Presents a case study describing a retrofit three years ago to provide additional heat savings of 17% for a 21,400m2 (230,824ft2) convent in Rochester, New York State. The structure includes a school, a convent and a nursing home. The ASHRAE Technology Award-winning retrofit implemented a new control sequence to control the heating system throughout the building. The original system was changed to a demand-oriented approach that generates only the amount of steam needed to heat the structure, thereby reducing boiler pressure below 0 psig under most load conditions. The vacuum in the boilers causes the water inside to boil at a lower temperature, and under high vacuum the boilers can produce steam at temperatures lower than 66degC (150degF) and still comfortably heat the building. Supplies a schematic of the building project.
Citation: ASHRAE Journal, vol. 40, no. 11, November 1998
Product Details
- Published:
- 1998
- Number of Pages:
- 3
- File Size:
- 1 file , 250 KB
- Product Code(s):
- D-9321
