With the vessel m/t Oraholm as the empirical outset, the following thesis comes up with suggestions for the optimization of the already existing ventilation system on board the ship.
It is written by a student at Aarhus School of Marine and Technical Engineering, as the final bachelor’s thesis of his education.
M/t Oraholm is a small/medium-sized tanker that typically operates in Europe. The vessel transports a large number of different liquids, for example, molasses, oil from vegetables, and ethanol.
Due to the shifting weather conditions occurring in Europe throughout the year, the vessel is exposed to significant shifts in temperatures, from around minus 10 degrees to plus 35 degrees. These shifts in temperatures, and the fact that the ventilation system on board is of low quality, and some places barely working, results in the operation safety not corresponding to the requirements of the crew, ship owner and customers. Furthermore, the safety of the staff is dropping each time the operations of the ship fail.
The main concerns of the crew is that some of the electronic equipment sometimes fail due to the high temperatures in the engine room, while another concern is that some of the valves occasionally freeze up when sailing in cold weather, hence not being operational.
As a secondary requirement, the crew would like to have more convenient temperature climate in the engine section, which currently follows the weather outside.
The focus of the proposal for optimization will be within the following three categories: crew safety, environmental impact, and reduced monetary costs of the vessel’s operations.