Results 31 to 40 of about 1,918 (181)
International Journal of Refrigeration, 2016 Abstract The low-global warming potential (GWP) refrigerant of R1234ze(E) is considered to be a prospective alternative to conventional R134a for car air conditioners, whereas the isomer R1234ze(Z) and R1233zd(E) are anticipated to be the low-GWP alternatives to R245fa used in high-temperature heat pumps and organic Rankine cycles.
Ryuichi Nagata +2 more
openaire +1 more source
Functional Equations for Calculating the Properties of Low-GWP R1234ze(E) Refrigerant [PDF]
Energies, 2020 Legal requirements for the use of refrigerants increasingly restrict the use of high-global warming potential (GWP) refrigerants. As a result, there is a growing interest in natural refrigerants and in those belonging to the hydrofluoroolefins (HFO) class, which can be used on their own or in mixtures.
Piotr Życzkowski +4 more
openaire +2 more sources
Flow boiling heat transfer of a non-azeotropic mixture inside a single microchannel [PDF]
, 2014 This paper was presented at the 4th Micro and Nano Flows Conference (MNF2014), which was held at University College, London, UK. The conference was organised by Brunel University and supported by the Italian Union of Thermofluiddynamics, IPEM, the ...
4th Micro and Nano Flows Conference (MNF2014) +3 more
core
Energy benefit assessment of a Water Loop Heat Pump system integrated with a CO2 commercial refrigeration unit [PDF]
, 2017 The improvement of energy efficiency and the use of environmentally friendly working fluids are key elements of current European policies. Supermarkets are intensive energy consumers and approximately the 40% of their annual energy consumption is for ...
Cortella, Giovanni +3 more
core +1 more source
Energy Science &Engineering, EarlyView.This review highlights how nano oils and eco‐friendly nano refrigerants enhance energy‐efficient refrigeration by improving thermal conductivity, lubrication, and system performance. The integration of rheological and tribological testing confirms reduced compressor work, better heat transfer, and higher COP using sustainable, low‐GWP refrigerants for ...
Mohammed Dilawar +7 more
wiley +1 more source
Asia-Pacific Journal of Chemical Engineering, Volume 21, Issue 1, January/February 2026.ABSTRACT This study investigates binary zeotropic mixtures of R744 (CO₂) blended with eco‐friendly refrigerants for medium‐high temperature heat pumps, comparing them with conventional R744/R134a systems. All mixtures meet 60–80 K temperature lift requirements under low‐temperature conditions. A genetic algorithm optimized system parameters using fixed
Lingling Sun +6 more
wiley +1 more source
Journal of Nanomaterials, Volume 2019, Issue 1, 2019., 2019 In the process of adsorption and separation of fluid molecules on the solid surface of porous nanomaterials, the mutual transformation of thermal energy and surface energy can improve the heat absorption and energy utilization efficiency of circulating working medium.
Qiang Wang +5 more
wiley +1 more source
Unified Modeling Suite for Two-Phase Flow, Convective Boiling and Condensation in Macro-and Micro-Channels [PDF]
, 2014 This paper was presented at the 4th Micro and Nano Flows Conference (MNF2014), which was held at University College, London, UK. The conference was organised by Brunel University and supported by the Italian Union of Thermofluiddynamics, IPEM, the ...
4th Micro and Nano Flows Conference (MNF2014) +2 more
core
Energy Science &Engineering, Volume 13, Issue 5, Page 2389-2400, May 2025.ABSTRACT This paper proposes an ejector‐expansion refrigeration cycle (EERC) with two evaporating temperatures to recover partial expansion work and greatly reduces the throttling loss of the other expansion valve connected to the evaporator compared with the conventional bievaporator refrigeration cycle (CBEC).
Xiaoqin Liu, Weibin Wang, Jianyong Wang
wiley +1 more source
Effect of Condenser Fouling on Performance of Vapor Compression Refrigeration System
Journal of Thermodynamics, Volume 2015, Issue 1, 2015., 2015 Effect of condenser fouling is evaluated on the performance of a vapour compression system with refrigerants HFO1234yf and HFO1234ze as an alternative to HFC134a. The condenser coolant temperature has been varied between 35 and 40°C to evaluate the effect of fouling at different condenser temperatures.
Naveen Solanki +3 more
wiley +1 more source