Ngwaahịa a gụnyere okpu S60 screw, nkwonkwo cone abụọ tụgharịrị, nkwonkwo pagoda na nzacha mmiri mmiri n'efu. Ọ bụ ngwaọrụ nchịkọta nke emepụtara maka ọgwụgwọ mmiri mmiri mkpofu ụlọ nyocha. Ọ nwere arụmọrụ mkpuchi siri ike, nwere ike igbochi evaporation ihe mgbaze, ma mee ka ihe mgbaze kwụsị. Ọrụ, ọ nwekwara ike ihicha gas na-emerụ ahụ mmadụ ma chebe nchekwa nke ndị ọrụ.