Lucky Lab's New Thermal System
R A Energy‘s Tim Ruchs just shed some light onto the us:
“We have recently finished the new solar thermal system at the Lucky Lab Brewery on Quimby, and it is now producing about 1500 gallons of hot water per day that is used in the brewing process and for domestic use in the restaurant. I thought you might be interested, so I have included the text from an upcoming case study that will appear in the next week.”
Here’s some specs on the thermal system:
DESIGNER & LEAD INSTALLER:
Bruce McLeod, Co-Owner, Ra Energy,
DATE COMMISSIONED: August 2008
INSTALLATION TIMEFRAME:
21 days
LOCATION: Portland, OR, 45.6°N
AVERAGE SOLAR RESOURCE:
3.52 kWh/m2/day
ANNUAL HEATING DEGREE DAYS:
4,276
RECORD LOW TEMPERATURE:
-3º F
COLLECTOR ARRAY AREA:
640 sq. ft.
AVERAGE ANNUAL PRODUCTION:
30 MWh
COLLECTORS: 16 Heliodyne Gobi
410, 40 sq. ft. each
ARRAY: Two 8 collector subarrays,
sloped 0.25 inch per ft.
HEAT EXCHANGER: Custom shell
and tube
PUMP: Taco 0011-BF4
CONTROLS: Tekmar models 155 and
152, with additional custom control
FREEZE CONTROL: Drainback
COLLECTOR INSTALLATION:
Flat roof mount, torch down roof,
custom racking, 180º azimuth, 45° tilt
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