11111brook
(70 mi. N of N.Y.C.)
Gyoy Arkorches Pag. 42° N. July 1976(7).
Polar ong 14.: Dubin et al. Architect: M. B. Volls. Owrur: New York
Botacical 6 14 a. Pull me Mary Hagler Cary Critable Trust.
bnt. cout: 4000360 67 comewhat morů.
Bick 35,000 ft rerch, admin., and educational bldg. Two stories;
no Lament. (Lower at se, flruled by high earth borms, could be regarded
a brgement. It conting library red rochanical rooms.) Few windows on
E, N, W; 4065 of arcz Beside cond story consists of windows. All
windows aru acablo 1.
well insulated. Heavy
wattage al c. allumi.
fivahing tollit. D.
1 chaded by Aves in summer. Bldg. is are ineviated on exterior mide. LowRainwater from roof is veod for
sty used in Lummer for cooling.
Roof is of Ge dug. 20. 1oota ty! ; bon ? teath. A small energy collecting and con..ervin
Just to the routh of bldg.
ret pa (antur 50% ethylene glycol). 1 ing. Collector panels are on 60°-frezhoriz. S-lo, 1ng faces of naweco o rang, with -uloping facen reilecting additional ro Lation to the panelu. Brorgy is delivered to storage system via hest
50,000 gal. puro tutor, in a sol of three tanks in basement. Each tank u of rainforced concrate, with bldg. foundation walls cerving as portion of tanks. Terk extators have insulating coating of urethane. Turke ray be at different temper 601 3. Rooms nosed by fan-coil system. Ha by around, da ure of "bble bundlɔ condenser" tyre. They are cd 1 winter to tran 10. heat from a hot tank to the coils or fan-ceil cynti.
110) cool case from duop wolls.
y cooling by comca Fout chiller rved by cooling tower. necuence 4/35/75. Patio project & merced to be
(Roloase of 2/11/74 by N. Y. boinical Garden; NIT 2/12/74; rolosse of
March 1975 by Dabin ot al. P-900.)
Valley Forge Gon.Elec. Co. Solar-Hosted Bar. 400 N. May 1975.
(suburb of Designer, solar engineer, builder, oner, operator: Gon.Elec. Co.
Philadelphia) Interested official: G. W. Van Citters.
Bldg. Existin: bldg. built in 1960. Solar heating system in intended
to heat the 0,000 ft2 retorid-kitchen ..
Collector: 400 ft2, watur-tyre, on horizontal roof. Collector consists
of 203 panels, each & ft x 3ft, od 5 in. truck, tiltod 450 from horiz.
Heart of panel is a Series 1100 Roll-Bond aluminum sheet with 240 ft of
integral passages. For comparison, three ses of selective black ccati 3
are used and several glad ag schon (employing the G.E. plastic Lex).
Insulatod backing includca 0.001-.abminum Toll, a layer of foam-type
insulation, and, in addition, a thin layor of fiberglass. id: 500 1.
of sol'n. consisting of water (703) and ethylen glycol (50%) in a clos
aynte; circulation is by a 5-P contrifugal up.
Storage systent 8000 gal. water. ator is in a tankc. Hont exchangers
aro sed. hoons are hosted by fan-and-coil syafcas. When and if tank
temp. reaches 210 °F, adultional heat is "vented" to cold water.
Perent solar hanted: 75% (prodicted, for the bldg. portion in question).
Carrythrough: 4 days (predicted).
Auliary hxisting furnace.
Dongavic hot Loc Preheatod by onorgy in clcrage tanke.
or Solar heating system not nod to provide cooling.
Instrumentat ng Extensive.
Cont: $400,000 approx.
(S. E. I.R. Apr. 15, 1975. Also G. E. releace of 4/9/75. Also F-900.)
Bldg. The (partially) solar heated bldg. is a one-story, 40 ft x 40
ft lab. bldg., called the Air Conditioning, Refrigeration, and
Heating Lab. It is well insulated.
Collector: This is on a nearby one-story shed, 14 ft x 12 ft in plan,
with ridge roof. No attic or basement. Well inculated. Collector
area: 125 ft2; air-type; mounted on roof sloping 45° from horizontal.
Collector coneints of five side-by-side panels, cach consisting of a
3 ft x 8 ft black-painted metal rheot, or challow trough, which is
single glazod with 1/8-in. glaus. A 1/3-HP blower circulates the air
to the storage system.
Storare gystem: 20 tons of 3-in.-dia. stones in an uninsulated
rectangular bin 4 ft x 10 ft in plan and 2 to 5 ft high. In
occupios most of the space within ahod. Hot air is oont (with the
aid of the above-mentioned blower, and via an insulated, bolow-ground
duct with 16 in. x 16 in. cross-section) to the Lab. Duct is made of
fiberglass and plastic.
Percent solar heated; ~80%.
Carrythrought ~4 unless Jan. days.
Auxiliary hanti Electric heaters in duct.
