People behind
the research.

Cosmin Mihai Udroiu is a Postdoctoral Researcher in Mechanical Engineering at Oklahoma State University. His research focuses on advanced thermal systems, refrigeration, heat transfer, and the development of more efficient and environmentally sustainable heating and cooling technologies.

He earned his Ph.D. from Universitat Jaume I in Spain, where his research focused on ultra-low-temperature refrigeration systems capable of reaching temperatures as low as −80 °C. This work originated from his undergraduate thesis, which was recognized as the second-best undergraduate thesis in Spain, and later developed into his doctoral research. The project addressed the limitations of conventional ultra-low-temperature systems and investigated the replacement of high-global-warming-potential refrigerants, such as R23, with lower-impact alternatives. He also investigated high-temperature vapor-compression systems capable of reaching temperatures of approximately 250 °C while mitigating refrigerant degradation.

His current research at Oklahoma State University includes the optimization of vapor-compression systems and heat exchangers for low-GWP refrigerants, as well as experimental research on flow boiling, advanced imaging techniques, and two-phase heat-transfer phenomena.

Yash Trivedi is a PhD student in Mechanical Engineering at Oklahoma State University after previously completing his BSME at Purdue University. His research focuses on two-phase heat transfer and flow boiling for high-heat-flux electronics cooling, with an emphasis on using computer vision and machine learning to characterize boiling behavior and predict critical heat flux. In his free time, Yash Trivedi enjoys playing soccer and golf, as well as cycling.

Muhammad Shummas Humayun is a PhD student in Mechanical Engineering at Oklahoma State University (OSU). He completed his master’s degree in Thermal Energy Engineering from NUST, Pakistan. His research focuses on developing a flexible heat pump testing platform with refrigerant injection to characterize system and component performance under controlled operating conditions. In his free time, he usually enjoys playing the guitar and listening to music.

Tajwar Haque is a PhD student in Mechanical Engineering at Oklahoma State University, where he completed his M.S. in Mechanical Engineering in Fall 2025. His previous research focused on advanced ground heat exchanger design and modeling, including the development of GLHEPro. Building on his experience in heat exchanger and HVAC system modeling, his current research explores the constrained redesign and multi-objective optimization of heat exchangers and unitary HVAC systems for next-generation refrigerants. In his free time, Tajwar Haque enjoys gravel biking, playing soccer, and going to the gym.

Rasheed Shittu is a Ph.D. student in Mechanical Engineering at Oklahoma State University. He holds a B.Eng. in Mechanical Engineering from the University of Ilorin and an M.Eng. in Mechanical Engineering from the Federal University of Technology Akure, Nigeria. His research interests include heating, ventilation, air conditioning, and refrigeration (HVAC&R), thermal system modeling and simulation, advanced controls, and energy-efficient heat pumps using refrigerants with low global warming potential. His current work focuses on developing advanced control strategies to improve the energy efficiency and reliability of HVAC&R systems. In his free time, Rasheed Shittu enjoys reading the news and playing soccer.

Pouria Moghimi Ghadikolaei is a 4th year PhD student in mechanical engineering at Oklahoma State University. He completed his master’s degree in mechanical engineering with a focus on sustainable thermal systems and was later certified as a Green Energy Professional. Over the last four years, his research has focused on techno-economic feasibility assessment of thermal energy storage (TES) in residential buildings, to evaluate component-, system-, building-, and electricity-grid-level benefits of TES.

Muhammad Hasanat Khan is an MS student in Mechanical Engineering at Oklahoma State University. He previously completed his B.S. in Mechanical Engineering in Pakistan. His research focuses on experimental testing and semi-physics-based modeling of scroll compressors, with an emphasis on characterizing compressor performance under different operating conditions and developing models to predict key compressor parameters. In his free time, Muhammad Hasanat Khan enjoys playing cricket and occasionally playing badminton.