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Design and thermodynamic analysis to avoid preheating in gas grid pressure reduction stations

Wajdi RajhiLaboratoire de Mécanique, Matériaux et Procédés LR99ES05, Ecole Nationale Supérieure d'Ingénieurs de Tunis, Université de Tunis 2 , 5 Avenue Taha Hussein, Montfleury, 1008 Tunis, TunisiaAli BasemUniversity of Warith Al-AnbiyaaKhitam ShakerDepartment of Chemical Engineering, University of Technology 4 , Baghdad 19006, IraqKamal SharmaInstitute of Engineering and Technology, GLA University 5 , Mathura, Uttar Pradesh 281406, IndiaDheyaa J. JasimWalid AichLaboratory of Meteorology and Energy Systems, University of Monastir 7 , Monastir 5000, TunisiaBadreddine AyadiLaboratory of Applied Fluid Mechanics, Environment and Process Engineering “LR11ES57,” National School of Engineers of Sfax (ENIS), University of Sfax 8 , Route Soukra Km 3.5, Sfax 3038, TunisiaReza AlayiDepartment of Mechanics, Germi Branch, Islamic Azad University 9 , Germi 5651763764, Iran

2024en

ABI

Annotatsiya

Paying close attention to the environmental risks associated with traditional forms of energy, particularly the serious issue of global warming caused by the release and concentration of greenhouse gases, has become a paramount concern. This growing awareness has prompted governments worldwide to prioritize the benefits of alternative energy sources and develop comprehensive plans accordingly. Moreover, it is crucial to thoroughly consider and explore existing potentials in our quest for sustainable energy solutions. One such potential lies in the energy loss experienced due to gas pressure reduction in urban gas reduction stations. Furthermore, as we increase the amount of natural gas preheating, we observe a corresponding rise in the temperature within the expansion turbine, ultimately resulting in a significant boost in power generation. In this paper, we delve into the exciting possibility of harnessing electricity generation by utilizing a turbo expander within a municipal gas pressure reduction station. To maximize the work generation capacity, we propose preheating the gas input to the turbo expander using geothermal energy. Our study reveals that the turbo expander exhibits optimal performance, boasting an impressive isentropic efficiency of 92.3%, when the inlet temperature is maintained at 84 °C and the amount of preheating reaches 192.3 kJ/kg.

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Identifikatorlar

DOI: 10.1063/5.0205221

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