%0 Journal Article %T SIMULATION MODEL OF HEAT PUMP EQUIPMENT OPERATION IN HEATING SYSTEM IN THE CHELYABINSK REGION CONDITIONS %A Nizamutdinov, R.Z. %A Ptashkina-Girina, O.S. %A Doskenov, A.K. %K heat pump, low-potential heat energy, direct field experiment, simulation modeling %J Bulletin of KSAU %D 2013 %N %P 3 %I Krasnoyarsk State Agrarian University