Shell and tube heat exchanger Aalborg EH

for ships

The Aalborg EH (formerly VESTA EH) is a flow-through electric heater, ideal for heating either oil or water. Type Electric flow-through heater. Single-pass configuration with quick-change elements (QCE); also available as insert/immersion heater. Can be mounted vertically or horizontally as required. Size The Aalborg EH (formerly VESTA™ EH) series heaters range from Ø150 mm to Ø400 mm shells; heating element lengths from 600 mm to 1,800 mm (overall length 870 mm to 2,250 mm). Nozzles according to DIN 86030 or JIS 16K are tailored to customers' individual requirements. Capacity The heat load ranges from 5 kW to 235 kW with surface loads from 0.8 W/cm2 to 3.0 W/cm2, depending on the limitations of the heated fluid. Any intermediate design is available from the standard range. The EH series is designed for 180 - 690 V AC/DC; heating elements are manufactured to suit customer specific power source. Design pressure is 16 bar(g). Design temperature is 160 ºC. Applications The Aalborg EH series heat exchangers are primarily used as booster/auxiliary oil or water heaters in ships. The flexible design makes them well suited for any application where backup or booster heating is required or where electric power is the cheapest or the only available power source. Fluids Lubrication oil, heavy fuel oil, fresh or treated water, engine coolants. Equipment The shell is fitted with two ½ inch sockets for mounting of safety valve and drain valve. The heater is fitted with a safety thermostat and a sensor pocket at the outlet for the working thermostat.