Week 13

Final project presentations Friday, May 8, 2015
Hill House energy audit and Slides
Provost’s House energy audit and Slides

Thursday, May 7, 2015
Prep for final presentations (be prepared to present final calculations)

Tuesday, May 5, 2015
Prep for final presentations (be prepared to present preliminary calculations in class)

AdBlue Chemistry – now why would I need that?

2(NH2)2CO → 2NH3 + 2HNCO
2HNCO + 2H2O → 2CO2 + 2NH3
4NO + 4NH3 → 4H2O + 4N2   Ammonia reduces NOx to produce N2 allowing a diesel engine to run lean and reduce soot emissions.

2(NH2)2CO + 4NO + O2 → 4N2 + 4H2O + 2CO2

IMG_5476

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Week 12

Friday, May 1, 2015
Kevin Bright on Colby’s new energy management plan

Tesla Energy’s new battery announcement

Thursday, April 30, 2015 – CLAS
J2$$ Poster Session at 11am in the Parker-Reed room of SSW
CLAS Poster Guidelines & Submission Form
Flagstaff Hut Waste Systems [Poster]: GB, CD
Flagstaff Hut Electricity Systems [Poster]: FB, DZ
Flagstaff Hut Heating Systems [Poster]: SM, AB

National Carbon Tax debate: DB, ELaM, GV, KM, JB, SJ, ER, AL
9am in Diamond 141

Tuesday, April 28, 2015
CLAS debate prep
Watch for an announcement from Tesla on Thursday

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Week 11

Lab Friday, April 24, 2015

Assignment:   (due 5/1/14)   Use SAM to model the energy production and financial return of the Beaver Ridge wind farm.   Hand in an Excel file of the modeled cash flow for Beaver  Ridge.
Beaver Ridge wind farm tour
2013 Sound Study
Modeling Wind Energy in SAM (instructional video)

Financials on the Beaver Ridge wind farm for input into SAM
Federal Tax Incentives

Thursday, April 23, 2015
Solar setup II – We walk through  SAM in Class – homework is to run SAM for your home state (or my house).  Hand in an Excel file of the modeled cash flow for your solar system (due 5/1/14).

Tuesday, April 21, 2015
Hans Albee from Revision Energy will walk us through their solar proposals for Prof. Donihue’s home;  Slide presentation
Solar Electric Tracker Proposal
Solar Electric Roof Proposal (305W PV system)
Solar Electric Roof Proposal (255W PV system)
Solar Electric Roof Proposal – King (255W PV System)
Solar Pro: Levelized Cost of Energy explained

Resources
A very green solar building.
Planet Money podcast (4 min 12 sec): How Solar Power Has Gotten So Cheap So Fast
NYT April 18, 2015: Solar Power’s impact on electric companies in HawaiiBangor Daily News, March 12, 2015: The value of solar power
Maine Distributed Solar Valuation Study and Addendum
Micro-grids: The Stafford Hill Solar Farm in Vermont
NRG Energy, Green Mountain Power roll our micro-grid for Vermont
ISO New England
MIT Technology Review: The Great German Energy Experiment
MIT Technology Review: Solar Power and Somewhere to Store It
How long does it take for photovoltaics to produce the energy used?
Environmental costs of solar panel manufacturing: Europe versus China
Domestic and overseas manufacturing scenarios of silicon-based photovoltaics: Life cycle energy and environmental comparative analysis
Liquid Batteries for Solar and Wind Power, NYT 23-Apr-15
Surface Orientation Graphic

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Week 10

Lab Friday, April 17, 2015
Data gathering at Hill House and Provost’s house for final project
Energy Audit for 75 Mayflower Hill residence done in 2010

Thursday, April 16, 2015
Kevin Bright, Colby’s Sustainability Coordinator will walk us through an introduction to the mechanics of energy audits (slides)

Tuesday, April 14, 2015
– Bioshelter Lab presentations
– Build the Bioshelter Model
– Bioshelter lab report due

Resources
Heat Load Estimation Reading
LBL Home Energy Saver Pro
Department of Energy Home Energy Resources

 

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Week 9

Lab Friday, April 10, 2015
Blower door test & tour/thermal imaging of Hill House
Worksheet
Resources
Blower Door Testing
Blower Door Calculations in detail
RED Calculator
LBL Home Energy Evaluation Tool (use detailed inputs)

Thursday, April 9, 2015
Home design, air infiltration & blower door testing
Energy audit for Prof. Donihue’s home
Solver Example using Blower Door Data
Test Equipment

Tuesday, April 7, 2015
Introduction to modeling using the Bioshelter as an example.

A simple first order model (play with cell D4)

Solver as part of our tool kit.

A good overview of Modeling

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Week 8

Lab Friday, April 3, 2015
Bioshelter lab – Developing a thermal heat storage model and an examination of potential food production

Thursday, April 2, 2015
Energy of the sun – overviews of PV and thermal systems, Lecture Slides, Notes,
Solar Flux Worksheet

Bioshelter Introduction: Slides; Growing Spaces Video links

Tuesday, March 31, 2015
Spring break energy take-aways
DB on the health effects of wood/charcoal stoves in developing countries
Presentation Slides
GB on a homeowners’ decision to choose geothermal heating
Presentation Slides  Excel spreadsheet

Break-out sessions to begin planning for CLAS projects

Exams – see the Excel answer sheet here and on the Google Drive Resources folder

More information on geothermal HVAC systems
Geothermal Heat Pumps
Ten Myths About Geothermal Heating and Cooling
Some environmental impact and payback period estimates for geothermal HVAC

Interesting readings on geothermal energy production
Iceland plans to get energy from magma
World’s first Magma-EGS system created
Geothermal power plants in California

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Spring Break March 22 – 29, 2015

Be attuned to your encounters with energy systems during break and plan to share your take-aways with the class when you return.

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Week 7

Lab March 20, 2015
Midterm exam

March 19, 2015
Midterm review

March 17, 2015
Modeling natural monopolies; profit maximization versus social welfare loss
Recommendation for how to sell a home heating system: Calculations from Class.

Fun reading: “Garbage and manure combine to create powerful assets for Maine diary farm”

A link to the New England Regional Greenhouse Gas Initiative, RGGI

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Week 6

Lab March 13, 2015:
Professor Lynne Lewis of Bates College will lead us in a tradeable energy pollution permits game

March 12, 2015: More on market structures, profit maximization, monopolies, and the economics of pollution abatement
Lecture slides

March 10, 2015: Electricity II
Economics of Electricity lecture slides and printable .pdf version
Sample electric bill

Fun Reading:

  • Is pee-power really possible?
  • The song at the end of this brief story about using waste heat from computers to heat/cool your home might help any of you still struggling with the Second Law of Thermodynamics
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Week 5

Lab March 6, 2015: Wind Power and Electricity Demand Modeling

March 5, 2015: Electricity I:  Electrical Power Generation

Electric Grid,  TransformerHousehold wiring, Electrical Panels 101

Other sources of Electricity: Fuel Cells, Real Fuel CellsSolar Cells

Notes: DWK Notes

March 3, 2015: Charlie Woodworth, Executive Director Maine Huts and Trails

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