Abstract
Though the independent ground source absorption heat pump (GSAHP) is advantageous over the conventional ground source electrical heat pump (GSEHP) in extremely cold regions, some problems remain for different GSAHP applications in various climate zones. To solve these problems, the basic principles for both heat accumulation and cold accumulation occasions are established to achieve soil thermal balance and improve system performance. Based on these basic principles, we propose a series of hybrid GSAHP systems: (1) GSAHP integrated with borehole free cooling, (2) GSAHP integrated with an auxiliary cooling tower, (3) GSAHP integrated with waste heat recovery, and (4) GSAHP integrated with a conventional GSEHP. The system configurations and working principles are introduced, and the system models are built for long-term simulations. The results indicate that all propsed hybrid GSAHP systems perform well in some specific occasions. We should choose a suitable hybrid GSAHP to accommodate a certain application condition. Compared to the conventional GSEHP and independent GSAHP, the hybrid GSAHPs show better thermal balance, more stable soil temperature, higher energy efficiency, and better system economy. They can further extend the applicability of the novel GSAHP technology.
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Wu, W., Li, X., You, T. (2020). Hybrid Ground Source Absorption Heat Pump System. In: Absorption Heating Technologies. Springer, Singapore. https://doi.org/10.1007/978-981-15-0470-9_6
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DOI: https://doi.org/10.1007/978-981-15-0470-9_6
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