李舒宏  单 奎  张小松

(东南大学能源与环境学院南京210096)

制冷学报.-2008，29（3）.－29～34

    摘要：对目前各种形式的热水器作了经济性分析，分析结果表明土壤源热泵热水器是最节能的一种热水器，对一个全年需要3.382×109kJ的热量来生产热水的宾馆来讲，每年仅需要1.507×105元的运行费用。对正在进行试验研究的土壤源热泵热水器装置的基本原­理和构成进行了介绍，并对其在热泵制热水的储水式和即热式两种工作模式的运行工况进行了实验研究.储水式热泵的储水箱容积为63.6L，实验过程中热泵可以在14分钟内将26.3℃的自来水加热到45℃，在28分钟内加热到60℃.即热式的性能稍低于储水式，加热同样质量的热水到45℃需要16.3分钟，到60℃需要29.4分钟。

    关键词：热工学；地源热泵；热水器；经济性分析；实验研究

Abstract Economic analysis on different types of water heaters was performed. The results show that ground source heat pump water heaters are most energy saving. The operating fare of a ground source heat pump is only 1.507×105 RMB/year for a restaurant which needs 3.382×109 kJ for water heating. The principle and construction of the ground source heat pump water heater was described, and the experiment of the two types of water heaters was conducted. The volume of the heat pump storage water heater is 63.6 L, and the heat pump can raise the water temperature from 26.3℃ to 45℃ in 14 minutes, and to 60℃ in 28 minutes. The performance of the instantaneous water heater is lower slightly. To heat the same amount of water, it needs 16.3 minutes to 45℃, and 29.4 minutes to 60℃. 12Refs. In Chinese.

Keywords Pyrology; Ground source heat pump; Water heater; Economy analysis; Experiment study