alternativeАльтернативная энергетика и экология (ISJAEE)Alternative Energy and Ecology (ISJAEE)1608-8298Международный издательский дом научной периодики "Спейс10.15518/isjaee.2020.10.002alternative-2146Research ArticleI. ВОЗОБНОВЛЯЕМАЯ ЭНЕРГЕТИКА. 7. Нетрадиционные источники возобновляемой энергииI. RENEWABLE ENERGY. 7. Unconventional sources of renewed energyВычислительная оценка термофизических свойств смешанного хладагента и влияния давления R-290 и R-600 A на различные композиции для ВКМComputational evaluation of thermophysical properties of mixed refrigerant and effect of pressure R-290 AND R-600 A at different compositions for VCRSПравинкумарСипанаKumarSeepana Praveen

Сипана Правинкумар – аспирант, кафедра атомных станций и возобновляемых источников энергии

Екатеринбург

Seepana Praveen Kumar – postgraduate, Department of Nuclear Power Plants and Renewable Energy Sources

Ekaterinburg

seepanapraveenkumar5@gmail.comАлванНасир Т.AlwanNaseer T.

Насир Т. Алван – аспирант, кафедра атомных станций и возобновляемых источников энергии

Киркук

Naseer T. Alwan – postgraduate, Department of Nuclear Power Plants and Renewable Energy Sources

Kirkuk

nassir.towfeek79@gmail.comВелькинВ. И.VelkinV. I.

Велькин Владимир Иванович – профессор кафедры атомных электростанций и возобновляемых источников энергии

Екатеринбург

Velkin Vladimir Ivanovich – Professor of the Department of Nuclear Power Plants and Renewable Energy Sources

Ekaterinburg

v.i.velkin@urfu.ruДондапатиРаджа СехарDondapatiRaja Sekhar

Раджас Секхар Дондапати – профессор

Пенджаб

Rajas Sekhar Dondapati – Professor

Punjab

Rajasekhar9@gmail.comУральский федеральный университетРоссияUral Federal University,Russian FederationКиркукский технический колледж; Северный технический университетИракKirkuk Technical College; Northern Technical UniversityIraqУральский федеральный университетРоссияUral Federal UniversityRussian FederationВысший профессиональный университетИндияLovely Professional UniversityIndia202001082022028-302431Copyright © Международный издательский дом научной периодики "Спейс, 20222022Международный издательский дом научной периодики "СпейсМеждународный издательский дом научной периодики "Спейсhttps://www.isjaee.com/jour/about/submissions#copyrightNoticehttps://www.isjaee.com/jour/article/view/2146

Концепция смешанных хладагентов появилась в течение последних нескольких десятилетий, начиная с середины 20-го века, благодаря своим превосходным теплофизическим свойствам по сравнению с базовыми жидкостями. Он в основном используется в качестве теплоносителя в теплообменном оборудовании, таком как теплообменники и термоэлектрические системы охлаждения. В настоящем исследовании был проведен анализ физико-термодинамических свойств и различных параметров с учетом 10 г смешанного хладагента пропана и изобутана при различном соотношении составов. Все результаты представлены для моделирования, выполненного при температуре около 300-350 К и диапазоне давлений от 3 МПа до 7 МПа. В результате они пришли к выводу, что с повышением температуры удельная теплоемкость смешанного хладагента уменьшается. Аналогично, теплопроводность увеличивается с увеличением температуры для смешанного хладагента при разных составах. Кроме того, поскольку давление изменяется от 3 МПа до 7 МПа при сохранении постоянной температуры на уровне 350 К, удельная теплоемкость уменьшается на 5,2%, а теплопроводность следует противоположной тенденции и увеличивается на 6,9%.

The concept of mixed refrigerant fluids has emerged during the past few decades from 20th century due to its superior thermophysical properties as compared to base fluids. It is primarily used as coolants in heat transfer equipment such as heat exchangers and thermoelectric cooling systems. In the current study, an analysis of the physicalthermodynamic properties and the different parameters was performed by considering 10gms of mixed refrigerant of propane and ISO-butane at different compositions ratio. All results presented for simulations carried out at range temperature about 300-350K and a pressure range of 3MPa to 7MPa. They concluded from the result that as the temperature increases specific heat of mixed refrigerant decreases. Similarly, thermal conductivity increases with an increase in temperature for a mixed refrigerant at different compositions. Further, as the pressure is varied from 3MPa to 7MPa while keeping the temperature constant at 350K, the specific heat decreases by 5.2% as well as thermal conductivity follows the opposite trend and is increased by 6.9%.

