Engineering
5 years ago

CO2 heat pump outperforms in providing efficient heating for buildings

Energy and Buildings
Experimental characterization of a transcritical CO2 direct expansion ground source heat pump for heating applications
Arash Bastani, Parham Eslami-Nejad, Messaoud Badache, Alain Nguyen

Paper Summary

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A study tested a CO2 ground source heat pump for heating buildings. The pump performed best in applications with lower temperature demands, like radiant floor heating. It had a high heating capacity and efficiency, with a COP of around 4. The number of boreholes affected the system's performance, suggesting an optimal number for maximum heating capacity.