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概述考虑通过外围结构不严密处及经常开关的孔口所进入室内的室外空气,是设计采暖通风装置时最困难的任务之一。在计算采暖系统时,为了确定使空气加热所消耗的热量,以及正确地确定所需要的放热器放热面积,必须要考虑侵入的空气量,在计算通风系统时,这种考虑也有着巨大的意义.因为侵入室内的室外空气造成了空气的交换,所以在某种情况下应该考虑把它作为可以降低人工通风所保证之换气量的有利因素.在许多情况下,也应该考虑把它作为会增加采暖所消耗之热量的不利因素.
Overview Taking into account the outdoor air entering the room through a tightly located and often switched orifice in the peripheral structure is one of the most difficult tasks in designing a heating ventilation unit. When calculating the heating system, in order to determine the amount of heat that is used to heat the air and to correctly determine the required area of the radiator’s heat release, the amount of air that must be intruded must be taken into consideration. This consideration is also huge when calculating the ventilation system. The significance is that because the outdoor air intruding into the room causes the exchange of air, it should be considered as a favorable factor that can reduce the amount of ventilation that artificial ventilation guarantees under certain circumstances. In many cases, it should also be considered. As an unfavorable factor that will increase the calories consumed by heating.