TY JOUR TI INFLUENCE OF FUEL TYPE ON ENERGY EFFICIENCY OF A GAS CARRIER POWER PLANT KW energy efficiency operational index KW energy audit KW ship energy efficiency management plan KW heavy tonnage gas carrier KW ship power plant JO Vestnik of Astrakhan State Technical University. Series: Marine engineering and technologies AU Ermolaev, V.. AU Abacharaev, I.. AU Bukin, V.. AU Pokusaev, M.. PY 2019 IS PB Astrakhan State Technical University