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Title: Air source integrated heat pump simulation model for EnergyPlus

Abstract

An Air Source Integrated Heat Pump (AS-IHP) is an air source, multi-functional spacing conditioning unit with water heating function (WH), which can lead to great energy savings by recovering the condensing waste heat for domestic water heating. This paper summarizes development of the EnergyPlus AS-IHP model, introducing the physics, sub-models, working modes, and control logic. Based on the model, building energy simulations were conducted to demonstrate greater than 50% annual energy savings, in comparison to a baseline heat pump with electric water heater, over 10 US cities, using the EnergyPlus quick-service restaurant template building. We assessed water heating energy saving potentials using AS-IHP versus both gas and electric baseline systems, and pointed out climate zones where AS-IHPs are promising. In addition, a grid integration strategy was investigated to reveal further energy saving and electricity cost reduction potentials, via increasing the water heating set point temperature during off-peak hours and using larger water tanks.

Authors:
; ;
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1400168
DOE Contract Number:  
AC05-00OR22725
Resource Type:
Journal Article
Resource Relation:
Journal Name: Energy and Buildings; Journal Volume: 156; Journal Issue: C
Country of Publication:
United States
Language:
English

Citation Formats

Shen, Bo, New, Joshua, and Baxter, Van. Air source integrated heat pump simulation model for EnergyPlus. United States: N. p., 2017. Web. doi:10.1016/j.enbuild.2017.09.064.
Shen, Bo, New, Joshua, & Baxter, Van. Air source integrated heat pump simulation model for EnergyPlus. United States. doi:10.1016/j.enbuild.2017.09.064.
Shen, Bo, New, Joshua, and Baxter, Van. Fri . "Air source integrated heat pump simulation model for EnergyPlus". United States. doi:10.1016/j.enbuild.2017.09.064.
@article{osti_1400168,
title = {Air source integrated heat pump simulation model for EnergyPlus},
author = {Shen, Bo and New, Joshua and Baxter, Van},
abstractNote = {An Air Source Integrated Heat Pump (AS-IHP) is an air source, multi-functional spacing conditioning unit with water heating function (WH), which can lead to great energy savings by recovering the condensing waste heat for domestic water heating. This paper summarizes development of the EnergyPlus AS-IHP model, introducing the physics, sub-models, working modes, and control logic. Based on the model, building energy simulations were conducted to demonstrate greater than 50% annual energy savings, in comparison to a baseline heat pump with electric water heater, over 10 US cities, using the EnergyPlus quick-service restaurant template building. We assessed water heating energy saving potentials using AS-IHP versus both gas and electric baseline systems, and pointed out climate zones where AS-IHPs are promising. In addition, a grid integration strategy was investigated to reveal further energy saving and electricity cost reduction potentials, via increasing the water heating set point temperature during off-peak hours and using larger water tanks.},
doi = {10.1016/j.enbuild.2017.09.064},
journal = {Energy and Buildings},
number = C,
volume = 156,
place = {United States},
year = {Fri Dec 01 00:00:00 EST 2017},
month = {Fri Dec 01 00:00:00 EST 2017}
}