小型漁船の船底清掃による燃料消費量と NOx排出量の低減効果

抄録

A series of field tests was conducted by using a 12GT fishing boat with a 4 cycle marine diesel engine of 265kW/2,200rpm, for the purpose of finding out the cleaning effects in respect of fuel consumption and NOx As the results, it was revealed that (1) fuel consumption [kg/h] as well as NOx emission [kg/h] was reduced remarkably by cleaning propeller, rudder and bottom of hu11, especially the first one, which occupied as much as about 30 to 40% of the cleaning effect and (2) that the foul of boat before cleaning prevented her from sailing more than l0 knots, i.e, she could not sail in the range of speed of low NOx emission.