Academic literature on the topic 'Heat exchangers – Design and construction – Testing'
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Journal articles on the topic "Heat exchangers – Design and construction – Testing"
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Rix, D. H. "The Design and Initial Testing of a Prototype Stirling Cycle Heat Pump." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 202, no. 6 (November 1988): 431–38. http://dx.doi.org/10.1243/pime_proc_1988_202_145_02.
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This paper covers the first step of an investigation into the potential of the Stirling cycle heat pump. The design and construction of a prototype is described. Particular reference is made to the use of a previously developed theoretical model in the design optimization of the heat exchangers and regenerator. The resultant machine has been tested over a wide range of heat delivery temperatures and temperature lifts, using a pair of hot oil circuits to exchange heat with. Though these initial tests have revealed two design flaws, which have seriously reduced the values attained for the coefficient of performance, they have demonstrated the ability of the Stirling cycle heat pump to deliver heat at higher temperatures and over larger temperature lifts than established types of heat pump.
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Podany, Pavel, Martina Koukolikova, and Eva Chvostova. "Aging behaviour of particular stainless-steels and NiFeCr alloy suitable for heat exchangers." MATEC Web of Conferences 249 (2018): 01007. http://dx.doi.org/10.1051/matecconf/201824901007.
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This paper deals with the testing of three materials for special heat exchanger for short-time application. Mechanical and microstructural properties after aging at 650 and 850 °C were tested and analysed. The results will serve as an input data for the design and construction of plate heat exchanger.
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Wipplinger, KPM, TM Harms, and AB Taylor. "Stainless steel finned tube heat exchanger design for waste heat recovery." Journal of Energy in Southern Africa 17, no. 2 (May 1, 2006): 47–56. http://dx.doi.org/10.17159/2413-3051/2006/v17i2a3281.
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Around the world the implementation of heat recovery systems play an increasingly important role in the engineering industry. Recovered energy is utilised in production plants (especially in the food industry) and saves companies millions in expenses per year. Waste heat recovery associated with hydrocarbon combustion in the transport industry is identified as a significantly under-utilised energy resource. The aim of this project was to investigate the recovery of waste heat in a small scale system for the purpose of electrical conversion in order to serve as a secondary energy source. A theoretical analysis concerning the design and construction of the system, utilising researched theory and a control-volume-based simulation program of the recovery system, is presented. It was found that heat exchangers for the required duty are not readily available in South Africa. A high pressure, cross flow, stainless steel finned tube heat exchanger with a water side pressure rating of 2 MPa was therefore designed and constructed. By using the exhaust gases of a continuous combustion unit as an energy source and water as the working fluid, efficiencies of up to 74% in direct steam generation testing were obtained.
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Alm, B., R. Knitter, and J. Haußelt. "Development of a Ceramic Micro Heat Exchanger - Design, Construction, and Testing." Chemical Engineering & Technology 28, no. 12 (December 2005): 1554–60. http://dx.doi.org/10.1002/ceat.200500253.
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Lukitobudi, A. R., A. Akbarzadeh, P. W. Johnson, and P. Hendy. "Design, construction and testing of a thermosyphon heat exchanger for medium temperature heat recovery in bakeries." Heat Recovery Systems and CHP 15, no. 5 (July 1995): 481–91. http://dx.doi.org/10.1016/0890-4332(95)90057-8.
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Kincheloe, Mason C., John P. Franke, Christian K. Bach, and Craig R. Bradshaw. "Design of a psychrometric coil testing facility for commercial size heat exchanger coils." International Journal of Refrigeration 121 (January 2021): 143–51. http://dx.doi.org/10.1016/j.ijrefrig.2020.10.027.
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Xie, Xiao Hong, Yong Li, Yu Lai, and Yang Cao. "Testing Technology Research on Actual Effect by Construction Piled Pipes in Buried Pipe System of Ground Source Heat Pump." Advanced Materials Research 430-432 (January 2012): 1957–62. http://dx.doi.org/10.4028/www.scientific.net/amr.430-432.1957.
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The technology of Ground-Source Heat Pump (GSHP) is hot in building energy efficiency and HVAC field, and is largely used in engineering practices. We studied the construction of buried-pipe system of GSHP. In this article, purposes the experiment of thermal response by constructing piled pipes are analyzed in the buried-pipe system of GSHP and principles of testing system for buried pipes of GSHP are introduced, also the soil heat response experiments to achieve pre-assessment techniques of design. Through the above testing means, we believe that whether the buried-pipe system of GSHP finally tested meets the designed heat exchange requirement is determined, which is especially significant to estimate and verify whether the whole GSHP system meets requirements of heat capacity.
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Sapińska-Śliwa, Aneta, Tomasz Sliwa, Kazimierz Twardowski, Krzysztof Szymski, Andrzej Gonet, and Paweł Żuk. "Method of Averaging the Effective Thermal Conductivity Based on Thermal Response Tests of Borehole Heat Exchangers." Energies 13, no. 14 (July 20, 2020): 3737. http://dx.doi.org/10.3390/en13143737.
