Balázs Klapper, Elad Shadman, Eytan Tirosh Cooling in Developing Countries Balázs Klapper, Elad Shadman, Eytan Tirosh

The Problem 2

The Problem 3

The Solution Hot air 4

The Solution Hot air Cool air 5

The Solution Hot air Cool air 6

The Solution Hot air Cool air 7

The Solution The houses are represented by the circles M-cycle The houses are represented by the circles Our system is suitable for 10 houses

The Heart of the System- Maisotsenko Cycle Multi-layer device to cool down air 9

The Heart of the System- Maisotsenko Cycle I. Half of the air goes in hot and comes out cooled in the other side I. Hot air Cool air

The Heart of the System- Maisotsenko Cycle I. Half of the air goes in hot and comes out cooled in the other side II. Hot air Cool air II. The source of cooling is evaporation in the wet channels

The Heart of the System- Maisotsenko Cycle I. Half of the air goes in hot and comes out cooled in the other side III. Hot air Cool air ≈ ≈ ≈ ≈ ≈ ≈ ≈ II. The source of cooling is evaporation in the wet channels III. The vapor escapes through the air blown perpendicularly

Why is it the Best Solution? M-Cycle Desert Cooler Air Conditioning For 10 houses: 10.5 kWh Cooling Power 0.6 kWh 3.3 kWh Energy Consumption 15 liters/hour 30 liters/hour none Water Consumption בקירור מדברי נוספת לחות לאוויר שיכולה לגרום להרס בתי החמר ולאווירה לא נעימה 13

YES! Overall Maintenance Water (15 l/h)- Reduce that by desiccants Energy consumption 600 W for the cooling system 30 W for the water pump Is it sustainable? YES! 14

Costs It is already in market 25% more expensive than Air Conditioner ≈10000 𝑈𝑆𝐷 Tubes ≈10000 𝑈𝑆𝐷 Solar panels ≈500 𝑈𝑆𝐷 Split up between 10 houses adds up to ≈2050 𝑈𝑆𝐷 per household Daily payment for 5 years is ≈1 𝑈𝑆𝐷 15

Solar Panels Cooling is necessary mainly in daytime Enough for the 650 Watts We need 3 less efficient solar panels

Future plans Standard air flow Using air ring In order to increase efficiency 17

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References Energy usage of air conditioners https://www.quora.com/How-much-electricity-units-is-used-by-1-ton-split-AC Energy usage of swamp coolers http://www.consumerenergycenter.org/residential/heating_cooling/evaporative.html Energy and usage of M-cycle http://www.coolerado.com/ 19

Backup slide Source: http://www.coolerado.com/pdfs/PowerMagMCTCfiguresCooleradoTIC.pdf 20