Analytical solution of nucleate pool boiling heat transfer model based on macrolayer

Danish, Mohd; Mesfer, Mohammed K. Al

doi:10.1007/s00231-017-2124-2

Cited by 5 publications

(3 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The developed mathematical model (Equation ( 5)) and detailed analytical solution presented elsewhere [48] for heat transfer through the macrolayer and the corresponding equations (Equations ( 6)-( 9)) obtained through the analytical solution of the developed model using appropriate boundary and initial conditions for conduction heat flux, average conduction heat flux, and temperature profile are presented as follows.…”

Section: Current Model and Analytical Solutionmentioning

confidence: 99%

“…Jairajpuri and Saini [47] developed an unsteady-state heat exchange model of diminishing macrolayer thickness. An analytical solution using Laplace transformation of the heat exchange model based on macrolayer has been presented [48]. An unsteady-state model considering heat exchange in the heater wall and macrolayer was developed by Prasad and colleagues [49].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Predicting Conduction Heat Flux through Macrolayer in Nucleate Pool Boiling

et al. 2021

Self Cite

View full text Add to dashboard Cite

In the current work, the heat flux in nucleate pool boiling has been predicted using the macrolayer and latent heat evaporation model. The wall superheat (ΔT) and macrolayer thickness (δ) are the parameters considered for predicting the heat flux. The influence of operating parameters on instantaneous conduction heat flux and average heat flux across the macrolayer are investigated. A comparison of the findings of current model with Bhat’s decreasing macrolayer model revealed a close agreement under the nucleate pool boiling condition at high heat flux. It is suggested that conduction heat transfer strongly rely on macrolayer thickness and wall superheat. The wall superheat and macrolayer thickness is found to significantly contribute to conduction heat transfer. The predicted results closely agree with the findings of Bhat’s decreasing macrolayer model for higher values of wall superheat signifying the nucleate boiling. The predicted results of the proposed model and Bhat’s existing model are validated by the experimental data. The findings also endorse the claim that predominant mode of heat transfer from heater surface to boiling liquid is the conduction across the macrolayer at the significantly high heat flux region of nucleate boiling.

show abstract

Section: Current Model and Analytical Solutionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Predicting Conduction Heat Flux through Macrolayer in Nucleate Pool Boiling

et al. 2021

Self Cite

View full text Add to dashboard Cite

show abstract

“…The bubble diameter was predicted by the classical heat flux partitioning model and it was also suggested that nanoparticle depositions on the heater surface leads to increased performance of heat transfer in nanofluid. An analytical solution of the model was presented for heat transfer through a macrolayer at a high heat flux, and the predicted results were compared with the experimental results [47].…”

Section: Of 20mentioning

confidence: 99%

Developing a Mathematical Model for Nucleate Boiling Regime at High Heat Flux

Danish

Mesfer

2019

Processes

Self Cite

View full text Add to dashboard Cite

A mathematical model has been developed for heat exchange in nucleate boiling at high flux applying an energy balance on a macrolayer. The wall superheat, macrolayer thickness, and time are the parameters considered for predicting the heat flux. The influence of the wall superheat and macrolayer thickness on average heat flux has been predicted. The outcomes of the current model have been compared with Bhat’s constant macrolayer model, and it was found that these models are in close agreement corresponding to the nucleate pool boiling regime. It was concluded that the wall superheat and macrolayer thickness contributed significantly to conduction heat transfer. The average conduction heat fluxes predicted by the current model and by Bhat’s model are in close agreement for a thinner macrolayer of approximately 50 µm. For higher values of the wall superheat, which corresponds to the nucleate pool boiling condition, the predicted results strongly agree with the results of Bhat’s model. The findings also validate the claim that conduction across the macrolayer accounts for the main heat transfer mode from the heater surface to boiling liquid at high heat flux in nucleate pool boiling.

show abstract