CAJ | 학술논문

太阳能-天然气分户式供暖将家用太阳能热水系统的储热水箱串联于壁挂炉供暖回路中,利用储热水加热供暖回水.为了分析上述联合供暖系统的运行规律和能量转换过程,利用太阳辐射标准监测仪和太阳能热水系统热性能测试仪对呼和浩特市某用户进行了试验研究.实际测量了太阳能热水系统能量贡献、壁挂炉天然气消耗、供暖回水温度等性能参数,结果表明太阳能热水系统参与壁挂炉供暖互补性强、运行稳定,太阳能热水系统对供暖的有效能量贡献为3493.4MJ,节约天然气101 m3,同时联合供暖系统存在供暖回水加热储热水现象,造成一定的能量损失.该文可为分户式太阳能-天然气联合供暖的组合和运行提供参考.
태양능-천연기분호식공난장가용태양능열수계통적저열수상천련우벽괘로공난회로중,이용저열수가열공난회수.위료분석상술연합공난계통적운행규률화능량전환과정,이용태양복사표준감측의화태양능열수계통열성능측시의대호화호특시모용호진행료시험연구.실제측량료태양능열수계통능량공헌、벽괘로천연기소모、공난회수온도등성능삼수,결과표명태양능열수계통삼여벽괘로공난호보성강、운행은정,태양능열수계통대공난적유효능량공헌위3493.4MJ,절약천연기101 m3,동시연합공난계통존재공난회수가열저열수현상,조성일정적능량손실.해문가위분호식태양능-천연기연합공난적조합화운행제공삼고.
@@@@In a solar-natural gas combination heating system, hot water tanks from the household solar hot-water system were connected in a series, with the heating circuit of the household hanging wall stove. Return water from the hanging wall stove was warmed by the solar thermal-storage water. To detect the operational and energy conversion of the combined heating system, experimental research was carried out in allusion to a user in Hohhot. The data were collected by solar irradiance monitoring instruments and a solar hot-water thermal performance tester. The hanging wall stove output 55 heating water and its efficiency was 93%. The solar collector of the℃household solar hot-water system was a U-tubular, all-glass evacuated and CPC reflector board. The daylight area for the solar collector was 3m2. Results show that household solar hot-water system is a powerful supplement to the household hanging wall stove heating system. Per unit time natural gas consumption decreased when the household solar hot-water system made a contribution to heating. Daily average solar radiation was 12.8MJ/m2 and the daily average initial temperature of the solar thermal-storage water was 41.9 in the heating season.℃Total energy gains of the household solar hot-water system were 3652.7MJ. At the same time, 13.7MJ of energy were lost to the air by U-tubular. For most of the combined heating time, the return water of heating had a higher temperature than the solar thermal-storage water, which was warmed by the heating water returned by the hanging wall stove. The heat exchange in this process was stored in the hot water tank for participation in heating in the future. There was no energy loss in the heat exchange, but the heat was produced by the hanging wall stove, which led to energy loss in the energy conversion. Unexpectedly, there were 145.6MJ energy loss caused by the alliance of household solar heat-water system and the household hanging wall stove. Effective energy levels of the household solar hot-water system for heating are 3493.4MJ, which are worth saving natural gas 101m3. Through practical operation of this combined heating system, it can be seen that the household solar hot-water system is a strong assistant to the household hanging wall stove when natural gas is in short or no supply and the combined heating system runs stably. We suggest the household hanging wall stove users who have a household solar hot-water system utilize the solar-natural gas combined heating system. However, it is not economic to the independent wall hanging stove-heating users who have no solar hot-water system to invest in it.