120

WAS 9/9/75

Virginia

Greenway (near

Wash., D.C.)

Madeira School Solar Energy Science Bldg. 59°. July 1975(predicted).
Solar & Gen'l. eng'g.: Flack & Kurtz, Inc.

Architect: Arthur Cotton Moore Associates, esp. K. Abraham.
Builder: Commercial Industrial Construction, Inc. Funding: private.
Bldg. 1-story modern science bldg. housing biology, chemistry, and
physics classroom-laboratories, a greenhouse, space for animals, and a
basement photographic lao. Upper (main) story is trapezoidal; N wall
is 201 ft, S wall 70 ft, oldg. width 47 ft.; floor area of main story:
6000 ft2. N wall has windows, for view; S wall is adjacent to external
corridor and walkway under collector overhang. Sliding partitions
between main rooms permit flexible use. Lab. equipment is stored in
portable cabinets hung on racks along N wall and transported by dollies.
Abundance of conveniently placed water and sink stations, electrical
outlets, safety equipment. Lower level is 50% crawl space and 50% useful
area (3000 ft2, consisting of mechanical rooms, printing shop, photo lab.)
Some windows on N side; S side is below grade. Total useful floor area
of bldg.: 9000 ft2. Bldg. as a whole is a cedar-sided structure flanked
by woods except on south. Blag. is on downward-to-north slope. Winter
temp. deficit: 4000 F deg. days.

Collector: 4000 ft2 gross, covering trapezoidal wooden roof (waterproofed
with silicone-base roof membrane) sloping 26° from horizontal. Collector
consists of panels each of which employs a 27 in. x 104 in. Olin Brass
Co. aluminum Roll-Bond sheet with integral passages for coolant liquid.
Black coating is non-selective. Coolant is a heat transfer oil; probaul
Exxon Caloria HT-43 will be chosen. Single glazing. Pump drives liquid
(at rate of 72 gpm) upward along passages in panels to a header pipe at
ridge of roof, whence the liquid flows to storage system. Here, viu
heat exchanger, heat is imparted to water in tank.

Storaro nyston: 10,000 gal. water in horiz. steel tank (8 ft dia.;
insulated) in mechanical room. Tank temp.: typical, 130 °F; max.,180°F.
Heat is delivered to rooms by hot water circulation.

Perceut solar heated: (lio estimate available). Carrythrough: 2 or 3 days.
Auvillany heat: From steam boiler in adjacent bldg.

Cooling in summer: Not yet planned. Suitable space is available.

Swimming pool heating: Collector heats nearby swimming pool in spring

and fall when oldg. heat requirement is small.

Status: 80% complete. Expected completion date: July 1975.

(S.E.D. July 1974; Wash. Post Feb. 15, 1974; P-900)

Virginia

Hampton

NASA Engg. Bldg. 37° N. 1975(?)

Eng'g. bldg. for NASA's Langley Research Center.
Solar energy design: F. F. Simons and colleagues.

Floor area: 53,000 ft2.

Collector: 15,000 ft2. May employ evacuated glass tubes. May be
situated on field adjacent to bldg. (S.E.D. Feb. 174)

121

WAS 9/9/75

Virginia

Richmond

Phys.Sci. Museum & HQ of Sci. Museum of Virginia. 38° N. 1977(?)
Situated in Byrd Park. One of several bidgs. of statewide museum system.
Solar eng'g.: Hankins & Anderson, Inc. Architects: Glave, Newman, Anderson,
& Assoc., Inc. (esp. R. B. Prud'homme). Support by Sci. Mus. of Va. Foundation,
by Va. Elec. Power Co. and others; also by ERDA (re R&D); remainder by state.
Bldg. Will house HQ staff and also Phys. Sci. Museum (incl. a tilted-doce
planetarium). On 45-acre site. Bldg. includes several stories, with a total
floor area of 59,000 ft2. Large monoslope roof faces S. Wall area is 12%
(double-glazed)glass windows. Good insulation: U-values 0.10(roof),0.13(walls).
Collector: 28,000 ft2, water-type, on roof sloping 30° from horiz. Collector
employs non-selective-black aluminum panels, each double glazed. (Two shapes
of panel have been considered: 3 ft x 8 ft, and 110 ft x 2ft.) Liquid: water
and inhibitor. No antifreeze; water will be drained & replaced by N2 gas
before freeze-up can occur.

Storage Evstem: 150,000 gal. water in 8 insulated cylindrical steel tanks
beneath ground at S side of bldg. Tank dia. & length: 10 ft, 34 ft. Plan
calls for having various tanks at different temperatures, e.g., 120 or 140 °F
in winter; 140 or 195 or 40 °F in surner. Rooms heated by ".. fin tube
radiation and a terminal reheat system on the air conditioning system."
Tank insulation: 1-in. sprayed-on polyurethane foam plus vapor barrier.
Porcent solar heated: 75% (predicted). Carrythrough: 3 days.
Auxiliary heat; oil-fired boiler.

