Scientific Engineering Associate / LBNL

Jan 2018 - Current

Building energy modeling and simulation

Building and occupant data analytics

Web-application development

EnergyPlus and OpenStudio feature development

Energy Efficiency Analyst / ICF

Jul 2017 - Jan 2018

Developed quantitative and qualitative modeling tools for building energy analyses.

Conduct energy saving potential and economical analyses.

Graduate Teaching Assistant / CMU

Jan 2017 - May 2017

Teaching assistant and guest lecturer of Building Control and Diagnostics course.

Graduate Research Assistant / CMU

Sep 2015 - Dec 2016

Participated in on-site POE survey.

Supported data analysis and summary drafting.

Master Intern / PNNL

Jun 2016 - Aug 2016

Conducted building energy simulations for high performance building code study.

Collected HVAC system and component information, created a classification map.

Building Efficiency Targeting Tool for Energy Retrofits / LBNL

Jan 2019 - Present

Lead the development of the BETTER (Building Efficiency Targeting Tool for Energy Retrofits) tool.

Sensor Data Integration / LBNL

Jan 2019 - Present

Developed a set of system-level key performance indicators to evaluate building energy performance at system level.

Developed a new Inverse Modeling feature in EnergyPlus. This feature combines physics-based building energy model and indoor environmental measurements to back-calculate hard-to-measure parameters.

Ground Source Heat Pump (GSHP) Quantitative Screening Tool / ICF

Aug 2017 - Jan 2018

Served as a major developer of a quantitative screening tool for filtering potential GSHP candidate sites. Developed a framework to automate data-entering, GSHP sizing and simulation, economic analysis, and report-generation via Excel VBA and GLHEPro. Conducted parametric analyses in OpenStudio to support building loads estimation. Supported in general data collection and presentation materials preparation.

Master’s Thesis: Identifying Significant Alarms from Building Automation System / CMU

Sep 2016 - May 2017

Developed a data-mining framework which aims to help facility managers to classify and prioritize BAS alarms. A decision-tree model is applied to predict the durations of the alarms. Engineering equations are used to quantitative the potential thermal comfort and energy consumption impacts. The framework could filters out overwhelming and trivial BAS alarms. A paper based on the thesis is accepted by 2018 ASHRAE Winter Conference. PDF

A CFD Solver for Computer Room Air Conditioning System / CMU

Apr 2016 - May 2016

Developed a 2-D Navier-Stokes solver for computer room air-conditioning system. The solver is developed in MatLab with finite difference approach. It can simulate airflow patterns and temperature gradients under different boundary and initial conditions.

A Round-Based Game in Python / CMU

Nov 2015 - Dec 2015

This is my 15112 (Fundamentals of Programming and Computer Science) course term project in Fall 2015 semester. I developed a round-based game in Python with Pygame module.

More...

Li, H., Hong, T., & Sofos, M. (2019). An Inverse Approach to Solving Zone Air Infiltration Rate and People Count using Indoor Environmental Sensor Data. Energy and Buildings. PDF

Li, H., Hong, T., & Sofos, M. (2019). System-level Key Performance Indicators (KPIs) for Building Performance Evaluation. ASHRAE Transactions, 125(1), 453-461. PDF

Li, H., Szum, C., Nesler, C., & Lisauskas, S. (2019). Targeting Building Energy Efficiency Opportunities: An Open-source Analytical & Benchmarking Tool. ASHRAE Transactions, 125, 470-478. PDF

Li, H., Chen, L. A. Y., Zhang, J., Athalye, P. R., Mendon, V. V., & Xie, Y. (2017). A Systematic Classification for HVAC Systems and Components (No. PNNL-SA-122937). Pacific Northwest National Lab.(PNNL), Richland, WA (United States). PDF

Han Li, Azizan Aziz, Erica Cochran, and Bertrand Lasternas. "Building Automation System Alarm Management for Operation and Maintenance Decision Making". (2017) PDF