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This work concerns borehole heat exchangers and their testing using apparatus for thermal response tests. In the theoretical part of the article, an equation was derived from the known equation of heat flow, on which the interpretation of the thermal response test was based. The practical part presents the results of several measurements taken in the AGH Laboratory of Geoenergetics. They were aimed at examining the potential heat exchange capacity between the heat carrier and rock mass. Measurement results in the form of graphs are shown in relation to the examined, briefly described wells. Result analysis made it possible to draw conclusions regarding the interpretation of the thermal response test. The method of averaging the measurement results was subjected to further study. The measuring apparatus recorded data at a frequency of one second, however such accuracy was too large to be analyzed efficiently. Therefore, an average of every 1 min, every 10 min, and every 60 min was proposed. The conclusions stemming from the differences in the values of effective thermal conductivity in the borehole heat exchanger, resulting from different data averaging, were described. In the case of three borehole heat exchangers, ground properties were identical. The effective thermal conductivity λeff was shown to depend on various borehole heat exchanger (BHE) designs, heat carrier flow geometry, and grout parameters. It is important to consider the position of the pipes relative to each other. As shown in the charts, the best (the highest) effective thermal conductivity λeff occurred in BHE-1 with a coaxial construction. At the same time, this value was closest to the theoretical value of thermal conductivity of rocks λ, determined on the basis of literature. The standard deviation and the coefficient of variation confirmed that the effective thermal conductivity λeff, calculated for different time intervals, showed little variation in value. The values of effective thermal conductivity λeff for each time interval for the same borehole exchanger were similar in value. The lowest values of effective thermal conductivity λeff most often appeared for analysis with averaging every 60 min, and the highest—for analysis with averaging every 1 min. For safety reasons, when designing (number of BHEs), safer values should be taken for analysis, i.e., lower, averaging every 60 min.
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Han, Ruixiong, Zhengping Zou, Rui Ge, Zhengze Chang, Jianqin Zhang, Miaofu Xu, Rui Ye, et al. "Design optimization, construction and testing of 2 K Joule-Thomson heat exchanger for a superfluid helium cryogenic system." Applied Thermal Engineering 180 (November 2020): 115774. http://dx.doi.org/10.1016/j.applthermaleng.2020.115774.
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Ahmed, Muna, Ali Al-Salihi, and Hazim Hussain. "Testing the performance of a solar energy cooling system in Baghdad city." Przegląd Naukowy Inżynieria i Kształtowanie Środowiska 30, no. 2 (July 5, 2021): 283–92. http://dx.doi.org/10.22630/pniks.2021.30.2.24.
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Renewable energy resources have become a promissory alternative to overcome the problems related to atmospheric pollution and limited sources of fossil fuel energy. The technologies in the field of renewable energy are used also to improve the ventilation and cooling in buildings by using the solar chimney and heat exchanger. This study addresses the design, construction and testing of a cooling system by using the above two techniques. The aim was to study the effects of weather conditions on the efficiency of this system which was installed in Baghdad for April and May 2020. The common weather in these months is hot in Baghdad. The test room of the design which has a size of 1 m3 was situated to face the geographical south. The test room is thermally insulated and connected to a solar chimney which generates a convection current to draw the air out of the room through a heat exchanger. The heat exchanger was submerged in a water tank of 2 m length, 1 m width and 1 m height. It was also covered with a layer of soil mixture with a thickness of 10 cm. The experiment simulates the natural conditions of a shallow water surface, connected to the room from the other side. The study results revealed that the air temperature inside the test room was lower than that of the ambient air outside. Pearson correlation coefficient showed that there was a strong direct relationship between solar radiation, temperature and wind speed from one side and the cooling efficiency from the other side. Also, there was a negative correlation between relative humidity and cooling efficiency.
Dissertations / Theses on the topic "Heat exchangers – Design and construction – Testing"
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Taylor, Creed. "Measurement of Finned-Tube Heat Exchanger Performance." Thesis, Georgia Institute of Technology, 2004. http://hdl.handle.net/1853/4890.
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Finned-tube heat exchangers are predominantly used in space conditioning systems, as well as other applications requiring heat exchange between two fluids. One important widespread use is in residential air conditioning systems. These residential cooling systems influence the peak demand on the U.S. national electrical system, which occurs on the hot summer afternoons, and thereby sets the requirement for the expensive infrastructure requirement of the nations power plant and electrical distribution system. In addition to this peak demand, these residential air conditioners are major energy users that dominate residential electrical costs and environmental impact.
The design of finned-tube heat exchangers requires the selection of over a dozen design parameters by the designer. The refrigerant side flow and heat transfer characteristics inside the tubes have been thoroughly studied. However, the air side flow around the tube bundle and through the fin gaps is much more complex and depends on over a dozen design parameters. Therefore, experimental measurement of the air side performance is needed.
First this study built an experimental system and developed methodology for measuring the air side heat transfer and pressure drop characteristics of fin tube heat exchangers. This capability was then used to continue the goal of expanding and clarifying the present knowledge and understanding of air side performance to enable the air conditioner system designer in verifying an optimum fin tube condenser design.
In this study eight fin tube heat exchangers were tested over an air flow face velocity range of 5 ?? ft/s (675-1600cfm). The raw data were reduced to the desired heat transfer and friction data, j and f factors. This reduced heat transfer and friction data was plotted versus Reynolds number and compared. The effect of fin spacing, the number of rows and fin enhancement were all investigated. The heat transfer and friction data were also plotted and compared with various correlations available from open literature. The overall accuracy of each correlation to predict experimental data was calculated. Correlations by C.C. Wang (1998b, 1999) showed the best agreement with the data. Wangs correlations (1998b, 1999) were modified to fit the current studys data.
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Albrecht, Daniel David. "DESIGN AND CONSTRUCTION OF HEAT EXCHANGER TEST STAND WITH INITIAL TEST RESULTS." OpenSIUC, 2009. https://opensiuc.lib.siu.edu/theses/109.
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Continual development of internal combustion engines requires greater performance from liquid coolants and heat exchangers to maintain optimal temperature. For the purpose of experimental testing of traditional, compact, and microchannel heat exchangers, a test facility has been designed, constructed, and utilized. The facility includes equipment and instrumentation necessary to create operating conditions and record data primarily for testing plate-fin brazed aluminum heat exchanger where heat is being transferred from liquid to air. Other arrangements of heat exchangers could be tested as well with some modifications. Initial tests were performed at several specified operating conditions for three liquids: water, a traditional glycol based Extended Life Coolant (ELC), and a new Glycol Free Coolant (GFC) in an attempt to characterize their heat transfer ability. Results of the tests found that the product of overall heat transfer coefficient and heat exchanger area (UA) was very similar for GFC and water, and it was less for ELC by a narrow margin of 1.3% difference on average. Uncertainty due to instrumentation accuracy was calculated to be 1.8% on average making the results overall UA unverifiable. Measured pressure drop across the heat exchanger which is proportional to required pumping power was found to be 13.5% higher for GFC than ELC at nominal conditions. The GFC offers similar heat transfer performance and marginally increased pumping power requirements compared to the traditional ELC. Due to similar heat transfer performance and the small effect of pressure drop, GFC would be good alternative to ELC due to its less toxic composition.
