论文部分内容阅读
自从1973年埃以战争以来,便出现了世界能源危机,导致石油价格暴涨,十年来猛增了十倍。虽然由于资本主义经济危机的影响,近来石油价格略有下跌,但这是暂时的现象。目前,在国外船舶运输中,燃料费用已占船舶总营运费用的50%左右。因此,各国船用柴油机制造厂家,为了保持其竞争地位,都致力于降低燃油消耗率的研究,并已取得较大的进展。低速二冲程柴油机的油耗率已小于135克/马力·小时(如苏尔寿 Sulzer 公司的 RTA 系列柴油机最低油耗率已达122克/马力·小时),中速四冲程柴油机的油耗率达140～145克/马力·小时,高速四冲程柴油机的油耗率达155克/马力·小时。
Since the war on Egypt in 1973, a world energy crisis has emerged that has caused the price of oil to soar, surging tenfold over the past decade. Although oil prices have dropped slightly in the recent past due to the economic crisis in capitalism, this is a temporary phenomenon. At present, in the overseas shipping, the fuel cost has accounted for about 50% of the total operating cost of the ship. Therefore, marine diesel engine manufacturers all over the world, in order to maintain their competitive position, are committed to reducing fuel consumption rate of the study and have made great progress. Low-speed two-stroke diesel fuel consumption rate has been less than 135 grams / hp · h (such as the Sulzer company Sulzer’s RTA series diesel engine has reached the minimum fuel consumption rate of 122 g / h h), medium-speed four-stroke diesel fuel consumption rate of 140 ~ 145 g / hh, high-speed four-stroke diesel fuel consumption rate of 155 g / hh.