Cooling Effect on A Portable Diesel Engine Generator Set by the Inlet and Outlet Gates of An Enclosure

Portable diesel engine generator sets are used at offsite power grid or for emergency power. Therefore, a protective device called an enclosure is necessary for safety as well as protection of the generation device. However, the temperature within the enclosure must be within a limited range so that there is no problem in the operation of electronic devices. In this study, an enclosure design for a 150 kW generation set was conducted through a numerical analysis. Eight inlets were applied on the side, and one outlet was installed on the top. In conclusion, the air sucked in by the radiator fan could dissipate the heat generated from the generator, engine, and muffler. Therefore, the temperature surround the electronic control box was maintained below 10 K, and the role of the air drawn in each intake was also investigated.