期刊
ENERGIES
卷 9, 期 4, 页码 -出版社
MDPI
DOI: 10.3390/en9040228
关键词
geothermal energy; GCHP; radiator heating; radiant floor heating; energy efficiency; simulation models
资金
- Romanian National Authority for Scientific Research, CNDI-UEFISCDI (National Council for Development and Innovation-Executive Agency for Higher Education, Research, Development and Innovation Funding) [PN-II-PT-PCCA-2011-3.2-1214, 74/2012]
A ground-coupled heat pump (GCHP) system used to provide the space heating for an office room is a renewable, high performance technology. This paper discusses vapour compression-based HP systems, briefly describing the thermodynamic cycle calculations, as well as the coefficient of performance (COP) and CO2 emissions of a HP with an electro-compressor and compares different heating systems in terms of energy consumption, thermal comfort and environmental impact. It is focused on an experimental study performed to test the energy efficiency of the radiator or radiant floor heating system for an office room connected to a GCHP. The main performance parameters (COP and CO2 emissions) are obtained for one month of operation of the GCHP system, and a comparative analysis of these parameters is presented. Additionally, two numerical simulation models of useful thermal energy and the system COP in heating mode are developed using the Transient Systems Simulation (TRNSYS) software. Finally, the simulations obtained from TRNSYS software are analysed and compared to the experimental data, showing good agreement and thus validating the simulation models.
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