1. Energy & EcoTechnology
Module 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

2. 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
M
4.9b

3. 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
Interior
Exterior
www.bit.ly/EcoTechnology

4. Barrel Smoking - Meat
Open-Air Drying - Fruits
Indoor Drying - Tobacco
Solar Dehydrator

5. To dry food you need…
Heat
Airflow
Protection

6. Open-Air Solar Drying
Drying of fruit on
top of netting in summer
Sun-curing
oriental tobacco
Drying rack for herbs

7. Evaporation
Evaporation
 Water temperature
 Air-Water Contact Area
 Air Circulation
 Air Dryness
 Time

8. Indoor Drying
Indoor Drying Rack
La Vera Tobacco Drying House
Tobacco Drying

9. Smoking
La Vera Pimentón
La Vera red pepper smoking
house
Smoking tripod with meat
Smoking barrel with fish
Smoking fish in Africa

10. Air Density
Bouyancy
Temperature
Density
Humidity
Suspended particles
(dust, etc.)

11. 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

12. 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

13. Moving fluids
Pressure in entry
(pushing the fluid)
Contact
Pressure in exit
(pulling the fluid)
Obstacles

14. M4.9 * How do we Design Good
EcoTechnologies?
Organized Complexity
Appropriate technology
Heating, Cooking
Drying
Cooling
Watering
Individual
Collective
Interior
Exterior

15. & Transpiration in plants
See "Cooling Science"
in
www.bit.ly/EcoTechnology
Cooling Science
By Evaporation

16. Zeer Pot
Fridge
Invented in Nigeria by
Mohammed Bah Abba in
1995.
However there are reports
that the technology was
used in Ancient Eygpt.

17. By Creating Air Currents
See "Cooling Science"
in
www.bit.ly/EcoTechnology

18. 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

19. By Sucking-in Cooler Air
See "Cooling Science"
in
www.bit.ly/EcoTechnology
35C
13C

20. 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

21. & other Cool Fridges
cold 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 thermostat
cuts off power when
needed temp is reached
to measure
used energy
Imagination

22. 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
Interior
Exterior
www.bit.ly/EcoTechnology

23. Evaporation - higher
energy molecules escape
Condensation - gas
molecules near surface loose
KE to liquid

24. Cloud
Seeding

27. 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'

28. Fog Basking
Beetle
or Darkling
Beetle
(Onymacris
Unguicularis)
Drinking from
Water Drops
Collected
Garoé Tree, in La Gomera, Canary Islands
Fog Catchers

29. Fog Catchers
Fog
Catching
nets in Lima,
Peru
Design of
Coastal
Fog
Towers,
for Chile

30. Solar
Stills

31. Solar
Stills

32. osmosis
Reverse
osmosis >
For water purification

33. Pumps
saqiya chain pump,
current Turkey,
1206
Archimedes' Screw
See "Water Pumps"
in
www.bit.ly/EcoTechnology

34. 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

35. 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 at
nodoespiral@
nodoespiral.ne
t
Present

36. Energy & EcoTechnology
Module 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

37. 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
M
4.10
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