adsorption refrigeration system

1. ADSORPTION
REFRIGERATION SYSTEM
Supervised by
Dr. Ahmed Mostafa
Eng. Mohamed Hassanain
Helwan University
Faculty of Engineering
Mechanical Power Eng. Dep. Mattaria-Cairo

2. ELECTRIC DRIVEN SYSTEMS THERMAL DRIVEN SYSTEMS
Vapor compression
refrigeration system
Vapor absorption
refrigeration system
Vapor adsorption
refrigeration system
Vapor jet
refrigeration system
REFRIGERATION SYSTEMS

3. VAPOR ADSORPTION
REFRIGERATION SYSTEM

5. Classic
Working
Pairs
A/C
cooling
freezing
Silica gel & Water
Zeolite & Water
Activate carbon &
Methanol
Activate carbon &
Ammonia

6. DOUBLE BED ADSORPTION
REFRIGERATION SYSTEM

7. Adsorption bed
Condenser
Cooling water
tank
water
pumCoolingp
Water solenoid
valve and PVC
pipes

8. Hot water tank
Hot water pump
Water solenoid valve
and PVC pipes Desorption bed
Electric heaters

10. The objective of the Test :
1) Determine the amount of freon that is being adsorbed by a
calibrated amount of silica gel at different temperature.
2) Draw PTX diagram.

11. The components of the Test:
1: Vacuum pump.
2: Water tank.
3:Refrigeration Cell.
4: Adsorption Bed.
5:Refrigerant Cylinder.
6:Pressure gauge.
7:Electronic Balance.
8:Thermocouples.
9: Water circulator.
10: valves

12. The Steps of the Test:
1) Determine the amount of silica gel and insert it into the Adsorption
Bed.
2) Connect the Adsorption Bed to a vacuum pump and raise the
temperature of the Adsorption Bed to make sure the silica gel is dry.
• This is done by opening valve 1 and closing valve 2 & 3.
1 2 3
Air
CLOSE
OPEN

13. The Steps of the Test:
1 2 3
Air
CLOSE
OPEN
3) Discharge the circuit from the air completely.
• This is done by opening valve 1 & 2 and closing 3

14. The Steps of the Test:
3) Charge refrigeration cell by closing valve 1 & 2 and opening valve 3 .
Freon

15. The Steps of the Test:
4) Determine the weight of Adsorption Bed using Electronic Balance and
then place it in the water tank and Open valve 2 between Adsorption
Bed and Refrigeration Cell and close 1 & 3.
Freon
5) Determine the weight of
Adsorption Bed after testing
to determine the amount of
freon absorbed.

16. The Steps of the Test:
6) Use the thermocouple and pressure gauge to find out
the temperature for both Adsorption Bed and
Refrigeration Cell.
7) The test repeats at different temperatures for the
Adsorption Bed.

18. The objective of the Main Apparatus :
1: Performance evaluation of adsorption cooling
system.
2: Studying effect of Tc,Te,Tg.

19. The components of the Main Apparatus :
1: Two adsorbent beds.
2: Condenser.
3:Evaporator.
4: Capillary tube.
5:Water tanks.
6:Pumps.
7:Electric heaters.
8:Pipes.
9: Instrumentations.
10: valves

20. The Steps of the Main Apparatus :
1.Cooling water cycle

21. The Steps of the Main Apparatus :
2.Hot water cycle

22. The Steps of the Main Apparatus :
3.Chilled water cycle

23. The Steps of the Main Apparatus :
4. Refrigerant cycle

24. The Steps of the Main Apparatus :
Cycle Enhancement
to equalize the pressure and temperature
of the two adsorbers the systems goes on
the heat and mass recovery phase

25. The Steps of the Main Apparatus :
Cycle Enhancement
1. Heat recovery :

26. The Steps of the Main Apparatus :
Cycle Enhancement
2. Mass recovery :

28. Thank You