This paper discusses how dual-duct variable-air-volume systems, properly designed and controlled, can lower first costs and operating costs using a variety of strategies including:
- Twin-duct system architecture
- Dual motor fan drives with inlet vanes in lieu of a single motor with inverter
- Heating/cooling changeover of the traditional hot duct
- Direct digital control of terminal units
- Precise control of duct static pressure
- Elimination of return air fan
By utilizing the above concepts and a computerized design program, a system canbedesigned
that retains the low maintenance benefits of traditional dual-duct systems as well as providing the low noise, low cost, energy-efficient systems required to make today’s building profitable.
Units: Dual
Citation: Symposium, ASHRAE Transactions, 1987, vol. 93, pt. 2, Nashville, TN
Product Details
- Published:
- 1987
- Number of Pages:
- 8
- File Size:
- 1 file , 690 KB
- Product Code(s):
- D-NT-87-16-3
