Direct Evaporative Precooling Model and Analysis

Technical Report · Sat Jan 01 00:00:00 EST 2011

DOI:https://doi.org/10.2172/1061536· OSTI ID:1061536

Shen, Bo ^[1]; Ally, Moonis Raza ^[1]; Rice, C Keith ^[1]; Craddick, William G ^[1]

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1. ORNL

Evaporative condenser pre-cooling expands the availability of energy saving, cost-effective technology options (market engagement) and serves to expedite the range of options in upcoming codes and equipment standards (impacting regulation). Commercially available evaporative pre-coolers provide a low cost retrofit for existing packaged rooftop units, commercial unitary split systems, and air cooled chillers. We map the impact of energy savings and peak energy reduction in the 3 building types (medium office, secondary school, and supermarket) in 16 locations for three building types with four pad effectivenesses and show the effect for HVAC systems using either refrigerants R22 or R410A

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Building Technologies Research and Integration Center (BTRIC)
• Sponsoring Organization: USDOE Office of Energy Efficiency and Renewable Energy (EERE)
• DOE Contract Number: DE-AC05-00OR22725
• OSTI ID: 1061536
• Report Number(s): ORNL/TM-2010/231; BT0201000; CEBT105
• Country of Publication: United States
• Language: English

Related Subjects

Commercial
rooftop
air conditioner
evaporative pre-cooling
EnergyPlus
simulation