Transcript Solar Decathlon - Old Dominion University

Solar Decathlon
Team Tidewater 2013
ODU Engineers
Groups and Members
 Project
 Horace Woolard
 Wesley Riley
 Solar
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Jessica Purdin
Morgan Sherrill
Eric Bagho
Mark Evans (Website and Scheduling)
 Gaming/Strategy
 Graeme Melrose
 Michael O’Toole
 Water
 Herbert Johnson
 Nathan Howell
 HVAC
 Todd Spreeman
 Chris Dohse
Introduction
 Solar Decathlon 2013 is a competition between 20
teams around the world to create the most
innovative, energy efficient house.
 Combine different engineering disciplines and
Architecture to create an innovative, solar house.
 Canopy house is aimed at providing sustainability for
the older population to age comfortably.
Canopy House
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Diem Wall (backbone)
Canopy like Solar Structure
18’ Solar Envelope
12’ Roof height
Floor Plan
Affordability/RSMeans
 Affordability Webinar
 Estimates need to be as accurate as possible
 Estimators will receive Project Manual upon October 11th
deadline
 No need to submit invoices as estimators use RSMeans
 RSMeans
 Offers cost data you can depend on
 Updated construction cost information available in
convenient book, CD, or online format
 Take advantage of the RSMeans library (try and target
product cost around these price estimates)
Energy Efficiency/Balance
 Energy Star Appliances
 Easy identification for consumers when
purchasing
 Savings on energy bills without
sacrificing performance, features, and
comfort
 Reduce greenhouse gas emissions and
other pollutants
 Energy usage of the HVAC, Lighting,
and Appliances
 Systems usage needs to be determined
in order to accommodate the number of
solar panels used on the Canopy House
Appliances
 Criteria for most appliances
 ADA compliant
 Allows easy accessibility and use of all amenities in the
house to people with disabilities
 Uses as little water as possible
 Bosch Dishwasher uses 2.22 gal/cycle
 Bosch Washer uses 4,064 gal/year on average
 Energy Star Compliant
 Electric
Canopy House System Schematic
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Sundrum
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PCM Storage Tank
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Radiant Flooring
Hot Water Outlet
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Hot Water Heater
Cold Water Inlet
Hot Water Collection System
Solar and Power
 Bosch Solar Module c-Si M 60 (Monocrystalline)
 SolarMount Evolution (Unirac)
Optimizing Panel Efficiency
 Enphase M215- MICRO INVERTER
-24/7 monitoring and analysis, DC to AC
power conversion for every individual
panel
 SunDrum - Captures the solar panel’s
wasted heat and converts the heat
into hot water and electricity. In
addition, this process cools the panels
allowing them to operate more
efficiently.
Solar and Power Deliverables
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Configure optimal orientation for all solar panels
Complete 3 Part Master Spec for every component
Complete Installation Manuel
Complete Documentation for all components (Revit)
Test the performance of the system to determine
optimal number of panels required
Plumbing
 Begun routing of black
water systems
 Corresponding with
Architects about bed
dimensions to source
storage and waste tanks
 Finalizing pump valve and
back flow prevention
locations
Hot Water Tank
 Final selection based on
capacity and energy
consumption narrowed
 Discussing with vendors
potential donation
 Determining whether a
custom tank has to be
produced
Phase Change Tank
V
Sundrum
V
PCM Storage Tank
E
Radiant Flooring
Hot Water Outlet
V
 Nominal heat capacity
requirements being
determined with results of
sun drum output
 Determining the volume of
PCM to store energy
 Researching prefabricated
jacked tanks vs custom
manufacture
Hot Water Heater
Cold Water Inlet
Hot Water Collection System
HVAC Selection
 Canopy House has chosen to utilize a Ductless Split
System (DSS) Heat Pump with Energy Recovery
Ventilator and Auxiliary Radiant Floor Heat
 DSS benefits: high efficiency ratings, multiple zones,
Variable Speed Compressors & Fans, reduced energy
consumption
 Radiant Floor Heat benefits: constant & stable
temperatures, multiple zones, utilizes free energy
 Disadvantages of both: complex mechanical systems
Ductless Split Systems
i-See Sensor & Directional Vanes
 Selection Based on Mitsubishi products: Wall-Mount & Cassette style
 Features: Redlink embedded controls for home integration, i-See infrared
sensor, directional vanes, multi-zone, and wireless remote
 Wall-Mount utilizes the i-See sensor technology
 Cassette style allows for use of Energy Recovery Ventilator
Energy Recovery Ventilator
• Reduces energy costs as well as heating and cooling loads
• Allows for scaling down of equipment and air-side economizing
• Helps maintain a desirable humidity of 40-50%
Hot Water Radiant Floor Heat
 Typical systems include a hot water generator (boiler, hot water heater, solar
hot water heater, etc.), a pump, zone valves, piping, and controls
 Piping is commonly placed beneath the finished floor, in a concrete slab, or
the underside of the sub-flooring
 Passive floor heating system that uses “free” energy for heating purposes
 Collected heat is incorporated from the SunDrum, solar water heating
system, by a heat exchanging tank utilizing
Phase Changing Material (PCM)
Typical System Design
 Incorporated into the SunDrum solar
water heating system by heat exchanging
tank system
 Incorporates Phase Change Material
(PCM) – Research in Progress
 System utilizes all stored “free” energy
for radiant floor heat system before
initializing the Ductless Split System units
 With proper sizing and load calculations,
this system should allow for an estimated
50% reduction in heating energy
requirements
 Disadvantage of System: Effective only
for periods of heating, with no cooling
capabilities
Canopy House System Schematic
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Sundrum
V
PCM Storage Tank
E
Radiant Flooring
Hot Water Outlet
V
Hot Water Heater
Cold Water Inlet
Hot Water Collection System
Gantt Chart
Questions???