Preliminary Design Review Solar Thermal Water Heating System Team #5 San Diego, California Team #5 San Diego, California Ashley Tyler Tyler Borden Michael Cheney Matthew Murray Heather Hussain Allison Schneider Ashley Tyler Tyler Borden Michael Cheney Matthew Murray Heather Hussain Allison Schneider

Agenda Introduction Floor Plan Layout House Elevation Drawings Foundation Analysis Roof Truss Analysis Hydronic Subsystem Analysis Heat Transfer Analysis Building Thermal System Analysis Flat Plat Collector Analysis F-Chart Analysis

Floor Plan Layout Objectives Support the FPC solar thermal heating system Include the required living spaces.

Floor Plan Layout  26’ x 44’

Floor Plan Layout 9 foot ceilings 26’ x 44’

Foundation Analysis Main concerns Secure for house structure including in times of natural disaster – Seismic zone 4 Basement has both livable and storage qualities Foundation protects from the intrusion of environment, pests and soil Plastic wrap around total foundation Retains heat Styrofoam insulation

Foundation Analysis Other concerns Load bearing wall about 15’ from East or West wall to line up with other structures. Footings Should have a width of 15” and a thickness of 6” At least 12” below surface

Foundation Analysis Solution #1- Masonry Foundation Cinderblock build 8 in blocks ≈ $2100 for blocks to create a maximum of a 8’8” ceiling Rebar reinforcements (#4 to #5) every 48” with extra around openings

Foundation Analysis Solution #2- Masonry Foundation Cinderblock build 10 in blocks ≈ $2700 for blocks to create a maximum of a 8’8” ceiling Rebar reinforcements (#4 to #5) every 56” with extra around openings

Foundation Analysis Solution #3- Poured Foundation ≈ $10000 for enough concrete to pour to a maximum of 9’ ceilings Rebar reinforcements (#5 to #6) approximately every 48” on north side with extra around openings

Roof Structure Objectives Support the weight of the roof and FPCs Total weight of roof ~ 6 tons (7lbs/ft2) Total weight of FPCs ~ 600lbs Protect the house from the environment

Roof Truss Analysis 3-Tab Shingles Light weight yrs Architectural Shingles* Heavy duty yrs * Used for preliminary analysis

Hydronic Subsystem Analysis 28 gpm for 7 FPCs. Preliminary piping layout: Pump and heat exchanger located in the basement. ASTM B88 2.5” Type L Copper Pipe Head ~ 275ft

Building Thermal System Analysis Objective Prevent heat transfer through the exterior walls of the home by decreasing the overall heat transfer coefficient, U-Value Maximize the R-Values by varying the materials and thicknesses of wall components

Building Thermal System Analysis Design Constraints Siding of the house is Vinyl Roofing of the house is Asphalt Assumptions Took average thermal conductivity when density varied within a material Convert metric units to SI units at termination of calculations 16” studs on Center Sources of heat loss are not accounted for in the analysis Ceiling thermal analysis is independent of structural side Analyze interior to exterior heat transfer only

Building Thermal System Analysis Exterior Walls Insulation Loose Fill Conduction Celluslosic (milled paper or wood pulp) StudConduction Spruce or Eastern White Pine PlywoodConductionPlywood SidingConductionFoil Backed Outside FilmConvectionOutside Film 0.03 Total Thickness (in) Total Thickness (m) R-Value (m 2 K/W) U-Value (W/m 2 K) Total U-Value (W/m 2 K) Total U-Value (BTU/hr ft 2 °F)

Building Thermal System Analysis Exterior Walls Total U-Value (W/m 2 K) Total U-Value (BTU/hr ft 2 °F) Total U-Value (W/m 2 K) Total U-Value (BTU/hr ft 2 °F) Loose Fill (previous) Blanket and Batt

