提高海洋热能转换效率:对基于热电发电机的热交换机设计进行比较研究
1Department of Mechanical and Mechatronic Engineering, National Taiwan Ocean University, Keelung 20224, Taiwan.
Materials (Basel, Switzerland)
|April 9, 2024
概括
创新的热交换器提高了海洋热能转换系统中基于甲化物 (Bi2Te3) 的热电发电机的效率. 板和纵向流发电机显著提高了能量转换性能.
科学领域:
- 材料科学 材料科学 材料科学
- 可持续能源技术 可持续能源技术
- 热电能转换热电能转换
背景情况:
- 海洋热能转换 (OTEC) 系统利用海洋水中的温度差异来发电.
- 基于比斯木 telluride (Bi2Te3) 的热电发电机 (TEG) 是 OTEC 系统中的关键组件.
- 有效的传热对于最大限度地提高OTEC应用中的TEG性能至关重要.
研究的目的:
- 评估不同换热器设计对OTEC系统中基于Bi2Te3的TEG的效率的影响.
- 为了比较空腔,板和纵向发生器 (LVG) 热交换器的性能.
- 为了确定最佳的换热器配置,以提高热电转换.
主要方法:
- 计算机模拟被用来建模和分析传热和热电性能.
- 三种不同的热交换器类型 (腔体,板,LVG) 进行了比较研究.
- 在各种条件下评估了性能指标,包括热能传输效率和TEG输出功率.
主要成果:
- 与空腔设计相比,板和LVG热交换器显示出更高的热能传输效率.
- 板式换热器增加了TEG输出功率约22.92%,转换效率增加了约38.20%.
- LVG 换热器导致输出功率增加了 ~13.02%,转换效率提高了 ~16.83%.
结论:
- 优化的热交换器设计,特别是板和LVG,显著提高了OTEC系统中基于Bi2Te3的TEG的性能.
- 热交换器的选择和设计必须平衡改善的热传输与功率要求.
- 这项研究为材料科学提供了有价值的见解,用于推进可持续的OTEC技术.
关键词:
这就是Bi2Te3的原因.换热器换热器的使用纵向旋发生器 纵向旋发生器海洋热能转换转换海洋热能可再生能源可再生能源的能源.可持续发展的发展是可持续的发展.可持续的技术 可持续的技术热电发电机是一个热电发电机.热电材料是一种热电材料.更多相关视频
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