Reducing energy consumption for heat processes in engine room and for cargo heating and tank cleaning

Several Norwegian ship owners employ their ships in the trade and transport of chemicals. Chemical carriers are one of the most complicated areas within cargo handling, with thousands of different cargoes/commodities transported, with treatment and cleani ng of cargoes into segregation of more than 50 tanks for many ships. There is an awareness that there are severe differences in the use of fossil fuels to solve the same operations on similar ships in the same duty. The project will work to define the sc ope and plans to apply better technology and processes that reduce the use of fossil fuels for heat demands on these tank ships. The regulations by the International Maritime Organization demanding use of low sulphur fuels or scrubber technology will als o influence the future scenarios, with respect to cost of maritime fuels and the production of heat by exhaust gas economizers onboard ships. Hence, future optimization of heat systems has to cost- and environmentally effectively handle also these upcomin g constraints. The project will bring improved systems and technical operation in application/practice by cooperation between dedicated users, a system supplier and a research institution. The yearly consumption of fuel on a typical chemical carrier, onl y for the oil fired boilers, can reach an amount of more than 1000 tons. There is an assumed potential to reduce this consumption with at least 20 per cent by cases in this project and to provide essentials of this experience to a wider community for thei r improvement. The project will be broken into following tasks. 1. Heat generation technology 2. Steam distribution 3. Consumers 4. Optimal operation 5. Scenarios for 2015 and 2020 6. Training