抄録
Oil mist generated in commercial kitchens has a serious influence on worker's health and may make an odor problem. Therefore many research works have been recently reported on oil mist emitted from cooking equipment such as fryers and griddles in USA (ASHRAE 745-RP Final Report etc.) and in Japan. In this paper, particle size distributions emitted from griddle and fryer were measured with two measurement systems (WPS and SMPS/APS) and the results showed that size of almost all particles was under 1μm. However oil mist includes relatively large particles over 1μm which should not be neglected when cleanness in kitchen especially in the vicinity of cooking equipment is discussed. This paper also examined the aerosol dynamics of oil mist under 1μm. The results showed gravitational settling, coagulation and Brownian diffusion had no important effect on oil mist distribution in kitchens and oil mist under 1μm can be treated as passive scalar in CFD simulation.
