Operational Analysis of Biogas Based Cold Storage

1. NationalInstituteofScience&Technology
[1]
B.TECH PROJECT PRESENTATION 2016-17
Preetam Kumar Jha 201340549 Project ID 9485
OPERATIONALANALYSIS OF BIOGAS
BASED COLD STORAGE
Presented By:
PREETAM KUMAR JHA
Roll no: 201340549
Under the guidance of
Mr. Bhagabati Prasad Pattnaik

2. NationalInstituteofScience&Technology
[2]
B.TECH PROJECT PRESENTATION 2016-17
Preetam Kumar Jha 201340549 Project ID 9485
OUTLINE
1. INTRODUCTION
2. WORKING PRINCIPLE & DESIGN
3. NEED TO RUN A VAM
4. CONVENTIONAL REFRIGERANTS
5. ECOFRIENDLY REFRIGERANTS
6. COST COMPARISION
7. DIFFERENCE IN TEMPERATURE
8. FUTURE SCOPE & CONCLUSION

3. NationalInstituteofScience&Technology
[3]
B.TECH PROJECT PRESENTATION 2016-17
Preetam Kumar Jha 201340549 Project ID 9485
INTRODUCTION
WHAT IS BIOGAS BASED COLD STORAGE?
• Biogas based cold storage is a VAM based cold storage
where the vapour generation is done by the burning bio
gas through a boiler.

4. NationalInstituteofScience&Technology
[4]
B.TECH PROJECT PRESENTATION 2016-17
Preetam Kumar Jha 201340549 Project ID 9485
• Boiler :- The boiler (or hot water generator) is used to
generate hot water which is used to heat up the compressors.
• Compressors :-The CHILL system has two compressors that
alternate in between the suction and regeneration process.
• .
• Condenser :-The condenser is a shell-and-tube heat-exchanger
used to condense the refrigerant released from the regenerator
(compressor).
• Evaporator :- The evaporator is either a blower or a bulk-milk
chiller.
WORKING PRINCIPLE & DESIGN

5. NationalInstituteofScience&Technology
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B.TECH PROJECT PRESENTATION 2016-17
Preetam Kumar Jha 201340549 Project ID 9485
WORKING PRINCIPLE & DESIGN(Con.)
• De-Superheater :- The de-superheater is a small heat-exchanger
connected in between the compressors and condenser.
• Valves :- Two types of valves is used one is Solenoid Valves
and an other one is Non-Return valves.
• Pumps :- Pumps are used to circulate cold water and hot water
into the heat-exchangers. Each of the pump used is described
below along with photograph.
• Cooling Tower :- Cooling tower is used to cool down the
ambient water which exits from the compressors and
condenser.

6. NationalInstituteofScience&Technology
[6]
B.TECH PROJECT PRESENTATION 2016-17
Preetam Kumar Jha 201340549 Project ID 9485
NEED TO RUN A VAM
• Heat Source :- Waste heat from the exhaust of a gas turbine, or
from the exhaust and water jackets of a reciprocating engine is
recovered for use through heat exchangers.
•
• Refrigent :- Vapor absorption systems work with non-CFC
refrigerants such as water or ammonia.
•
• Absorbent :-Absorbent is a material that has great affinity with
water.

7. NationalInstituteofScience&Technology
[7]
B.TECH PROJECT PRESENTATION 2016-17
Preetam Kumar Jha 201340549 Project ID 9485
CONVENTIONAL REFRIGERANTS
• The chlorofluorocarbons(CFCs) and hydrochloroflurocarbons
(HCFCs) are referred to as ozone depleting substances
(ODS).
• An ODS molecule has potential to destroy ozone molecules
during its entire lifetime.
• Ozone is a gas composed of three bonded oxygen atoms
(O3).In the Earth’s atmosphere, ozone is formed from
molecular oxygen (O2) in the reactions initiated by the UV
light.
• The ozone layer encircles the stratosphere at approximately
10 km above ground level.

8. NationalInstituteofScience&Technology
[8]
B.TECH PROJECT PRESENTATION 2016-17
Preetam Kumar Jha 201340549 Project ID 9485
ECOFRIENDLY REFRIGERANTS
• Ammonia (NH3) is a well-known refrigerant, particularly
applicable in large, industrial plants where its advantages can be
fully utilized without compromising safety.
• Ammonia is a highly efficient refrigerant.
• Due to the toxicity and flammability of ammonia, installations
using ammonia are governed by national regulations.
• Ammonia is a natural refrigerant. It has zero ODP and zero GWP.
In combination with its efficiency, it is one of the most
environmentally friendly refrigerants.

9. NationalInstituteofScience&Technology
[9]
B.TECH PROJECT PRESENTATION 2016-17
Preetam Kumar Jha 201340549 Project ID 9485
COMPARISON WITH CONVENTIONAL REFRIGERANTS ON
COST AND CYCLE

10. NationalInstituteofScience&Technology
[10]
B.TECH PROJECT PRESENTATION 2016-17
Preetam Kumar Jha 201340549 Project ID 9485
DIFFERENCE IN TEMPERATURE
Date Amount
of Water
(liters)
Cycle
Start
Time
Compressor
1
Temperature
(⁰C)
Compressor
2
Temperature
(⁰C)
Compressor
1 Pressure
(kg)
Compressor
2 Pressure
(kg)
Condenser
Pressure
(kg)
Initial Chiller
Temperature
(⁰C)
Final Chiller
Temperature
(⁰C)
Cooling
Tower Tank
Temperature
(⁰C)
Cooling
Power
kWatt
Cooling Power
TR
X 0 0 0 0 0 0 A32 a124 30 C1 T1
X 10:20 30 10 12 5 5 a2 29 a3 18 29 C2 T2
X 10:40 6 35 4 16 4 a4 29 a5 16 30 C3 T3

11. NationalInstituteofScience&Technology
[11]
B.TECH PROJECT PRESENTATION 2016-17
Preetam Kumar Jha 201340549 Project ID 9485
For the enhancement of technology at the efficient ground and
its role in size & better design of cold storage based on
Biogas.
FUTURE SCOPE AND CONCLUSION

12. NationalInstituteofScience&Technology
[12]
B.TECH PROJECT PRESENTATION 2016-17
Preetam Kumar Jha 201340549 Project ID 9485
[1] www.epa.gov/files/documents
[2] GreenChill Laboratory Manual.pdf
[3] GreenChill_cost _analysis.pdf
[4] Vapour absorption machine voltas.pdf
REFERENCES

13. NationalInstituteofScience&Technology
[13]
B.TECH PROJECT PRESENTATION 2016-17
Preetam Kumar Jha 201340549 Project ID 9485
THANK YOU!