集装箱船中高温余热回收的温差发电研究
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摘要
船舶集装箱温差发电是现代船舶电能开发的重要研究项目,目前已有的温差发电技术均存在电荷负载稳定性方面的问题,严重影响温差发电的综合性能。对此设计从温度均衡性入手提出新型集装箱船中高温余热回收温差发电技术。分析当前集装箱余热成分,对核心部分即烟气流量和缸套热能余量进行计算,重新构筑集装箱冷热端温差输送的换热部分,增大换热翅片,在翅片外部添加矩形导流板,翅片入口和出口处分别设置扩张段和收缩段,消除换热过程中的翅片流通死角,并进行换热紧固,根据热能余量计算结果,定立温差发电片数量尺寸,验证温度波动情况,实现集装箱温差发电。实验数据证明该方法热能转换率提高25%,电力阻隔降低19%,可以有效缓解电荷负载稳定性问题。
The thermal power generation of ship container is an important research project of modern ship electric energy development. The existing thermal power generation technology has the problem of poor charge load stability, which seriously affects the comprehensive performance of thermal power generation. Based on the temperature balance, a new type of thermal power generation technology for high temperature waste heat recovery in container ships is proposed. Analysis of the current composition of waste heat, the core part of the flue gas flow rate and through the calculation of the cylinder liner heat allowance to build part container conveying the hot and cold end temperature difference of heat transfer, increase the heat transfer fin, add rectangular guide plate on the outside of the fin, fin the entry and exit set respectively for expansion and contraction, eliminate heat fin circulation in the process of blind Angle, and heat exchange fastening, based on results of calculating the heat allowance and set temperature difference power generation quantity size, validation of temperature fluctuation situation, realize the container temperature differences. Experimental data show that the thermal energy conversion rate is increased by 25% and the electrical barrier is reduced by 19%, which can effectively alleviate the problem of charge load stability.
The thermal power generation of ship container is an important research project of modern ship electric energy development. The existing thermal power generation technology has the problem of poor charge load stability, which seriously affects the comprehensive performance of thermal power generation. Based on the temperature balance, a new type of thermal power generation technology for high temperature waste heat recovery in container ships is proposed. Analysis of the current composition of waste heat, the core part of the flue gas flow rate and through the calculation of the cylinder liner heat allowance to build part container conveying the hot and cold end temperature difference of heat transfer, increase the heat transfer fin, add rectangular guide plate on the outside of the fin, fin the entry and exit set respectively for expansion and contraction, eliminate heat fin circulation in the process of blind Angle, and heat exchange fastening, based on results of calculating the heat allowance and set temperature difference power generation quantity size, validation of temperature fluctuation situation, realize the container temperature differences. Experimental data show that the thermal energy conversion rate is increased by 25% and the electrical barrier is reduced by 19%, which can effectively alleviate the problem of charge load stability.
引文
[1]阚宗祥,池桂君.水冷式半导体温差发电技术及应用[J].通信电源技术, 2018, 35(06):149–151+153.
[2]成洋,李炜怿.采用ARM的海洋温差发电系统设计[J].舰船科学技术, 2016, 38(5A):55–57.
[3]张继生,唐子豪,钱方舒.海洋温差能发展现状与关键科技问题研究综述[J].河海大学学报(自然科学版), 2019, 47(01):55–64.
[4]王慧斌,汪正洋,吕延枫,等.船舶主机废气余热温差发电的数值模拟与试验研究[J].船舶工程, 2018, 7(1):4–5.
[2]成洋,李炜怿.采用ARM的海洋温差发电系统设计[J].舰船科学技术, 2016, 38(5A):55–57.
[3]张继生,唐子豪,钱方舒.海洋温差能发展现状与关键科技问题研究综述[J].河海大学学报(自然科学版), 2019, 47(01):55–64.
[4]王慧斌,汪正洋,吕延枫,等.船舶主机废气余热温差发电的数值模拟与试验研究[J].船舶工程, 2018, 7(1):4–5.