pdr presentation montgomery, al. john mathewsarchitectural/structural derek searsfoundation michelle...
TRANSCRIPT
PDR PRESENTATION
Montgomery, AL.John Mathews Architectural/StructuralDerek Sears FoundationMichelle Bailey Fluid SystemsClem Pin Building Thermal SystemsAndrew Coulter Solar Thermal Systems
ROOF TRUSS CONSIDERATIONS Information Used In Analysis
Roof Structure Standard Roof Sizes Tiles Factor of Safety Used No attic necessary
Solar Panels Most efficient between 30-40° Each weighs around 80 lbs Could have up to 4 solar panels Each solar panel has a surface area of 4ft x 6ft
Environment .2” of snow fall is the maximum ever recorded Winds could reach up to 206 mph (F3 tornado) Montgomery County has had 15 tornadoes since
1956
ROOF TRUSS LIMITS Beam Forces
Maximum bending stress of material is 1650 lbs/ft² Maximum compressive stress is 1700 lbs/ft²
Forces on trusses Flat Plate Collectors
F=3.33lbs/ft² Forces in the negative y-direction
Plywood F=2.15625 lbs/ft² Force in the negative y-direction
Shingles F=.304 lbs/ft² Force in the negative y-direction
Wind F=.00256V² F=102.4 lbs/ft² Force in the x-direction
ROOF TRUSS DATA COLLECTION
Factor of Safety (FOS) turns out to be 4.7 Beam Loading(2”x12”)
Compressive loading failure is 24225 lbs Bending moment failure is 313680 lbs-inches
Worst Case Scenario Calculations Compressive load is 546.465 lbs Bending moment is 66667 lbs-inches
WALL INSULATION
Pink Fiberglass Insulation Cellulose Insulation
option 1 option 2 R13
R-13 R-13 # bales needed
batt area (ft^2) batt area (ft^2) 44
106.56 40
batt cost ($) batt cost ($)
24.5 8.98
# batts needed # batts needed
23 61
total cost ($) total cost ($) total cost ($)
563.5 547.78 436.92
ATTIC INSULATION
pink fiberglass Insulation cellulose insulation
R-30 R-60 R-30 R-49 R-60
number of units number of units # bales needed # bales needed # bales needed
23 45 60 104 130
total cost ($) total cost ($) cost($) cost($) cost($)
1051.79 2057.85 595.8 1032.72 1290.9
WINDOWS AND DOORS
Windows - Use lowE2 glass
- U value of .36
DoorsPatio Doors - use lowE2 glass
- U-value of .35Front Door - insulated metal
with a wood print - U-value of .26
SOLAR WATER HEATING SYSTEMS
Hydronic System Analysis
Closed loop – Active system Potable water routed to storage tank Working Fluid circulates through collectors Potable water is heated through heat
exchanger System requires auxiliary components like
expansion tank, valves, etc.
MAJOR COMPONENTS ANALYZED
analysis & selection of suitable pump selection of appropriate heat exchanger selection of main water storage tank. primary plumbing components – pipes
For Each: options, benefits and costs analyzed
HYDRONIC SYSTEM PUMP ANLAYSIS
How the analysis was carried out :
1. Design analysis was based on Architectural & Solar Thermal systems & options were considered
2. Architectural: basement & overall house dimensions
3. Solar Thermal: two possible options of Flat Plate Collectors with varying flow rates, dimensions and pressure losses.
4. Result of Total System Head Loss :
No. of FPC’s
Flow Rate(GPM)
Pressure drop(Psi)
Cumulative Head Loss (Ft)
4 0.35 0.87 6 4 0.52 4.86 14
OPTIONS FOR MAIN PUMP
Grundfos UP Series Circulator Stainless steel protects against
corrosion 3 Speed Super-Brute technology Integrated removable check valve Highest starting torque in its class Quick connecting terminals 3 yr warranty Cost: $200-$400
BELL & GOSSETT WET ROTOR CIRCULATORS
Heat resistant, polypropylene impeller with closed design improves operating efficiency
Dura Glide Bearing System incorporates several components working together to eliminate seasonal freeze-up
Face plate and rotor sleeve feature corrosion resistant stainless steel
Cost : $100 - $300
HEAT EXCHANGER GEA FP HYDRONIC SERIES
Grazed Flat Plate 3”X 8”, 14 plates, 8
GPM @ 5 Psi PD Higher heat transfer
co-efficient High pressure
ratings Smaller size &
weight Cost: $200
STORAGE TANK W/INTEGRATED HXSOLARIDE HE SERIES
Heat exchanger: copper tubing wrapped & secured to the tank.
