Abstract

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.

Highlights

  • Buildings are indisputably considered as one of the largest energy consuming sectors

  • It is focused of an experimental study performed to test the energy efficiency of the radiator or radiant floor heating system for an office room connected to a ground-coupled heat pump (GCHP)

  • A GCHP system consists of a reversible vapour-compression cycle that is linked to a ground heat exchanger (GHE) buried in the soil

Read more

Summary

Introduction

Buildings are indisputably considered as one of the largest energy consuming sectors. This paper discusses vapour compression-based HP systems briefly describing the calculation of the corresponding thermodynamic cycle, as well as the coefficient of performance (COP) and CO2 emissions of a HP with electro-compressor and compares different heating systems in terms of energy consumption, thermal comfort and environmental impact. It is focused of 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. Systems Simulation (TRNSYS) software are performed along 8760 h using Meteonorm weather data and compared to experimental measurements to validate the simulation models

Thermodynamic Cycle
Coefficient of Performance
Profitability and Capabilities of HP
Calculation of CO2 Emission
Radiator Heating System
Radiant Heating Systems
Terminal
Description of the Office Room
Performance
October to
Borehole Heat Exchanger
GCHP Data Acquisition System
Heating Systems
Schematic
Measuring Apparatus
Comparison between Energy Performances of Systems
Recorded
Experimental
Uncertainty Analysis
Thermal Comfort Assessment
Simulation of Thermal
10. Schematic of the system model inTRNSYS
Conclusions

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.