Performance Evaluation and Comparison Between Conventional U-Tube and New Kelix Tube-in-Tube Ground Heat Exchangers and Between Regular Grout and Supergrout

传统U型管与新型Kelix管套管式地热交换器、普通灌浆与超级灌浆的性能评估与比较

• 批准号: 445979-2012
• 负责人: Leong, WeyHerng
• 金额: $ 1.82万
• 依托单位: Ryerson University
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 财政年份: 2012
• 资助国家: 加拿大
• 起止时间: 2012-01-01 至 2013-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=511171
• 关键词: Performance; Evaluation; Comparison; Between; Conventional

The geothermal heat pump, also known as the ground source heat pump (GSHP), is a highly efficient renewable energy technology that is gaining wide acceptance for both residential and commercial buildings. GSHPs are used for space heating and cooling, as well as water heating. The technology relies on the fact that the Earth (beneath the surface) remains at a relatively constant temperature throughout the year, warmer than the air above it during the winter and cooler in the summer. The GSHP takes advantage of this by transferring heat stored in the Earth or in ground water into a building during the winter, and transferring it out of the building and back into the ground during the summer. Using the Earth as a heat source/sink, a series of pipes, commonly called a "loop," is buried in the ground near the building to be conditioned. It usually circulates an antifreeze solution fluid that absorbs heat from, or relinquishes heat to, the surrounding soil, depending on whether the fluid is colder or warmer than the soil. If a ground heat exchanger (GHE) can better transfer heat between the heat pump and the ground, the overall performance of the GSHP would be higher.

地源热泵，也称为地源热泵（GSHP），是一种高效的可再生能源技术，正在获得住宅和商业建筑的广泛认可。地源热泵用于空间供暖和制冷以及水加热。该技术依赖于这样一个事实：地球（地表以下）全年保持相对恒定的温度，冬季比其上方的空气温暖，夏季比其上方的空气凉爽。地源热泵利用这一点，在冬季将储存在地球或地下水中的热量转移到建筑物中，并在夏季将其从建筑物转移回地下。利用地球作为热源/散热器，一系列管道（通常称为“环路”）埋在待调节建筑物附近的地下。它通常循环一种防冻溶液液体，该液体从周围土壤吸收热量或向周围土壤释放热量，具体取决于液体比土壤冷还是热。如果地热交换器（GHE）能够更好地在热泵和地面之间传递热量，那么地源热泵的整体性能将会更高。