[BLDG-SIM] Fan and Pump Load Data Search
Jon Maxwell
jmaxwell at aspensys.com
Tue Jun 1 09:21:34 PDT 2004
Is anyone aware of or in possession of fan and pump load distribution curves
for variable flow applications as a product of building simulation modeling,
metering, or other? If so, I would welcome the information or direction to
it. Obviously much of this would be location and building
configuration-specific. Anecdotal data for specific sites/locations,
typical representative values, and statistical aggregations of a larger
sample all would be welcome. Thank you in advance.
Jon Maxwell, PE
Aspen Systems
710 Park Place
College Station, TX 77840
(979) 764-6779
www.aspensys.com
Example of desired data:
Percentage of
%Flow Hours Per Year
------- ----------------
Off 30%
1-9% 0%
10-19% 0%
20-29% 0%
30-39% 20%
40-49% 15%
50-59% 11%
60-69% 10%
70-79% 7%
80-89% 4%
90-99% 2%
100% 1%
-------- --------------------
TOTAL 100%=8,760 hr/yr
Examples of applications of interest:
- VAV supply, return, and exhaust fans
- VAV dual duct supply, return, and exhaust fans
- VSD chilled, hot water pumps with 2-way control valves
- Single speed, two speed, and VSD cooling tower fans
- Cooling tower pumps
- VSD DHW pumps
- Boiler FD fans
- Kiln drying fans
- Refrigeration evaporator fans
Opinions on the worth of such data? Of use for case studies, but beyond
that, do you think it always need to be metered or modeled for a specific
site to be useful?
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