Cooling in oner: No attempt has yet boen made to use solar energy to power a cooling system.
Performance: In 1975 winter, collector temp. as high as 235 °F was
Cost of materials: $1000.
(Choraw Chronicle, 5/1/75; also P-900)
Custom Leather Boutique Bld.
Solar engineer: J. DeVries of Sol-R-Tech.
Construction Co., Inc. Owner: J. Brown.
Bldg. 1-story building with two chort N-S ells and concrete
slab first-story floor. No basement. Floor area: 2100 ft2.
Thickness of fiberglass insulation: wall, 4 in.; roof, 6 in.
All windows are double glazed. No windows on vertical S, E, or W walls.
Collector: 910 ft net. Flat-plate, water-type collector consisting
of 55 Sol-R-Tech panels on 45° roof. Each panel is 3 ft x 8 ft, and
includes an Olin Brass Co. aluminum Roll-Rond plate (of Type 100
aluminum) with integral expanded channels. The black coating is non-
selective. Liquid used: water with 500 ppm chromate inhibitor
(Cro) called Bartlet Che.Co. Inhibitor C. No antifreeze is used.
Liquid is drained into storage tank at night. Glazing: double, of
0.04 in. Kalwall Sun-Lite. Bohind the collector there is 6 in. of
fiberglass (in roof). Dekolabs, Inc., difierential controller used.
Storare system: 5000 gal. water in rectangular, concrete-block tank
with epoxy waterproof coating on interior. Tank is under concrete
slab. 3 in. of styrofoam applied to top of tank in 1975.
Heat-pumps: Heating is assisted by three York heat-pumps (Triton,
DW-30, water-to-air, 2-ton capacity) which extract energy from
tank water as long as this is at temp. exceeding 45 °F and deliver
energy to rooms via forced hot air. Typical COP of heat-pump is 3 or
slightly better, per mfr's spec. Output temp. of heat-pump: 120 °F.
Percent solar hested: 50% (predicted). Note: This does not include
the small additional amount of energy from heat-pump motor).
Auxiliary heat: Electric heaters in ducts. Can handle 100% of load.
Cooling in aurer: Heat-pumps used in opposite manner, taking
heat from rooms and delivering it to storage tank. Water from tank
is cooled at night -- by being circulated to sane panels on roof.
Performance: Measurements made by A. 0. Converse of Thayer School of
Engineering, Dartmouth College (with NSF support via Mitro Corp.) are
reported in 35 p. reports of 3/31/75 and 7/30/75. Some conclusions are:
With 700 of the 910 ft2 of collector panels in operation, 30,000,000 Btu.
were collected between Jan. 1 and May 7, 1975. This provided 40% of
the space-heat need of that period. Collection efficiency was 35 to
40% typically; occasionally higher; much higher during steady, high-
level irradiation in early afternoon. The COP of the (intermittently
operated) heat-pumpa ranged from 2.0 to 3.0 typically, depending on
tank temperature. There was no evidence of corrosion of collector
panels. (P-900. Also above-mentioped reports.)
front side (street side) of bldg.
Fairfax County (20 mi. of
Miller & Smith Tovisten Sales Office 39° N. Nov. 1974.
Not in any tombhie, Between herndon and Reston. Off Fox Mill Rd. and
Pine Crest Rd. In oylston subdivision.
Solar engineer: J. Curaings of Goodwin H.Taylor Co.
Wash.D. C.) Builder & owner: Miller and Smith, Inc. Supervisor: K. Murphy.
1 story, with basement. Hosted living area: about 1500 ft2.
Fiberglass insulation: wall: 3 in. (U= 0.1); ceiling: 6 in. (U = 0.05).
Windows are double-glazed (Therone).
Collector: 750 ft gross area; trickling water type; on rooi that
clope CO deg. from horiz. Water trickles down valleys of Reynolds
corrugated aluminum that has a non-selective black coating. Nominal rate
of flow of water: 4 to 6 pm. Distribution pipe runs along ridge of roof.
Collector-ipe (gutter) rune along lower edge of roof. Glazing: one
layer of double-strength glass. Power of water pump: 3/4 HP. (Or 1/3 HP?)
Storage system: 4000 gal. water in horizontal cylindrical steel tank
(64 in. dia., 24 ft long) in baserent. Tank is insulated with 2 in.
polyurethane foam. Water is same water that is circulated to collector.
No antifreeze is used. Calgon inhibitor is (or will be) used.
Rooms are heated by fan-coil syoten, supplied with hot water from tank.
Percent solar heated: 30 to 503 (predicted). Carry through: No info.
Auxiliary heat: 30 KW electric immersion heater insures that tank temp.
remains above 95 °F.
Domestic hot water: Frohnated by above-mentioned storage-system tank.
Cooling in sumper: Nons provided.
Cont: 3145. propor: about $50,000. Solar heating system: about $12,000
(Wash. Post 11/17/74; 2-900).
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