Isothermal laminar fluid flow in spiral tube coils

Patil, Rahul Harishchandra

doi:10.1007/s00231-018-2387-2

Cited by 8 publications

(2 citation statements)

References 30 publications

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“…There are several reports available elucidating the heat transfer and flow field in a single spiral. ,− It can be used for reactions as well as other unit operations, viz. extraction, absorption and dissolution.…”

Section: Introductionmentioning

confidence: 99%

Hydrodynamics, Residence Time Distribution, and Mass Transfer in Spiral Coils in Series

Khan,

Deore,

Kulkarni

2023

Ind. Eng. Chem. Res.

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Section: Introductionmentioning

confidence: 99%

Hydrodynamics, Residence Time Distribution, and Mass Transfer in Spiral Coils in Series

Khan,

Deore,

Kulkarni

2023

Ind. Eng. Chem. Res.

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“…Similarly, the helically coiled heat exchangers are often considered in this area owing to their advantage, which is a large heat transfer area compacted in a relatively small volume [31]. However, the majority of studies are limited to the analysis of thermal and flow characteristics inside the coiled tube [32][33][34]. The analyses of the detailed mechanisms of biomass volatile combustion are not numerous.…”

Section: Introductionmentioning

confidence: 99%

Biomass Combustion in the Helically Coiled Domestic Boiler Combined with the Equilibrium/Chemical Kinetics CFD Approach

2023

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In the face of threats related to energy supply and climate change, the use of biomass is gaining importance, particularly in distributed energy systems. Combustion of biomass, including residue biomass, is considered one of the routes to increase the share of renewables in energy generation. The modeling of gaseous phase reactions remains crucial in predicting the combustion behavior of biomass and pollutant emissions. However, their simulation becomes a challenging task due to the computational cost. This paper presents a numerical analysis of the combustion process of a gas mixture released during biomass decomposition in a domestic 25 kW coil-type boiler. Three types of biogenic fuels were taken into consideration. The work aimed at examining the available tools for modeling gas burning, thus the geometry of the system was limited only to the 2D case. The thermodynamic equilibrium composition of pyrolysis gas was determined and implemented in Ansys to simulate the process. The computational results showed the potential of detailed, but reduced, combustion mechanisms of CH4/CO/H2 mixtures in predicting the main process features. The mechanism involving 85 reactions appeared to be more reliable compared to that comprising 77 reactions, particularly for volatiles with higher H2 content, whilst offering an acceptable calculation time. The burning characteristics obtained for volatiles with less CH4 and more H2 are in good agreement with the real operation conditions reported for the boiler.

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Exergy and exergoeconomic analysis of a shell and spirally coiled tube heat exchanger based on coupled CFD and thermodynamic simulations

Zeinali

Neshat

2021

J Therm Anal Calorim

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Isothermal laminar fluid flow in spiral tube coils

Cited by 8 publications

References 30 publications

Hydrodynamics, Residence Time Distribution, and Mass Transfer in Spiral Coils in Series

Hydrodynamics, Residence Time Distribution, and Mass Transfer in Spiral Coils in Series

Biomass Combustion in the Helically Coiled Domestic Boiler Combined with the Equilibrium/Chemical Kinetics CFD Approach

Exergy and exergoeconomic analysis of a shell and spirally coiled tube heat exchanger based on coupled CFD and thermodynamic simulations

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