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Ehsan Moallem

Ehsan Moallem


Ph.D. Mechanical Engineering
Oklahoma State University, 2012

M.S. Mechanical Engineering
University of Tehran, Iran, 2007

B.S. Mechanical Engineering
University of Tehran, Iran, 2004

Research Interests

  • Air-Conditioning (HVAC)
  • Computational Fluid Dynamics (CFD)
  • Experimental measurements of flow
  • Microfluidsand Microchannels
  • Thermal storages
  • Refrigeration cycles and heat pumps
  • Cold and hot air jets
  • Turbulencemodeling
  • Heat transfer and two phase flow in coils
  • Design of (compact) heat exchangers

Awards and Recognition

  • Received full scholarship at Oklahoma State University (2008-2012)
  • Received full scholarship at University of Tehran (1998-2004)
  • Ranked 417th in National Mechanical Engineering Graduate Program Entrance Exam among more than 12,000 participants, Tehran, Iran (2004)
  • Ranked 872th in National Undergraduate University Entrance Exam among more than 400,000 participants from the whole country, Tehran, Iran (1998)
  • Vice president of ASHRAE student branch at Oklahoma State University (2011-2012)
  • Won the 3rd award in student paper competition in international Purdue HVAC conference (2012)
  • Award winner for the best paper of the year in International Journal of Refrigeration (2012)
  • Reviewer of journals: Int. J. Heat Mass Transfer, Int.J.Refrigeration, Heat Transfer Eng. (2012-13)

Recent Publications

  • Padhmanabhan S.K., Fisher D.E., Cremaschi L.and E.Moallem.(2011) Modeling non-uniform frost growth on a fin-and-tube heat exchanger. International Journal of Refrigeration, 34, 8: 2018-2030.
  • Moallem E., Hong T., CremaschiL. and D.E. Fisher. (2013) Experimental Investigation of Adverse Effect of Frost Formation on Microchannel Evaporators, Part 1: Effect of Fin Geometry and Environmental Effects. International Journal of Refrigeration, 36, 6: 17621775.
  • Moallem E., Hong T., Cremaschi L.andD.E.Fisher.(2013) Experimental Investigation of Adverse Effect of Frost Formation on Microchannel Evaporators. HVAC & R Research, 19, 4: 347-362.
  • Moallem, E., Hong T., Cremaschi L.andD.E. Fisher.(2013) Developing Empirical Correlations for Frost Thickness and Air Face Velocity Degradation for Microchannel Heat Exchangers Used in Heat Pump Applications under Frosting Condition.HVAC & R Research,19,7:779787.
  • Moallem, E.,Cremaschi L., Fisher D.Eand T. Hong. (2017) Effects of frost growth onlouvered folded fins of microchannel heat exchangers on the time-dependent air side convective heat transfer coefficient. Experimental Thermal and Fluid Science, 88, 326-335.


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