Engr305 Appropriate Technology Projects

Below are service learning projects from Engr305 Appropriate Technology, which is a course on appropriate technology at Humboldt State University taught by instructor Lonny Grafman.

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  AEF food dehydrator
  A solar dehydrator to help preserve surplus crops
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  AEF greywater
  Greywater system at the CSA, Arcata Educational Farm
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  AEF informational kiosk
  An earthen informational kiosk
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  AEF photovoltaic system
  Modified off-grid photovoltaic system
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  AEF solar water heater
  Improved solar water heating system
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  AEF spiral herb garden
  Restored the existing herb spiral

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  Air Ship Air City rooftop greywater filtration
  A rooftop greywater filtration system
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  Aleiha's parabolic solar cooker
  Parabolic Solar Cooker
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  Amal's ethanol still
  A valved reflux ethanol still
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  Backyard Biodigester
  A biodigester converting organic waste to a fuel source
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  Bayside Park Farm living roof
  garden roof to Bayside's new animal hutch
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  Bayside Park Farm rainwater catchment system
  catchment system that collects and stores rainwater for gardening purposes
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  Bayside Park Farm vermicomposting
  vermicomposting for bayside farm to make own compost
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  Bike Rodeo bicycle blender
  A kid's bike blender for Rio Dell Community Resource Center
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  Bike trailer
  A bike trailer from a converted baby stroller
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  Blue ox earthen oven
  Blue Ox earthen oven
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  Bottoms strawbale earthen plaster
  Earthen plaster and natural paint recipes

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  CCAT bike blender 2015
  Bike that supplies mechanical power to blender
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  CCAT bike powered tools
  Bike that supplies electricity for power tools
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  CCAT Clay-straw slip wall
  Clay-straw slip wall of CCAT's Greenshed
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  CCAT clothes drying
  Efficient clothes drying system for CCAT
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  CCAT Cold Box
  An energy efficient solution to a refrigerator
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  CCAT Compost System
  CCAT's comprehensive composting system
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  CCAT earthbag garden terrace
  An earthbag terrace at CCAT
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  CCAT greenhouse natural wall
  An aesthetically pleasing natural earthen wall built by clay and straw slip methods
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  CCAT greenhouse rainwater catchment
  Greenhouse Rainwater Catchment System at CCAT
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  CCAT greenshed cob wall
  Cob wall of CCAT's Greenshed
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  CCAT greenshed north wall
  Cordwood and mortar wall of CCAT's Greenshed
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  CCAT greenshed solar lighting 2015
  CCAT lighting improvement to greenshed
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  CCAT greenshed west wall
  Clay-straw slip wall of CCAT's Greenshed
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  CCAT greywater 2017
  Greywater pump at CCAT
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  CCAT greywater marsh (2008)
  CCAT's Greywater Marsh 2008
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  CCAT greywater marsh (current)
  CCAT Greywater Marsh Continued
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  CCAT interpretive wind turbine display
  Demonstration wind turbine
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  CCAT's living roof
  Replacing CCAT's living roof
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  CCAT MEOW 2012
  Refurbishment of CCAT's Mobile Energy Operation Wagon
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  CCAT MEOW 2015
  Refurbishment of CCAT's Batteries for Mobile Energy system
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  CCAT MEOW 2019
  Pedal bike used for ‘’Pedaling for power”
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  CCAT natural concrete stain
  Natural concrete stain
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  CCAT natural paints 2017
  Mural at CCAT using natural paints
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  CCAT natural paint project
  Interior paints from natural ingredients
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  CCAT natural wall construction
  Earthen informational kiosk for CCAT
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  CCAT outdoor solar heated wash station
  A Passive Solar Heated Wash Station at CCAT
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  CCAT pedal powered grain mill
  Pedal powered grain mill for CCAT
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  CCAT pedal powered TV
  Updated version of CCAT pedal powered bicycle
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  CCAT rainwater catchment system
  CCAT's current rainwater catchment system
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  CCAT rainwater catchment system
  Rainwater Catchment System at CCAT
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  CCAT Raised Garden Beds
  Controlled beds of soil above toxic ground
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  CCAT remediation zone
  A stable slope for planting and attracting beneficial insects
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  CCAT Retaining Wall
  Retaining wall for slope erosion at CCAT
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  CCAT rocket mass cobb bench heater
  A Rocket Mass Cobb Bench Heater
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  CCAT rocket stove
  CCAT's improved fuel rocket stove
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  CCAT small rainwater catchment
  A Small Rainwater Catchment System at CCAT
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  CCAT small rainwater catchment
  Rainwater catchment for CCAT's cob bench roof
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  CCAT's Vermicomposting Bin
  CCAT's vermicomposting bin
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  CCAT vertical garden
  CCAT's Vertical Garden integration for sustainable plant growing
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  CCAT yurt roof 2019
  A Yurt Roof at CCAT

