Dr. Michael Ohadi

Director, Professor of Mechanical Engineering, and CEEE Founding Faculty Member

Dr. Ohadi is a CEEE founding faculty member and founder of the Advanced Heat Exchangers and Process Intensification Consortium. He is internationally recognized for his research in heat and mass transfer and smart energy systems . He is the inventor/co-inventor of eight issued U.S. patents and has published more than 150 refereed technical publications. Dr. Ohadi has actively participated in promoting the support for fostering technological innovation and entrepreneurship. In 2002, he was featured in Washington Post for his efforts involving innovation and technology transfer. From 2003 to 2010 he was on leave assignment to the Petroleum Institute (Abu Dhabi) where served as Director of Mechanical Engineering (2003-2006) and Provost and Acting President (2006 to 2010). He is a fellow member of both ASME and ASHRAE and has won numerous awards from both societies.

Dr. Amir Shooshtari

Research Associate Professor

Amir H. Shooshtari is an Associate Research Professor in the Advanced Heat Exchangers and Process Intensification Lab at the University of Maryland, College Park. He received his Ph.D. in 2004 in Mechanical Engineering. Since 2005, he has been a member of research faculty at the University of Maryland. His research interests include design and development of advanced thermofluid processes, electronic cooling, two-phase flow and fluid flow in porous media. Dr. Shooshtari is the author or co-author of over 20 publications in international journals and conferences. He is a member of ASHARE and ASME. He is recipient of ASHRAE Grant-in-aid Fellowship (2003–2004) and ASHRAE National Capital Chapter Scholarship Award (2003).

Dr. Ratnesh Tiwari

Assistant Research Professor

Dr. Ratnesh Tiwari received his Ph.D. in Mechanical Engineering from University of Maryland in 2015. He received his undergraduate degree from the Indian Institute of Technology (IIT) Kanpur, India in 2006. Prior to joining the University of Maryland, Dr. Tiwari has worked in the process and oil and gas industry for more than six years in the area of Heat Exchanger design and process development. He has extensive experience of designing experimental loops related to thermo fluidic systems, microchannel heat exchangers and micro reactor design and building energy modeling. He is currently involved in design and development of low cost microchannel heat exchangers for industrial system. He is also working on techno economic analysis and market analysis of the ongoing research projects.

Dr. Andres Sarmiento

Postdoctoral Faculty Research Associate

Dr. Andres Sarmiento is a Postdoctoral Faculty Research Associate in the Advanced Heat Exchangers and Process Intensification Lab at the University of Maryland (UMD), College Park. He received his Ph. D and Master’s in 2020 and 2016, respectively, in Mechanical Engineering at the Federal University of Santa Catarina, Brazil. He received his undergraduate degree from the Salesian Polytechnic University, Ecuador in 2013. Before joining UMD he worked on the development of novel HX assisted by two-phase thermosyphons and compact heat exchangers for the oil and gas industry. Also, he worked as a research engineer for the National Institute for Renewable Energy and Energy Efficiency (INER) focused on solar and wind energy assessment. His research interests include the design and development of novel HX, electronics cooling, single and two-phase flow for process intensification, renewable energies, and energy efficiency.

Dr. Roxana Family

Postdoctoral Faculty Research Associate

Dr. Roxana Family received her Ph.D. in Mechanical Engineering from Ozyegin University in Turkey and her Bachelor and Master of Science in Materials Engineering from Iran. She got her second Bachelor of Art in English Language Interpretation and Translation from Iran too. She worked in Shahed University Research Center (Nanotechnology and Dentistry Center) as a researcher for two years, and she was lecturer in the Materials engineering department of Islamic Azad University in Iran for three semesters before starting her Ph.D. In the duration of her Ph.D., she worked on Radiative cooling by spectrally selective materials for buildings in the Center for Energy, Environment and Economy (CEEE/ECEM). She is a Research Associate in the Advanced Heat Exchangers and Process Intensification lab at the University of Maryland, College Park since 2021 and working on “Energy Audit of Buildings” and “Thermal management of data centers”. Her research interests include energy efficiency in the buildings, renewable energies, heat transfer, and advanced materials. Dr. Family is the author or co-author of 15 publications in international journals and conferences. She is a member of ASHARE and AEE. She is recipient of financial support from INIC (Iranian Nanotechnology Initiative Council) for the project entitled “Hydroxyapatite Nanocomposite Coating on Titanium Dental Implants” which she became the best presenter for this project in the 1 st National Conference on Nanomaterials and Nanotechnology, Iran, and she also has an Iranian patent for it.