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Kamarad, Anthony. "Design and construction of a mobile equipment for thermal response test in borehole heat exchangers." Thesis, KTH, Tillämpad termodynamik och kylteknik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-99558.
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In 2010, the Ground Source Heat Pumps (GSHPs) market in the European Union went up over one million (1 014 436 units at the end of 2010 according to EUROBSERV’ER 2011). In 2011, it was estimated around 1.25 million according to Bayer et al. (2012). With more than 378 000 units installed in 2010, according to the Swedish heat pump association (SVEP), the Swedish GSHPs market was the first in the EU. As for the French GSHPs market, it was estimated to 151 938 units in service in 2010, which propelled France at the third rank in the EU. However, despite a relatively important number of GSHPs installed in the whole EU, since 2008 GSHP sales have shrank. Even Sweden which has been the most competitive country sees its GSHP sales decline in the first quarter of 2012 (EUROBSERV’ER 2011). This report is the achievement of my Master of Science Thesis project. It also represents the end of my studies at INSA Lyon in France and concludes my degree in Energetic and Environment Engineering. This report deals with the improvement of a heat injection apparatus which is available at KTH (Royal Institute of Technology). This equipment is better known as Thermal Response Test (TRT) apparatus. This kind of equipment improves Borehole Heat Exchangers (BHE) design in terms of size and cost benefits. This technology is generally used to design GSHP installations in both domestic and industrial purposes. It allows to determine really important thermal BHE parameters: the thermal conductivity of the ground and the borehole thermal resistance. The report covers a theoretical description of TRT experiments, the reasons and objectives of such a project, the apparatus design and its construction. The last part is dedicated to a first experimental laboratory results and some problems met during the project course.
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Begum, Latifa. "Natural and mixed convection in a horizontal cylindrical annulus with and without fins on inner cylinder." Thesis, McGill University, 2007. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=112556.
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Determination of the heat transfer coefficients for natural and mixed convection in horizontal annuli is important for designing double pipe heat exchangers and for energy storage systems. In part one and two of this study, the 2D numerical solution of the laminar natural convection of water in six internally finned horizontal annuli has been obtained. The fins are attached to the external surface of the inner cylinder. Only the symmetrical half of the horizontal annulus with three equally spaced longitudinal divergent solid and porous fins are considered. The parameters of the problem are Rayleigh number, fin height, permeability and porosity of the porous fin, etc. The above parameters are suitably varied to ascertain their effects on fluid flow and heat transfer. The results show that traditional solid fins provide much higher heat transfer rates compared to the porous fins. Part three of this work deals with mixed convective heat transfer (laminar natural and forced convections) of water in a vented annulus. The forced flow conditions are imposed by providing an inlet at the top and an outlet at the bottom. For various parameters of the problem, the average and local Nusselt numbers along the inner cylinder are calculated for water for both aiding and opposing flows. The fourth part of this study deals with numerical modeling of natural convection of nanofluids in a horizontal cylindrical annulus. Simulations are carried out for Cu-water nanofluids. The results, in general, show that nanoparticles systematically decrease the natural convective heat transfer coefficient on the inner cylinder. Practical and useful correlations are provided for calculating average heat transfer rates from the inner cylinder in the form of average equivalent thermal conductivity and average Nusselt number for all of the four cases discussed above. These correlations are new and will be helpful in designing heat exchangers.
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Chen, Minghui. "DESIGN, FABRICATION, TESTING, AND MODELING OF A HIGH-TEMPERATURE PRINTED CIRCUIT HEAT EXCHANGER." The Ohio State University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=osu1431072434.
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Mylavarapu, Sai Kiran. "Design, Fabrication, Performance Testing, and Modeling of Diffusion Bonded Compact Heat Exchangers in a High-Temperature Helium Test Facility." The Ohio State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=osu1321996306.
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Telesz, Mark P. "Design and Testing of a Thermoacoustic Power Converter." Thesis, Georgia Institute of Technology, 2006. http://hdl.handle.net/1853/11495.
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Thermoacoustic engines convert heat into acoustic pressure waves with no moving parts; this inherently results in high reliability, low maintenance and low manufacturing costs. Significant increases in the performance of these devices have enabled rivalry with more mature energy conversion methods in both efficiency and power output. This optimal production of acoustic power can be ultimately used to achieve cryogenic temperatures in thermoacoustic refrigerators, or can be interfaced with reciprocating electro-acoustic power transducers to generate electricity.
This thesis describes the design, fabrication and testing of a Thermoacoustic Power Converter. The system interfaces a thermoacoustic-Stirling heat engine with a pair of linear alternators to produce 100 watts of electricity from a heat input. It operates with helium at 450 psig internal pressure and a hot side temperature of 1200F. Through thermoacoustic phenomena, these conditions sustain a powerful pressure wave at a system specific 100 Hz. This pressure wave is used to drive the two opposed linear alternators in equal and opposite directions to produce a single phase AC electrical output at that same system frequency. The opposing motion of the two alternators enables a vibration-balanced system.
The engine has created 110 watts of acoustic power and the complete Thermoacoustic Power Converter system has produced 70 watts of AC electricity. Compensating for some heat leaks, the converter reaches 26.3% heat to acoustic power efficiency and 16.8% heat to electric efficiency when those maximum values are achieved. This conversion of heat to acoustic power is 40% of the Carnot thermodynamic efficiency limit.
