因近年來疫情蔓延與全球暖化節能減碳的議題，造成室內換氣成為大家關注的議題，也使得節能換氣設備全熱交換器，成為戶戶必須考慮安裝的節能設備，儘管它有熱回收之功能，但市面上全熱交換換氣系統之配置，還是維持所有空間同時進氣排氣之控制，也就是不管該空間有無換氣需求，或者是否會造成能源消耗的問題，整戶室內通風只有全開與全關，兩種控制。
因通風只有全開與全關的控制下，會造成在夏天室外與室內皆為高溫的狀況，會有開啟空調房間的低溫空氣，與未開空調房間的高溫空氣，於全熱交換器之迴風箱混和在一起，這樣會造成熱回收效益變差，而原來熱回收的效果，將使外部的室外高溫空氣，能先進行降溫，如此一來外氣溫度就會使空調能耗增加。
故本研究提出，利用物聯網架構來建立全熱分區控制系統，並導入於原全熱交換換氣系統裡，而在伺服器控制中分為冷氣或暖氣兩種模式，可控制每個室內分區的進迴風風閥。風閥啟閉的條件由伺服器判斷該室內分區是否需要通風(二氧化碳濃度高)、且該分區為開啟空調中(室內低溫)以及人員在該室內，則判定需要進行熱回收，就會開啟開區全熱進迴風風閥，其餘未滿足條件之室內區域，則將風閥關閉，防止其他室內高溫空氣，影響全熱回收效能。由實驗可知全熱分區控制系統，能使全熱熱回收效益更高，節約更多電力外，亦能調降一般所設定之通風風速，能使機器本身之能耗更低。

In recent years, the spread of the epidemic and the issue of energy saving and carbon reduction due to global warming have made indoor ventilation a concern for everyone, and also made the energy-saving ventilation equipment total heat exchanger a device that every household must consider installing. Although it has the function of heat recovery, the configuration of the total heat exchange ventilation system on the market still maintains the control of simultaneous intake and exhaust of all spaces, that is, regardless of whether the space has ventilation needs, or whether it will cause energy consumption problems, the whole indoor ventilation only has two controls, full open and full close.
In order to avoid the situation that in the summer when the outdoor and indoor are both high temperature and humid, and the low temperature air in the room with the air conditioner turned on, is mixed with the high temperature air in the room without the air conditioner turned on in the total heat exchanger return air box, this will reduce the original heat recovery after the heat recovery, to make the intake of the outdoor high temperature air, can be reduced first. This is contrary to the original intention of installing the total heat exchanger.
Therefore, this study proposes to use the Internet of Things architecture to establish a total heat zoning control system, and introduce it into the original total heat exchange ventilation system, and set the two modes of air conditioning and heating in the server, and then control the intake and return air valves of each indoor zone. The valve opening and closing conditions are determined by the server whether the indoor zone needs ventilation (high carbon dioxide concentration), and the zone is in the air conditioning mode (low indoor temperature) and there are people in the indoor, then it is determined that heat recovery is needed, and the zone total heat intake and return air valve will be opened, and the rest of the indoor areas that do not meet the conditions, the valve will be closed, to prevent other indoor high temperature air, affecting the total heat recovery efficiency. The experiment shows that the total heat zoning control system can make the total heat recovery efficiency higher, save more electricity, and also adjust the ventilation wind speed that is generally set, to make the energy consumption of the machine itself lower.

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