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Energy savings and economics of advanced control strategies for packaged air-conditioning units with gas heat.

Author(s) : WANG W., HUANG Y., KATIPAMULA S., et al.

Type of monograph: Report

Summary

Packaged air conditioners and heat pumps serve over 60% of the commercial building floor space in the US, contributing to about 230 trillion Btus of energy consumption annually. Therefore, even a small increase in operational efficiency of these units can lead to significant reductions in energy use and carbon emissions. Pacific Northwest National Laboratory, with funding from the US Department of Energy’s (DOE’s) Building Technologies Program, evaluated a number of control strategies that can be implemented in a controller, which can be retrofit into an existing unit, to improve the operational efficiency of packaged heating, ventilation and air-conditioning (HVAC) equipment. The results from detailed simulation analysis show significant energy (24 to 35%) and cost savings (38%) from fan, cooling and heating energy consumption when packaged units are retrofitted with advanced control packages.
Extract from the table of contents: control sequence of operation for packaged rooftop units with gas heating; representative buildings, climates and locations; analytic methodology; energy savings; economic analysis (impact assessment of individual control strategies on HVAC energy cost; incremental impact of selected control strategies on HVAC energy cost; HVAC energy cost comparisons).

Details

  • Original title: Energy savings and economics of advanced control strategies for packaged air-conditioning units with gas heat.
  • Record ID : 30003689
  • Languages: English
  • Subject: Figures, economy, Environment
  • Publication: US Department of Energy - United states/United states
  • Publication date: 2011/12

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