| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To clear a required ventilation amount, eliminate temperature unevenness within the store, suppress the load of an air conditioner, and suppress the load of refrigerant/freezing showcases within the store by controlling an air sending amount of a ventilation fan to achieve a proper air sending amount considering the situation of a difference from a set temperature or an external air temperature or a heat load for each area, regarding ventilation in one room such as a convenience store. <P>SOLUTION: A space under the roof connected to the inside of a store constitutes an air exhaust duct, and ventilating holes leading to the air exhaust duct are provided at least on the ceiling within the store. For lower portions of showcases installed within the store, ventilating holes leading to the exhaust duct are also provided outside of the store, and a ventilation fan is mounted on the wall face of the upper part near a window of the store. A ratio between an air exhaust amount via the air exhaust duct and an air exhaust amount via the ventilation fan is controlled based on a determination using at least a room temperature within the store. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