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Sizani, Xolile L. "Evaluate the use of elliptical finned tubes in heat exchanger design and performance : 'the structural characteristics of finned tubes'." Thesis, Stellenbosch : Stellenbosch University, 2000. http://hdl.handle.net/10019.1/51748.
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Thesis (MEng)--University of Stellenbosch, 2000.ENGLISH ABSTRACT: This report describes the Experimental and Numerical Investigations conducted, during the determination of the structural mechanics of elliptical tubes, viz. the F- and the Atubes. This report is requested in an endeavour to assist Sasol, who is currently busy developing and updating specifications on Air Cooled Heat Exchangers. The objectives of this report therefore are to : (1) determine the strength and the effectiveness of the tube-to-tube-sheet joints. (2) determine the allowable pressure limits on the tubes and (3) investigate the effects of thermal load and vibration on the tube bundle. A series of experiments were conducted to meet these objectives. From a Shear Load experiment it was found that the maximum allowable axial load on the Fand the A-tube is 14.55 kN and 20. 86 kN respectively. Fin Plates were found to have little effect on the bending strength of the tube, w~ilst they have significant effect on the resistance to volumetric expansion of the tube. In fact the more fins per unit length the greater the resistance to volumetric expansion of the tube. These conclusions were drawn from Bending and Pressure Load experiments respectively and supported by FEM analysis of the tube using NASTRAN. When the design pressure limit given by the manufacturer (GEA Air Cooled Systems), were tested using FEM analysis, it was found that they cause no significant deformation and failure of the tubes. Thermal stresses on the tube bundle greatly affect the first tube in the first row (row closest to the flanges) of the tube bundle and it is recommended that provision for thermal expansion be made to reduce these stresses. To reduce vibrations induced by the fan, it is recommended that the natural frequency of the tube bundle must not equal the number of blades (N) times the angular frequency (co) of the fan, or multiples thereof, of each mode of vibration.
AFRIKAANSE OPSOMMING: Hierdie tesis beskrywe die Numeriese en Eksperimentele ondersoeke na die sterkte van elliptiese verkoelingsbuise, naamlik die F- en A- tipes. Hierdie werk sal Sasol, wat huidiglik besig is met die opgradering, van spesifikasies vir lugverkoelde hitteuitruilers van nut wees. Die doelwitte van hierdie tesis is om: (1) die sterkte en effektiwiteit van die buis laste was die buis and die buisplaat verdind, te ondersoek, (2) die toelaatbare druklimiete, sowel as (3) die effek wat hitte en vibrasie op 'n buisbundel het, te ondersoek. 'n Reeks eksperimente is uitgevoer om hierdie doelwitte te bevredig. 'n Skuifbelastingseksperiment het aangedui dat die toelaatbare krag wat op 'n F- en A-buis respektiewelik aangewend kan word 14.55 kN en 20.86 kN is. Die ondersoek het aangetoon dat vinne geen noemenswaardige effek op die buigsterkte van die buise gehad het nie, maar dat dit 'n aansienlike verstywingseffek teen volumetriese verandering as gevolg van interne druk, gehad het. Hierdie gevolgtrekkings is bereik deur die Druk- en Buigtoetse wat numeries bevestig is met die NASTRAN eindige element analise (EEA) pakket. EEA het aangetoon dat die druklimiete voorgeskryf deur die buisvervaardiger (GEA Air Cooled Systems) nie noemenswaardige vervorming van die buise tot gevolg gehad het nie. Termiese belastings het 'n groot invloed op die eerste buise (die rye naaste aan die flense) van 'n buisbundel. Die invoeging van uitsettingslaste word aanbeveel om die spannings hier te verminder. Om vibrasie van die buisbundel te verhoed word aanbeveel dat die resonansfrekwensie van die buisbundel nie gelyk is aan die aantal lemme (N) vermenigvuldig met die rotasie frekwensie (co)van die waaier vir elke vibrasiemode.
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Benafan, Othmane. "Design, Fabrication and Testing of a Low Temperature Heat Pipe Thermal Switch with Shape Memory Helical Actuators." Master's thesis, University of Central Florida, 2009. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/6222.
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This work reports on the design, fabrication and testing of a thermal switch wherein the open and closed states are actuated by shape memory alloy elements while heat is transferred by a heat-pipe. The motivation for such a switch comes from NASA's need for thermal management in advanced spaceport applications associated with future lunar and Mars missions. For example, as the temperature can approximately vary between 40 K to 400 K during lunar day/night cycles, such a switch can reject heat from a cryogen tank in to space during the night cycle while providing thermal isolation during the day cycle. By utilizing shape memory alloy elements in the thermal switch, the need for complicated sensors and active control systems are eliminated while offering superior thermal isolation in the open state. Nickel-Titanium-Iron (Ni-Ti-Fe) shape memory springs are used as the sensing and actuating elements. Iron (Fe) lowers the phase transformation temperatures to cryogenic regimes of operation while introducing an intermediate, low hysteretic, trigonal R-phase in addition to the usual cubic and monoclinic phases typically observed in binary NiTi. The R-phase to cubic phase transformation is used in this application. The methodology of shape memory spring design and fabrication from wire including shape setting is described. Heat transfer is accomplished via heat acquisition, transport and rejection in a variable length heat pipe with pentane and R-134a as working fluids. The approach used to design the shape memory elements, quantify the heat transfer at both ends of the heat pipe and the pressures and stresses associated with the actuation are outlined. Testing of the switch is accomplished in a vacuum bell jar with instrumentation feedthroughs using valves to control the flow of liquid nitrogen and heaters to simulate the temperature changes. Various performance parameters are measured and eported under both transient and steady-state conditions. Funding from NASA Kennedy Space Center for this work is gratefully acknowledged.M.S.
Masters
Mechanical, Materials and Aerospace Engineering
Engineering and Computer Science
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Pietersen, Richard Gordon. "Thermoelectric cooling for microwave transmitters located at remote sites." Thesis, Cape Technikon, 1992. http://hdl.handle.net/20.500.11838/2158.
