Design Heating and Cooling Load Calculation Versus Building Load Simulation for Cold Climate Heat Pumps: Understanding the "Gap": U.S. Department of Energy (DOE), Energy Efficiency & Renewable Energy (EERE)

Hilary Grimes-Casey; Greg Thomas; Kyle Masi-Perkins; Conor Dennehy

doi:10.2172/2479124

Design Heating and Cooling Load Calculation Versus Building Load Simulation for Cold Climate Heat Pumps: Understanding the "Gap" U.S. Department of Energy (DOE), Energy Efficiency & Renewable Energy (EERE)

Hilary Grimes-Casey, Greg Thomas, Kyle Masi-Perkins, Conor Dennehy (NREL Technical Monitor)

Performance Systems Development

Research output: NREL › Technical Report

Abstract

This report explores the differences between Manual J-equivalent block load calculations and building HVAC energy simulation results using EnergyPlus™ calculations when designing cold climate heat pump systems for residential use. This study will help HVAC researchers and advanced designers understand the impacts of oversizing heat pumps on home energy use.

Original language	American English
Number of pages	19
DOIs	https://doi.org/10.2172/2479124
State	Published - 2024

NREL Publication Number

NREL/TP-5500-90544

Other Report Number

DOE/GO-102024-6351

Keywords

building cooling load
building heating load
cold climate
cold climate heat pump
cooling load
cycling
design load
EnergyPlus
heat pump
heat pump sizing
heating efficiency
heating load
home energy performance
HVAC
Manual J
Manual S
sizing heat pumps
variable-speed heat pump

Access to Document

10.2172/2479124

https://www.nrel.gov/docs/fy25osti/90544.pdf

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AU - Masi-Perkins, Kyle

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KW - building heating load

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KW - cycling

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KW - heat pump sizing

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