Nouvelles compositions de frigorigènes à faible potentiel de réchauffement planétaire comme substitut au R-134a pour des systèmes frigorifiques et de conditionnement d’air fixes.
Novel reduced GWP refrigerant compositions to replace R-134a in stationary air-conditioning and refrigeration.
Numéro : pap. 2332
Auteurs : ABBAS L., KIM S., SCHULTZ K.
Résumé
Hydrofluorocarbons (HFCs) have replaced chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons (HCFCs) as non-ozone depleting fluids in many applications, including as refrigerants, solvents, aerosols, and blowing agents for insulating foams. However, some HFCs have relatively high Global Warming Potential (GWP) and are coming under closer scrutiny due to the increasing concern over global climate change. The focus now is on the search for the next generation of environmentally sustainable working fluids with negligible direct environmental impact in terms of both ozone depletion and global warming potential. Development of low-GWP options should be balanced with respect to safety, performance, ease of use, and energy efficiency. Indeed, greenhouse gas emissions come not only from direct emissions but also largely from indirect sources based on energy consumption. It is therefore important that energy efficiency remain a primary consideration when implementing low-GWP solutions, as replacing a high-GWP fluid with a lower GWP, but less efficient option may actually increase greenhouse gas emissions, thereby degrading the overall Life Cycle Climate Performance (LCCP). This paper introduces ARM-42, a near-azeotropic, low-GWP refrigerant to replace R-134a. The thermodynamic properties of ARM-42 make it a very close match to R-134a from both a performance, capacity, and efficiency as well as operating pressures standpoint. Single Tube Heat Transfer testing confirmed ARM-42’s potential to replace R-134a.
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Détails
- Titre original : Novel reduced GWP refrigerant compositions to replace R-134a in stationary air-conditioning and refrigeration.
- Identifiant de la fiche : 30018978
- Langues : Anglais
- Source : 2016 Purdue Conferences. 16th International Refrigeration and Air-Conditioning Conference at Purdue.
- Date d'édition : 11/07/2016
Liens
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Indexation
-
Replacements for R410A with GWPs less than 300.
- Auteurs : SCHULTZ K.
- Date : 24/08/2019
- Langues : Anglais
- Source : Proceedings of the 25th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
- Formats : PDF
Voir la fiche
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Performance and capacity comparison of two new ...
- Auteurs : BISWAS A., CREMASCHI L.
- Date : 16/07/2012
- Langues : Anglais
- Source : 2012 Purdue Conferences. 14th International Refrigeration and Air-Conditioning Conference at Purdue.
- Formats : PDF
Voir la fiche
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R32 and HFOs as low-GWP refrigerants for air co...
- Auteurs : PHAM H., RAJENDRAN R.
- Date : 16/07/2012
- Langues : Anglais
- Source : 2012 Purdue Conferences. 14th International Refrigeration and Air-Conditioning Conference at Purdue.
- Formats : PDF
Voir la fiche
-
Le D4Yb comme substitut au frigorigène R134a.
- Auteurs : ARIMOTO H.
- Date : 04/2016
- Langues : Japonais
- Source : Refrigeration - vol. 91 - n. 1062
Voir la fiche
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Reduced GWP refrigerants for residential and co...
- Auteurs : ZOU Y., SETHI A., YANA MOTTA S.
- Date : 09/2018
- Langues : Anglais
- Source : 1st IIR international conference on the application of HFO refrigerants, Birmingham, September 2-5 2018.
- Formats : PDF
Voir la fiche