Zhengda Yao

Zhengda Yao joined S2TS lab as a Ph.D. student in Mechanical Engineering in 2019 after completing his B.S. in Harbin Engineering University. In the fourth year of his Undergraduate degree, he conducted simulations based on turbulent flow.  In University of Maryland, his field is about computational fluid dynamics and experiments about additive manufacturing. Currently, he is working on topology optimizations of heart exchangers with CFD Software.  

Harsimranjit Singh

Harsimranjit received his bachelor’s degree in Aerospace Engineering from PEC University of Technology, Chandigarh, India. He pursued his Master’s degree in mechanical engineering at New Jersey Institute of Technology, Newark.  Before joining UMD as a doctoral student, he worked on synthesis and characterization of fuel cell cathode catalyst material. Primarily, he worked on the characterization of stability and durability of metal-free catalysts for oxygen reduction reactions in alkaline medium.  His research focus at UMD  is ultra-high flux two-phase cooling of laser diodes.

Veeresh Ayyagari

Veeresh received his Bachelors degree from SVNIT, Surat India in 2015. He worked at Larsen & Toubro, Mumbai for 2 years as a Mechanical Design Engineer. He joined University of Maryland in 2017 to pursue a masters in mechanical engineering. His master’s thesis was focused on the design of Atmospheric Water Harvesters. Veeresh joined S2TS as a Graduate Research Assistant in spring 2021 to pursue a Phd in Mechanical Engineering.  At S2TS he will be working on Thermal energy storage systems and Additive manufacturing of Composite Polymer Heat Exchangers.

Soma Roy

Soma obtained her BS (Bachelor of Science) degree in Mechanical Engineering in 2021

from Bangladesh University of Engineering & Technology (BUET), with her

undergraduate thesis focusing on heat transfer enhancement using nanofluid jet

impingement. After working in a corporate role at BAT Bangladesh, she joined

University of Maryland in Fall 2021 to pursue her PhD in Mechanical Engineering. At

S2TS, she is currently working on developing a heat exchanger model for an advanced

electric propulsion system.


Rohit Choudhary

Rohit is currently working as a Graduate Research Assistant
for the S2TS lab, in the Energy & Sustainability Data
Department as a Data Assistant. He is pursuing his Master’s
in Software Engineering from the University of Maryland. He
received his Bachelor’s degree in Computer Science from
Symbiosis University, India.

Winston Wang

Winston graduated with his B.S. in Mechanical Engineering at UMD in 2020. And he is currently pursuing his M.Eng. in Mechanical Engineering focusing on Energy and the Environment. He is currently working as a Graduate Assistant in the S2T2 lab for the Maryland Executive Order on energy saving on all Maryland state buildings and he is working directly with the Department of General Services on energy-related data.

Aditya Ramnarayan

Aditya received his B. Tech (Bachelor of Technology) degree in Mechanical Engineering in
2020 from the Manipal Academy of Higher Education (MAHE) with his undergraduate thesis
titled "Fluid-Structure Interactions (FSI) and its applications in Energy Harvesting". He is
currently pursuing his MS in Mechanical Engineering at the University of Maryland. At S2TS,
he is currently working in the Energy Audits Team focusing on reducing energy consumption
and increasing energy efficiency in buildings across the State of Maryland.

Alibek Bekenov

Alibek Bekenov is a master’s student pursuing a degree in Project Management. Working with the S2TS team as an energy audit engineer. He got the incredible opportunity to become familiar with HVAC systems, their specifications, and ways to improve the energy efficiency of a property. His previous background includes significant experience in mobile network engineering and project management.

Yash Jatin Oza 

Yash is currently pursuing his M.Eng in Mechanical Engineering. He has received his B.Tech in
Mechanical Engineering from Nirma University, India in 2018 and Diploma in Mechanical
Engineering from Gujarat Technological University, India in 2015. He also served as system
integrator in the R & D Department of Blue Star Limited, India from 2018 to 2021, where he
developed room Star rated room Air-Conditioners for the domestic market.   He is
currently working in the Energy Audits group with focus to reduce the energy consumption of
Maryland state owned buildings. Apart from that, he is an aviation enthusiast and likes to listen
to some slow music during his leisure time.


Jordan Higgins

Jordan is currently working as an Undergraduate Research

Assistant and plans on graduating May of 2022 with a B.S.

in Mechanical Engineering. As a part of his undergraduate

work, he is working on energy auditing and savings in

Maryland state buildings.

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