Domestic hot water: Preheated by condenser water; final heating by high-temp.
storage tank and heat exchanger.

Cooling in summer: 125-ton absorption refrigeration system will be powered by hot (~190 °F) water from collector or storage tanks.

Also a 200-ton centrifugal chiller will be used; and rejected energy will
be salvaged.

Cost of solar heating and cooling system and heat salvaging: Expected to
exceed $750,000.

Status: Hain funding not yet complete and not expected before 1976. In aid-75
NASA agreed to provide $174,000 for R&D re solar heating & cooling. Bldg.
completion expected in 1977(?). (Eng'g. News-Record 7/25/74; also P-900)

N

122

WAS 9/9/75

Virginia

Warrenton

(60 mi.WSW of Wash. D.C.)

Fauquier County Public High School
39° N.
April 1974.
Intertechnology Corp., with own funds and $173,000 NSF funds,
completed in March 1974 the design and installation of a solar
heating system for . set of five separate classroom buildings.
comprising a 4100-ft2 portion of the school. Overall cost: $297,000.
Collector: 126 ft x 26 ft (2400 ft2 net) water-type collector on
530-from-horizontal scaffold adjacent to school. Double-glazed with
1/8 in. double-strength glass. Radiation strikes a chemically
etched and black coating on face of Olin Brass Co. Roll-Bond aluminum
sheet. Selectivity ratio: 0/6 = 3, per measurement. Water (with
corrosion inhibitor) flows in the integral expanded channels in the
aluminum sheet. No antifreeze is used, but liquid can be drained
from collector into storage tank in 1 min. There are 105 collector
panels, each 32 ft x 8 ft.

Storage system: Two separate, water-filled, underground, 5500 gal.
tanks. Total capacity: 11,000 gal. Each tank (an electrical
transformer bunker) is of reinforced concrete with L, W, H of 11 ft,
81⁄2 ft, 7 ft. (R. W. Bliss's 4/10/75 rpt. discusses harmful water leaks
--leaks which were stopped in Jan.1975).

Percont solar heated: 100% (for the five classrooms in question).
Carrythrough: 10 sunless Jan. days.

Sources of info.: Intertechnology final roport "Solar Energy School
Heating Augmentation Experiment", Rpt.090974 (also called
NSF-RA-N-74-019) of 12/4/74; 80 p. Also NTIS PE-239 397/3WE "Design,
Construction, and Initial Operation"

N

classrooms are

40 to 140 ft

to S and SW

123

PAS 9/9/75

Wyoming

Lovell (N.central part of state)

Designors: Wirth Associates. Solar consultant: G. 0. G. Luf.
Funding and operation: National Fark Service.
Bldg. Visitors center at entranca (near Lovell. Wyoming) to Bighorn
Canyon National Recreational Arec, Cost of bldg.: $1,300,000 (cst.)
Floor area: 9500 ft2. Heat lona: 25,000 Btu per deg. day.
Collectors Tentative design calls for 2500 to 2900 ft2, air-type
collector on roof sloping 48° from horiz. Collector consists of a
large number of Solaron Corp. panels, each 12 ft x 2 or 3 ft x 5 in.
Each is double glazed, with -in.-thick space for air-flow. Air is
driven by a blower turned by a two-speed 5-HP motor; an air-flow of
5000 ft/min. at static pressure of 2 in. of water is achievable.
(Less power when air is circulated from collector to rooms, rather than
to storage system.) Panels can be "manifolded" side-by-side so that
very for ducts and roof penetrations are needed.

Storage synten; Bins of stones with total mass of order of 75 tons.
Teap, stratification occurs in bin of stones, providing certain advantages.
When rooms need heat and collector is not operating, room air is circulated
through bins of stones in opposite sense. Bins may be located at corners
of basement, basement walls forming parts of the enclosures. Each bin
may be an 8-ft-cube, with vertical air-flow. Or it may be long and low,
with horizontal flow.

Percent solar heated: 60 or 70% (predicted). Carry through: No info.
Auxiliary heat: Gas-fired, 400,000 Btu/hr furnace.

Dorastic hot water: Heated via heat-exchanger in duct from collector.
Cooling in summer: Bing of stones cooled at night by stream of cool
air from outdoors; water may be sprayed into air en route to bins to
cool this air further. During day, cool air from bins is circulated to
rooms, and (again) a spray of water may be used to enhance cooling effect.
Note that oach ton of stones, used through OT of 20 F deg., "stores"
2/3 of cooling, i.e., 8000 Btu.

Status: Nat'l. Park Service may issue invitations-to-bid by June 1975.
Construction may start by end of summer 1975. (L-379; ASET Jan. '75; P-900).