A Home in Palo Alto Overview Foundations Architecture

A Home in Palo Alto Overview: - Foundations - Architecture - Solar Thermal Systems - Building Thermal Systems - Structural - Fluid Systems Bruce Mc. Iver, Linfield Oaks, Menlo Park, CA

Foundations Will Lentlie

Foundation Engineer o o o Foundation calculations Material selection Mediate issues between roof, wall and foundation subsystems

Foundation o Expectations of a foundation o o Hold up the house Keep out soil Keep out water and gas Provide storage

Foundation Calculations W = 307 in t = 8 in L = 546 in

Foundation Calculations Weight of House F = 40 lb/ft 2 * 2600 ft 2 F = 10400 lbs Assuming compressive strength of 2000 psi Factor of Safety = 256

Foundation Calculations 12” 120” 307” 26” 546” Hydrostatic Loading F = ½(ρ*W*D 2) F 125000 lbs

Architecture Kurt Stratton

Tentative Floor plan n n 24’x 24’ Garage 45’x 25’ Main House Flexible room sizes Overall Main Dimensions will shrink slightly Flexible Layout

2 nd Floor n n 3 Bedrooms 2 Bathrooms Same outside dimensions as Main Floor 3 -D Layout coming soon

Solar Thermal Systems Jon Seaman

F-Chart Analysis n Number of Panels ~ 11

F-Chart Analysis n Collector Area ~ 120 ft^2

F-Chart Analysis n Angle of Collector

F-Chart Analysis n Collector Azimuth = 0 deg (Directly South)

F-chart Panel Efficiency Analysis FR*UL (Test Slope) Closer to 0 = Higher Lifecycle Savings

F-chart Panel Efficiency Analysis FR*TAU*ALPHA (Test Intercept) Closer to 1 = Higher Lifecycle Savings

Panel Type n Glazed Panel – Based on Efficiency Analysis n Direct System - Heats DHW though panels n Indirect System - Uses Coolant or other heat transfer fluid through heat exchanger to heat water

Some Choices for Panels n Alternate Energy Technologies q q n Enerworks, Inc. – COL-4 X 8 -NL-SG 1 q q n Indirect System - Heat-Transfer Fluid: Solution of 50% Propylene. Glycol Y= 0. 7683 Slope= -0. 711 Rheem – Rheem RS 21 -SC q q n Direct System Y= 0. 706 Slope= -0. 865 Indirect System - Glycol Solution Y= 0. 75 Slope= -0. 858 Vressman Manf. Company – Vitosol 300 type SP 3, 2 m 2 q q Indirect System Y= 0. 574 Slope= -0. 537

Building Thermal Systems Leanne Cushing

Insulation n Bonded Logic is a Recycled Denim material. No damage to the environment Pink Fiberglas is the most typically seen material: Cellulose is comprised of 80% of recycled materials (generally paper) and can be applied in any space (loose of spray fill). Images found on Bonded Logic’s website, Owenscorning. com, lifetimeroofingltd. com, advancedfibreinstallations. com. au, thomasnet. com

Windows , n n n and Offer the option for a variety of styles with low U-value windows but can be more expensive than basic glass windows. Both apply for the Energy Star $1500 rebate Over time, will save on energy costs

Exterior n Engineered Wood such as q q q n Dryer climate so no worries on failure Doesn’t rot like regular wood Still needs maintenance with time Vinyl q q Stays warm No need for maintenance through house’s life Images taken from collinswood. com, progcontractors. com

Structural Analysis Jesse Wykstra

Structural Analysis n A Fink roof truss design will be used for preliminary calculations in ANSYS. These solutions, obtained from ANSYS, will be verified by hand calculations. n The truss members will be constructed from 2” x 4” Douglas-fir wood. ½” thick plywood will be used for the sub-roof. Architectural shingles will be used for the roofing material. n n

Structural Analysis n A double Howe roof truss will be used for the final design to improve the overall strength of the structure. n The final roofing structure will be modeled in Pro-E. The strength will be calculated using ANSYS. 5/12 pitch Trusses on 2’ centers n n n

Started Pro-E Design Truss span ~ 26’ Truss overhang ~ 2’/side Overall height ~ 6. 25’ Plywood weight ~ 50 lbs/sheet Shingle weight ~ 70 lbs/bundle 3 bundles of shingles cover 100 ft 2

Fluid Systems Kyle Benesh

Fluid Systems n Goal: attach eleven (11) solar collectors to the plumbing and exchange the heat into the DHW.

Fluid Systems Piping: Insulated Copper n. Increased efficiency n. Quality of connections n. Ease of install with equipment n. Better under pressure n. Decreased noise level

Fluid Systems Heat Exhanger: Solar Brazed Plate n n High Efficiency Specifically designed for solar use Inexpensive Solar. Tubs. com – SOL - 125

Fluid Systems Pump: Bronze Centrifugal n n n 55'of Head Maximum, 3/4 hp Exceeds needs (>~51’) Mc. Master-Carr - 8249 K 82

Fluid Systems n Storage Tank • • 80 Gallon Capacity High efficiency Model: HSTG 080 001 Brand: Heliodyne

Fluid Systems n Plumbing specs: • • • 1. 5” dia. Piping Total length to complete is TBD (>100’) System flow rate: 12 gpm

Questions?