IIT patna logo

Thermal and Fluid Transport Laboratory

Indian Institute of Technology Patna

Multiphase Heat Transfer

Multiphase heat transfer involves the exchange of heat energy during phase change and is pivotal for efficient thermal management in energy systems, aerospace, and electronics cooling, among others. Our research focuses on understanding phase-change phenomena such as boiling and condensation and analyzing how interfacial dynamics, bubble nucleation, and thermal boundary layers affect heat transfer. Using advanced experimental techniques, simulations, and machine learning, we explore ways to enhance heat transfer through engineered surfaces, innovative coatings, and active techniques such as in-situ deposition. These efforts aim to optimize critical heat flux (CHF) and heat transfer coefficients (HTC), driving advancements in energy systems, electronics cooling, and thermal management technologies.

Related Publications

Numerical Heat Transfer, Part B: Fundamentals, 2023

Upadhyay, A., Hazra, S. K., Assam, A., & Raj, R.

Review of the current status and the potential of machine learning tools in boiling heat transfer.

Read More →

International Journal of Heat and Mass Transfer, 2023

Upadhyay, A., Kumar, B., Kumar, N., & Raj, R.

Simultaneous enhancement of critical heat flux and heat transfer coefficient via in-situ deposition of ionic liquids during pool boiling.

Read More →

Cell Reports Physical Science, 2021

Sinha, K. N. R., Kumar, V., Kumar, N., Thakur, A., & Raj, R.

Deep learning the sound of boiling for advance prediction of boiling crisis.

Read More →

International Journal of Heat and Mass Transfer, 2020

Kumar, N., Sinha, K. N. R., Raza, M. Q., Verma, A., Seth, D., Jasvanth, V. S., & Raj, R.

Design, fabrication, and performance evaluation of a novel orientation independent and wickless heat spreader.

Read More →

International Journal of Heat and Mass Transfer, 2019

Sinha, K. N. R., Ranjan, D., Raza, M. Q., Kumar, N., Kaner, S., Thakur, A., & Raj, R.

In-situ acoustic detection of critical heat flux for controlling thermal runaway in boiling systems.

Read More →

International Journal of Heat and Mass Transfer, 2019

Sharma, D., Ghosh, D. P., Saha, S. K., & Raj, R.

Thermohydraulic characterization of flow boiling in a nanostructured microchannel heat sink with vapor venting manifold.

Read More →

International Journal of Heat and Mass Transfer, 2018

Kumar, N., Raza, M. Q., Seth, D., & Raj, R.

Aqueous ionic liquid solutions for boiling heat transfer enhancement in the absence of buoyancy induced bubble departure.

Read More →

Scientific Reports, 2016

Raza, M. Q., Kumar, N., & Raj, R.

Surfactants for bubble removal against buoyancy.

Read More →