Integration of ground energy systems for low-carbon heating and cooling of buildings
Integration of ground energy systems for low-carbon heating and cooling of buildings
Ground source heating and cooling is well established in many parts of the world providing a highly efficient source of low carbon heating and cooling. Given its efficiency, it is more economical to run a heat pump almost continually maintaining the minimum base heat/cool load, than it is to install a much bigger heat pump capable of reaching peak load for only short durations. For this reason, a heat pump system is most efficiently operated when integrated with other traditional or alternative energy sources to produce a hybrid system. This approach can be further enhanced by the application of other technologies, such as energy from low-carbon waste heat which can significantly improve the efficiency of heat pumps. Similarly, capturing cold night air in winter can be used to cool the ground to cool buildings in the summer in hot cities such as Lisbon. Two systems are presented to demonstrate the effectiveness of using the ground to store heat and cool energy to highlight the practical issues which may be encountered during design and installation.
Stephen D. Thomas; A. Vieira; C. Pinto; Jose Lapa
18th European Conference on Soil Mechanics and Geotechnical Engineering (ECSMGE2024)
E - Environment, water and energy
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