Abstract
In the third booming of the plant factory in Japan, the number of plant factory increases with the increase of the number of enterprises that participate into this business in the last several years. The environmental control technology, which mainly consists of lighting and air-conditioning, is very important for the plant factory. However, in many plant factories the package type air-conditioner was adopted mainly due to the initial cost reduction. This study will show the current situations, such as the requirements to the air-conditioning, and the load profile of the air-conditioning system in the plant factory. Also, by analyzing the measured temperature and humidity data, to identify the problems and suggest the solutions.
