Energy Recovery From Boiler Blowdown Water at Edible Oil Refine

Authors- Mr. K. Anil Kumar, Kapavarapu Uma Mahesh, Abbireddy Sai, Gajji Uma Maheswara Rao, Jayavarapu Naga Rajesh

Abstract-– Blow down water is the part of water that is purposely drained during the boiler operation to limit the level of impurities in boiler water to an acceptable level. So it is contains large quantity of heat energy. The aim of the present work is to improve energy efficiency of steam boilers in the oil refinery company. This aim has been achieved through designed and manufactured of a heat exchanger consists of a shell and tube unit to recover heat from surface blow down water and reducing indirect losses. The blow down water (hot fluid) is supplied to the heat exchanger at atmospheric pressure by passing it through the tube side and the feed water in the Shell side. These were done as counter flow. A flow control valve is used to control the flow rate of hot blow down water inside the heat exchanger. The experiments are done at the blow down water and feed water flow rates ranging between (0.06-0.14) m3 /h with 0.02 m3 /h interval, and between (0.1-0.5) m3 /h with 0.1m3 /h interval, respectively.

DOI: /10.61463/ijset.vol.13.issue2.294