Double wall, vented design for leak detection
Anode rod equalizes aggressive water action for prolonged tank life
Temperature and pressure relief valve included
Max Pressure 150 Psi Pressure Drop thru coil @ 2Gpm is 4.8
ft Cost : $1700, 6 yr Limited Warranty
PLUMBING PIPESCOPPER Impermeable to
contaminants & Biostatic Will not burn or give off
toxic fumes when exposed to fire
Withstand rapid temperature & pressure changes
Can leach lead/copper into water supply
Cost :Cerro 3/4 “ x 10 Ft. @ $18
PVC Resistant to corrosion &
abrasion Lightweight, high impact
strength No water hammer Easy, cost-effective
installation compared to copper
Relative price stability over time
Cost: 3/4 In. x 10 Ft. PVC @ $2
Flat Plate Solar Collector – Sunmaxx M2
21.53 ft2 aperture area 0.35 gpm flow rate Lower cost Smaller surface area and slower flow rate
produce less hot water than SH Would handle 39.4% of hot water needs
Flat Plate Solar Collector – Enerworks SH10US
28.97 ft2 aperture area 0.52 gpm flow rate Higher cost Higher flow rate and larger surface area
produce more hot water than M2 Would handle 47% of hot water needs
0 3000 6000 9000 12000 15000 180000
2000
4000
6000
8000
10000
12000
Strength Needed vs. Cost
Compressive Strength of Concrete (psi)
Cost
($)
FOUNDATIONS
0 3000 6000 9000 12000 15000 18000
Strength Needed vs. Cost
FOS=2
FOS=4
FOS=6
Compressive Strength Needed (psi)
Strength vs. Wall Thickness
0 1 2 3 4 5 6 7 8 9 10 11 12
Cathedral Ceiling
FOS=2FOS=4FOS=6
Wall Thickness (in.)
0 1 2 3 4 5 6 7 8 9 10 11 120
2000
4000
6000
8000
10000
12000
14000
16000
18000
20000
Open Floor
Wall Thickness (in.)
Com
pre
ssiv
e S
trength
(psi)
Cost vs. Wall Thickness
0 1 2 3 4 5 6 7 8 9 10 11 120
2000
4000
6000
8000
10000
12000
Open Floor
Wall Thickness (in)
Cost
($)
0 1 2 3 4 5 6 7 8 9 10 11 12
Cathedral Ceiling
FOS=2FOS=4FOS=6
Wall Thickness (in)
REFERENCESWindow information
http://www.americancraftsmanwin.com/productDetail.cfm?MID=1200&cat=RP&type=double
Cellulose Insulation Specification Sheet
http://www.homedepot.com/catalog/pdfImages/81/8123987d-90ca-46d2-b21f-dcf0a2ebe578.pdf
Fiberglass Information
http://www.homedepot.com/Building-Materials-Insulation-Fiberglass-Rolls/h_d1/N-5yc1vZ1xihZbay7/h_d2/Navigation?&storeId=10051&catalogId=10053&langId=-1
Shingle Data
http://bestmaterial.com/detail.aspx?ID=16297
Lumber Data
http://www.fpl.fs.fed.us/documnts/fplgtr/fplgtr113/ch06.pdf
http://www.fpl.fs.fed.us/documnts/fplgtr/fplgtr07.pdf
REFERNCES – FLUID SYSTEMS Pumps & Performance Curves
www.grundfos.us/ & www.bellgossett.com/ Heat Exchangers & Specifications
http://www.gea-phe.com/usa/themes/products/brazed-plate-heat-exchangers-ecobraze/gbx-series/
& http://www.rheem.com/products/tank_water_heaters/ Plumbing Pipes
http://www.copper.org/Applications/plumbing/techref/guidespecs/gde_specs_main.html & homedepot.com
REFERNCES – Solar ThermalSunmaxxhttp://www.siliconsolar.com/visual-directory/flat-plate-solar-collectors.html
Enerworkshttp://www.enerworks.com/
References- FoundationsFoundations Building
http://www.ornl.gov/sci/roofs+walls/foundation/ORNL_CON-295.pdf
R-values for Concrete
http://www.allwallsystem.com/design/RValueTable.html
Wage Estimateshttp://www.bls.gov/oes/2008/may/naics5_238110.htm
Conrete Cost Estimates
http://www.cabq.gov/purchase/staff-commodity-assignments/purbch/concrete-ready-mix/Concrete%20Ready%20Mix
Soil Density
ftp://sidads.colorado.edu/pub/DATASETS/AVDM/data/soil_moisture/SMEX03/Alabama/ground_soil_moisture/regional_GSM/BD_AL_v2.txt