The CASE Report proposes a prescriptive requirement for higher efficiency axial fan open-circuit cooling towers for newly constructed projects, new systems that serve additions, and non building mounted replacements/alterations. The 2016 Title 24, Part 6 Standards’ mandatory minimum efficiency for axial fan open-circuit cooling towers is 42.1 gallons per minute of condenser water flow per fan horsepower (gpm/hp). The 2016 Alternate Calculation Method Reference Manual assumes an efficiency of 60 gpm/hp for a standard design cooling tower. The intent of this proposal is to add a prescriptive efficiency requirement of 80 gpm/hp in addition to the mandatory requirement and to increase the standard design listed in the Alternative Calculation Method (ACM) Reference Manual to 80 gpm/hp. The measure proposes this prescriptive requirement only for condenser water systems that are rated for 900 gpm (300 tons) or greater.
The Statewide CASE Team 2019 Title 24, Part 6 Final CASE Report is available below. The Final CASE Report incorporates feedback received during utility-sponsored stakeholder meetings, Energy Commission Pre-Rulemaking workshops, and personal communication with stakeholders.
Presentations and Meetings
- Presentation from Stakeholder Meeting on September 26, 2016
- Notes from Stakeholder Meeting on September 26, 2016
- Presentation from Stakeholder Meeting on March 15, 2017
- Notes from Stakeholder Meeting on March 15, 2017
Give Us Your Feedback
The Statewide CASE Team values input from all stakeholders engaged in the Title 24, Part 6 code change process. We encourage the open exchange of code change comments and concerns.
Use the form above to provide feedback on this measure.