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Title: Maximizing the Use of Ductless Mini-Splits in Homes with Existing Central or Zonal Heating and Cooling Equipment

Abstract

In the residential retrofit application, ductless mini-split heat pumps (DHP) are often reported to hold high-energy savings potential, depending on the system they are supplementing or replacing. However, of late, there have been a number of studies and analyses indicating these energy savings are not being achieved. The primary goal of this project was to determine the most cost effective (lowest cost for the most energy saved) and persistent (e.g. automated, hard to change, etc.) solution for controlling a ductless heat pump in an existing home with central forced air furnace. Various control strategies were tested at the Pacific Northwest National Laboratory Lab Homes to compare the energy savings between the different energy efficient control strategies. A maximum of 40% energy savings was realized by using the ductless mini-split as the primary heat source with the central air conditioning unit as the secondary source.

Authors:
ORCiD logo [1];  [1]; ORCiD logo [1];  [2]
  1. Battelle Pacific Northwest Labs., Richland, WA (United States)
  2. Efficiency Solutions, LLC., Richland, WA (United States)
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1635162
Report Number(s):
PNNL-29531
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English

Citation Formats

Ashley, Travis D., Metzger, Cheryn E., Kolln, Jaime T., and Sullivan, Gregory P. Maximizing the Use of Ductless Mini-Splits in Homes with Existing Central or Zonal Heating and Cooling Equipment. United States: N. p., 2020. Web. doi:10.2172/1635162.
Ashley, Travis D., Metzger, Cheryn E., Kolln, Jaime T., & Sullivan, Gregory P. Maximizing the Use of Ductless Mini-Splits in Homes with Existing Central or Zonal Heating and Cooling Equipment. United States. doi:10.2172/1635162.
Ashley, Travis D., Metzger, Cheryn E., Kolln, Jaime T., and Sullivan, Gregory P. Sun . "Maximizing the Use of Ductless Mini-Splits in Homes with Existing Central or Zonal Heating and Cooling Equipment". United States. doi:10.2172/1635162. https://www.osti.gov/servlets/purl/1635162.
@article{osti_1635162,
title = {Maximizing the Use of Ductless Mini-Splits in Homes with Existing Central or Zonal Heating and Cooling Equipment},
author = {Ashley, Travis D. and Metzger, Cheryn E. and Kolln, Jaime T. and Sullivan, Gregory P.},
abstractNote = {In the residential retrofit application, ductless mini-split heat pumps (DHP) are often reported to hold high-energy savings potential, depending on the system they are supplementing or replacing. However, of late, there have been a number of studies and analyses indicating these energy savings are not being achieved. The primary goal of this project was to determine the most cost effective (lowest cost for the most energy saved) and persistent (e.g. automated, hard to change, etc.) solution for controlling a ductless heat pump in an existing home with central forced air furnace. Various control strategies were tested at the Pacific Northwest National Laboratory Lab Homes to compare the energy savings between the different energy efficient control strategies. A maximum of 40% energy savings was realized by using the ductless mini-split as the primary heat source with the central air conditioning unit as the secondary source.},
doi = {10.2172/1635162},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {5}
}