and Technical Information (OSTI), June 2001. http://dx.doi.org/10.2172/781736.

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Wiersma, B. J. Measurement of the ductile to brittle transition temperature for waste tank cooling coils. Office of Scientific and Technical Information (OSTI), September 1992. http://dx.doi.org/10.2172/6893714.

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Hansen, E., and A. Alex Cozzi. CLOSURE OF HLW TANKS PHASE 2 FULL SCALE COOLING COILS GROUT FILL DEMONSTATIONS. Office of Scientific and Technical Information (OSTI), June 2008. http://dx.doi.org/10.2172/933166.

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Dworjanyn, L. O. Waste Tank cooling coil leakage calculations. Office of Scientific and Technical Information (OSTI), December 1991. http://dx.doi.org/10.2172/10106343.

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Dworjanyn, L. O. Waste Tank cooling coil leakage calculations. Office of Scientific and Technical Information (OSTI), December 1991. http://dx.doi.org/10.2172/6745393.

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Hsu, T. C. Replacement inhibitors for tank farm cooling coil systems. Office of Scientific and Technical Information (OSTI), March 1995. http://dx.doi.org/10.2172/106444.

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Harbour, J., V. Vickie Williams, and E. Erich Hansen. CLOSURE OF HLW TANKS FORMULATION FOR A COOLING COIL GROUT. Office of Scientific and Technical Information (OSTI), May 2008. http://dx.doi.org/10.2172/934522.

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Johnson, K. I., O. D. Mullen, M. R. Powell, D. S. Daly, and D. W. Engel. Development and testing of the cooling coil cleaning end effector. Office of Scientific and Technical Information (OSTI), September 1997. http://dx.doi.org/10.2172/650177.

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