00735naa#a2200217#i#450# EN\\bibl\82683 20241221213427.6 2782-1919 20211227b2021####ek#y0engy0150####ca ENG RU Approximate calculation of a theoretical cycle of a vapor-compression freon loop in an air heat pump Journal article Yaroslavl Yaroslavl State Technical University 2021 10 с. Journal article local эндотермические. 62-971.4 ENG Fedosov Sergey Viktorovich Fedoseev Vadim Nikolaevich Loginova Svetlana Andreevna Zaitseva Irina Aleksandrovna comincon.ru