Academic Credentials
  • Ph.D., Mechanical Engineering, Kansas State University, 2004
  • M.S., Mechanical Engineering, Amirkabir University of Technology, Iran, 1998
  • B.S., Mechanical Engineering, Sharif University of Technology, Iran, 1995
Licenses & Certifications
  • Professional Engineer Mechanical, California, #35422
  • 40-Hour Hazardous Waste Operation and Emergency Response Certification (HAZWOPER)
  • Certified Fire and Explosion Investigator (CFEI)
Professional Honors
  • Fellow, American Society of Heating, Refrigerating and Air Conditioning Engineers (ASHRAE), 2026
  • Distinguished Service Award (DSA), American Society of Heating, Refrigerating and Air Conditioning Engineers (ASHRAE), 2017
  • New Investigator Award, American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE), 2009
  • Instructor Award, Mechanical Engineering, Kansas State University, 2004
Professional Affiliations
  • American Society of Heating, Refrigerating and Air Conditioning Engineers (ASHRAE) Committee Member
  • • Technical Activities Committee (TAC) section 1 head, 2015-2019
  • • TC 1.3; Heat Transfer and Fluid Flow (chair 2013-2015, vice chair 2013-2015, vice chair 2011- 2013, program subcommittee chair 2008-2011, voting/corresponding member since 2011)
  • • TC 8.5; Liquid to Refrigerant Heat Exchangers (chair 2008-2010, program subcommittee chair 2005-2008, voting/corresponding member since 2011)
  • • TC 8.4; Air-to-Refrigerant Heat Transfer Equipment (corresponding member since 2011)
  • • TC 5.6; Control of Fire and Smoke (corresponding member since 2011)
  • • TC 1.13; Optimization (corresponding member since 2009)
  • • TC 3.1; Refrigerants and Secondary Coolants (corresponding member since 2014)
  • • SSPC 188 (Standard); Legionellosis: Risk Management for Building Water Systems (2020-2024)
  • • Local Chapter, Orange Empire, CA (2012-present)
  • American Society of Mechanical Engineers (ASME) Committee Member
  • • Associate Editor; Journal of Thermal Science and Engineering Applications (2015-2019)
  • • HTD K10; Heat Transfer Equipment (2007-present)
  • • HTD K16; Heat Transfer in Electronic Equipment (2008-2010)
  • • Local Chapter, Orange County, CA (2012-present)
  • National Fire Protection Association (NFPA)
  • • NFPA 87; Standard for Fluid Heaters (member since 2012)
  • American Society of Automotive Engineers (SAE), member since 2001
  • International Association of Wildland Fire (IAWF), member since 2016
  • Associate Editor: Heat Transfer Engineering, an International Journal (2020-present)
Languages
  • Persian

Dr. Jokar specializes in thermodynamics, fluid mechanics, heat transfer, and heating, ventilation, air-conditioning and refrigeration (HVAC&R) systems. He has more than 22 years of work experience both in industry and academia. 

At Exponent, Dr. Jokar has worked on a variety of projects with applications related to air conditioning and refrigeration systems, including low Global Warming Potential (GWP) flammable refrigerants, data center cooling and ventilation, geothermal HVAC systems, compressor failures, refrigerators and vending machines, supermarket and industrial coolers and freezers, food facility ammonia systems, heat transfer equipment, valve design, natural gas and solar power generation plants, boilers, furnaces, kitchen ovens, household washers and dryers, hot water heaters, pipe freezes and bursts, and insulation materials.

Dr. Jokar has extensively investigated and assessed smoke and thermal damage and fire particulate (e.g., ash, char, soot) distribution and contamination from wildfires and structure fires, as well as their impact on building materials and contents. He has also collaborated on other multi-disciplinary projects involving residential and industrial fires, vehicle thermal failures, carbon monoxide poisoning, mold/odor issues in automotive and residential cooling systems, thermal management of electronics and power cables, heat transfer analysis of burn injuries, and oil refinery design and contamination issues. His work experience includes experimentation as well as simulation using computational thermal/fluid dynamics (CFD) techniques. He has testifying experience with several cases in and out of the state of California.

In academia, Dr. Jokar conducted research for industry-sponsored projects and obtained competitive grants as the principal investigator. He conducted an experimental study of carbon dioxide condensation in chevron-angle plate geometry exchangers sponsored by the American Society of Heating, Refrigerating and Air Conditioning Engineers (ASHRAE), as well as a computational analysis and experimental design of a microchannel electronics cooler for high-power semiconductor diode laser applications sponsored by Washington Technology Center. Dr. Jokar also conducted comprehensive research during his doctoral study to evaluate and analyze a dual-loop automotive heat pump-air conditioning system. He was the recipient of the ASHRAE New Investigator Award to study heat transfer and fluid flow of nanofluids in micro/mini-channel heat exchangers. He developed several courses and labs on thermo/fluids, including advanced courses on thermal systems and electronics cooling.