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Thesis (MDiploma (Mechanical Engineering))--Cape Technikon, 1992.An investigation into the use of thermoelectric cooling energised by photovoltaic (PV) panels for removing sensible heat from electronic telecommunications equipment. The thermoelectric cooler consists of a solid-state heat pump which operates on the principle of the Peltier effect. The thermoelectric device transfers heat through a cold sink to ambient outside air via a hot sink. A major prerequisite was that the system should be selfsufficient in terms of power because the sites for the microwave transmitters are often remote. Solar power was the only alternative source of energy and the cooler was designed to accept direct current from PV panels which are usually used to power transmitters on distant locations. The cooling device had to be reliable, virtually maintenance-free and simple to repair.
Books on the topic "Heat exchangers – Design and construction – Testing"
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Joint Power Generation Conference (1989 Dallas, Tex.). Improved performance of heat exchanger systems through design, condition management, and auxiliary interaction: Presented at the 1989 Joint Power Generation Conference, Dallas, Texas, October 22-26, 1989. New York, N.Y: American Society of Mechanical Engineers, 1989.
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Saunders, E. A. D. Heat exchangers: Selection, design & construction. Harlow, Essex, England: Longman Scientific & Technical, 1988.
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Shah, R. K. Fundamentals of heat exchanger design. Hoboken, NJ: John Wiley & Sons, 2003.
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P, Sekulić Dušan, ed. Fundamentals of heat exchanger design. Hoboken, N.J: John Wiley & Sons, 2003.
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Practical thermal design of air-cooled heat exchangers. New York: Begell House, 2007.
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Practical thermodynamic tools for heat exchanger design engineers. New York: Wiley, 1987.
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Dzi︠u︡benko, B. V. Modeling and design of twisted tube heat exchangers. New York: Begell House Publishers, 2000.
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H, Krips, ed. Heat exchangers: A practical approach to mechanical construction, design, and calculations. New York: Begell House, 1998.
Find full textBook chapters on the topic "Heat exchangers – Design and construction – Testing"
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"Manufacturing and Qualification Testing of Compact Heat Exchangers." In Compact Heat Exchangers - Analysis, Design and Optimization using FEM and CFD Approach, 461–96. Chichester, UK: John Wiley & Sons, Ltd, 2018. http://dx.doi.org/10.1002/9781119424369.ch7.
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Avery, William H., and Chih Wu. "OTEC Closed-Cycle Engineering Status." In Renewable Energy from the Ocean. Oxford University Press, 1994. http://dx.doi.org/10.1093/oso/9780195071993.003.0013.
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Engineering analyses and component design studies during the period 1974–977 indicated the feasibility of constructing and operating floating OTEC plants and plantships in a variety of configurations ranging in power from 40 to 500 MWe. In August 1979, an at-sea test of a complete OTEC power system (Mini-OTEC) demonstrated performance in good accord with engineering predictions and established a firm basis for scale-up to larger sizes (Owens and Trimble, 1980). Heat exchanger operation at a level equivalent to 1-MWe power generation was demonstrated 1 year later in the OTEC-1 program. In 1981, a complete land-based OTEC power plant was constructed and operated under Japanese direction at the island of Nauru on the equator in the mid-Pacific ocean. During the period 1977-1980, a U.S. plan was developed, supported by public laws PL 96-310 and PL 96-320, to demonstrate OTEC feasibility at a 100-MWe level by 1985 and 500 MWe by 1990. Testing was to start with a pilot demonstration at 40 MWe (net). Preliminary design of baseline demonstration plants at this power level for moored operation off Punta Tuna, Puerto Rico, and for grazing operation west of equatorial Brazil with on-board ammonia production was completed in 1980 (George and Richards, 1980). Conceptual designs of larger plants and power systems for demonstration at the baseline level were also completed. In accord with the requirements of the Congressional actions, a Program Opportunity Notice (PON) was issued in September 1980 by DOE that offered cost-sharing support for innovative OTEC systems designs that contractors believed would be commercially viable if government cost sharing were made available during development of demonstration vessels. The PON asked for proposals for a development program to design, construct, and test a 40-MWe (net) closed-cycle OTEC system, which would be conducted in six phases beginning with conceptual design and continuing to preliminary design, engineering design, construction, deployment and operation, and, finally, transfer of ownership and contractor operation. The schedule was set to be consistent with the goal established by PL- 96-310 of demonstration of 100-MW OTEC operation by 1985. DOE stated its intent to fund five to eight awards for the first phase, with DOE providing $900,000 as its share of each contract awarded (Dugger et al., 1983).
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Floudas, Christodoulos A. "Heat Exchanger Network Synthesis." In Nonlinear and Mixed-Integer Optimization. Oxford University Press, 1995. http://dx.doi.org/10.1093/oso/9780195100563.003.0014.
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This chapter focuses on heat exchanger network synthesis approaches based on optimization methods. Sections 8.1 and 8.2 provide the motivation and problem definition of the HEN synthesis problem. Section 8.3 discusses the targets of minimum utility cost and minimum number of matches. Section 8.4 presents synthesis approaches based on decomposition, while section 8.5 discusses simultaneous approaches. Heat exchanger network HEN synthesis is one of the most studied synthesis/design problems in chemical engineering. This is attributed to the importance of determining energy costs and improving the energy recovery in chemical processes. The comprehensive review of Gundersen and Naess (1988) cited over 200 publications while a substantial annual volume of studies has been performed in the last few years. The HEN synthesis problem, in addition to its great economic importance features a number of key difficulties that are associated with handling: (i) The potentially explosive combinatorial problem for identifying the best pairs of hot and cold streams (i.e., matches) so as to enhance energy recovery; (ii) Forbidden, required, and restricted matches; (iii) The optimal selection of the HEN structure; (iv) Fixed and variable target temperatures; (v) Temperature dependent physical and transport properties; (vi) Different types of streams (e.g., liquid, vapor, and liquid-vapor); and (vii) Different types of heat exchangers (e.g., counter-current, noncounter-current, multistream), mixed materials of construction, and different pressure ratings. It is interesting to note that the extensive research efforts during the last three decades toward addressing these aforementioned difficulties/issues exhibit variations in their objectives and types of approaches which are apparently cyclical. The first approaches during the 1960s and early 1970s treated the HEN synthesis problem as a single task (i.e., no decomposition into sub-tasks). The work of Hwa (1965) who proposed a simplified superstructure which he denoted as composite configuration that was subsequently optimized via separable programming was a key contribution in the early studies, as well as the tree searching algorithms of Pho and Lapidus (1973). Limitations on the theoretical and algorithmic aspects of optimization techniques were, however, the bottleneck in expanding the applicability of the mathematical approaches at that time.
