TY JOUR TI INCREASE IN THE RELIABILITY OF GAS-TUBE HORIZONTAL AUXILIARY STEAM BOILER BY MEANS OF FORCED WATER CIRCULATION KW gas-tube auxiliary boiler KW temperature field KW free convection KW forced water circulation KW temperature distribution equalization JO Vestnik of Astrakhan State Technical University. Series: Marine engineering and technologies AU Chichurin, A.. AU Shuraev, O.. PY 2015 IS 2015 PB Astrakhan State Technical University