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  Chris's ENGR305 Solar Food Dehydrator
  A hybrid, solar food dehydrator
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  Compressed earth brick press
  An exploration of compressed earth bricks
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  Cooperation Humboldt potato tower
  A Vertical Garden Used For Growing Potatoes
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  Deidre's vertical vegetable garden
  Solar powered vertical vegetable garden
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  Devan's vertical axis wind turbine
  Experimental Vertical Axis Wind Turbine
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  Emily small aquaponic system
  micro-aquaponic system to grow personal vegetables/fruit
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  Engr305 peanut sheller project
  Peanut sheller made from clay and newspaper
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  Engr305 pulser pump
  A Labeled Pulser Pump
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  Engr305 pulser pump
  A working model of a Pulser pump
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  Engr 305 solar learning station
  Instructional Solar Learning Station
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  ENGR305 windbelt
  Testing new materials for prototype windbelts
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  Ethanol from organic sugar beets versus refined cane sugar
  Determining the cost inputs and energy outputs of small scale ethanol production

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  HCOE bike power classroom
  A Bike Powered Blender
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  HBCSL cobb oven
  A cobb oven for the Humboldt Bay Center for Sustainable Living
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  HBCSL solar shower
  A solar shower for the Humboldt Bay Center for Sustainable Living
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  HSU solar suitcase
  A Solar Suitcase
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  Jefferson Community Center compost
  A large composting system for Jefferson School
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  Jefferson Community Center E305 teach-in
  A vermicomposting workshop
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  Jefferson Community Center edible landscape
  Garden Beds in the Edible Landscape
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  Jefferson Community Center native landscaping 2017
  Native Landscaping at the Jefferson Community Center
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  Kiva's straw bale greenhouse
  A straw-bale greenhouse
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  Loleta Elementary rainwater
  Rainwater Catchment System at Loleta Elementary
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  M Street Eureka rainwater catchment
  A rainwater catchment system for residential property
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  Mattole Community Center rainwater catchment
  A rainwater catchment from the roof of the Mattole Valley Community Center in Petrolia
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  Millcreek greywater
  A residential greywater processor
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  Old Growth Cellar rainwater catchment
  A rainwater catchment system for Old Growth Cellars

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  Papasan Chair Solar Cooker
  A solar cooker and chair when not in use
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  Parabolic basket and tin can solar cooker
  Solar cooker out of local invasive species and waste materials
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  Plastering CCAT Earthbag Terrace
  A sturdy, natural plaster covering to the EarthBag gardening terrace being built in front of CCAT
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  Rocket stove biomass charcoal
  Use of biomass waste charcoal briquettes for rocket stove
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  Rowan's portable pedal power generator
  A pedal power generator
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  SALIRAJA Yurt Project
  A Yurt Roof Composed of Old Cans
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  Small greenhouse rainwater catchment
  A rainwater catchment system for a greenhouse
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  Solar Charged Lawnmower
  An electric lawnmower that utilizes solar power as an energy source
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  Solar heating box
  A passive solar heating box
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  Stanley and Kristi's eco-friendly carboard furniture
  Furniture made from cardboard
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  Sunbrella
  An umbrella in the rain, a solar cooker in the Sun
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  Sunny Brae Middle School Garden
  A garden at Sunny Brae Middle School
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  Sunny Brae rainwater catchment system
  A residential rainwater catchment system

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  Treadmill-a-volt treadmill powered charging
  Treadmill power for the Humboldt Bay Center for Sustainable Living
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  Troubleshooting the AEF photovoltaic system
  Troubleshooting, repairing, testing and maintaining a preexisting off-grid photovoltaic system
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  Tule Fog Farm Grassfed Shed
  An indoor space for pigs and goats that also restores a previous brownfield while improving the overall natural landscape
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  Umbrella solar cooker
  A multi-use solar cooker
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  Wild Chick Farm
  A commercial pastured chicken operation in Arcata, California