Photo of Janghyun Kim.

Janghyun Kim

Researcher III-Mechanical Engineering

Orcid ID

Janghyun Kim joined NREL in January 2019 and works in the Commercial Buildings Research Group. His work focuses on realizing better-performing buildings through physics-based building energy modeling, minimizing/managing incorrect operations in buildings, and learning/predicting building behaviors from past measurements.

Prior to joining NREL, he completed a Ph.D. at the Ray W. Herrick Laboratories at Purdue University. His dissertation covered experimental studies for characterizing the performance of passive chilled beams in both laboratory settings and in field studies; development of passive chilled beam performance prediction models; integration of these models into building simulation models/tools; and the use of building simulation for overall assessment of different passive chilled beam system configurations.

Research Interests

Stock and Individual Commercial Building Energy Modeling

Automated Fault Detection and Diagnostics

Feature Extraction and Selection for Machine Learned Building Load Prediction


Ph.D. Mechanical Engineering, Purdue University

M.S. Mechanical Engineering, Hanyang University

B.S. Mechanical Engineering, Hanyang University

Featured Work

Research challenges and directions in HVAC fault prevalenceScience and Technology for the Built Environment (2021)

Representing Small Commercial Building Faults in EnergyPlus, Part I: Model DevelopmentBuildings (2019)

Representing Small Commercial Building Faults in EnergyPlus, Part II: Model ValidationBuildings (2019)