redesigning eros - love all beings 1b
TRANSCRIPT
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Energy & EcoTechnologyModule 4 of the PDC+++PDC
++
+We dedicate this Module to the Mother &
Father of Integral Permaculture: Dana Meadows & Howard Odum, two original
pioneers who helped humanity make great strides in understanding systemic
thinking, in all four quadrants.
How do we Design good EcoTechnologies? Part 1b*
Technology is the application of science, so a good basic knowledge of science is essential if we are to design technologies of any kind.
*And everything that transforms energy or matter from one form to another is a technology, so science and technology really are basic for life, and certainly
for designers. *
In this first part of two we explore the relevance of space elevators to permaculture, then delve into the science of heat, flows, optics & materials in
order to understand how to best design ovens, solar devices, heating & cooling technologies - with lots of examples
Class M4.9b
EcoTech
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Class recorded during
the Online Festival to Celebrate
Evolutionary Love
live from 11th to the 23rd
of February 2013
ongoing & asynchronic (in our own time)
after that
by
www.presents.nodoespiral.net
Us
Me
All Life
ReDesigning Eros
Part2 M4.9b
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M4.9 * How do we Design Good EcoTechnologies?
Organized Complexity
Appropriate technology 1
a) Heating
b) Cooking & Optics
c) Drying
d) Cooling
e) Watering
Individual
Collective
Inte
rior Exter ior
www.bit.ly/EcoTechnology
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Barrel Smoking - Meat
Open-Air Drying - Fruits
Indoor Drying - Tobacco
Solar Dehydrator
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To dry food you need…
Heat
Airflow
Protection
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Open-Air Solar Drying
Drying of fruit on top of netting in summer
Sun-curing oriental tobacco
Drying rack for herbs
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Evaporation
Evaporation
Water temperature Air-Water Contact Area Air Circulation Air Dryness Time
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Indoor Drying
Indoor Drying Rack
La Vera Tobacco Drying House
Tobacco Drying
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Smoking
La Vera PimentónLa Vera red pepper smoking
house
Smoking tripod with meat
Smoking barrel with fish
Smoking fish in Africa
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Air Density
Bouyancy
Temperature
Density
Humidity
Suspended particles(dust, etc.)
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Small Solar Dehydrators
Fridge solar dehydrator in Dell Artemis Farm, California
Recycled solar dehydrator in Nova Scotia Demo in Transition Town Worthing
Wildland Conservation Service in Missoula
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Designed to be• attractive, • easy to transport, and• quick at drying (big collector & small drying space)
Solar Dryer• In a University campus, to be used by the students
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Moving fluids
Pressure in entry(pushing the fluid)
Contact
Pressure in exit(pulling the fluid)
Obstacles
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M4.9 * How do we Design Good EcoTechnologies?
Organized Complexity
Appropriate technology
Heating, Cooking
Drying
Cooling
Watering
Individual
Collective
Inte
rior Exter ior
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& Transpiration in plants
See "Cooling Science" in
www.bit.ly/EcoTechnologyCooling Science
By Evaporation
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Zeer Pot Fridge
Invented in Nigeria by Mohammed Bah Abba in
1995.
However there are reports that the technology was used in Ancient Eygpt.
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By Creating Air Currents
See "Cooling Science" in
www.bit.ly/EcoTechnology
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Draft Cabinets & Caves
Las Cuevas Árabes de Brihuega
Ancient food storage spaces - conserve same temperature all day & night, some 12degrees C
<< David Holmgren's Fridge
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By Sucking-in Cooler Air
See "Cooling Science" in
www.bit.ly/EcoTechnology
35C
13C
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By Storing Ice & Snow
snow pit can last until summer -
used as cool storage for milk products,
steps cut into sides as snow level lowers
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& other Cool Fridgescold air heavier
insulation best in freezer part
0.1 kWh / day
vertical door =losses
90 seconds / hour (silent)
1 kWh / day is wasted
consume less power/volume, even though they maintain much colder temperatures
New thermostatcuts off power when
needed temp is reached
to measure used energy
Imagination
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M4.9 * How do we Design Good EcoTechnologies?
Organized Complexity
Appropriate technology 1
a) Heating
b) Cooking & Optics
c) Drying
d) Cooling
e) Watering
Individual
Collective
Inte
rior Exter ior
www.bit.ly/EcoTechnology
![Page 23: ReDesigning Eros - Love All Beings 1b](https://reader035.vdocument.in/reader035/viewer/2022081520/5879f3941a28ab70298b51fd/html5/thumbnails/23.jpg)
Evaporation - higher energy molecules escape
Condensation - gas molecules near surface
loose KE to liquid
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Cloud Seeding
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Condensation due to
expansion of air
(lowering of pressure cools
air)
Condensation due to cooling of air
(next to a cold surface)
Apart from
'seeding'...
All relative temperature, pressure, humidity ... & 'seeds'
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Fog Basking Beetle
or Darkling Beetle
(Onymacris Unguicularis)
Drinking from Water Drops
Collected
Garoé Tree, in La Gomera, Canary Islands
Fog Catchers
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Fog Catchers
Fog Catching nets in Lima, Peru
Design of Coastal Fog Towers, for Chile
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Solar Stills
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Solar Stills
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osmosis
Reverseosmosis >
For water purification
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Pumpssaqiya chain
pump, current Turkey,
1206
Archimedes' Screw
See "Water Pumps" in
www.bit.ly/EcoTechnology
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Pumps
Bicycle-powered Rope Pump, in
Nicaragua
"We're probably known around the
universe as that really noisy
blue planet where everybody
pees in their water."
(Will Durst)
Gray Water Harvesting
See "Gray&BlackWater" in
www.bit.ly/EcoTechnology
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5. Santa Valentina Present for Butterflies
A webinar about Food Science
* the Big Evolutionary Controversies
* Better Food & the Landbase
* How we're kept stupid & sick with old food myths
For people who contribute 2-3 posts in the Wiser group! Before end March :)
email us atnodoespiral@
nodoespiral.net
Present
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Energy & EcoTechnologyModule 4 of the PDC+++PDC
++
+We dedicate this Module to the Mother &
Father of Integral Permaculture: Dana Meadows & Howard Odum, two original
pioneers who helped humanity make great strides in understanding systemic
thinking, in all four quadrants.
How do we Design good EcoTechnologies? Part 1b*
Technology is the application of science, so a good basic knowledge of science is essential if we are to design technologies of any kind.
*And everything that transforms energy or matter from one form to another is a technology, so science and technology really are basic for life, and certainly
for designers. *
In this first part of two we explore the relevance of space elevators to permaculture, then delve into the science of heat, flows, optics & materials in
order to understand how to best design ovens, solar devices, heating & cooling technologies - with lots of examples
Class M4.9b
EcoTech
![Page 37: ReDesigning Eros - Love All Beings 1b](https://reader035.vdocument.in/reader035/viewer/2022081520/5879f3941a28ab70298b51fd/html5/thumbnails/37.jpg)
Class recorded during
the Online Festival to Celebrate
Evolutionary Love
live from 11th to the 23rd
of February 2013
ongoing & asynchronic (in our own time)
after that
by
www.presents.nodoespiral.net
Us
Me
All Life
ReDesigning Eros
Part3 M4.10
next ...