燃烧和反应

Natural Gas Pressure Reduction Station Self-powered by Fire Thermoelectric Generator

  • WANG Yupeng ,
  • TONG Xiao ,
  • WANG Hongmei ,
  • QIU Junfeng ,
  • SHEN Limei
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  • 1. School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
    2. Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
    3. Hangzhou Steam Turbine Company Limited, Hangzhou 310022, China
    4. Shenzhen Huazhong University of Science and Technology Research Institute, Shenzhen 518057, China

网络出版日期: 2023-12-01

基金资助

This work was jointly supported by the Natural Science Foundation of China (52176007), the Fundamental Research Funds for the Central Universities (2016YXMS048) and Basic Research Program of Shenzhen Science and Technology (JCYJ20210324115611030).

版权

Science Press, Institute of Engineering Thermophysics, CAS and Springer-Verlag GmbH Germany, part of Springer Nature 2022

Natural Gas Pressure Reduction Station Self-powered by Fire Thermoelectric Generator

  • WANG Yupeng ,
  • TONG Xiao ,
  • WANG Hongmei ,
  • QIU Junfeng ,
  • SHEN Limei
Expand
  • 1. School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
    2. Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
    3. Hangzhou Steam Turbine Company Limited, Hangzhou 310022, China
    4. Shenzhen Huazhong University of Science and Technology Research Institute, Shenzhen 518057, China

Online published: 2023-12-01

Supported by

This work was jointly supported by the Natural Science Foundation of China (52176007), the Fundamental Research Funds for the Central Universities (2016YXMS048) and Basic Research Program of Shenzhen Science and Technology (JCYJ20210324115611030).

Copyright

Science Press, Institute of Engineering Thermophysics, CAS and Springer-Verlag GmbH Germany, part of Springer Nature 2022

摘要

减压站是在天然气输送过程中必不可少的设施之一,其具有压力调控、供需管理和流量计量等功能。然而,目前有大量的天然气减压站位于远离电网的偏远地区,主要使用电池为设备供电,这导致了其运营成本较高。因此,如何实现这些天然气减压站的能源独立是一个亟待解决的问题。本文针对离网地区的天然气减压站设计了一种天然气燃烧型热电发电器(FTEG),该设备主要包括燃气烟道、燃气盖、热电发电模块和散热器。同时,在FTEG设备中引入相变材料,将其工作模式由连续性模式转变为周期性模式,并制备了FTEG设备的原型机,讨论了不同模式下的发电性能。结果表明,周期性模式下FTEG设备的发电效率比连续模式下提高了63%。然后,本文进一步建立了仿真模型,探究了空气系数、冷侧散热器和热电发电模块数量对FTEG设备性能的影响。在这些影响参数里,冷侧散热器和热电发电模块数量的影响更显著。对上述参数优化后的FTEG设备具有32个热电发电模块,平均发电功率可达16.4 W,集热效率为84.6%。因此,可以通过串联3 ~ 6个FTEG设备来满足天然气减压站的的功率需求(50 ~ 100W)。该高性能FTEG设备可以加速天然气减压站实现能源独立的进程,同时促进热电发电模块在中尺度设备上的进一步应用。

本文引用格式

WANG Yupeng , TONG Xiao , WANG Hongmei , QIU Junfeng , SHEN Limei . Natural Gas Pressure Reduction Station Self-powered by Fire Thermoelectric Generator[J]. 热科学学报, 2022 , 31(3) : 840 -853 . DOI: 10.1007/s11630-022-1592-y

Abstract

Pressure reduction station (PRS) is an essential facility in natural gas transmission, which owns the function of pressure reduction, demand-supply management and flow metering. However, a large number of PRSs are located in off-grid areas and powered by battery equipment resulting in high maintenance costs. So, how to realize the energy independence of these PRSs is an urgent issue to be solved. Therefore, the natural gas fired thermoelectric generation (FTEG) module, including gas flue, cover, TEGs and heat radiators, is designed for PRS in off-grid areas. Phase change material is introduced into the FTEG module to change the operation mode from continuous mode into a periodic mode, and the prototype of the FTEG module is built to discuss the generation performance in different modes. The results show that the generation efficiency of the FTEG module is improved by 63% in periodic mode compared with the continuous mode. Then, the numerical model is established to investigate the impacts of air coefficient, cold-side heat radiator and number of TEGs on the module performance. It found that the impacts of cold-side heat radiator and the number of TEGs are more significant than those of the air coefficient. After adjusting these key parameters, an optimized FTEG module with 32 TEGs is proposed, which has an average power generation of 16.4 W and a heat collection efficiency of 84.6%. Eventually, 3 to 6 modules can be connected in series to meet the power requirement of 50 W to 100 W for PRS. This high-performance FTEG module can accelerate the process of achieving the energy independence of PRS and promote its application in mesoscale equipment.

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