不同类型蒸发器对ORC系统影响的实验研究

发布时间：2018-06-17 03:32

  本文选题：有机朗肯循环(ORC) + 板式蒸发器　； 参考：《太阳能学报》2017年10期

【摘要】：以中低温能源的高效利用为目的,在稳定热源和变工质流量条件下对以2种不同类型换热器为蒸发器的有机朗肯循环(ORC)发电系统进行实验研究。研究结果表明:ORC系统中板式蒸发器的最大换热系数约是管壳式蒸发器的1.6倍;系统性能方面存在合适工质流量使得系统性能最佳,采用管壳式ORC系统最大热效率与效率约为采用板式ORC系统的1.5倍;在膨胀机进口过热度较低时,板式蒸发器的蒸发空间是制约板式ORC系统性能和稳定性的重要因素;结合2种换热器特点,提出2种换热器串联作为蒸发器的改进设想。
[Abstract]:With the purpose of efficient utilization of medium and low temperature energy, an experimental study on the organic Rankine cycle (ORC) power generation system with 2 different types of heat exchangers is carried out under the condition of stable heat source and variable medium flow. The results show that the maximum heat transfer coefficient of the plate evaporator in the ORC system is about 1.6 times that of the tube and shell evaporator. There is a suitable flow rate for the system to make the best performance of the system. The maximum thermal efficiency and efficiency of the shell type ORC system are about 1.5 times that of the plate type ORC system. The evaporation space of the plate evaporator is an important factor restricting the performance and stability of the plate type ORC system when the inlet superheat of the expander is low; and 2 of the characteristics of the heat exchangers are combined to put forward 2. The type of heat exchanger is used in series as the improvement idea of the evaporator.
【作者单位】： 中低温热能高效利用教育部重点实验室天津大学机械工程学院;
【基金】：国家高技术研究发展(863)计划(2012AA053001)
【分类号】：TM617
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本文编号：2029485