Results 31 to 40 of about 2,942 (221)

HFO1234ze(e) As an Alternative Refrigerant for Ejector Cooling Technology

open access: yesEnergies, 2019
The paper presented a mathematical assessment of selected refrigerants for the ejector cooling purpose. R1234ze(e) and R1234yf are the well-known refrigerants of hydrofluoroolefins (HFOs), the fourth-generation halocarbon refrigerants.
Van Vu Nguyen   +2 more
doaj   +1 more source

Flow boiling heat transfer of R134a and low GWP refrigerants in a horizontal micro-scale channel [PDF]

open access: yes, 2017
The present paper presents an investigation of the effects of the refrigerant type on the heat transfer coefficient during flow boiling inside micro-scale channels.
Abernethy   +53 more
core   +1 more source

Refrigerant R32 as lower GWP working fluid in residential air conditioning systems in Europe and the USA [PDF]

open access: yes, 2017
Because air conditioning and heat pump systems contribute greatly to greenhouse gas emissions, equipment with both lower global warming potential (GWP) working fluids and a higher level of performance should be used.
Makhnatch, Pavel   +3 more
core   +2 more sources

Theoretical study of thermally driven heat pumps based on double organic rankine cycle : Working fluid comparison and off-design simulation [PDF]

open access: yes, 2013
Part of: Thermally driven heat pumps for heating and cooling. – Ed.: Annett Kühn – Berlin: Universitätsverlag der TU Berlin, 2013 ISBN 978-3-7983-2686-6 (print) ISBN 978-3-7983-2596-8 (online) urn:nbn:de:kobv:83-opus4-39458 [http://nbn ...
Demierre, Jonathan, Favrat, Daniel
core   +1 more source

CFD Based Design for Ejector Cooling System Using HFOS (1234ze(E) and 1234yf)

open access: yesEnergies, 2020
The field of computational fluid dynamics has been rekindled by recent researchers to unleash this powerful tool to predict the ejector design, as well as to analyse and improve its performance.
Anas F A Elbarghthi   +3 more
doaj   +1 more source

Performance Evaluation of an Adsorption Heat Pump System Using MSC-30/R1234yf Pair with the Impact of Thermal Masses

open access: yesApplied Sciences, 2021
In this study, we evaluated the performance of low Global Warming Potential (GWP) refrigerant R1234yf on the activated carbon (MSC-30) for adsorption heating applications.
Sangwon Seo   +4 more
doaj   +1 more source

Fundamental equation of state for R1234yf

open access: yesJournal of Physics: Conference Series, 2019
Abstract Unified fundamental equation of state for R1234yf has been developed that satisfies the scaling critical point theory. It has been demonstrated that the proposed equation of state truly represents the peculiarities of the thermodynamic surface from the qualitative and quantitative point of view: first, in the regular part of the
V A Rykov, S V Rykov, A V Sverdlov
openaire   +1 more source

CO2 with Mechanical Subcooling vs. CO2 Cascade Cycles for Medium Temperature Commercial Refrigeration Applications Thermodynamic Analysis [PDF]

open access: yes, 2017
A recent trend to spread the use of CO2 refrigeration cycles in warm regions of the world is to combine a CO2 cycle with another one using a high performance refrigerant.
Cabello López, Ramón   +4 more
core   +2 more sources

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

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