тепловой насостеплофизические характеристикитеплообменхладагентытеплообменникиrefrigerantsthermo-physicalbase fluidsheat transfercoolantsheat exchangersReferencesG. Vineeth, S. PraveenKumar, G. Vyas, R. S. Dondapati, and P. R. Usurumarti, “Experimental investigation on the effect of different compositions on chill down time of evaporator with mixed refrigerants,” Int. J. Mech. Eng. Technol., vol. 8, no. 7, pp. 1556–1566, 2017.G. Vineeth, S. PraveenKumar, G. Vyas, R. S. Dondapati, and P. R. Usurumarti, “Experimental investigation on the effect of different compositions on chill down time of evaporator with mixed refrigerants,” Int. J. Mech. Eng. Technol., vol. 8, no. 7, pp. 1556–1566, 2017.S. PraveenKumar, R. S. Dondapati, P. R. Usurumarti, and P. Anand, “Parametric evaluation of thermophysical properties for a mixed refrigerant of propane and iso-butane in industrial applications,” Int. J. Mech. Eng. Technol., vol. 8, no. 7, pp. 1246–1251, 2017.S. PraveenKumar, R. S. Dondapati, P. R. Usurumarti, and P. Anand, “Parametric evaluation of thermophysical properties for a mixed refrigerant of propane and iso-butane in industrial applications,” Int. J. Mech. Eng. Technol., vol. 8, no. 7, pp. 1246–1251, 2017.V. Srikanth, S. PraveenKumar, R. S. Dondapati, G. Vyas, and P. R. Usurumarti, “Effect of inlet temperature on reynolds number and nusselt number with mixed refrigerants for industrial applications,” Int. J. Mech. Eng. Technol., vol. 8, no. 7, pp. 1567–1572, 2017.V. Srikanth, S. PraveenKumar, R. S. Dondapati, G. Vyas, and P. R. Usurumarti, “Effect of inlet temperature on reynolds number and nusselt number with mixed refrigerants for industrial applications,” Int. J. Mech. Eng. Technol., vol. 8, no. 7, pp. 1567–1572, 2017.A. Rokkam, S. PraveenKumar, G. Vyas, R. S. Dondapati, and P. R. Usurumarti, “Computational evaluation of pressure drop and heat transfer for a mixed refrigerant used for industrial applications,” Int. J. Mech. Eng. Technol., vol. 8, no. 7, pp. 1583–1589, 2017.A. Rokkam, S. PraveenKumar, G. Vyas, R. S. Dondapati, and P. R. Usurumarti, “Computational evaluation of pressure drop and heat transfer for a mixed refrigerant used for industrial applications,” Int. J. Mech. Eng. Technol., vol. 8, no. 7, pp. 1583–1589, 2017.Conditioning, “Alternative Refrigerants and Cycles for Compression Refrigeration Systems, 2005.Conditioning, “Alternative Refrigerants and Cycles for Compression Refrigeration Systems, 2005.Duminil, “A Brief History of Refrigeration,” Int. Inst. Regrigeration, pp. 1–5, 2010.Duminil, “A Brief History of Refrigeration,” Int. Inst. Regrigeration, pp. 1–5, 2010.C. Guide, Air conditioning and refrigeration, vol. 266, no. 2. 1958.C. Guide, Air conditioning and refrigeration, vol. 266, no. 2. 1958.S. K. Wang, Handbook of Air Conditioning and Refrigeration. 2000.S. K. Wang, Handbook of Air Conditioning and Refrigeration. 2000.H. Uchida, “Refrigeration and Air-Conditioning,” Trans. Japan Soc. Mech. Eng., vol. 25, pp. 913–915, 1959.H. Uchida, “Refrigeration and Air-Conditioning,” Trans. Japan Soc. Mech. Eng., vol. 25, pp. 913–915, 1959.M. Holt, “Air-conditioning and refrigeration equipment,” EC M Electr. Constr. Maint., vol. 112, no. 8, 2013.M. Holt, “Air-conditioning and refrigeration equipment,” EC M Electr. Constr. Maint., vol. 112, no. 8, 2013.A. S. Gow, “A modified clausius equation of state for calculation of multicomponent refrigerant vapor-liquid equilibria,” Fluid Phase Equilib., vol. 90, no. 2, pp. 219–249, 1993.A. S. Gow, “A modified clausius equation of state for calculation of multicomponent refrigerant vapor-liquid equilibria,” Fluid Phase Equilib., vol. 