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Sage Advice
Prudent energy use is important for any HVAC system, but it is particularly relevant for applications such as schools, which require large amounts of outdoor air for proper ventilation. Through our discussion of energy-recovery technologies for various ventilation systems, we identified ways to increase the heating and cooling benefits derived from energy consumed by an HVAC system:
- For systems that use a cold coil to control the latent load, apply energy recovery to reduce the operating cost of tempering.
- In any air distribution system, use total-energy recovery for outdoor-air preconditioning to reduce the first costs of the heating and cooling plants.
- Implement a thoughtful control strategy to lower operating costs and shorten the payback period.
Efficient HVAC systems demonstrate good stewardship by the people who design and operate them. Don’t throw away reusable energy unnecessarily.
By Dennis Stanke, staff applications engineer; John Murphy, senior applications engineer; and Brenda Bradley, information designer, Trane.
You can find this and other issues of the Engineers Newsletter in the commercial section of www.trane.com. To comment, send a note to Trane, Engineers Newsletter Editor, 3600 Pammel Creek Road, La Crosse, WI 54601, or e-mail us from the Trane Web site.
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