TY JOUR TI HEAT DIAGRAM OF HEAT SUPPLY SOURCE WITH HEAT PUMPING UNIT USING MINE WATER KW heat pumping unit KW boiler KW mine water KW heat exchanger KW temperature KW heat supply JO Vestnik of Astrakhan State Technical University AU Gorozhankin, S.. AU Vybornov, D.. AU Monakh, S.. PY 2013 IS 2013 PB Astrakhan State Technical University