摘要
项目规摸（地埋管规摸）对土壤源热泵系统土壤全年热平衡问题影响至关重要，因此本文针对不同规模、不同冷热负荷比情况下地埋管土壤温度变化进行了研究分析，结果表明，当建筑全年累计冷热负荷比从1：1变化至4：1时，地埋管区域土壤10年累计温升从4．18℃升高到9．11℃,影响较大；对于5～10口井的小规模建筑，即使当建筑累计冷热负荷比达到4：1时，热平衡问题都可以忽略不计，但是当地埋管规摸增至20口管井时，热平衡问题必须要予以重视。最后，本文针对小规模建筑应用土壤源热泵系统时如何缓解并解决土壤热平衡问题进行了研究，为土壤源热泵系统的研究和应用提供了理论支持。
Project scale （GHP scale） has a very important effect to annual heat balance of ground-coupled heat pump system, therefore, the article analyses the ground temperature variation from such aspects as project scale and different cool and heat load ratio. Results show that when the building annual accumulative cool and heat load ratio change from1： 1 to 4：1, the storage volume＇ s soil temperature rise from 4.18℃ to 9.11℃ in 10 years running, which rises a lot. Whereas, for the small-scale project such as 5-10 well, the heat balance problem can be neglected, even though the building annual accumulative cool and heat load ratio reach 4：1. But the heat balance problem can＇t be neglected when the project scale rise to 20 well. At last, the paper discusses how to ease and solve the ground heat balance problem when ground ground-coupled heat pump system is used in the small-scale project, which is helpful to the further study and reasonable application of GCHP system.
出处
《建筑热能通风空调》
2013年第6期5-9,共5页
Building Energy & Environment
基金
国家自然科学基金项目(No.50806052)
北京市重点实验室研究基金资助课题
