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Research areas
Rising cooling demand and decarbonization targets require thermal systems that are both efficient and intelligent. Our lab works across four themes — from heat pump optimization and heat exchanger design to data center cooling and AI-based control.
Heat pump systems & Optimization
Heat pump systems & Optimization
Design and optimization of water-source, ground-source, and solar-assisted heat pumps. TRNSYS-based dynamic simulation and multi-objective control strategies for maximizing COP and system efficiency.
Water-source HP
Solar-assisted
Multi-objective control
Hybrid system
Building energy & Data center cooling
Building energy & Data center cooling
Net-zero and plus-energy building systems integrating ground-source heat pumps, renewable-assisted (fuel cell, solar) sources, and dedicated outdoor air systems (DOAS) — including large-scale TRNSYS simulation of ground-source integrated heat pumps for high-performance U.S. residences conducted during NIST research.
Net-zero
Free-cooling
DOAS
Trnsys simulation
Frost & AI-defrost control
Frost & AI-defrost control
Characterization of frost formation on heat exchanger fin surfaces and development of data-driven defrost control strategies to improve heat pump reliability and efficiency under low-temperature operation.
Water-source HP
Solar-assisted
Multi-objective control
Hybrid system
Heat exchangers
Heat exchangers
Plate and multi-evaporator heat exchanger thermohydraulics, including refrigerant evaporation heat transfer characteristics and interference effects in multi-evaporation-pressure heat pump systems.
R290
Plate HEX
Multi0evaporation
TwoPhase Flow
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