TY JOUR TI ENERGY SAVING TECHNOLOGIES OF PORT FACILITIES ON THE BASIS OF GEO-THERMAL HEAT PUMPS KW energy-saving technologies KW coastal objects KW heat pump KW geothermal well KW the tem-perature field of soil KW mathematical model JO Vestnik of Astrakhan State Technical University. Series: Marine engineering and technologies AU Saprykina, N.. AU Yakovlev, P.. PY 2017 IS PB Astrakhan State Technical University