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

2. The Problem 2

3. The Problem 3

4. The Solution
Hot air 4

5. The Solution
Hot air
Cool air 5

6. The Solution
Hot air
Cool air 6

7. The Solution
Hot air
Cool air 7

8. 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

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

10. 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

11. 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

12. 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

13. 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

14. 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

15. 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

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

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

18. 18

19. References Energy usage of air conditioners
Energy usage of swamp coolers
Energy and usage of M-cycle 19

20. Backup slide
Source: 20