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恒温恒湿工程设计除须掌握温、湿度波幅外,还应了解对温度场及时间的要求。设计时应针对具体条件,进行热工计算,确定送回风方式以及其它相应措施,这对于节约投资是至关重要的。一、围护结构的设计结构的热工性能,不仅取决于其厚度,而且涉及到墙体结构形式,施工质量和材料性能等。单纯加厚墙体,固然可增大热阻,提高热惰性,但结构的蓄热也必然随之增多,夜间向室内散发的热量也相应加大。资料表明,在同等环境条件下,早晨5时墙体传入室内的热量,一砖墙是半砖墙的3.2倍。这对于要求恒温的房间是很不利的。
In addition to the temperature and humidity amplitudes, the constant temperature and humidity engineering design should also understand the requirements for the temperature field and time. The design should be based on specific conditions, thermal calculations, to determine the return air way and other appropriate measures, which is crucial for saving investment. First, the thermal performance of the design structure of the envelope structure depends not only on its thickness but also on the wall structure, construction quality and material properties. Simply thickening the wall, of course, can increase thermal resistance, increase thermal inertia, but the structure of the heat storage is bound to increase, the amount of heat emitted to the room at night also increased. According to the data, under the same environmental conditions, the temperature of the wall entering the room at 5 o’clock in the morning is 3.2 times that of a half-brick wall. This is detrimental to a room that requires constant temperature.