Experimental study for the small capacity organic Rankine cycle to recover the geothermal energy in Obama hot spring resort area
Experimental study for the small capacity organic Rankine cycle to recover the geothermal energy in Obama hot spring resort area
复制标题
奥巴马温泉度假区小容量有机朗肯循环回收地热能实验研究
DOI：
10.1016/j.egypro.2019.02.172
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发表时间：
2019
期刊：
影响因子：
--
通讯作者：
Momoki Satoru
中科院分区：
文献类型：
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作者：
Yamaguchi Tomohiko;Sasaki Soichi;Momoki Satoru
虽然废热回收系统是可持续能源的关键技术之一，但对于日本温泉旅馆等中小型公司来说，该系统的初始成本过于昂贵。由于研究和开发成本占系统总成本的很大份额，如果系统由批量生产的商业组件组成，则可以降低成本。在这项研究中，分析结果和实验结果的两个废热回收循环组成的组件从商业热泵机组。在对超临界CO2朗肯循环的分析研究中，计算出在所有部件的性能与原热泵系统相当的情况下，该循环的热效率为6.77%。在利用热泵中的翅片管换热器进行R245 fa有机朗肯循环（ORC）的实验研究中，发现风冷翅片管换热器在室温下运行良好，且该ORC系统能够利用温泉水的余热产生少量的正功率。
Thought a waste heat recovery system is one of key technologies for sustainable energy, the initial cost of the system is too expensive to introduce for small and medium-sized companies, such as a Japanese hot spring inn. Since the cost for research and development accounts for a large share of total cost of the system, the cost can be reduced if the system is composed of mass-produced commercial components. In this study, an analytical result and an experimental result for two waste heat recovery cycles composed of components dismounted from a commercial heat pump unit are shown. In the analytical study about a supercritical CO2Rankine cycle, the thermal efficiency of the cycle was calculated to be 6.77 % if it could be assumed that all of the components delivered the equal performance compared with the original heat pump system. In the experimental study about the Organic Rankine Cycle (ORC) with R245fa which uses the fin-tube heat exchanger dismounted from the heat pump, we found that the air cooled fin-tube heat exchanger performed well at the room temperature and this ORC system had an ability to generate the small amount of positive power from the exhaust heat from hot spring water.