Results 261 to 270 of about 25,657 (311)

Selection and validation on low-GWP refrigerants for a water-source heat pump

Applied Thermal Engineering, 2021
Heat pumps are generally recognized as an efficient energy-saving method, and are widely used in industrial and residential applications. Due to the ratification of the Kyoto Protocol, the use of high-GWP refrigerants is gradually being restricted and ...
Hongzhi Yan, Di Wu, Junyu Liang, Bin Hu, R. Wang   +4 more
semanticscholar   +1 more source

Environmental and enviroeconomic analyses of two different turbofan engine families considering landing and take-off (LTO) cycle and global warming potential (GWP) approach

Energy Conversion and Management, 2021
In this study, environmental and enviroeconomic analyses regarding two different turbofan engine families that are commonly used in commercial aircrafts are carried out at Landing and Take-Off (LTO) cycle involving take-off, climb-out, approach and idle ...
H. Aygun, H. Çalışkan
semanticscholar   +1 more source

Vapor-liquid equilibrium measurements and assessments of Low-GWP absorption working pairs (R32+DMETEG, R152a+DMETEG, and R161+DMETEG) for absorption refrigeration systems

Energy, 2021
This research aims to develop novel binary working pairs using low-GWP refrigerants (R32, R152a, or R161) and one chemical absorbent (DMETEG) for absorption refrigeration systems.
Xiao Zhang, Liang Cai, Tao Chen, Jingyi Qiao, Xiaosong Zhang   +4 more
semanticscholar   +1 more source

Thermodynamic Properties of Refrigerants with Low GWP

2017
Since the discovery in the 1970s of the stratospheric ozone depletion and the role of chlorinated compounds in this harmful event, the world of refrigeration has undertaken a change process still under way. After the progressive substitution of chlorofluorocarbons and hydrochlorofluorocarbons with nonchlorinated hydrofluorocarbons and natural fluids ...
Bobbo Sergio, Fedele Laura, Steven Brown J   +2 more
openaire   +3 more sources

Techno-economic and Environmental Analysis of Low-GWP Alternative Refrigerants in Cold Storage Unit under Year-round Working Conditions

International journal of refrigeration, 2021
The impact of refrigerants with high global warming potential (GWP) on climate change necessitates the use of alternative refrigerants in cold storage systems.
E. Gao, Zhongbin Zhang, Qingqing Deng, Huaqian Jing, Xiaolin Wang, Xiao-song Zhang   +5 more
semanticscholar   +1 more source

Energy and exergy analysis of low GWP refrigerants in cascade refrigeration system

Energy, 2019
In this paper, R23, R41 and R170 are used in the low-temperature cycle (LTC) and R32, R1234yf, R1234ze, R161, R1270, R290 and R717 are used in the high-temperature cycle (HTC) refrigerant in cascade refrigeration system (CRS).
Zhili Sun, Qifan Wang, Zhiyuan Xie, Shengchun Liu, Dandan Su, Qixuan Cui   +5 more
semanticscholar   +1 more source

Application of the GWPS for Machining of a Transmission Housing

Volume 6: 8th International Power Transmission and Gearing Conference, 2000
Abstract One component of a modern machining system that has remained virtually unchanged, since time immemorial, is part location. The fundamental basis of current methods of part location is the concept of a physical datum surface, which is created in the first machining operation and conducting all the further machining operations ...
Suren B. Rao, Gary L. Neal, Edward C. DeMeter, Martin W. Trethewey   +3 more
openaire   +1 more source

TEWI analysis of a stand-alone refrigeration system using low-GWP fluids with leakage ratio consideration

International journal of refrigeration, 2020
In few years, stand-alone systems will rely on low-GWP refrigerants in order to reduce their direct impact, which agrees with the recent regulations and standards.
R. Llopis, D. Calleja-Anta, A. Maiorino, L. Nebot-Andrés, D. Sánchez, R. Cabello   +5 more
semanticscholar   +1 more source

Exergetic performance of CO2 and ultra-low GWP refrigerant mixtures as working fluids in ORC for waste heat recovery

, 2020
Environmental regulations target refrigerants with global warming potential (GWP) above 150. Meanwhile, zeotropic mixtures are proven to increase the exergetic efficiency of Organic Rankine Cycles (ORCs).
K. Braimakis, A. Mikelis, Antonios Charalampidis, S. Karellas   +3 more
semanticscholar   +1 more source

Honeywell licenses low-GWP refrigerant

C&EN Global Enterprise, 2016
Honeywell has licensed India’s Navin Fluorine International technology to make hydrofluoroolefin (HFO)-1234yf, an automobile air conditioning fluid with low global warming potential (GWP).
openaire   +1 more source