FREEIJIS 2.0FREE ENERGY WAY OF LIVING

FREEIJIS :Free > available, indipendent, for allFriji > (in Swahili language) fresh, pureS > entropy symbol

Cooling system wich uses no electricity

Project by

Caterina Falleni

ON GOING USE

FRIDGE 33%

heating 52%

water 24%

kithcen 10%

WASTE than real necessity

70%

household electrical appliances 14%

33%OF TOTAL COUNTRY

50%OF ELECTRICITY

70%WASTE THAN REAL

NECESSITY

DOMESTIC ENERGYDOMESTIC CONSUMPTION

// ISSUE // an energy sustainable problem

The WORLD is RUNNING OUT of natural RESOURCES

ARE THESE SOLUTIONS? Why projecting a cooling system which uses alternative energy sources instead

Maybe yes or maybe not ( for ex: photovoltaic

energy has low efficiency and is made by non-renewable and

running out resources as silicon)

Non-Renewable Resources

IN ITALY

ARE THESE SOLUTIONS?

Renewable resources

natural gas

sun

petroleum

wind

etc...

geothermal energies biomass

coal

water

FREEIJIS 2.0Caterina Falleni

Confesercenti sources 2011

Bauman Consuming

Lifestyle“Consumo dunque sono”

FREEIJIS SYSTEM

+LOW TECH HIGH TECH

Latent heat accumulators, they exploit the transition phases to absorb and store a large amount of energy, while maintaining their temperature constant.

Refrigeration system that does not use electricity.The cooling is induced by the evaporation of the liquid, along with the PCM capsules.

Thermodynamical physical phenomenon through which it has a cooling, as a result of evaporation of a liquid.Sweating is a natural example of this principle, thanks to which one can maintein a constant temperature

sweat rural african fridge PCM capsulesflask PCM powder Crystal Glass

evaporative cooling PCM (Phase Change Material)

Caterina Falleni

// THE IDEA // new cooling system

FREEIJIS 2.0

Caterina Falleni

// EVAPORATIVE COOLING // from africa and our body to an object and to our home

FREEIJIS 2.0

AIR

MO

VEM

ENT

solar radiation is transfered to the

system as heat and energy

sand and water are heated, starting the evaporation process

the wet exterior walls of the system,

cause a greater evaporation, and so

a greater loss of energy

some energy of the system is absorbed by

the evaporation

the system attempts to restore the balance by absorbing energy

(as heat) from the inside, thus lowering

its temperature temperaturegoes down

where PCM could have an important role (as microincapsulate or meld)

transmitter and absorber

T°

T°

good energy transmitterporous material

That’s how evaporative cooling works

1

2

3

4

5

Caterina Falleni

// PCM // from NASA to our home

FREEIJIS 2.0

Gas

LiquidSolid Freezing

EvaporationSublim

ation

Melting

CondensationDepos

ition

250

200

150

100

50

0

kJ/K

g

Capacity to store and accumulate thermic energy

water

stone

wood

plastic

paraffin wax

PCM

is a substance with a high heat of fusion which, melting and solidifying at a certain temperature, is capable of storing and releasing large amounts of energy. Heat is absorbed or released when the material changes from solid to liquid and vice versa; thus, PCMs are classified as latent heat storage (LHS) units.

microscope image of PCM microcapsules blend with plaster to daub

piling matrix with 20% of PCMParaffine wax1975 experimental for astronauts clothes 2009 crystal glass application

CLASSIFICATION

PURE CAPSULES MELD

Caterina Falleni

Materials: ceramic, alluminum, water and glass foam (the inner layer has a really important role, and I made many different experimentation with different materials, but in my opinion PCM could be the best solution

FREEIJIS 2.0

// FREEIJIS 1.0 // experimental product to preserve food at home

20°cT° ext

10°cT° int

FORCE CONVECTION

FORCE CONVECTION

RADIATION

+capillarity

<<

<

<<<

< < < <<<

EVAP

OR

ATIO

N

EVAPORATION

Feedback temperature with cromogenic materials

Caterina Falleni

TEMPO in ore 1 5 10 20 50 90

21

20

19

18

17

16

15

14

13

12

11

10

TEM

PER

ATU

RA

in °C

Tem

pera

tura

inte

rna

Tem

pera

tura

est

erna

FREEIJIS 2.0

// FREEIJIS 1.0

Caterina Falleni FREEIJIS 2.0

DOMESTIC COOLING SYSTEM

that uses natural energy instead of electricity,exploiting technological innovation of

smart materials

macro encapsulated bound material

NEW COOLING SYSTEM

FREEIJIS 2.0

// design and experimentation of domestic refrigeration equipment that use the Freeijis system combined with PCM

experimental ideas

PCM specific application

Freeijis 2.0 not as system, but as product and tecnhnology on marketplace

// experimenting nanotechnologic porous materials, that are able of doing evaporate more or less liquid by varying the size of their pores, to achieve a total control of the internal temperature

inside the cavity where occours the evaporation of the liquid and the change of state of the same PCM

immersion of PCM like paraffin in a porous support such as ceramics

// FREEIJIS 2.0

FREEIJIS 2.0Caterina Falleni

HO

W F

REE

IJIS

WIL

LC

HA

NG

E TH

E W

OR

LD

preservation trasportationmatress, blanket, coat, gloves, ....walls, ceilings, windows

composite materials, buildingsemergency medicines transportation in western countries, medicines transportation and storage in developing

conservation in domestic environment and beyond, food transportation

// DIFFERENT APPLICATIONS //

i.e. instead standard domestig fridge electricity 33% saving

i.e. instead cooling apparat (3/4°c) oil 30% saving

lifestyle improvementi.e. instead air conditioner electricity 20% saving

FOOD MEDICAL CLOTHESCONSTRUCTION

Caterina Falleni FREEIJIS 2.0

// CONCLUSIONS //

FREEIJIS

SYSTEM

1 2 3

FREEIJIS 1.0 FREEIJIS 2.0

To embark on a path which starting point is energy indipendence and sustainability (particularly in Italy, in the first places of the energy-importing countries)

To save exhaustible fossile resources toward the use of a clean and natural energy

domestic food preservation product, that works

by “evaporative cooling” technology

+ PCM and smart materials (possibility to be

on the market before 2015)

assimilation by the public of the FREEIJIS system as a method of cooling, natural and effective, that can be applied to other hypothesized fields

experimental product about domestic food

preservation process with evaporative cooling

cooling system that does not use electricity

To use technology to macro-reproduce a micro-natural pprocess that has evolved and perfected over millions of years: the sweating

WHY FREEIJIS?

10°c

PCMPCM