90, no. 2, pp. 219–249, 1993.R. N. Richardson and J. S. Butterworth, “Vapour-Compression Refrigeration System PROPa,” no. July 1993, 1994.R. N. Richardson and J. S. Butterworth, “Vapour-Compression Refrigeration System PROPa,” no. July 1993, 1994.G. Lorentzen, “The use of natural refrigerants: a complete solution to the CFC/HCFC predicament,” Int. J. Refrig., vol. 18, no. 3, pp. 190–197, 1995.G. Lorentzen, “The use of natural refrigerants: a complete solution to the CFC/HCFC predicament,” Int. J. Refrig., vol. 18, no. 3, pp. 190–197, 1995.L. Boumaraf and A. Lallemand, “Modeling of an ejector refrigerating system operating in dimensioning and off-dimensioning conditions with the working fluids R142b and R600a,” Appl. Therm. Eng., vol. 29, no. 2–3, pp. 265–274, 2009.L. Boumaraf and A. Lallemand, “Modeling of an ejector refrigerating system operating in dimensioning and off-dimensioning conditions with the working fluids R142b and R600a,” Appl. Therm. Eng., vol. 29, no. 2–3, pp. 265–274, 2009.A. S. Dalkilic, O. Agra, I. Teke, and S. Wongwises, “Comparison of frictional pressure drop models during annular flow condensation of R600a in a horizontal tube at low mass flux and of R134a in a vertical tube at high mass flux,” Int. J. Heat Mass Transf., vol. 53, no. 9–10, pp. 2052–2064, 2010.A. S. Dalkilic, O. Agra, I. Teke, and S. Wongwises, “Comparison of frictional pressure drop models during annular flow condensation of R600a in a horizontal tube at low mass flux and of R134a in a vertical tube at high mass flux,” Int. J. Heat Mass Transf., vol. 53, no. 9–10, pp. 2052–2064, 2010.M. Mohanraj, S. Jayaraj, C. Muraleedharan, and P. Chandrasekar, “Experimental investigation of R290/R600a mixture as an alternative to R134a in a domestic refrigerator,” Int. J. Therm. Sci., vol. 48, no. 5, pp. 1036–1042, 2009.M. Mohanraj, S. Jayaraj, C. Muraleedharan, and P. Chandrasekar, “Experimental investigation of R290/R600a mixture as an alternative to R134a in a domestic refrigerator,” Int. J. Therm. Sci., vol. 48, no. 5, pp. 1036–1042, 2009.P. M. Ardhapurkar, A. Sridharan, and M. D. Atrey, “Performance evaluation of heat exchanger for mixed refrigerant J-T cryocooler,” Cryogenics (Guildf)., vol. 63, pp. 49–56, 2014.P. M. Ardhapurkar, A. Sridharan, and M. D. Atrey, “Performance evaluation of heat exchanger for mixed refrigerant J-T cryocooler,” Cryogenics (Guildf)., vol. 63, pp. 49–56, 2014.G. Yan, H. Hu, and J. Yu, “Performance evaluation on an internal auto-cascade refrigeration cycle with mixture refrigerant R290/R600a,” Appl. Therm. Eng., vol. 75, pp. 994–1000, 2015.G. Yan, H. Hu, and J. Yu, “Performance evaluation on an internal auto-cascade refrigeration cycle with mixture refrigerant R290/R600a,” Appl. Therm. Eng., vol. 75, pp. 994–1000, 2015.G. Yan, T. Bai, and J. Yu, “Thermodynamic analysis on a modified ejector expansion refrigeration cycle with zeotropic mixture (R290/R600a) for freezers,” Energy, vol. 95, pp. 144–154, 2016.G. Yan, T. Bai, and J. Yu, “Thermodynamic analysis on a modified ejector expansion refrigeration cycle with zeotropic mixture (R290/R600a) for freezers,” Energy, vol. 95, pp. 144–154, 2016.Q. Chen, J. Yu, and G. Yan, “Performance analysis of a modified zeotropic mixture (R290/R600) refrigeration cycle with internal subcooler for freezer applications,” Appl. Therm. Eng., vol. 108, pp. 172–180, 2016.Q. Chen, J. Yu, and G. Yan, “Performance analysis of a modified zeotropic mixture (R290/R600) refrigeration cycle with internal subcooler for freezer applications,” Appl. Therm. Eng., vol. 108, pp. 172–180, 2016.

The authors declare that there are no conflicts of interest present.