A Study of the Exhaust Emission Performance of a Cartridge-gas Fueled Portable Generator

Abstract

Portable generators are very useful as an electricity source for survival during times of disaster in addition to their use at construction sites and for outdoor leisure. Because highly concentrated carbon monoxide is present in the exhaust of generators, generators should not be used indoors. However, when a disaster occurs, it is assumed that portable generators are used near disaster victims. Therefore, it is necessary to secure exhaust emissions to prevent secondary damage. This study considers the treatment of exhaust emissions from cartridge-gas fueled portable generators from this point of view. The following observations were made. 1) The permitted upper limit of the carbon monoxide concentration contained in the exhaust gas for a refuge tent was calculated by modeling. 2) The differences among the exhaust performances when using commercial cassette gas fuels with various compositions were not confirmed. 3) Exhaust emissions were improved by attaching the three way catalyst under an engine exhaust port and adjusting the Lambda.