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Charge reduction for a R22 split air conditioner operated with R290 under DT and ETB conditions.
Number: pap. 1021
Author(s) : SARAVANAN A. L., MOHAN LAL D., DURAISAMY A.
Summary
As per Montreal Protocol R22 is to be phased out by 2030 AD in all Article 5 countries. Propane (R290) is a viable alternative for R22, but it is flammable. Hence attempts are made to reduce the charge quantity. This paper presents an experimental performance study of a split air conditioner with propane, as a substitute for R22. A split air conditioner of 5.25 kW capacity has been tested for energy efficiency in a Psychrometric test room under standard test conditions as per BIS-1391-1992 Part 2. Domestic test & Export Test B conditions were considered for this study. The results show that as the condenser tube diameter is reduced from 12.7 mm to 6.35mm, the optimum charge got reduced to 320 g and 310 g for DT & ETB conditions respectively.
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Details
- Original title: Charge reduction for a R22 split air conditioner operated with R290 under DT and ETB conditions.
- Record ID : 30019047
- Languages: English
- Source: 12th IIR Gustav Lorentzen Conference on Natural Refrigerants (GL2016). Proceedings. Édimbourg, United Kingdom, August 21st-24th 2016.
- Publication date: 2016/08/21
- DOI: http://dx.doi.org/10.18462/iir.gl.2016.1021
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Indexing
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Themes:
Comfort air conditioning;
Hydrocarbons - Keywords: Split system; Safety; R290; R22; Performance; Air conditioning; Refrigerant charge
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