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Kharchenko, Valeriy, Vladimir Panchenko, Pavel V. Tikhonov, and Pandian Vasant. "Cogenerative PV Thermal Modules of Different Design for Autonomous Heat and Electricity Supply." In Handbook of Research on Renewable Energy and Electric Resources for Sustainable Rural Development, 86–119. IGI Global, 2018. http://dx.doi.org/10.4018/978-1-5225-3867-7.ch004.
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Solar energy is used for electricity production by means of photovoltaic modules and for heat supply by means of solar water-heating collectors. In recent years, combined cogeneration photovoltaic thermal modules which work out at the same time both electricity and thermal energy began to be applied actively. The chapter includes consideration of the main types of cogenerative photovoltaic thermal modules of different design such as planar liquid devices as well as devices with concentrator of solar radiation. The advantages and disadvantages of each type are presented. Main directions for improving the efficiency of converting solar energy into thermal and electricity are offered. The description of the offered construction of the module, and also results of theoretical and pilot studies of the module is provided in full-scale conditions. Installation for such tests is described as well. Testing photovoltaic thermal modules with planar and concentrator design are presented in the chapter.
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Butuzov, Vitaliy A., Vitaly V. Butuzov, Elena Bryantceva, and Ilya Gnatyuk. "Experience and Prospects of Using Solar Energy for Heating Supply in Russia." In Handbook of Research on Renewable Energy and Electric Resources for Sustainable Rural Development, 26–60. IGI Global, 2018. http://dx.doi.org/10.4018/978-1-5225-3867-7.ch002.
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Approaches to the organization of solar heat supply in Russia have a number of differences in comparison with the global experience, in particular, in the field of processing solar radiation data, designing solar collector designs, design techniques, construction and testing of solar heating systems, and the practice of creating and using solar plants. Examples of implementation of projects for creating heat supply systems in different regions of Russia are presented, from the southern (Krasnodar Territory) to the northern (Yakutia). A methodology for converting data for direct and diffuse solar radiation of NASA by taking into account the results of measurements of weather stations, which provides the possibility of their practical use, is presented. Data on the number, types, annual volumes of supplies, and names of producers of solar collectors in Russia are presented. Methodical approaches to the development of solar collectors structures based on the results of comparing the energy consumption for their production with the amount of energy produced by them during their lifetime are considered. A comparative analysis of solar design methodology in Russia and in Europe has been performed. Prospects for the construction of solar heat installations in Russia up to 2030 are considered.
Conference papers on the topic "Heat exchangers – Design and construction – Testing"
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Sullivan, Shaun D., Jason Farias, James Kesseli, and James Nash. "Mechanical Design and Validation Testing for a High-Performance Supercritical Carbon Dioxide Heat Exchanger." In ASME Turbo Expo 2017: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/gt2017-63639.
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Supercritical carbon dioxide (sCO2) Brayton cycles hold great promise as they can achieve high efficiencies — in excess of 50% — even at relatively moderate temperatures of 700–800 K. However, this high performance is contingent upon high-effectiveness recuperating and heat rejection heat exchangers within the cycle. A great deal of work has gone into development of these heat exchangers as they must operate not only at elevated temperatures and very high pressures (20–30 MPa), but they must also be compact, low-cost, and long-life components in order to fully leverage the benefits of the sCO2 power cycle. This paper discusses the mechanical design and qualification for a novel plate-fin compact heat exchanger designed for sCO2 cycle recuperators and waste heat rejection heat exchangers, as well as direct sCO2 solar absorber applications. The architecture may furthermore be extended to other very high pressure heat exchanger applications such as pipeline natural gas and transcritical cooling cycles. The basic heat exchanger construction is described, with attention given to those details which have a direct impact on the durability of the unit. Modeling and analysis of various mechanical failure modes — including burst strength, creep, and fatigue — are discussed. The design and construction of test sections, test rigs, and testing procedures are described, along with the test results that demonstrate that the tested design has an operating life well in excess of the 100,000 cycles/90,000 hour targets. Finally, the application of these findings to a set of design tools for future units is demonstrated.
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Aakre, Shaun R., and Ian W. Jentz. "Welded Attachments and Hydrostatic Pressure Testing Rules for Diffusion Bonded Heat Exchangers." In ASME 2020 Pressure Vessels & Piping Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/pvp2020-21299.
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Abstract The mission of the U.S. Department of Energy (DOE), Office of Nuclear Energy is to advance nuclear power in order to meet the nation’s energy, environmental, and energy security needs. Advanced high temperature reactor systems will require compact heat exchangers (CHX) for the next generation of nuclear reactor plant designs. A necessary step for achieving this objective is to ensure that the ASME Boiler and Pressure Vessel Code, Section III, Division 5 has rules for the construction of CHXs for nuclear service. Construction of Alloy 800H diffusion bonded Printed Circuit Heat Exchangers (PCHEs) involves multiple controlled welding processes. The primary diffusion bonding process creates a uniformly bonded PCHE body featuring a microchannel core. Secondary welding processes are needed to attach headers and nozzles to the PCHE body, forming a complete CHX. The quality of these welding processes is ensured by following the appropriate ASME Section IX weld qualification procedures. Experience in constructing both 316L and 800H PCHEs has given a set of acceptable attachment weld configurations and procedures. Headers were attached to the diffusion bonded block surface using full penetration welds, as required by Class A design. The integrity of these attachment welds was demonstrated through hydrostatic pressure testing.
