publication . Other literature type . 2016

HFO1234ze(E) And HFC134a Flow Boiling Inside a 4mm Horizontal Smooth Tube

Longo, Giovanni A.; Mancin, Simone; Righetti, Giulia; Zilio, Claudio;
Open Access
  • Published: 01 Jan 2016
  • Publisher: Purdue University
  • Country: United States
Abstract
Nowadays, the substitution of HFC134a with low GWP refrigerants is one of the most important challenge for refrigeration and air conditioning. The possible substitutes include natural refrigerants, such as HC600 (Butane) and HC600a (Isobutane), and also synthetic refrigerants, such as HFO1234yf and HFO1234ze(E). The HC refrigerants exhibit very low GWP, 3 and 4 HC600a and HC600 respectively, good thermodynamic and transport properties, and pressure and volumetric performance very similar to HFC134a. The major drawback of HC refrigerants is their high flammability, being classified in class A3 according to ASHRAE classification. Also the HFO refrigerants present ...
Subjects
free text keywords: Boiling, Tube, HFO
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Other literature type . 2016
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