Results 101 to 110 of about 1,757 (201)

Research on Optimazition Refrigerant Charge of Natural Alternative Refrigerants R1270 and R290 in Heat Pump Water Heater and Their Performances

Zhileng xuebao
Both R1270 and R290 are the alternative refrigerants of great potential. The influence of refrigerant charge on the performances of heat pump water heater using R1270 and R290 respectively and the temperature distribution of the heat transfer fluids in ...
巨福军, 侯力豪, 刘清磊, 王浩然, 肖成杰, 范晓伟   +5 more
doaj  

Експериментальне дослідження середньої молярної маси компресорних мастил та розчинності холодоагента R290 у них

, 2020
Останні роки спостерігається підвищений інтерес до застосування вуглеводневих холодоагентів у парокомпресійному холодильному обладнанні. Але в літературі практично відсутні данні з кривої розшарування розчинів холодоагенту R290 в синтетичних компресорних
С.Г. Корнієвич, П.С. Нестеров, Е.Д. Дмитрієв, О.Я. Хлієва, В.П. Желєзний
core  

Energy and Exergy Analysis of Chest Freezer Using R134a and R290 as Working Fluids Based on Experimental Data

Although R134a has a very high global warming (GWP) effect, it is still used as a refrigerant in chest freezers. As an alternative to R134a is R290 which has a very low GWP value, which is only 3.
Tohir, Toto, Nuriyadi, Muhammad, Hidayat, Syarif, Sulaimon, Shodiya, Muliawan, Rizki, Pramudantoro, Triaji Pangripto   +5 more
core   +1 more source

A Study on the Simulation and Experiment of Evaporative Condensers in an R744 Air Conditioning System. [PDF]

Micromachines (Basel), 2023
Dang T, Nguyen H.
europepmc   +1 more source

Performance Comparison of R32, R410A and R290 Refrigerant in Inverter Heat Pumps Application

, 2016
Since low GWP matter rise up in the market, all heat pump manufacturers are searching for the refrigerants which are attractive for environment reasons. R290 is one of the player. It has a negligible GWP.
Khositkullaporn, Kornvalee, Konghuayrob, Supharuek   +1 more
core  

Energy and exergy analysis of a modified three-stage auto-cascade refrigeration cycle using low-GWP refrigerants for sustainable development. [PDF]

J Therm Anal Calorim, 2023
Qin Y, Li N, Zhang H, Liu B.
europepmc   +1 more source

Recent advances on air heating system of cabin for pure electric vehicles: A review. [PDF]

Heliyon, 2022
Yang D, Huo Y, Zhang Q, Xie J, Yang Z.
europepmc   +1 more source

Research to Optimize the Refrigerant Charge of the Natural Refrigerants R1270 and R290 in Heat-Pump Water Heaters and Their Performance

Zhileng xuebao
R1270 and R290 are alternative refrigerants with great potential. In this study, the influence of the refrigerant charge on the performance of the heat-pump water heater with R1270 and R290, the temperature distribution of the heat transfer fluids in the
Ju Fujun, Hou Lihao, Liu Qinglei, Wang Haoran, Xiao Chengjie, Fan Xiaowei   +5 more
doaj  

Kinetic models for estimating occupancy from single-scan PET displacement studies. [PDF]

J Cereb Blood Flow Metab, 2023
Laurell GL, Plavén-Sigray P, Johansen A, Raval NR, Nasser A, Aabye Madsen C, Madsen J, Hansen HD, Donovan LL, Knudsen GM, Lammertsma AA, Ogden RT, Svarer C, Schain M.   +13 more
europepmc   +1 more source

A test to determine the site of abnormal neuromuscular refractoriness. [PDF]

Clin Neurophysiol Pract, 2022
Tankisi H, Bostock H, Grafe P.
europepmc   +1 more source