Results 21 to 30 of about 155 (132)
Energy Science &Engineering, Volume 10, Issue 3, Page 740-751, March 2022., 2022 Experimental study on a power generation plant of a 1 kW small‐scale Organic Rankine Cycle system using R290 has been investigated. Effect of pressure drop and heat source temperature is examined. The pressure drop exhibits a relatively sensitivity than heat source temperature about the system performance.
Feng Wang +4 more
wiley +1 more source
Energy Science &Engineering, Volume 9, Issue 12, Page 2281-2297, December 2021., 2021 This experimental study evaluates the energy performance and climatic changes of a cascade cooling system operating with the R134a/R744 pairs (cooling capacity of 4.5‐6 kW) and R438A/R744. Abstract This experimental study evaluates the energy performance and climatic changes of a cascade cooling system operating with the R134a/R744 pairs (cooling ...
Marcus Vinícius Almeida Queiroz +6 more
wiley +1 more source
Energy Technology, Volume 9, Issue 4, April 2021., 2021 How to select zeotropic mixtures to increase heat pump efficiency? Why has a well‐matching temperature glide not been sufficient to realize efficiency gains in practice? This article aims to provide answers by showing the mixture impact on the compressor and presenting a mixture selection criterion beyond the temperature glide.
Dennis Roskosch +4 more
wiley +1 more source
Applied Thermal Engineering, 2021 Abstract Data base for evaporation of flowing isobutane and propylene in compact internally enhanced surfaces is extended by experimental tests in two microfinned tubes and a smooth tube. The outer diameter for all of the test tubes was 5 mm. Heat transfer coefficient and pressure drop were compared for both fluids in all tubes in comparable working ...
Ehsan Allymehr +3 more
openaire +1 more source
Thermal Performance Analysis of Low‐GWP Refrigerants in Automotive Air‐Conditioning System
Advances in Materials Science and Engineering, Volume 2020, Issue 1, 2020., 2020 The energy and exergy of low‐global warming potential (GWP) refrigerants were investigated experimentally and theoretically. Refrigerants with a modest GWP100 of ≤ 150 can be sufficient for bringing down emissions which were concerned for the automotive air‐conditioning system.
Yousuf Alhendal +4 more
wiley +1 more source
Development of Alternative Binary Mixtures to Replace HFC 134a in Domestic Refrigerator
Chemical Engineering Transactions, 2018 Thermodynamic and volumetric properties of alternate Refrigerant mixtures to replace R134a have been predicted using SRK EOS and modified PSRK mixing rule using UNIFAC method.
Parashurama Siddegowda +2 more
doaj +1 more source
Performance Evaluation Of Refrigerated Pickup Truck Using Hydrocarbon Refrigerants [PDF]
E3S Web of ConferencesHFCs group refrigerants are still widely used in refrigerated pickup trucks. This refrigerant is a synthetic chemical and has a high potential to cause global warming and damage the ozone layer.
Sumardi Kamin, Taqwali Berman Ega
doaj +1 more source
IOP Conference Series: Materials Science and Engineering, 2021 Abstract Refrigerant R410A is a cooling barrier that is still widely used for air conditioning. This R410A contains the Fluoro element which can increase the value of GWP. In this research simulation, we used an AC unit using R410A with the aim of reducing GWP (Global Warming Potential) by mixing synthetic refrigerant with hydrocarbons ...
W Widodo +3 more
openaire +1 more source
Thermodynamic screening of alternative refrigerants for R290 and R600a
Results in Engineering, 2020 Due to Regulation EU 517/2014 (F-Gas), the use of refrigerants with GWP higher than 150 was limited from 2015 on in small capacity refrigeration systems in Europe.
Daniel Calleja-Anta +5 more
doaj +1 more source
Performance Analysis of the R290 Variable Geometry Gas Ejector Application for Other Refrigerants
Chemical Engineering Transactions, 2023 Ejector refrigeration systems are promising alternative to standard vapour compression refrigeration systems. They can be driven with low-grade heat or solar systems, which make them even more renewable solution aligned with global energy transition.
Rafal Fingas +2 more
doaj +1 more source