Dr. Mohamed G. Gado is an assistant professor at Helwan University. He received his Ph.D. in Energy Resources Engineering from the Egypt-Japan University of Science and Technology (2023) and an international exchange at Tokyo Institute of Technology (TiTech), Japan, and BSc (highest honors) and MSc degrees in mechanical power engineering from Helwan University, Egypt. He developed and examined innovative thermal energy storage systems, cooling, desalination, and atmospheric water harvesting systems as a postdoctoral researcher at Consiglio Nazionale delle Ricerche (CNR)-ITAE, Messina, Italy. Currently, he is a JSPS Research Fellow at the National Institute for Materials Science (NIMS) at Tsukuba, Japan, developing novel magnetic refrigeration systems for hydrogen liquefaction. 

His research portfolio has focused on sorption-based applications, e.g., adsorption cooling, desalination, atmospheric water harvesting, thermal energy storage, green hydrogen, magnetic refrigeration, and hydrogen liquefaction. 

Research Interests:

• Sustainable cooling and desalination: Adsorption cooling, adsorption desalination, and atmospheric water harvesting systems (AWH).

• Performance enhancement and materials innovation: Utilization of triply periodic minimal surfaces (TPMS) and 3D printing for thermal system optimization and high-performance energy applications.

• Renewable energy and hydrogen technologies: Hydrogen production from renewable energy, hydrogen liquefaction, and integration of renewable energy in thermal systems.

• Thermal energy storage and management: Latent heat and thermochemical (sorption) storage, phase change materials (PCM) for air-conditioning energy savings through free cooling, electronic thermal management/heat transfer augmentation, and advanced heat recovery/adsorption heat transformers.

• Advanced cooling technologies: Cryogenic and magnetic refrigeration, magnetic hydrogen liquefaction, adiabatic demagnetization, thermoacoustic cooling, sorption cryocooling, absorption, and ejector cooling.

Dr. Mohamed Gado has been included in Stanford University's list of the "Top 2% of Scientists in the world" for 2025. 

• Hydrogen has been increasingly used as a clean energy carrier for decarbonization and global energy transition.

• Different hydrogen carriers have been widely utilized, including liquefied hydrogen, ammonia, methanol, liquid organic hydrogen carriers (LOHC), and compressed gaseous hydrogen.

• Hydrogen possesses a high gravimetric energy density of 33.3 kWh/kg (LHV of 120 MJ/kg).

• Liquid hydrogen has a much higher volumetric energy density compared to gaseous hydrogen (about 1/800th the volume of gaseous hydrogen), making it efficient for storage and transportation.

• However, liquefied hydrogen has an extremely low liquefaction temperature of about 20 K, representing an energy-intensive liquefaction process.

• Typical liquefaction techniques (Joule-Thomson expansion or turbine expansion, including the Linde-Hampson cycle, the Claude cycle, the Brayton cycle, the Collins cycle, or the mixed refrigerant cycle).

• They consume about 10-20 kWh/kg LH2, based on commercial estimations (the ideal thermodynamic hydrogen liquefaction SEC is about 3.1 kWh/kg LH2).