Entropy generation analysis of combustion process adopting blended propane/hydrogen fuels in micro-combustor

Huang, Qiuhan; Tang, Aikun; Cai, Tao; Zhao, Dan; Zhou, Chen

doi:10.1016/j.cep.2019.107601

Cited by 14 publications

(5 citation statements)

References 46 publications

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“…Nadimi et al [ 39 ] examined the impact of inserting a micro-fin within the micro-combustor to increase the exergy efficiency of the combustion, whereas Li et al [ 40 ] focused on inserting a rectangular rib in the combustion chamber to increase the exergy efficiency of the micro-combustor. According to Huang et al [ 41 ], the exergy efficiency of the premixed propane/hydrogen flame dropped as channel height increase in the micro-planar combustor. Cai et al [ 42 ] recently revealed that the exergy efficiency using an inserted bluff-body within a combustor is found to be greater than the conventional combustor.…”

Section: Introductionmentioning

confidence: 99%

Double-Layer Micro Porous Media Burner from Lean to Rich Fuel Mixture: Analysis of Entropy Generation and Exergy Efficiency

Ismail

Abdullah

Mustafa

et al. 2021

Entropy

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Porous media burner (PMB) is widely used in a variety of practical systems, including heat exchangers, gas propulsion, reactors, and radiant burner combustion. However, thorough evaluations of the performance of the PMB based on the usefulness of entropy generation, thermal and exergy efficiency aspects are still lacking. In this work, the concept of a double-layer micro PMB with a 23 mm cylindrical shape burner was experimentally demonstrated. The PMB was constructed based on the utilization of premixed butane-air combustion which consists of an alumina and porcelain foam. The tests were designed to cover lean to rich combustion with equivalence ratios ranging from ϕ = 0.6 to ϕ = 1.2. It was found that the maximum thermal and exergy efficiency was obtained at ϕ = 1.2 while the lowest thermal and exergy efficiency was found at ϕ = 0.8. Furthermore, the findings also indicated that the total entropy generation, energy loss, and exergy destroyed yield the lowest values at ϕ = 1.0 with 0.0048 W/K, 98.084 W, and 1.456 W, respectively. These values can be stated to be the suitable operating conditions of the PMB. The findings provided useful information on the design and operation in a double-layer PMB.

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Section: Introductionmentioning

confidence: 99%

Double-Layer Micro Porous Media Burner from Lean to Rich Fuel Mixture: Analysis of Entropy Generation and Exergy Efficiency

Ismail

Abdullah

Mustafa

et al. 2021

Entropy

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“…Features of dissipative unsteady flow and EG with thermo-diffusion and diffusion thermo effects are reported by Hayat et al [39] Recent developments on entropy generation are described in Refs. [40][41][42][43][44][45][46][47][48][49][50].…”

Section: Introductionmentioning

confidence: 99%

Physical aspects of magnetized Jeffrey nanomaterial flow with irreversibility analysis

Haq¹,

Khan²,

Khan³

et al. 2022

Chinese Phys. B

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This analysis presents the applications of entropy generation phenomenon in incompressible flow of Jeffrey nanofluid in presence of distinct thermal features. The novel aspects of various features like Joule heating, porous medium, dissipation features and radiative mechanism is addressed. In order to improve the thermal transportation systems based on nanomaterials, the convective boundary conditions are introduced. The thermal viscoelastic nanofluid model is expressed in term of differential equations. The problem is presented via nonlinear differential equations for which analytical expressions are obtained by using homotopy analysis method(HAM). The accuracy of solution is ensured. The effective outcomes of all physical parameters associated with the flow model are carefully examined and underlined through various curves. The observations summarized from current analysis reveal that presence of permeability parameter offers resistance to the flow. A monotonic decrement in local Nusselt number is noted with Hartmann number and Prandtl number. Moreover, entropy generation and Bejan number increases with radiation parameter and fluid parameter.

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“…However, could ammonia combustion be applied in small-size combustion systems? Such small-combustor with hydrogen or hydrocarbon fueled is a critical component in micro-power generation [23][24][25][26].…”

Section: Introductionmentioning

confidence: 99%

Bluff-body effect on thermal and NO emission characteristics in a micro-planar combustor fueled with premixed ammonia-oxygen

Cai

Zhao

Jiaqiang

2020

Chemical Engineering and Processing - Process Intensification

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Entropy generation analysis of combustion process adopting blended propane/hydrogen fuels in micro-combustor

Cited by 14 publications

References 46 publications

Double-Layer Micro Porous Media Burner from Lean to Rich Fuel Mixture: Analysis of Entropy Generation and Exergy Efficiency

Double-Layer Micro Porous Media Burner from Lean to Rich Fuel Mixture: Analysis of Entropy Generation and Exergy Efficiency

Physical aspects of magnetized Jeffrey nanomaterial flow with irreversibility analysis

Bluff-body effect on thermal and NO emission characteristics in a micro-planar combustor fueled with premixed ammonia-oxygen

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