We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Predicting Conduction Heat Flux through Macrolayer in Nucleate Pool Boiling.
- Authors
Danish, Mohd; Al Mesfer, Mohammed K.; Ansari, Khursheed B.; Hasan, Mudassir; Amari, Abdelfattah; Azeem, Babar
- Abstract
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.
- Subjects
EBULLITION; NUCLEATE boiling; HEAT flux; HEAT conduction; HEATS of vaporization; HEAT transfer
- Publication
Energies (19961073), 2021, Vol 14, Issue 13, p3893
- ISSN
1996-1073
- Publication type
Article
- DOI
10.3390/en14133893