Journal ArticleDOI
Low GWP refrigerants as alternatives to HCFC-22 in room air conditioners
Reads0
Chats0
TLDR
In this paper, simulated and experimental performance evaluations of a few selected low global warming potential refrigerants as alternatives to HCFC-22 for room air conditioners are presented, and the performance of each alternative has been evaluated by optimizing heat exchangers, compressors, and capillary for the maximum EERAC.Abstract:
This article presents simulated and experimental performance evaluations of a few selected low global warming potential refrigerants as alternatives to HCFC-22 for room air conditioners. The alternatives considered are HC-290, HC-1270, HFC-161, HFC-32, and HFC-1234yf. The performance of each alternative has been evaluated by optimizing heat exchangers, compressors, and capillary for the maximum EERAC. Experiments were also conducted as per IS 1391 Part 1 for a few alternatives, including HC-290, HFC-161, and HFC-32. HC-290 and HFC-32 gave an EERAC of 3.7. The experiments indicate that HC-290 offers the best performance, and room air conditioners that have a capacity of less than 5.2 kW can meet the exiting safety standards. The discharge temperatures of HFC-32 are relatively high and need special attention in the compressor design. HFC-161 is also a potential ultra-low global warming potential alternative to HCFC-22, once its safety classification is established.read more
Citations
More filters
Journal ArticleDOI
Applications of refrigerant R1234yf in heating, air conditioning and refrigeration systems: A decade of researches
TL;DR: HFC refrigerants as R134a, R404A, R407C and R410A are commonly used in heating, air conditioning and refrigeration (HACR) systems since Kyoto protocol However, they are phased-out due to their high global warming potential as discussed by the authors.
Journal ArticleDOI
CFD simulation of HC-290 leakage from a split type room air conditioner:
TL;DR: The phase-down schedules in Kigali Amendment, it is imperative to use HC-290 as mentioned in this paper, however, there are concerns about its flamma, which is one of the alternatives to HCFC22 in room air conditioners.
Journal ArticleDOI
Experimental Investigation on the Performance of Condenser for Charge Reduction of HC-290 in a Split Air-Conditioning System
TL;DR: In this paper, the authors proposed a promising alternative for HCFC-22, which is an ozone depleting substance under Montreal Protocol, but HC-290 charge is to be reduced because of its flammability.
Journal ArticleDOI
Performance simulation of HFC-161 as an alternative refrigerant to HCFC-22 for room air conditioner
TL;DR: In this paper, a baseline test was conducted on a 5.2-kW air conditioner originally designed for HCFC-22 in psychrometric lab as per Indian standard IS 1391 part 1. Simulation study concluded that the HFC-161 is an energy efficient and climate friendly alternative since it has zero ODP (ozone depletion potential) and ultra low GWP of 12 except its flammability issue.
Journal ArticleDOI
Designing a clean and efficient air conditioner with AI intervention to optimize energy-exergy interplay
TL;DR: This study investigates eco-friendly alternatives to the refrigerants R410A and R22 through a comprehensive analysis of salient parameters such as coefficient of performance (COP), volumetric cooling capacity, and exergetic efficiency (ηex) featuring a sustainably retrofitted vapor compression based A/C.
References
More filters
Journal ArticleDOI
Refrigerant charge in refrigerating systems and strategies of charge reduction
TL;DR: In this paper, the authors present a review of the charge studies in a refrigerating plant (methodologies of charge measurement, void fraction correlations and characteristic values for various technologies) and evaluate the influence of the refrigerant charge on the coefficient of performance (COP) and on the cooling capacity.
Journal ArticleDOI
Performance assessment of HC-290 as a drop-in substitute to HCFC-22 in a window air conditioner.
TL;DR: In this paper, an experimental performance study of a window air conditioner with propane (HC-290), a natural refrigerant, as a drop-in substitute to HCFC-22 is presented.
Journal ArticleDOI
Performance of a split-type air conditioner matched with coiled adiabatic capillary tubes using HCFC22 and HC290
Guobing Zhou,Yufeng Zhang +1 more
TL;DR: In this article, a split-type air conditioner matching with different coiled adiabatic capillary tubes for HCFC22 and HC290 was investigated in a room-type calorimeter.
Journal ArticleDOI
An experimental investigation of refrigerant mixture R32/R290 as drop-in replacement for HFC410A in household air conditioners.
TL;DR: In this article, the authors investigated the performance of R32/R290 and R410A in household air conditioners and found that the refrigerant charge amount of the R32 and R290 is reduced by 30.0% and 35.0%, respectively.
Journal ArticleDOI
Simulated and experimental performance of split packaged air conditioner using refrigerant HC-290 as a substitute for HCFC-22
TL;DR: In this article, the use of propane (HC-290) as a safe and energy efficient alternative to HCFC-22 in a typical split air conditioner with nominal cooling capacities up to 5.1kW was discussed.