Building Thermal System Analysis Exterior Walls Insulation Spray Applied ConductionGlass Fiber StudConduction Spruce or Eastern White Pine PlywoodConductionPlywood SidingConductionFoil Backed Outside FilmConvectionOutside Film 0.03 Total Thickness (in) Total Thickness (m) R-Value (m 2 K/W) U-Value (W/m 2 K) Total U-Value (W/m 2 K) Total U-Value (BTU/hr ft 2 °F) Total U-Value (W/m 2 K) Total U-Value (BTU/hr ft 2 °F) Loose Fill Blanket and Batt Spray Applied

Building Thermal System Analysis Exterior Walls Total U-Value (W/m 2 K) Total U-Value (BTU/hr ft 2 °F) Total U-Value (W/m 2 K) Total U-Value (BTU/hr ft 2 °F) Total U-Value (W/m 2 K) Total U-Value (BTU/hr ft 2 °F) Loose Fill Blanket and Batt Spray Applied Board and Slab

Building Thermal System Analysis Ceiling Walls Component Heat Transfer Method MaterialThickness Thermal Conductivity (W/mK) R-Value (m 2 K/W) inchesmillimeters Between StudsAt Studs Inside FilmConductionInside Film 0.12 Insulation Board and Slab Conduction Polyiso- cyanurate StudConduction Spruce or Eastern White Pine PlywoodConductionPlywood RoofingConductionAsphalt Outside FilmConvectionOutside Film 0.03 R-Value (m 2 K/W) U-Value (W/m 2 K) Total U-Value (W/m 2 K) Total U-Value (BTU/hr ft 2 °F)

Building Thermal System Analysis Basement Walls Component Heat Transfer Method MaterialTypeThickness R-Value (m 2 K/W) U-Value (W/m 2 K) inchesmillimeters Exterior Wall Concrete Blocks Conduction Low-Mass Aggregate perlite-filled cores vermiculite- filled cores molder-EPS- filled (beads) cores Exterior Wall Poured Concrete ConductionConcrete Sand and Gravel or stone aggregate Foundations Engineer Provided two wall designs Cinderblocks Poured Concert – higher resistance to heat transfer

Building Thermal System Analysis Basement Walls Above Ground Component Heat Transfer Method MaterialThickness Thermal Conductivity (W/mK) R-Value (m 2 K/W) inchesmillimeters Inside FilmConductionInside Film 0.12 WallboardConductionGypsum Board Exterior Wall Concrete Blocks Conduction Poured Concrete Sand and Gravel or stone aggregate PlywoodConductionPlywood SidingConductionFoil Backed Outside FilmConvectionOutside Film 0.03 Total R-Value (m 2 K/W) Total U-Value (W/m 2 K) Total U-Value (BTU/hr ft 2 °F)

Building Thermal System Analysis Calculation of UA Value

Solar Thermal System Analysis Flat Plate Collector Average ambient temperature degrees Fahrenheit Daily water usage - 80 gallons Tank temperature degrees Fahrenheit Slope of panel - 32 degrees 1 Glazing coat - Low Iron Tempered Glass Test fluid -Water Absorber material - Copper Fuel type - Electric

Solar Thermal System Analysis EP-40EC-32 Domestic Hot Water System Only

Solar Thermal System Analysis Domestic Hot Water System Only EC-24 Best overall - EC-32 with 3 panels Highest Life Cycle Savings Approx $5,000 Total Solar fraction.983 Total weight 343 lbs Total cost of panels $

Solar Thermal System Analysis Heating & Water System EP-40EC-32

Solar Thermal System Analysis Heating & Water System EC-24Best overall – EC-32 with 6 panels Highest Life Cycle Savings Approx $7,500 Total Solar Fraction.966 Total weight 686 lbs Total cost of panels $5,219.82

Questions?

References ng/index.cfm?mytopic=11510http:// ng/index.cfm?mytopic= Fundamentals of Heat Transfer Textbook 2009 Ashrae Handbook - Database