Results 31 to 40 of about 3,003 (225)

Ejector refrigeration: A comprehensive review [PDF]

open access: yes, 2016
The increasing need for thermal comfort has led to a rapid increase in the use of cooling systems and, consequently, electricity demand for air-conditioning systems in buildings.
Besagni, Giorgio   +2 more
core   +1 more source

Performance of condensing and evaporating characteristics of an auto-refrigerating cascade system

open access: yesAdvances in Mechanical Engineering, 2019
The condensing and evaporating characteristics of an auto-refrigerating cascade cycle employing ternary zeotropic mixture R600a/R23/R14 are studied in this article. When the outlet temperature of condenser is 300 K, the composition ratio of R600a/R23/R14
Shengjun Rui, Xianghua Lu, Kunfeng Liang
doaj   +1 more source

Experimental Analysis of Alternate Refrigerant Mixtures in Refrigeration System [PDF]

open access: yesE3S Web of Conferences
This study focuses on conducting experimental analyses to assess the impact of alternative refrigerant blends within a vapor compression refrigeration system, with the aim of replacing the existing R134a refrigerant.
R Ragavendiran   +6 more
doaj   +1 more source

Performance of an oil-free linear compressor using R1234yf [PDF]

open access: yes, 2018
As an alternative to the hydrocarbons (HCs), R1234yf synthetic refrigerant from the family of the hydrofluoroolefins (HFOs), has emerged recently as a replacement fluid for R134a. The purpose of this study is to investigate the performance of an oil-free
Li, Zhaohua, Liang, Kun
core   +1 more source

Performance of TiO2 Nanolubricants on Air Infiltration Induced by Door Openings in a Domestic Refrigerator [PDF]

open access: yesE3S Web of Conferences
This study examines the performance of TiO2 nanolubricant at concentrations of 0, 0.2, and 0.4 g/L in a slightly modified refrigeration system, tested with door openings of 30, 60, 120, 180, 240, and 300 seconds.
Adelekan Damola S.   +3 more
doaj   +1 more source

Energy performance evaluation of R600a/MWCNT-nanolubricant as a drop-in replacement for R134a in household refrigerator system

open access: yesEnergy Reports, 2020
Vapour compression refrigerator systems working with R134a are associated with high energy demand and environmental problems and refrigerator consumers’ prioritise energy consumption in choosing their choice of refrigerator systems.
T.O Babarinde, S.A Akinlabi, D.M Madyira
doaj   +1 more source

State of Art on ORC Applications for Waste Heat Recovery and Micro-cogeneration for Installations up to 100kWe [PDF]

open access: yes, 1976
The growing cost for energy production and distribution as well as problems related to environmental pollution have induced an increasing interest in the research of alternative solutions and in particular innovative technologies capable of compromising ...
Obi, John Besong
core   +1 more source

Experimental Analysis of the Performance of the Eco-Friendly R510A and R600a Refrigerants in a Retrofitted Vapour Compression Refrigerating System

open access: yesNaše More (Dubrovnik), 2018
Halocarbon refrigerants have been scheduled for total phase out because they contributed significantly to the two major global environmental problems - ozone layer depletion and global warming.In this study, the performances of the environmentally ...
F. O. Borokinni   +2 more
doaj   +1 more source

Enhancing the energy efficiency of vapour compression refrigerator system using R600a with graphene nanolubricant

open access: yesEnergy Reports, 2020
The use of graphene nanolubricant to enhance the performance of eco-friendly refrigerant (R600a) in a vapour compression system was investigated. The graphene nanoparticles were dispersed in the base lubricant and prepared for three different samples of ...
T.O. Babarinde   +3 more
doaj   +1 more source

Analysis of oil-free linear compressor operated at high pressure ratios for household refrigeration [PDF]

open access: yes, 2018
Compared with conventional reciprocating compressor for vapour compression refrigeration (VCR) system, linear compressor offers higher energy efficiency and oil-free operation, which allows the use of mini/micro-channel heat exchangers.
Liang, Kun
core   +1 more source

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