论文标题
海洋废热恢复二氧化碳闭合循环燃气轮机系统的自行量分析
Exergy analysis of marine waste heat recovery CO2 closed-cycle gas turbine system
论文作者
论文摘要
本文介绍了海洋废热恢复二氧化碳闭合循环燃气轮机系统的充电分析。基于系统开发中获得的工作参数，对每个系统组件进行分析，并对整个观察到的系统进行分析。在观察所有热交换器的同时，发现燃烧气体CO2热交换器具有最低的充电破坏和最高的发射效率（高于92％）。在冷却器中检测到所有热交换器的最低弹性效率（51.84％）。观察到的系统由两个燃气轮机和两个压缩机组成。该分析允许检测主要的机械功率生产者和主要的机械功率消费者。还发现，与压缩机相比，观察到的系统的涡轮发动机具有更高的充电效率（两种涡轮机的发弹性效率高于94％，而两个压缩机的充电效率不超过87％）。整个观察到的废热系统的发射破坏等于6270.73 kW，而在选定的环境状态下，整个系统的充电效率等于64.12％。整个系统产生的有用的机械功率，用于电气发电机驱动器等于11204.80 kW。所获得的整个观察到的系统获得的高弹性效率证明了其在船上的应用。
This paper presents an exergy analysis of marine waste heat recovery CO2 closed-cycle gas turbine system. Based on the operating parameters obtained in system exploitation, it is performed analysis of each system component individually, as well as analysis of the whole observed system. While observing all heat exchangers it is found that combustion gases-CO2 heat exchangers have the lowest exergy destructions and the highest exergy efficiencies (higher than 92%). The lowest exergy efficiency of all heat exchangers is detected in Cooler (51.84%). Observed system is composed of two gas turbines and two compressors. The analysis allows detection of dominant mechanical power producer and the dominant mechanical power consumer. It is also found that the turbines from the observed system have much higher exergy efficiencies in comparison to compressors (exergy efficiency of both turbines is higher than 94%, while exergy efficiency of both compressors did not exceed 87%). The whole observed waste heat recovery system has exergy destruction equal to 6270.73 kW, while the exergy efficiency of the whole system is equal to 64.12% at the selected ambient state. Useful mechanical power produced by the whole system and used for electrical generator drive equals 11204.80 kW. The obtained high exergy efficiency of the whole observed system proves its application on-board ships.
