Select DOAS, Ceiling Radiant Cooling Panel- Chilled Beam Projects. Updated 9/23/2008
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1 1 Select DOAS, Ceiling Radiant Cooling Panel- Chilled Beam Projects. Updated 9/23/2008
2 Classroom Building-1, PA
3 Classroom Building-2, PA
4 Classroom Building-2, PA DOAS-Chilled Ceiling
5 Classroom Building-3, PA
6 Classroom Building-3, PA DOAS-Chilled Beam DOAS air Induction Nozzle Sen Cooling Coil Room air
7 Original campus building during renovation into administrations use
8 Active chilled beam system during construction
9 The active chilled beam solved 4 problems in this renovated building: 1. Allowed year-round use of the building by providing cooling and ventilation air, 2. Avoided HVAC equipment setting on the ground outside, 3. Ductwork fit in this older building, 4. Provided multi-zone / multi-use control.
10 Active chilled beam panels before ceiling installation. Primary air introduced in insulated duct. Chilled water piping insulated with Armaflex.
11 The chilled beam panel can be mounted and connected during rough-in. And the chilled beam / coil and grilles can be installed anytime later such as after the ceiling is installed and the space is clean.
12 DOAS main air handler was located in the attic. Shown is the supply ducts providing ventilation air to the chilled beams. Relatively small main duct. Also small 4 and 5 duct branches to the beams.
13 Active chilled beam after construction.
14 Active chilled beams after construction
15 Close-up view of the chilled beam grilles. This chilled beam panel has 2 primary air slots providing ventilation air to the space.
16 Classroom Building, MI
17 Municipal Building, Denver
18 Municipal Bldg, Denver
19 Municipal Bldg, Denver
20 Municipal Bldg, Denver Max points, 272: VAV 53%, DOAS-Rad 90% Sys. Alts IAQ (5) (wtg) 1 st $ (5) Op. $ (4) DBT Ctl. (3) Plenum depth (5) AHU (1) Future Flex (4) Maint (3) Ductwork (2) Noise (2) Total Score FCU w/ DOAS 5/25 7/35 1/4 1/3 6/30 8/8 1/4 1/3 6/12 1/2 126 VAV, HW RH 4/20 5/25 3/12 5/15 2/12 4/4 5/20 7/21 2/4 7/ LT VAV, HW RH 4/20 6/30 4/16 6/18 3/30 4/4 6/24 7/21 3/6 7/ FPVAV, HW RH 2/10 4/20 5/20 4/12 4/20 8/8 3/12 3/9 4/8 2/4 123 FPVAV, Chw recool 1/5 3/15 6/24 3/9 5/25 8/8 4/16 2/6 7/14 3/6 128 LT DDVAV 3/15 2/10 2/8 2/6 1/5 4/4 2/8 4/12 1/2 5/10 80 UFAD 6/30 1/5 7/28 8/24 8/40 4/4 8/32 5/15 8/16 4/8 202 CRCP-DOAS 8/40 8/40 8/32 7/21 7/35 8/8 7/28 8/24 5/10 8/ Category Feature rating/score System performance in a category (i.e. 1 st cost) rating 1-8 (8 Best): i.e. FCUw/ DOAS meeting 1 st cost earns a 7 Importance weighting of a category 1-5 (5 most important) Score: in a cell: product of importance weighting and system performance. i.e. for CRCP-DOAS in the category of Op $, the score is 4*8=32 Conventional VAV 145 pts: DOAS-Rad 254 pts
21 Hospital, NY
22 Technical Project, NH
23 Technical Project, NH.
24 Eco Center, CA
25 Jr. High School in PA. DX DOAS roof mounted visible. Photo: Courtesy McClure Company - PPL Energy Services, Halifax Area School District, Juniata Area School District.
26 Jr. High School in PA. DX DOAS with FCUs. A retrofit from Unit Ventilators. Photo: Courtesy McClure Company - PPL Energy Services, Halifax Area School District, Juniata Area School District.
27 Jr. High School in PA. DX DOAS ceiling supply with cabinet FCUs. Photo: Courtesy McClure Company - PPL Energy Services, Halifax Area School District, Juniata Area School District.
28 Jr. High School in PA. Chiller for FCUs. Photo: Courtesy McClure Company - PPL Energy Services, Halifax Area School District, Juniata Area School District.
29 Jr. High School in PA. DX DOAS roof mounted visible. Photo: Courtesy McClure Company - PPL Energy Services, Halifax Area School District, Juniata Area School District.
30 DX DOAS, Installed in 2002 Photo: Courtesy Rob Christensen, PE of C C Engineering, Inc., & Linnwood Elementary school in Lafayette, Indiana.
31 DX DOAS, Installed in 2002 Photo: Courtesy Rob Christensen, PE of C C Engineering, Inc., & Linnwood Elementary school in Lafayette, Indiana. The ventilation air supply and return were ducted overhead in the building attic space to ceiling diffusers in each classroom, office, workroom, and toilet room. Classroom unit ventilator outside air dampers were closed, actuators removed, and outside air louver blanked off and sealed.
32 The Linnwood Elementary pilot project was such a success that the DOAS design was implemented throughout the rest of the facility and another elementary school, Glen Acres, in The director of facilities has since required DOAS be included in the design of Sunnyside Middle School Expansion & Renovation and the addition of a performing arts wing to Jefferson High School.
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