Igwe ọkụ na-emepụta gas na-ezo aka na reactor eji emepụta gas, gas mmiri na gas nke ọkara mmiri.Ahụ ọkụ ahụ bụ cylindrical, a na-eji efere ígwè ma ọ bụ brik mee shei dị n'èzí, nke a na-eji brik na-emegharị emegharị, ma nweekwa ngwa nri, ọkpọkọ gbawara agbawa na ọkpọkọ gas.Dị ka ihe owuwu si dị, ọ nwere ike kewaa n'ime igwe generator, nzọụkwụ generator, generator na-atụgharị aro na abụọ-ogbo generator.Dị ka usoro ahụ si dị, enwere ike kewaa ya na akwa akwa ma ọ bụ ihe na-emepụta gas gas.