Ransisi Huang

Ransisi Huang

Researcher III-Mechanical Engineering


Ransisi Huang is a researcher in the Advanced Buildings Equipment Research Group. She joined NREL as a postdoctoral researcher in 2021. Her research focuses on investigating novel heating and cooling technologies to support the equitable transition to high-performing, decarbonized buildings. Her work includes integrating thermal energy storage (TES) into  heating, ventilating, air-conditioning, and refrigeration (HVAC&R) systems, and developing in-house, project-oriented simulation tools used to evaluate complex systems. Her areas of expertise include heat pumps, air-conditioning systems, HVAC&R simulation architecture, numerical analysis, and modeling.

Prior to joining NREL, Ransisi was a graduate research assistant at the Center for Environmental Energy Engineering at the University of Maryland, where she researched and developed advanced solution algorithms for heat pumping systems.

Research Interests

Building electrification

Heating, cooling, and dehumidification technology

Vapor compression cycles

Latent and sensible thermal storage

Thermal storage and HVAC&R integration


Ph.D., Mechanical Engineering, University of Maryland

M.S., Engineering Thermophysics, Zhejiang University

B.Eng., Energy Systems and Power Engineering, Wuhan University

Featured Work

Reduced-order modeling method for phase-change thermal energy storage heat exchangers, Energy Conversion and Management (2022)

Design of Phase-Change Thermal Storage Device in a Heat Pump for Building Electric Peak Load Shaving, 19th International Refrigeration and Air Conditioning Conference (2022)

A tripartite graph based methodology for steady-state solution of generalized multi-mode vapor compression systems, Applied Thermal Engineering (2021)

Comparison of approximation-assisted heat exchanger models for steady-state simulation of vapor compression system, Applied Thermal Engineering (2020)