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Gamio, Carlos, and F. Walter Pinto. "Shell and Tube Heat Exchanger Reliability Study." In ASME 2002 Engineering Technology Conference on Energy. ASMEDC, 2002. http://dx.doi.org/10.1115/etce2002/per-29126.
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In 1997, heat exchanger tube failures accounted for 31% of the unplanned downtime in the Lyondell’s Gulf Coast plants. This resulted in over $12MM of unplanned production interruptions. A multi-disciplinary team studied the tube failure modes and developed a systematic program to improve the heat exchanger reliability. The team issued recommendations in the areas of heat exchanger design, construction, operation, maintenance and inspection. This paper mainly discusses the three critical areas surrounding the reliability of heat exchanger tubes. They are tube testing, strategy on retubing exchangers during turnarounds and design improvements.
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Heydari, Ali, and Saeed Kargar. "Theoretical Modeling and Optimized Design of a Packaged Liquid Chiller." In ASME/JSME 2007 Thermal Engineering Heat Transfer Summer Conference collocated with the ASME 2007 InterPACK Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/ht2007-32839.
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This work attempts to develop a physical simulation model for the purpose of studying the effect of various design parameters on the performance of a packaged liquid chiller. A computer model which simulates the steady-state cyclic performance of a vapor compression chiller is developed for the purpose of performing detailed physical design analysis of actual industrial chillers. The model can be used for optimizing design and for detailed energy efficiency analysis of packaged liquid chillers. The simulation model takes into account presence of all chiller components such as compressor, shell-and-tube condenser and evaporator heat exchangers, thermostatic expansion valve and connection pipes and tubing’s by thermal-hydraulic modeling of heat transfer, fluids flow and thermodynamics processes in the chiller’s components. To verify the validity of the developed model, a 7.5 USRT packaged-liquid chiller is used and a laboratory test stand for brining the chiller to its standard steady-state performance condition is build. Experimental results obtained from testing the chiller in different load and temperature conditions are shown to be in good agreement with those obtained from simulating the performance of the chiller using the developed computer model. To optimize the chiller design, an entropy-minimization-optimization analysis is performed based on the analytical performance model of the chiller. The variation of design parameters in construction of shell-and-tube condenser and evaporator heat exchangers are studied using the developed performance and optimization analysis and simulation model and a best-match condition between the physical design and construction of chiller heat exchangers and its compressor is found to exist. It is expected that manufacturers of chillers and research organizations interested in developing energy-efficient design and analysis of chillers can take advantage of the presented study and its results.
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Carlson, Matt D., and Clifford K. Ho. "A Particle/sCO2 Heat Exchanger Testbed and Reference Cycle Cost Analysis." In ASME 2016 10th International Conference on Energy Sustainability collocated with the ASME 2016 Power Conference 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/es2016-59607.
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The high-temperature particle – supercritical carbon dioxide (sCO2) Brayton power system is a promising option for concentrating solar power (CSP) plants to achieve SunShot metrics for high-temperature operation, efficiency, and cost. This system includes a falling particle receiver to collect solar thermal radiation, a dry-cooled sCO2 Brayton power block to produce electricity, and a particle to sCO2 heat exchanger to couple the previous two. While both falling particle receivers and sCO2 Brayton cycles have been demonstrated previously, a high temperature, high pressure particle/sCO2 heat exchanger has never before been demonstrated. Industry experience with similar heat exchangers is limited to lower pressures, lower temperatures, or alternative fluids such as steam. Sandia is partnering with three experienced heat exchanger manufacturers to develop and down-select several designs for the unit that achieves both high performance and low specific cost to retire risks associated with a solar thermal particle/sCO2 power system. This paper describes plans for the construction of a particle sCO2 heat exchanger testbed at Sandia operating above 700 °C and 20 MPa, with the ability to couple directly with a previously-developed falling particle receiver for on-sun testing at the National Solar Thermal Test Facility (NSTTF).
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Heydari, Ali, and Saeed Kargar. "Analysis and Optimized Design of a Packaged Liquid Chiller: Part I — Analytical Modelling." In ASME 2005 Summer Heat Transfer Conference collocated with the ASME 2005 Pacific Rim Technical Conference and Exhibition on Integration and Packaging of MEMS, NEMS, and Electronic Systems. ASMEDC, 2005. http://dx.doi.org/10.1115/ht2005-72685.
Full textAbstract:
The purpose of this work is to develop a physical simulation model for the purpose of studying the effect of various design parameters on the performance of a packaged liquid chiller. A computer model which simulates the steady-state cyclic performance of a vapor compression chiller is developed for the purpose of performing detailed physical design analysis of actual industrial chillers. The model can be used for optimizing design and for detailed energy efficiency analysis of packaged liquid chillers. The simulation model takes into account presence of all chiller components such as compressor, shell-and-tube condenser and evaporator heat exchangers, thermostatic expansion valve and connection pipes and tubing’s by thermo-hydraulic modeling of heat transfer, fluids flow and thermodynamics processes in each one of the mentioned components. To verify the validity of the developed model, a 7.5 USRT packaged-liquid chiller is used and a laboratory test stand for brining the chiller to its standard steady-state performance condition is build. Experimental results obtained from testing the chiller in various load and temperature conditions are shown to be in good agreement with those obtained from simulating the performance of the chiller using the computer prediction model. In part II of this work, an entropy-minimization-optimization analysis is performed based on the developed analytical performance model of the chiller. The variation of design parameters in construction of shell-and-tube condenser and evaporator heat exchangers are studied using the developed performance and optimization analysis and simulation model and a best-match condition between the physical design and construction of chiller heat exchangers and its compressor is found to exist. It is expected that manufacturers of chillers and research organizations interested in developing energy-efficient design and analysis of chillers can take advantage of the presented study and its results.
