Iji nyochaa n'?z? ziri ezi uru nchekwa ike nke Ihe mkpuchi ak?r?ngwa Jaket?, ule a na-anabata "usoro n'ihu na mgbe at?nyere usoro": N'okpuru ebe a na-ar? ?r? na ?n?d? ak?r?ngwa (ar? ?r? okpom?k?, ibu, ambient okpom?k?) zuru ezu na-agbanwe agbanwe, ?kachamara ngwá ?r? d? ka elu-nkenke okpom?k? sens?, okpom?k? flux mita, na ike mita na-etinye n'?r? iji nyochaa ak?r?ngwa n'elu okpom?k? na okpom?k? dissipation ?nw? n'otu n'otu tupu na mgbe echichi nke jaket?. Ise ihe onyonyo na sa?t? d? ka ihe at?: N'?n?d? nnwale a, mgbe valv? ak?r?ngwa enwegh? mkpuchi mkpuchi mkpuchi, elu okpom?k? ha na-aga n'ihu na-ekpochap? okpom?k? n'èzí, na-ebute okpom?k? na-ar? ?r? ruo 120 ℃-200 ℃. Mgbe etinyere jaket mkpuchi ah?, a na-egbochi mgbasa ike ?k? nke ?ma, na ?n?d? okpom?k? gburugburu ak?r?ngwa belatara ozugbo na ihe d?ka 35 ℃-45 ℃. -- Mgbe etinyere mkpuchi mkpuchi mkpuchi na pipeline na valves na ?l? ?r? nchacha, a na-ebelata okpom?k? ah? n'?z? d? ukwuu na gburugburu 40 ℃, na-ezute ?kp?r? okpom?k? ch?r? maka ak?r?ngwa. Usoro mkpuchi ah? enwetala nsonaaz? d? ?r?ba ama, na-ah? n'?z? d? irè n'?r? ?r? nke ak?r?ngwa.