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Mark W. Davis

Mark W. Davis is a mechanical engineer in the Heat Transfer and Alternative Energy Systems Group of the Energy and Environment Division (EED) of the Engineering Laboratory (EL) at the National Institute of Standards and Technology (NIST). Mark Davis joined the Heat Transfer and Alternative Energy Systems Group in June 2000 after completing his mechanical engineering master's degree at Virginia Polytechnic Institute and State University. Mr. Davis was also a Cooperative Education student with the group from 1995 to 1998.

Since 2008, Mr. Davis has led a project to develop a performance rating methodology for Micro-Combined Heat and Power (Micro-CHP) devices. Before the Micro-CHP effort, he worked on a similar project to develop a rating methodology for residential fuel cell systems, which are a subset of Micro-CHP. The performance rating will communicate the real-world performance of such systems to potential consumers. The electrical and thermal performance of five Micro-CHP devices (3 fuel cells, 1 internal combustion engine, and 1 Stirling engine) have been measured. Using the measured performance data from these devices, Mr. Davis calibrates predictive performance models, which are subsequently implemented in building energy models to analyze Micro-CHP’s potential energy, environmental, and economic benefits.

The measured performance data and analyses of the predicted operation of Micro-CHP is used in the development of a test standard to measure their performance. Mr. Davis is the Chair of ASHRAE’s Standards Project Committee (SPC) 204: Method of Test for Rating Micro Combined Heat and Power Devices. He also serves as the Standards subcommittee chair for ASHRAE TC 1.10 on Cogeneration and sits on ASME's PTC-50 committee for Performance of Fuel Cell Power Systems. He also contributes his experience measuring and modeling Micro-CHP devices to IEA/ECBCS Annex 54: Integration of Micro-Generation and Related Energy Technologies in Buildings, and he was active in Annex 54’s predecessor, Annex 42: The Simulation of Building Integrated Fuel Cell and Other Cogeneration Systems.

Mr. Davis is also tasked with performing short-term characterization of building-integrated photovoltaic modules on the group's mobile solar tracking test facility. Since 2000, the performance of more than 20 modules has been measured with respect to irradiance, temperature, solar spectrum, and angle of incidence. This information has been used to predict the long-term performance of like modules for comparison with long-term measurements.

Mark W. Davis


Mechanical Engineer
Energy and Environment Division
Heat Transfer and Alternative Energy Systems Group


Virginia Polytechnic Institute, M.S., Mechanical Engineering, 2000

Virginia Polytechnic Institute, B.S., Mechanical Engineering, 1998


Phone: 301-975-6433