Ahmed Elatar R&D Associate Staff Contact ELATARAF@ORNL.GOV All Publications Evaluation of flammable volume in the case of a catastrophic leak of R-32 from a rooftop unit HYDROCARBONS AS NATURAL REFRIGERANTS FOR HEAT PUMP WATER HEATING APPLICATIONS Investigation of low GWP Flammable Refrigerant Leak from Rooftop Units Performance optimization of CO2 heat pump water heater Characterization of Wrapped Coil Tank Water Heater during Charging/Discharging Development and validation of quasi-steady-state heat pump water heater model having stratified water tank and wrapped-tank condenser Model-based optimizations of packaged rooftop air conditioners using low global warming potential refrigerants... R290 (Propane) and R600a (Isobutane) as Natural Refrigerants for Residential Heat Pump Water Heaters R-1234yf and R-1234ze(E) as Low GWP Refrigerants for Residential Heat Pump Water Heaters... Pagination First page « First Previous page ‹‹ Page 1 Current page 2 Key Links Google Scholar ORCID Organizations Energy Science and Technology Directorate Buildings and Transportation Science Division Building Technologies Research Section Building Equipment Research Group User Facilities Building Technologies Research and Integration Center