redesigning eros - love all beings 1b

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

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

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

Barrel Smoking - Meat

Open-Air Drying - Fruits

Indoor Drying - Tobacco

Solar Dehydrator

To dry food you need…

Heat

Airflow

Protection

Open-Air Solar Drying

Drying of fruit on top of netting in summer

Sun-curing oriental tobacco

Drying rack for herbs

Evaporation

Evaporation

Water temperature Air-Water Contact Area Air Circulation Air Dryness Time

Indoor Drying

Indoor Drying Rack

La Vera Tobacco Drying House

Tobacco Drying

Smoking

La Vera PimentónLa Vera red pepper smoking

house

Smoking tripod with meat

Smoking barrel with fish

Smoking fish in Africa

Air Density

Bouyancy

Temperature

Density

Humidity

Suspended particles(dust, etc.)

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

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

Moving fluids

Pressure in entry(pushing the fluid)

Contact

Pressure in exit(pulling the fluid)

Obstacles

M4.9 * How do we Design Good EcoTechnologies?

Organized Complexity

Appropriate technology

Heating, Cooking

Drying

Cooling

Watering

Individual

Collective

Inte

rior Exter ior

& Transpiration in plants

See "Cooling Science" in

www.bit.ly/EcoTechnologyCooling Science

By Evaporation

Zeer Pot Fridge

Invented in Nigeria by Mohammed Bah Abba in

1995.

However there are reports that the technology was used in Ancient Eygpt.

By Creating Air Currents

See "Cooling Science" in

www.bit.ly/EcoTechnology

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

By Sucking-in Cooler Air

See "Cooling Science" in

www.bit.ly/EcoTechnology

35C

13C

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

& 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

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

Evaporation - higher energy molecules escape

Condensation - gas molecules near surface

loose KE to liquid

Cloud Seeding

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'

Fog Basking Beetle

or Darkling Beetle

(Onymacris Unguicularis)

Drinking from Water Drops

Collected

Garoé Tree, in La Gomera, Canary Islands

Fog Catchers

Fog Catchers

Fog Catching nets in Lima, Peru

Design of Coastal Fog Towers, for Chile

Solar Stills

Solar Stills

osmosis

Reverseosmosis >

For water purification

Pumpssaqiya chain

pump, current Turkey,

1206

Archimedes' Screw

See "Water Pumps" in

www.bit.ly/EcoTechnology

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

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

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

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 ...