邻室传热相关问题的研究

Heat Transfer Between Neighboring Walls

由于供热计量收费,用户能够自主调节室温,用户之间室温会存在差异,这就导致存在邻室传热现象.所以确定房间设计热负荷时,就应该考虑邻室传热.为此,通过建立传热数学模型和运用概率统计方法,研究邻室传热的设计计算方法及相关因素,推导出邻室设计温差和邻室设计传热量的计算公式.结果表明,当用户采暖概率越小,邻室设计温差越大,并且概率小于0.7时,邻室设计温差小于5℃;分户墙保温越好,邻室设计温差越大,但对邻室设计温差影响不大;建筑设计热负荷越大,邻室设计温差越大.

Because the charge for heat is payed according to the total number used, users can adjust room temperature independently. Therefore, room temperature will differ, which causes heat transfer between neighbo- ring walls （HTNW）. So, HTNW should be considered when calculating designed heating load for heating terminals choosed. By establishing the heat transfer model and using the probability and statistic method, the calculating method and relative factors of the HTNW are studied. The formulae of the designed temperature differenee and designed heating load for the HTNW are derived. The results show that the less the heating probability of user,the larger the designed temperature difference of the HTNW, and the designed temperature difference of the HTNW will be less than 5 ℃ when the probability is less than 0.7. The better the heat insulating ability of the neighboring walls and the designed heating load of the building, the larger the designed temperature differenee of the HTNW;but heat insulating ability of the neighboring walls doesn＇t affect the designed temperature difference of the HTNW strikingly.