GREEN DORM Energy Technologies

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GREEN DORMEnergy Technologies

• Group 6
• Bethany Corcoran
• Andrew Ehrich
• Eric Stoutenburg
• Kimberly Walton

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The Stanford Delivery ProcessWhere Are We?

• Feasibility Phase Completed
• Waiting for Board of Trustees Approval to begin
  Schematic Design
• Design options have been proposed, but no
  decisions have been determined

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Current State Narrative
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Future State Narrative
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Project Manager
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Goal Model Evolution
1. Extract goals from existing list that relate
to energy technologies

• 2. Insert additional goals to form
  comprehensive list for energy technologies

- Comparable Student Cost
- Innovative Leadership on Campus
- Realistic New Technologies
- Electricity Quality and Reliability
3. Organize goals to create balanced model

• Remove some goals

• Add/Combine some goals

- Ease of Operation and Maintenance
- Incorporates Ongoing Research
- Model for Sustainable Living
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• Goal Model

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Options

• Biogas Digestor
• Microturbine
• Fuel Cell
• Stirling Engine
• Photovoltaic Cells
• Electric Vehicles
• Energy Efficiency Smart Grid Smart Building
• Geothermal Heat Pump
• Solar Water Heater
• Greywater Heat Recovery
• Radiant Slab Heating
• Natural Gas

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Biogas Digestor

• Reactor tank
• Produces methane gas from anaerobic digestion
• Odor issues?
• Ongoing research by Gil Masters and Craig Criddle

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Microturbine

• Combined Heat and Power (CHP)
• Save 40 - 50 of energy compared to conventional
  power plant
• Ongoing research by Gil Masters and Craig Criddle

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Fuel Cell

• Combined Heat and Power (CHP)
• Save 40 - 50 of energy compared to conventional
  power plant
• Ongoing research by Gil Masters and Craig Criddle

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Stirling Engine

• Combined Heat and Power (CHP)
• Capture and use waste heat from small power
  plants located at the end use
• Save 40 - 50 of energy compared to conventional
  power plant
• Ongoing research by Gil Masters and Craig Criddle

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Photovoltaic Cells

• Use sunlight to generate electricity
• Renewable resource
• Low operation and maintenance involved
• Ongoing research by David Sheu

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Electric Vehicles

• Store extra electricity in plug-in hybrid
  vehicle, use as emergency generator
• Electricity equivalent 1/gallon
• By charging during off-peak hours, 70 of
  light-vehicle miles could run on todays
  electricity grid
• Ongoing research by Paul Kreiner

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Energy Efficiency Smart Grid Smart Building

• Monitor electricity rates
• Adjust building electricity usage dynamically
• Minimize electricity costs

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Geothermal Heat Pump

• Pumps heat to or from the ground into building
• Uses less electricity than typical furnace
• Can also be reversed for air conditioning

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Solar Water Heater

• Passive Integral Collector Storage (ICS)
• Potentially no pump, no controller, no sensors,
  but depends heavily on climate and time-of-use
• Ongoing research by Jonas Ketterle

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Greywater Heat Recovery

• Ongoin research by Paul Kreiner
• Take heat from used shower water and turn into
  energy

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Radiant Slab Heating

• Run tubing inside floor to move heat through
  building
• Heat rises up from floor to the air
• Feet always warm
• Currently used in some Stanford graduate student
  housing

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Plug and Play Thermal-Energy System
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Option Packages
Gil's Choice (Everything) Biogas
Digester Microturbine Fuel Cell Stirling
Engine Photovoltaic Cells Electric
Vehicles Energy Efficiency Smart Grid Smart
Building Geothermal Heat Pump Solar Hot Water
Heater Greywater Heat Recovery Radiant Slab
Heating Natural Gas
Solar-Electric Photovoltaic Cells Electric
Vehicles Energy Efficiency Smart Grid Smart
Building Geothermal Heat Pump Solar Hot Water
Heater Greywater Heat Recovery Radiant Slab
Heating
Combined Heat and Power Biogas Digester Microturbi
ne Fuel Cell Stirling Engine Natural Gas Radiant
Slab Heating
Improved Baseline Green Photovoltaic Cells Energy
Efficiency Smart Grid Smart Building Geothermal
Heat Pump Solar Hot Water Heater Radiant Slab
Heating
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Possible Questions and Tradeoffs

• What are the costs of different technologies?
  How can the design team successfully navigate the
  potentially competing desires to minimize first
  cost and reduce energy use through novel and
  innovative technology?
• If the Green Dorm uses a variety of new
  technologies, how can the design team ensure the
  requisite quality and reliability needed for a
  dorm?
• How might the combination of a diverse set of
  energy and electricity generation technologies
  interact with each other? What technologies can
  simultaneously satisfy multiple goals?
• If the Green Dorm is radically different in its
  design and day-to-day operation, how will that
  affect housing, maintenance, and facilities?
  Will those considerations increase the operation
  cost, and thus possibly the cost passed on to
  student residents?

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Solar-Electric