THE EFFECT OF REFRIGERANT OUTLET TEMPERATURE FOR EXERGY EFFICIENCY OF HEAT PUMPS USING CO2

被引：0

作者：

Ozgur, Arif Emre ^{[1
]}

Bayrakci, Hilmi Cenk ^{[2
]}

机构：

[1] Suleyman Demirel Univ, Tekn Egitim Fak, Makine Egitimi Bolumu, TR-32260 Isparta, Turkey

[2] Suleyman Demirel Univ, Senirkent Meslek Yuksek Okulu Iklimlendirme Sogut, TR-32260 Isparta, Turkey

来源：

ISI BILIMI VE TEKNIGI DERGISI-JOURNAL OF THERMAL SCIENCE AND TECHNOLOGY | 2010年 / 30卷 / 01期

关键词：

CO2; Transcritical; Heat pump; Exergy; Efficiency; CARBON-DIOXIDE; PRESSURES; CYCLES;

D O I：

暂无

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Because of the global warming, usage of natural refrigerants is being common in large scale. CO, cooling systems especially preferred at vehicle air conditioners and hot water heat pump applications. In this study, a single stage heat pump using CO2 refrigerant and having transcritical cycle is theoretically modeled. The effect of gas cooler outlet temperature for exergetic efficiency of heat pump is presented. Range of evaporating temperature is selected between -10 and +10 C degrees values. Calculations are made by software (EES-Engineering Equation Solver), and results are presented graphically.

引用

页码：73 / 78

页数：6

共 50 条

[21] Energy savings and CO2 emission reduction by using geothermal heat pumps
Zheng Xiuhua
[J]. Engineering Sciences, 2010, 8 (01) : 44 - 48
[22] OPTIMUM HIGH PRESSURE FOR TRANSCRITICAL CO2 HEAT PUMPS CONSIDERING ISENTROPIC EFFICIENCY AND GLIDING HEAT EXTRACTION
Spindler, Klaus
[J]. 13TH IIR GUSTAV LORENTZEN CONFERENCE ON NATURAL REFRIGERANTS: NATURAL REFRIGERANT SOLUTIONS FOR WARM CLIMATE COUNTRIES, 2018, : 63 - 70
[23] Commercial refrigeration system using CO2 as the refrigerant
Girotto, S
Minetto, S
Neksa, P
[J]. INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID, 2004, 27 (07): : 717 - 723
[24] Re:: CO2 as a refrigerant
Whalley, A
[J]. ASHRAE JOURNAL, 2005, 47 (03) : 12 - 12
[25] Performance characteristics of a heat pump using renewable transcritical CO2 refrigerant for heating water
Yunus, Mohammed
Oreijah, Mowffaq M.
[J]. INTERNATIONAL JOURNAL OF LOW-CARBON TECHNOLOGIES, 2021, 16 (03) : 831 - 841
[26] The residential heat pumps' impact on national CO2 emission
Niemierka, Elzbieta
[J]. 10TH CONFERENCE ON INTERDISCIPLINARY PROBLEMS IN ENVIRONMENTAL PROTECTION AND ENGINEERING EKO-DOK 2018, 2018, 44
[27] Control of Heat Pumps with CO2 Emission Intensity Forecasts
Leerbeck, Kenneth
Bacher, Peder
Junker, Rune Gronborg
Tveit, Anna
Corradi, Olivier
Madsen, Henrik
Ebrahimy, Razgar
[J]. ENERGIES, 2020, 13 (11)
[28] Exergy analysis of a "CO2 zero emission" high efficiency plant
Calabrò, A
Girardi, G
Fiorini, P
Sciubba, E
[J]. Energy-Efficient, Cost-Effective and Environmentally-Sustainable Systems and Processes, Vols 1-3, 2004, : 405 - 422
[29] EXERGY ANALYSIS OF THE COUPLING OF TWO CO2 HEAT PUMP CYCLES
Dima, Daniel
Dobrovicescu, Alexandru
Ionita, Claudia
Dobre, Catalina
[J]. REVUE ROUMAINE DES SCIENCES TECHNIQUES-SERIE ELECTROTECHNIQUE ET ENERGETIQUE, 2023, 68 (02): : 236 - 240
[30] The Exergy Analysis Of Gas Cooler In CO2 Heat Pump System
Xie, Yingbai
Wang, Zhichao
Cui, Kuikui
Zhang, Xuedong
[J]. 2011 2ND INTERNATIONAL CONFERENCE ON CHALLENGES IN ENVIRONMENTAL SCIENCE AND COMPUTER ENGINEERING (CESCE 2011), VOL 11, PT C, 2011, 11 : 1555 - 1560

← 1 2 3 4 5 →