论文部分内容阅读
本研究的目的是确定美国海军各种舰船上生产淡水所需能量消耗的质量和数量,并就如何降低能量消耗的可能性作了探讨。根据现有舰船热平衡和蒸馏装置技术手册计算了能量消耗使用值。船舶运行对蒸馏器经济性的影响是由船舶航线(Profile)、电能转换效率、锅炉效率和辅机乏汽利用率所决定的。分析的结果表明,淡水生产约占船舶上总能量消耗的2％,相当于舰队每年2200万美元的燃料费。造成每磅淡水能量消耗高达434英热单位的原因是电能转换效率低,锅炉效率低,蒸馏器设计强调重量尺寸和可靠性甚于燃料的节约。减少生产淡水总能量消耗的有效方法是:废水再利用、降低水的消耗,研究更有效的淡化方法;改进电能转换和锅炉效率;通过对现有船舶的运行情况和船舶航海日记所作的分析,可以更正确地确定减少储藏水的范围。
The purpose of this study was to determine the quality and quantity of energy needed to produce freshwater on various US Navy ships and to explore ways to reduce the energy consumption. Energy consumption values were calculated based on the existing ship heat balance and distillation unit technical manuals. The impact of ship operation on distiller economics is determined by the profile of ship, conversion efficiency of electricity, boiler efficiency and availability of auxiliary steam turbine. The results of the analysis indicate that freshwater production accounts for about 2% of the total energy consumption on board the ship, which equates to a fleet of $ 22 million annually in fuel costs. The reason for the energy consumption of up to 434 British thermal units per pound of freshwater is the low energy conversion efficiency and low boiler efficiency. The distiller design emphasizes weight and reliability over fuel savings. Effective ways to reduce the total energy consumption of freshwater production are: reuse of wastewater, reduction of water consumption, study of more effective desalination methods, improvement of power conversion and boiler efficiency, analysis of existing ship operation and diary of ship navigation, It is possible to determine more accurately the range of reduced storage water.