Heat recovery hot water, steam or thermal oil heating systems are commonly applied for heating the ships heavy fuel oil and/or liquid cargo. These systems also providing the heat for HVAC, hot water, etc. on a ship.   The thermal oil heating systems are known for their long life, low maintenance and high efficiency.

The water temperature, heated up to 50-70 °C in these boilers, is then pumped to the heating coils in the AHU by means of pumps. The steam obtained in the steam boilers, is first sent to the heat exchangers to heat the heating water temperature up to 70-90 °C to be used at AHU units. For fan-coil units for heating or cooling small volumes heating water temperature is adjusted to 50-70 °C by thermostatic expansion valves. In order to save fuel and heat in air conditioning processes in modern air-conditioning applications, absorbent systems fed by recovery of exhaust gas is used for heating the water. Solar energy can also be used in air-conditioning system designs if suitable installations are provided.


Figure.14 Hot-water/steam production by scotch/heat recovery boilers


Last modified: Tuesday, 11 April 2023, 9:11 PM