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Engineering Laboratory / Building Energy & Environment Division

HVAC&R Equipment Performance Group

Projects/Programs

Displaying 1 - 4 of 4
heatpump fan

Fault Detection and Diagnostics for Air-Conditioners and Heat Pumps

Ongoing
Objective - Develop fault detection and diagnostic (FDD) methods and measurement tools to ensure air conditioners (ACs) and heat pumps (HPs) perform as designed throughout their lifetime and develop a testing and rating methodology to assess relative merits of different commercial FDD products. What

Flammability Metrics for New Low-GWP Refrigerants

Ongoing
Objective: To develop the capability to measure and predict the burning velocity of mixtures of low-Global Warming Potential (GWP) refrigerants to allow the ranking of the mixtures in terms of their flammability, to assist in the selection and implementation of the best replacements for high-GWP
Researchers use novel fluids with nanoparticles to improve the efficiency of chillers that cool large buildings.

Low-GWP Refrigerants for High-Efficiency HVAC&R Equipment

Ongoing
Objective - To develop heat transfer and system performance information that will assist in the selection and implementation of the best replacements for high-GWP hydrofluorocarbon (HFC). What is the new technical idea? Most of the currently used HFC refrigerants will be phased out or phased down
Measurement of the air velocity profile exiting a section of the rooftop air-conditioning unit's heat exchanger

Space-Conditioning Options for Energy-Efficient Buildings

Ongoing
Objective: Develop and deploy the measurement science to support the development and implementation of the most efficient and cost-effective space-conditioning options for energy-efficient buildings. What is the new technical idea? (Tasks 1-4): The unique aspects of high-efficiency homes require new