prof.dr. S. Vanapalli (Srini)

Srinivas Vanapalli’s academic roots are from the Indian Institute of Technology, Madras with a bachelor degree in Mechanical Engineering. He later received an electrical engineering master’s degree (cum laude) from the University of Twente. He received his PhD title for 'High frequency operation and miniaturization aspects of cryocoolers' at UT, a major part of this work is carried out at National Institute of Standards and Technology, Boulder, USA.

Srini has a mix of industrial and academic experience and has worked so far in three continents. His research interest is cryogenics where disciplines thermodynamics, material sciences, fluid, and heat transfer meet. He received the 2019 Mulholland award for excellence in cryogenic engineering which is given to recognize significant achievement in a particular areas of cryogenics.

Srini leads the Applied Thermal Sciences lab within the Energy Materials and Systems cluster where his team explores fundamentals and applications of thermal sciences in both space and time domains. The core competence of his group is heat and mass transfer phenomena in the cryogenic temperature range from 200 K to 4 K. His approach combines formulation of conceptual models, experiments and numeric. The topics of his research are problem-driven and his team seek to solve grand societal challenges related to energy and life sciences.

Srini is successful in obtaining grant income from various sources, both government and industry. So far he generated 2.9 million euro income since 2015.

For more info about Srinivas Vanapalli on the 'Featured Scientists' page, click below:

Chemistry

# Cooling
# Cryogenics
# Heat Transfer

Engineering & Materials Science

# Cooling
# Cryogenics

Physics & Astronomy

# Coolers
# Cooling
# Tubes

Faculty of Science and Technology (TNW), Energy, Materials and Systems (EMS)

RESEARCH INTERESTS

Thermodynamics
Heat transfer, Thermal properties
Evaporation
Cryogenic technology & Cryogenics, Liquid nitrogen cooling
Cryo-transmission electron microscopy, sample preparation
Cryoablation

RESEARCH HIGHLIGHTS

please see the home page of Applied Thermal Sciences lab

Schremb, M., Kalter, M. , & Vanapalli, S. (2023). Development of a lab-device for evaporation-free supply of pure liquid nitrogen for droplet- and jet-generation. Scientific reports, 13(1), [6421]. https://doi.org/10.1038/s41598-023-31955-4

Vanapalli, S., & Joy, M. (2022, Nov 21). Cryogenics in the pharmaceutical industry: drug design and bioavailability improvement. https://iifiir.org/en/encyclopedia-of-refrigeration/cryogenics-in-the-pharmaceutical-industry-drug-design-and-bioavailability-improvement

Zhang, Z., Spijkers, R. M. A. , Schremb, M. , & Vanapalli, S. (2022). Heat and mass transfer during levitation of a liquid nitrogen Leidenfrost droplet on a water pool. IOP Conference Series: Materials Science and Engineering, 1240, [012157]. https://doi.org/10.1088/1757-899X/1240/1/012157

Vanapalli, S., Kalter, M. , & van Limbeek, M. A. J. (2022). Heat Transfer in an Eccentric Gas Gap Annulus. Paper presented at 22nd International Cryocooler Conference, ICC 2022, Bethlehem, Pennsylvania, United States. https://cryocooler.org/resources/Documents/C22/303.pdf#page=1

Anand, A. , Purandare, A. S. , & Vanapalli, S. (2022). Performance improvement of a PCM cold box by two bilayers configuration. International Communications in Heat and Mass Transfer, 134, [105978]. https://doi.org/10.1016/j.icheatmasstransfer.2022.105978

Jagga, S. (2021). Cooling dynamics in thermal quenching for cryopreservation. [PhD Thesis - Research UT, graduation UT, University of Twente]. University of Twente. https://doi.org/10.3990/1.9789036551977

Purandare, A. S., van Lohuizen, S. W., Spijkers, R. M. A. , & Vanapalli, S. (2021). Experimental and numerical study of insulation packages containing dry ice pellets. Applied thermal engineering, 186, [116486]. https://doi.org/10.1016/j.applthermaleng.2020.116486

Jagga, S. , Holland, H. J. , & Vanapalli, S. (2021). Systematic approach to determine the transient cooling power and heat leak of a commercial pulse tube cryocooler. Cryogenics, 113, [103228]. https://doi.org/10.1016/j.cryogenics.2020.103228

Jagga, S. , & Vanapalli, S. (2020). Cool-down time of a polypropylene vial quenched in liquid nitrogen. International Communications in Heat and Mass Transfer, 118, [104821]. https://doi.org/10.1016/j.icheatmasstransfer.2020.104821

van Limbeek, M. A. J. , Nes, T. H. , & Vanapalli, S. (2020). Impact dynamics and heat transfer characteristics of liquid nitrogen drops on a sapphire prism. International journal of heat and mass transfer, 148, [118999]. https://doi.org/10.1016/j.ijheatmasstransfer.2019.118999

See all research output of this employee

What defines me as a teacher?

Experiment with better ways to achieve success
Value the students and respect them.
Inspire students by drawing parallels between the subject matter and students everyday experiences. Also walking through several examples.
Belief in mentoring students and showing them the path to learn themselves.
Provide thought provoking examples (not just a text book).

Bachelor

Master

Applied Physics

Courses in the current academic year are added at the moment they are finalised in the Osiris system. Therefore it is possible that the list is not yet complete for the whole academic year.

My research is supported by national, european funding agencies and industry.

Funding entities: NWO-TTW, EUreka, TKI-HTSM, TKI-Urban Energy, ZonMW, ESA, Air Liquide

Project	Funding source	Amount (Euros)	Period	Role of the PI
CETFlow	EU	110k	2019-2022	Co-applicant
CryoON	NWO-TTW	810k	2016-2021	Main applicant
CryoSponge	TKI-HTSM	660k	2019-2023	Only applicant
Cooling Leidenfrost	TKI-HTSM	770k	2020-2024	Only applicant
High frequency Stirling	TKI-Urban energy	186k	2019-2020	Only applicant
Smartbox	Air Liquide	200k	2019-2021	Only applicant
Cryopsy	ZonMW/DBT	25k	2018-2020	Main applicant
Internal grant: University of Twente	SBE/UT	40k	2018-2019	Only applicant
Faculty of Science and Technology, University of Twente	S&T/UT	160k	2019	Package to support tenure track

various industrial consultancy activities.

What drives me as a scientist is the exciting wealth of knowledge and surprises I come across in my research, either in the lab or in discussions with my team. We built a little cryogenic fluids playground and often me and my students try things out of curiosity, very often transforming into serious multi-year projects. I believe in sharing this curiosity with the general public and to high-school students, with a hope to ignite the STEM flame in them. My outreach efforts were recognized recently by the MESA+ Dave Blank Outreach Award.

News feature in Physicsworld (IOP publishing)

09 July 2020: Why insulated metals cool down faster than their bare counterparts

https://physicsworld.com/a/why-insulated-metals-cool-down-faster-than-their-bare-counterparts/

30 December 2019: Study of liquid-nitrogen droplets gives new insight into cryogenic spray-cooling

https://physicsworld.com/a/study-of-liquid-nitrogen-droplets-gives-new-insight-into-cryogenic-spray-cooling/

17 December 2019 UToday: Freeze!

https://www.utoday.nl/science/67723/freeze

August and October 2019 COLDFACTS issue (https://cryogenicsociety.org/cold_facts/)

Mulholland memorial award for Srinivas Vanapalli

Biopsy frozen in seconds in the operating room

Dave Blank Outreach Award to Srinivas Vanapalli

+31534894839