Ahmed F Elatar R&D Associate Staff Contact elataraf@ornl.gov | 865.574.4702 All Publications Heat Pump Water Heating for Multifamily Buildings in Cold Climates to Reduce the Energy Burden for Residents with Low to Moderate Incomes Heat pump water heater enhanced with phase change materials thermal energy storage: Modeling study... Experimental results of embedded phase change material capsules for increasing the performance of a wrapped heat pump water h... Model-based Co-Simulation of Heat Pump Water Heater with Phase Change Materials Thermal Energy Storage... Propane As Working Fluid For Heat Pump Water Heaters- Opportunities And Challenges... Experimental Results Of Density Controlled Phase Change Material Capsules For Increased First Hour Rating For Heat Pump Water... Performance evaluation of a wrapped around condenser for heat pump water heater applications... Parametric Studies of Heat Pump Water Heater Using Low GWP Refrigerants... Nondimensional convection numbers modeling thermally stratified storage tanks: Richardson's number and hot-water tanks... Pressure Exchanger for Energy Recovery in a Trans-Critical CO2 Refrigeration System... Hydrodynamic behavior of wrapped coil water heater tank... Modeling of Pressure Exchanger for Energy Recovery on Trans Critical CO2 Refrigeration Cycle Risk Assessment of Catastrophic Leak Of R-452b From Package Unit into A Residential Space Reduced-order model to estimate safe flammable refrigerant charge limits for a one-room air conditioner... A hardware-based heat pump water heater design model for quasi-steady-state simulation... Increasing the efficiency of a carbon dioxide refrigeration system using a pressure exchanger... Hydrocarbons as natural refrigerants for heat pump water heating applications... METHODOLOGY FOR ESTIMATING SAFE CHARGE LIMITS OF FLAMMABLE REFRIGERANTS IN HVAC&R APPLICATIONS – PART 2... Risk assessment of catastrophic leak of R452B from packaged unit into a residential space... Flammable Refrigerant Charge Limits: Can or Should These Limits Be Higher?... IMPACT OF SURFACE TREATMENT ON THE CONDENSATE RETENTION AND FROST FORMATION ON METAL FOAMS... Effect of Insulation on the Performance of Wrapped-Coil-Tank Heat Pump Water Heater Deploying Low GWP Refrigerants... HYDROFLUOROOLEFINS AS REFRIGERANTS FOR HEAT PUMP WATER HEATING APPLICATIONS... 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... Pagination Current page 1 Page 2 Next page ›› Last page Last » 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