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Deshpande, Kedaresh A., Tyler G. Voskuilen, Sumit Basu, Yuan Zheng, Timothe´e L. Pourpoint, and Jay P. Gore. "Design Construction and Test of a Subscale Ammonia Borane Reactor." In ASME 2010 International Mechanical Engineering Congress and Exposition. ASMEDC, 2010. http://dx.doi.org/10.1115/imece2010-39343.
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Two ammonia borane (AB or NH3BH3) dehydrogenation routes, namely hydrolysis and thermolysis, have been described in the literature. The work done on design, construction and testing of a subscale AB reactor is reported herein along with a discussion on the results. In this work, an AB dehydrogenation reactor system capable of handling two grams of AB per batch was designed. Operational safety, material compatibility and manufacturability were the major design requirements. The reactor system consisted of a high pressure feeder, a cylindrical stainless steel reactor vessel, an evolved gas heat exchanger and an ammonia filter, and a hydrogen flow meter. The reactor was operated in a temperature range of 430 K to 445 K for a nominal batch reaction time of 30 minutes. Measurements of hydrogen yield rates, system storage capacity and analysis of the reaction kinetics were completed. Overall repeatability of hydrogen yields was confirmed. A few practical problems associated with byproduct formation and removal are discussed in this paper.
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Shao, Shanshan, Luowei Cao, Guodong Jia, and Zhiyuan Han. "Fitness for Service Assessment of a Propylene Heat Exchanger Subjected to Fire Damage." In ASME 2020 Pressure Vessels & Piping Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/pvp2020-21342.
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Abstract Pressurized equipments maybe deform partially or wholly, and the mechanical properties of the construction material would be degraded due to a fire event. Fitness for service assessment can help to minimize reconstruction costs and allow safe resumption of unit operation as fast as possible. A propylene heat exchanger was exposed to overheating for about 3 hours due to a fire accident five or six meters far away. A fitness for service assessment was conducted according to API 579-1/ASME FFS-1. The material of the propylene heat exchanger is 09MnNiDR. The possible damage was examined by dimensional checks, hardness testing, in-situ field metallography, ultrasonic testing and magnetic particle testing. The heat exposure temperature of the propylene heat exchanger during the fire accident was estimated through the comparison between the results of in-situ field metallography examination and heat exposure simulation experiments. The heat exposure zones were identified based on the results of visual inspection and conjectural heat exposure temperature. The level 2 assessment was adopted to evaluate the heat exposure zones of V and VI. The approximate ultimate tensile strengths for the shell and the eastern head were converted from the hardness testing results. The caculated MAWP of the shell side is higher than the design pressure of the heat exchanger. The finite element method was adopted to evaluate the influence of the bulge in the upper part of the shell. The analytical results showed that the bulge had no significant effect on the operation of the heat exchanger before next inspection.
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Li, Shengqiang, Yin Xiong, Yalei Hao, and Shengyao Jiang. "Scaling for Different Containment Passive Cooling Design Under LOCA Conditions." In 2013 21st International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/icone21-15143.
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The containment passive cooling feature is one important indicator for advanced Pressurize Water Reactors (PWRs). Several innovative passive cooling designs have been proposed in industries, such as double steel cooling structure (DSS) in AP1000, the Vertical Heat exchanger in VVER, the water cooling wall in High Temperature Reactor (HTR), and ice cooler in some Generation II PWR plants. A universal passive cooling experimental facility is under design and construction. The object of this facility is performance testing and optimization of new passive cooling facilities. Considering of the diverse characteristics of the different passive cooling system, include mechanism of heat and mass transfer, conditions for operation and facility structures, a theoretical scaling study is necessary to be applied before a technical design process. Some general passive cooling models were made based on existing industrial designs. To enhance the compatibility of these models and future designs, pivotal and common parameters for these passive cooling designs were provided by scaling study. The main test facility will be built based on these parameters. For every different design, special appurtenances will be added to the main facility to complete the test device for special purposes. Time scale, facility height and physical properties were the most important parameters for the main test facility. Heat transfer area ratio, hydraulic diameter, volume flow rate and wall thickness of DSS was defined for appurtenances design.
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Balls, Vondell J., David S. Duncan, and Stephanie L. Austad. "The Component Test Facility: A National User Facility for Testing of High Temperature Gas-Cooled Reactor (HTGR) Components and Systems." In Fourth International Topical Meeting on High Temperature Reactor Technology. ASMEDC, 2008. http://dx.doi.org/10.1115/htr2008-58250.
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The Next Generation Nuclear Plant (NGNP) and other High-Temperature Gas-cooled Reactor (HTGR) Projects require research, development, design, construction, and operation of a nuclear plant intended for both high-efficiency electricity production and high-temperature industrial applications, including hydrogen production. During the life cycle stages of an HTGR, plant systems, structures and components (SSCs) will be developed to support this reactor technology. To mitigate technical, schedule, and project risk associated with development of these SSCs, a large-scale test facility is required to support design verification and qualification prior to operational implementation. As a full-scale helium test facility, the Component Test facility (CTF) will provide prototype testing and qualification of heat transfer system components (e.g., Intermediate Heat Exchanger, valves, hot gas ducts), reactor internals, and hydrogen generation processing. It will perform confirmation tests for large-scale effects, validate component performance requirements, perform transient effects tests, and provide production demonstration of hydrogen and other high-temperature applications. Sponsored wholly or in part by the U.S. Department of Energy, the CTF will support NGNP and will also act as a National User Facility to support worldwide development of High-Temperature Gas-cooled Reactor technologies.