Employing enhanced geometries in water bath heating system of natural gas pressure drop stations: Comparative study

Khoshvaght-Aliabadi, M.; Soleimani, Parinaz; Rehman, Shafiqur; Alimoradi, Ashkan

doi:10.1016/j.jngse.2020.103775

Cited by 4 publications

(3 citation statements)

References 45 publications

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Section: Discussionmentioning

confidence: 99%

“…To some extent, the bonded mesh designed based on these geometries can recover the heat produced by regenerative systems [26]. However, there is still the thermal efficiency and pressure drop problem in wire filament surfaces due to space constraints to installation [27]. This comparison of temperature efficiency occurs while the mass of two identical regenerators is selected the same, and only the essential role is played by the effect of the regenerator's geometry.…”

Section: Discussionmentioning

confidence: 99%

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Thermal/fluid characteristics of the inline stacked plain‐weave screen as solar‐powered Stirling engine heat regenerators

Mortazavi

Beni

Islam

2022

IET Renewable Power Gen

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The present work demonstrates the results of a 3D numerical analysis of heat transfer and fluid flow through a fabricated aluminium wire filament, bonded mesh deployed as a regenerator surface in the Stirling engine. Here, two inline regenerator models with the same mass but different geometry were simulated by computational fluid dynamics (CFD) and finite element method (FEM). The results show that the temperature efficiency of both inline with non‐uniform and uniform wire diameters is almost equal. However, the non‐uniform diameter model is shorter and reaches the maximum thermal efficiency faster in reduced length <18$ < 18$. Also, it shows approximately 5% a greater mean thermal efficiency. In general, from this simulation, it can be seen that changes in the geometry of the heat regenerator can have a direct effect on thermal efficiency and pressure drop in the same mass. Therefore, using the inline stacked plain‐weave screen with a non‐uniform wire diameter regenerator in the powered Stirling engine is recommended due to space constraints. Small changes in the regenerator geometry lead to immense leaps in increasing a solar power plant's overall efficiency.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Thermal/fluid characteristics of the inline stacked plain‐weave screen as solar‐powered Stirling engine heat regenerators

Mortazavi

Beni

Islam

2022

IET Renewable Power Gen

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“…General considerations of previous analysis in the decompression system are presented below: The natural gas output pressure is 3 bar, and the output temperature is 20 • C; • Natural gas flow output from the station is rated at 300 m 3 /h [37].…”

Section: Initial Considerationsmentioning

confidence: 99%

Energy, Exergy, Exergoeconomic Analysis, and Optimization in a Natural Gas Decompression Station with a Vortex Tube and Geothermal Preheating

Villalón-López,

Ambriz-Díaz,

Rubio-Maya

et al. 2024

Sustainability

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Natural gas stations require a preheating stage to prevent the formation of hydrates inside of them provoked by a sudden decompression process of the natural gas. The preheating process has been investigated to improve efficiency and to reduce costs as well. This work studies the behavior of a natural gas decompression station with a first-stage preheating process using a vortex tube and a geothermal heat exchanger, followed by a second stage involving a water bath heater (heating vat). An energetic, exergetic, and exergoeconomic study has been carried out based on a mathematical model and the theory of exergetic cost, obtaining key thermodynamic and thermoeconomic variables, including exergy flows and equipment costs. A heat flow of 26.41 kW was obtained in the geothermal preheating stage; meanwhile, a 60.43 kW heat flow was obtained in the heating vat. The results showed a saving in station fuel using only 2.046% of the natural gas in the system at the second preheating stage. Also, the system was optimized, obtaining a 15.73% reduction in the decompressed natural gas cost. These findings show the possibility of implementing these systems in zones with many geothermal resources to reach a constant, profitable natural gas supply in areas where a pipeline network does not exist.

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Comprehensive review of heat transfer and fluid flow characteristics of elliptical/oval twisted tubes

Sheikhi Azizi,

Mousavi,

Vafai

et al. 2025

International Journal of Heat and Fluid Flow

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Employing enhanced geometries in water bath heating system of natural gas pressure drop stations: Comparative study

Cited by 4 publications

References 45 publications

Thermal/fluid characteristics of the inline stacked plain‐weave screen as solar‐powered Stirling engine heat regenerators

Thermal/fluid characteristics of the inline stacked plain‐weave screen as solar‐powered Stirling engine heat regenerators

Energy, Exergy, Exergoeconomic Analysis, and Optimization in a Natural Gas Decompression Station with a Vortex Tube and Geothermal Preheating

Comprehensive review of heat transfer and fluid flow characteristics of elliptical/oval twisted tubes

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