1. WASTE HEAT RECOVERY IN KITCHEN
-AN EMPIRICAL STUDY BY
MOHAMMAD JAWED
Assistant Professor,
Kalsekar Technical Campus, New Panvel

2. ROLE OF AN ENGINEER
CATERING THE NEED OF THE SOCIETY MAKE HUMAN LIFE COMFORTABLE ECONOMIC DEVELOPMENT…ETC.

3. PROBLEM ENERGY CRISIS INCREASED DECREASED DEMAND POVERTY INFLATION
SUPPLY
INCOME
AVAILABILIT Y

4. SOLUTION ALTERNATE ENERGY SOURCES- IMPROVEMENT IN EXISTING LPG SYSTEM
COSTLY
INFEASIBLE
NOT FRIENDLY WITH ENVIRONMENT
IMPROVEMENT IN EXISTING LPG SYSTEM
OPTIMISE
INCREASE EFFICIENCY

5. THE IDEA
TRAP THE ESCAPING HEAT
(going waste)

6. THE IDEA

7. THE IDEA
SINGLE VESSEL VS MULTIPLE PARALLEL VESSEL/UTENSILS

8. THE IDEA

9. CONSTRUCTIONAL DETAILS
WASTE HEAT RECOVERY IN KITCHEN
CONSTRUCTIONAL DETAILS

10. CONSTRUCTIONAL DETAILS
WASTE HEAT RECOVERY IN KITCHEN
CONSTRUCTIONAL DETAILS
THE STAND / SUPPORT

11. CONSTRUCTIONAL DETAILS

12. CONSTRUCTIONAL DETAILS

13. CONSTRUCTIONAL DETAILS
CYLINDER / INSULATED COVER

14. CONSTRUCTIONAL DETAILS
CYLINDER 2

15. CONSTRUCTIONAL DETAILS
WASTE HEAT RECOVERY IN KITCHEN
CONSTRUCTIONAL DETAILS

16. CONSTRUCTIONAL DETAILS

17. COST OF UNIT

18. EFFICIENCY AND ECONOMY
COST OF UNIT = Rs. 690/-
LIFE OF UNIT 6 YEARS
LPG BILL FOR I YEAR (12 CYLINDERS)
9X450+3X950= = Rs /-
IF 52% ENERGY SAVED (6 CYLINDERS ONLY)
6X450=Rs.2700/-
MONEY EARNED IN ONE YEAR
=4200/-
MONEY EARNED IN 6YEARS = Rs. 25,200/-

19. ‘WASTE HEAT RECOVERY UNIT’
EXPERIMENTAL RESULT
THE EXPERIMENT ADDRESSED THE PROBLEM:
AMONGST VARIOUS ALTERNATIVES AVAILABLE THE MOST FEASIBLE AND CHEAP IS
TO MODIFY THE EXISTING ONE BY USING,
‘WASTE HEAT RECOVERY UNIT’

20. EXPERIMENTAL RESULT Observations
Data collected while heating 2 lit of water(up to 100 degree Celsius):
in3modes, time required.
Normal heating mode for 2lit min 30 sec.
Heating With ‘Waste Heat Recovery unit’ 7 min.40 sec bottom cylinder only (460/510=90% ) 10 % heat trapped)
Heating With ‘Waste Heat Recovery unit’ both cylinders (60 % heat trapped)

21. EXPERIMENTAL RESULT

22. EXPERIMENTAL RESULT

23. EXPERIMENTAL RESULT Sr no Qty Temp Rise Time min Heat Saved 1 2 100 73-- 40 13
17 % 3 50 26 15
31% 4 65 46 20
63%

24. APPLICATIONS SIMULTANEOUS COOKING PREHEATING / THAWING REHEATING
LOW TEMP APPLICATIONS e.g. noodles
KEEPING FOOD HOT
HOT WATER
MILK …

25. APPLICATIONS

26. BENEFITS DERIVED
If we succeed in saving X% of LPG in one kitchen then total domestic LPG consumption will be reduced by X%.
Also it will also help reduce Co2 emission and global warming by X %.

27. ADVANTAGES Waste Heat Recovery unit
IF IMPLEMENTED SUCCESSFULLY, shall result in
Reduction in No. of LPG cylinders/year
Money saving
Low cost
Easy to operate
Low maintenance
Long life
Boosting of Country’s economy
Contribution to environment

28. CONCLUSION WHRUK IS THE NEED OF THE HOUR, IT NOT ONLY SAVES THE MONEY,
TIME,
EFFORTS
BUT
THE VALUABLE RESOURES OF THE COUNTRY, THE ENERGY !!
A MUST FOR EVERY KITCHEN
CONTRIBUTION TO THE ENVIRONMENT

29. THANK YOU