Results 41 to 50 of about 155 (132)

Refrigerator Performance With Natural Refrigerant (R1270) Double Pipe Heat Exchanger, Various Capillary Pipe Lengths

JST (Jurnal Sains dan Teknologi), 2023
Refrigerator technology continues to develop towards a better and more efficient direction. Refrigerator must be given a touch of innovation to get the best performance. This study aims to obtain data on the performance of refrigerators with double pipe heat exchanger innovation and variations in the length of the capillary tube.
openaire   +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  

Experimental evaluation of natural CO2-based mixtures with hydrocarbons R290 and R1270 in a transcritical refrigeration plant

International Journal of Refrigeration
In light of the low performance of the basic CO2 transcritical refrigeration cycle, this study explores several CO2-hydrocarbon blends to enhance the Coefficient of Performance (COP) and, consequently, minimise the cycle's electrical power consumption. Based on a single-stage cycle with IHX four blends of carbon dioxide/propylene (CO2/R1270) and carbon
R. Larrondo-Sancho, D. Sánchez, R. Cabello   +2 more
openaire   +1 more source

Comparative thermodynamic analyses of Rankine cycles using different working fluids for LNG cold energy recovery

Case Studies in Thermal Engineering
This study investigates the impact of condensation temperature on the thermodynamics of Rankine cycles for LNG cold energy recovery using seawater as heat source.
Qiang Liu, Jian Song, Yuanyuan Duan
doaj   +1 more source

Theoretical Study on Novel Refrigerant Mixture R1270/R152a/R13I1

Zhileng xuebao, 2010
A new refrigerant mixture,R1270/R152a/R13I1,is proposed as a substitute for R22 in this paper.The thermophysical properties of this environment-friendly mixture and its refrigeration system performance are theoretically analyzed with the software Refprop
冯永斌, 晏刚, 钱文波
doaj  

Experimental study on alternative performance of R32/R1270 in low temperature heating heat pump

Thermal Science
The effect of refrigerant charge on the system performance of quasi-two-stage compression heat pump (QCHP) with replacement refrigerant of R32/R1270 (15/85 wt.%) (B for short) for district heating was studied under nominal conditions based on the self-designed QCHP test system and the feasibility of replacing R22 with B was discussed under variable ...
Fujun Ju, Haoran Wang, Xiaowei Fan, Huifan Zheng, Qinglei Liu, Xurong Wang, Chengjie Xiao, Weihang Wu, Yang Liu   +8 more
openaire   +1 more source

Energy, exergy and economical analysis of N2O based cascade refrigeration system for ultralow temperature cooling applications using different eco-friendly refrigerants in high temperature cycle

Results in Engineering
Implementing the Montreal Protocol has limited the use of conventional refrigerants and has led industries to find optimal or economical eco-friendly refrigerants to reduce environmental hazards.
Sachin Kumar, Pardeep Gahlot, Suresh Kumar   +2 more
doaj   +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

Simultaneous Optimization of Exergy and Economy and Environment (3E) for a Multistage Nested LNG Power Generation System

Journal of Marine Science and Engineering
The study introduces an innovative three-stage nested power generation system that enables the cascading utilization of LNG cold energy. It makes the most of wasted energy by using ship jacket cooling water (JCW) and exhaust gas (EG) as heat sources, a ...
Zhenzhen Chen, Xinglin Yang, Junhu Zou, Qiang Lei, Bin Yan   +4 more
doaj   +1 more source

Soft Tissue Benign Hand Masses in the First Web Space: A Retrospective Case Series. [PDF]

Cureus, 2023
Saleh ES, De Carvalho AF, Hasan S, Abdelgawad A, Thabet AM, Moneim MS.   +5 more
europepmc   +1 more source