摘要
以3MW海上风力发电机为研究对象,在考察其机舱布置结构、主要部件散热情况及环境要求的基础上,对机舱进行了热平衡设计,建立了机舱热平衡方程;提出了舱内部件载荷、机舱内外对流换热系数、舱内正压维持新风量的计算方法;获得了射流冷却方式下的舱内热载荷变化特性;并研究了舱内外空气温度、速度、舱体表面灰度等因素对机舱热平衡的影响。研究工作对于大容量风力发电冷却系统的设计优化具有参考价值。
According to the analysis of engine room structure and heat-dissipating of different components and environmental operating requirements of 3 MW Wind Turbine System, heat balance design of Wind Turbine＇s engine room is carried out. Then calculation method of the heat load of engine room including the components heat load, outside heat load and fresh air heat load are proposed. At the same time, heat load changing characteristics of the engine room is obtained under the cooling method of jetting and influence of factors such as air temperature and speed and gray scale of the engine room to heat balance of the Cabin is researched. This work could be helpful for the optimization of large-capacity Wind Turbine＇s cooling system.
出处
《世界科技研究与发展》
CSCD
2011年第5期854-857,共4页
World Sci-Tech R&D
关键词
风力发电
机舱热平衡
热载荷
冷却方式
wind turbine
heat balance of engine room
heat load
cooling-down method
