IMPROVEMENT OF THERMAL ENVIRONMENT AND PREVENTION OF DEW CONDENSATION IN A FOOD FACTORY

In a food factory, it is important to keep working environment clean. Therefore, HACCP was introduced to Japanese food company in 2018 and all food factories in Japan need to achieve an appropriate environment. In this study, CFD simulation was used to compare the thermal environment, air conditioning load, and dew condensation between conventional air conditioning systems and ceiling-supplied displacement ventilation systems. Furthermore, in ceiling-supplied displacement ventilation systems, appropriate ventilation volume and insulation performance of the exterior skin was examined from the viewpoint of dew condensation suppression.