Geothermics ( IF 3.9 ) Pub Date : 2021-07-09 , DOI: 10.1016/j.geothermics.2021.102172 Mohamad Ali Jaafar 1 , Charles Maragna 1
A comprehensive numerical investigation of long-term operation of Ground-Sourced Heat Pumps through Borehole Heat Exchangers is presented. Thermal fluxes between systems are analyzed through a semi-analytical method based on line source models. Operation points of geothermal and backup systems are determined by an hourly-based non-linear constrained optimization. Simulations of a 12-buildings neighborhood demonstrated that middle-buildings experience higher electrical consumptions than corner-buildings. Thermal interactions could be interferences or synergies decreasing or increasing GSHP performances, respectively, depending mainly on heating/cooling balance. Parametrical study showed that low Darcy velocities, insulated ground surface, shorter heat-exchangers, and denser and compact neighborhoods enhance thermal interactions impacts.
中文翻译:
社区层面地源热泵长期运行的数值研究:关注热相互作用和电力消耗
介绍了地源热泵通过钻孔换热器长期运行的综合数值研究。通过基于线源模型的半解析方法分析系统之间的热通量。地热和备用系统的运行点由基于小时的非线性约束优化确定。对 12 栋建筑的社区模拟表明,中间建筑的耗电量高于角落建筑。热相互作用可能是干扰或协同作用,分别降低或提高 GSHP 性能,主要取决于加热/冷却平衡。参数研究表明,低达西速度、绝缘地面、较短的换热器以及更密集和紧凑的邻域会增强热相互作用的影响。