Experimental assessment of R134a and its lower GWP alternative R513A [PDF]
, 2017 Lower GWP refrigerants are essential to mitigate the impact of refrigeration systems on climate change. HFO/HFC mixtures are currently considered to replace HFCs in refrigeration and air conditioning systems.
Khodabandeh, Rahmatollah +3 more
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Thermodynamic modelling and analysis of a solar organic Rankine cycle employing thermofluids [PDF]
, 2017 This paper presents thermodynamic modelling and simulation study of a small scale saturated solar organic Rankine cycle (ORC) which consists of a stationary, flat plate solar energy collector that is utilised as a vapour generator, a vane expander, a ...
Helvaci, H.U., Khan, Zulfiqar Ahmad
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Θερμοδυναμική ανάλυση, σχεδιασμός και οικονομικά στοιχεία συστήματος συμπαραγωγής ΖΝΧ και ηλεκτρικής ενέργειας με επίπεδους ηλιακούς συλλέκτες και οργανικό κύκλο Rankine [PDF]
, 2017 Εθνικό Μετσόβιο Πολυτεχνείο--Μεταπτυχιακή Εργασία.
Mavrodimitrakis, Dimitris +1 more
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Experimental Assessment on Performance of a Heat Pump Cycle Using R32/R1234yf and R744/R32/R1234yf
, 2016 Â Â Â Â Â Hydro-fluorocarbons (HFCs) are widely used as working fluids (refrigerants) in air-conditioning and refrigeration systems. However, at the 1997 Kyoto Conference (COP3), it was determined that the product and use of HFCs should be regulated due to their high global warming potential (GWP).
Fukuda, Sho +4 more
openaire +2 more sources
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
Performance potential of ORC architectures for waste heat recovery taking into account design and environmental constraints [PDF]
, 2015 The subcritical ORC (SCORC), sometimes with addition of a recuperator, is the de facto state of the art technology in the current market. However architectural changes and operational modifications have the potential to improve the base system.
De Paepe, Michel +2 more
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Simulation study of a heat pump for simultaneous heating and cooling coupled to buildings [PDF]
, 2014 International audienceIn several situations, a heat pump for simultaneous heating and cooling (HPS) can be installed advantageously in buildings where simultaneous needs occur. Unlike a reversible heat pump that works alternatively in heating or cooling,
Bazantay, Frederic +3 more
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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
Fluids, 2023 Due to its low global warming potential (GWP) and good environmental properties, CF3I can be a suitable component of refrigerant mixtures in the field of refrigeration and air conditioning.
Md. Mahbubur Rahman +3 more
doaj +1 more source
Thermodynamic analysis of a dual-loop organic Rankine cycle (ORC) for waste heat recovery of a petrol engine [PDF]
, 2016 Huge amounts of low-grade heat energy are discharged to the environment by vehicular engines. Considering the large number of vehicles in the world, such waste energy has a great impact on our environment globally.
Bei, Chen +5 more
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