摘要
在简述海洋温差能发电项目进展的基础上,文中综述了闭式海洋温差能循环系统用工质对热力循环效率影响的现状,以及朗肯循环和非共沸工质的Kalina循环等循环的研究和进展。目前,海洋温差能热力循环的热效率仍需要进一步提高,这一方面的研究主要集中在选择合适的热力循环工质,提高热力循环的发电温差,以及在热力循环中采取回热、中间抽气、贫氨溶液再热回收、引射器引射乏气等措施上。循环热效率也从朗肯循环的3%提高到了上原循环、国海循环等热力循环的5%以上。但目前对海洋温差能闭式循环的研究仍然偏向于理论,运用试验手段的试验研究相对较少,同时仍存在扩充非共沸工质种类等需要研究解决的问题。
This paper has briefly reviewed the progress of the ocean thermal energy conversion generation development,and summarized the current situation on how working fluid employed in the ocean thermal energy conversion cycle system affects the efficiency of energy circulation,the research developments of Rankine cycle and non-azeotropic working fluidcycles,such as Kalina cycle.Most current studies on efficiency improvement are concentrated on the selection of working fluid consisting of pure and non-azeotropic working fluid,the increment of evaporation temperature,the decrease of the condensation temperature,and the utilization of the regeneration,extraction,reheat and ejector.Although the cycle efficiency has been increased from 3%of basic Rankine cycle to 5%of Uehara cycle and Guohai cycle at present,the up-to-date research seems more theoretical rather than experimental,meanwhile,other problems also exist such as only a few choices available for non-azeotropic working fluid.
作者
薛海峰
刘延俊
侯云星
徐晓健
陈云
刘伟民
XUE Hai-feng;LIU Yan-jun;HOU Yun-Xing;XUE Xiao-jian;CHEN Yun;LIU Wei-min(Institute of Marine Science and Technology,Shandong University,Ji'nan 250100,Shandong Province,China;School of Mechanical Engineering,Shandong University,Key Laboratory of High Efficiency and Clean Mechanical Manufacture,Ji'nan 250061,Shandong Province,China;Department of Mathematics&Statistics,Brock University,ST CatharinesL2S 3A1 Canada;The First Institute of Oceanography,SOA,Qingdao 266061,China)
出处
《海洋技术学报》
2018年第6期105-117,共13页
Journal of Ocean Technology
基金
中韩合作项目“中韩海洋能源开发与利用技术交流合作”(PI-2018-4)
国家自然科学基金资助项目“海洋温差发电混合工质热力循环二次热回收影响机理研究与试验验证”(51709055)
国家海洋能专项资助项目“南海温差能综合利用系统总体设计”(A201680)
2018海洋可再生能源专项资助项目“南海温差能工程化应用前期研究”(GHME2018ZC04)