Multi-criteria (thermodynamic, economic and environmental) analysis of possible design options for residential heating split systems working with low GWP refrigerants

•Multi-objective thermo-economic and environmental optimization of 5 kW residential space heating split system.•Comparison of alternative low GWP refrigerants in terms of performance, costs (set-up and total ones) and LCCP.•Current compressor and heat exchangers performance data and costs used. An a...

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Bibliographic Details
Published in:International journal of refrigeration 2018-03, Vol.87, p.131-153
Main Authors: Botticella, F., de Rossi, F., Mauro, A.W., Vanoli, G.P., Viscito, L.
Format: Article
Language:English
Subjects:
Coefficient de performance (COP)
Compressors
Configuration management
Configurations
COP
Costs
Design analysis
Economic analysis
Frigorigènes à faible GWP
Heat exchangers
Heat pumps
HVAC
LCCP
Low-GWP refrigerants
Multiple criterion
Optimisation
Optimization
Pompes à chaleur
Refrigerants
Refrigeration
Space heating
Thermodynamics
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Summary:•Multi-objective thermo-economic and environmental optimization of 5 kW residential space heating split system.•Comparison of alternative low GWP refrigerants in terms of performance, costs (set-up and total ones) and LCCP.•Current compressor and heat exchangers performance data and costs used. An analysis of design configurations is proposed for a 5 kW residential space heating split system comparing several low GWP refrigerants (R32, R290, R1234yf, R1234ze, XL41, XL55) as potential alternatives to the most common refrigerants actually used (R410A, R407C, R134a). By means of an ad-hoc model, the system performance has been estimated for several geometrical configurations among those possible according to the current compressor and heat exchangers technology. The configurations complying with geometric and thermodynamic constraints are discussed in terms of opposing criteria: economic (set-up and total costs), thermodynamic (COP) and environmental ones (LCCP). With R32 it is possible to define design configurations that are able to reach the best energetic performances for fixed set-up costs. In the range of low set-up costs solutions, R32 and R410A design options are able to work with the same performance. Particularly, R32 can reach the minimum LCCP value as propane with 15% lower total costs.
ISSN:0140-7007
1879-2081
DOI:10.1016/j.ijrefrig.2017.10.030