RESIST (Re-envisioning Energy System Infrastructure and Storage Technology) Lab

Reducing Costs for Space- and Water-Heating in Multifamily Buildings

Duration: May 2024 - July 2024

As part of a multi-institution research initiative led by Prof. Helmns and supported by the U.S. Department of Energy, I contributed to the modeling and validation of a novel combined space and water heating system. The project tackles critical cost and performance barriers to electrified heating by integrating an air-to-water heat pump with phase change material thermal energy storage (PCM TES) — allowing efficient heating during off-peak, renewable-heavy grid periods.

  • Modeled and validated a field-demonstrated heat pump + PCM TES system using Modelica, comparing simulations with live performance data to identify and resolve discrepancies.
  • Extended the validated model to scalable use cases for multifamily residential buildings in cold climates using Model-Based Design.
  • Explored thermal system design and controls to enhance energy flexibility and efficiency through heat pump integration with thermal storage.
  • Contributed to a research paper under review for publication with the U.S Department of Energy.
  • This work enables building-scale decarbonization by simulating complex thermal interactions before deployment — significantly reducing development time and cost.

    Slide from Prof. Helmns’ ZCR 2024 presentation on combi heat pumps with PCM TES. Full presentation available here. Credit: Prof. Helmns / www.drehelmns.com