BYMR.VINAY P. SHENDE

 M.Tech. (EMS) 4th SemesterUnder the Guidance of

Prof. R.E. THOMBRE Deptt. Of Mechanical Engineering

R.C.E.R.T. Chandrapur.

AAFIRST PRESENTATIONFIRST PRESENTATION

ONON

PERFORMANCE EVALUATION OF PERFORMANCE EVALUATION OF FUNNEL TYPE SOLAR COOKERFUNNEL TYPE SOLAR COOKER

RASHTRASANT TUKADOJI MAHARAJ NAGPUR UNIVERSITYRASHTRASANT TUKADOJI MAHARAJ NAGPUR UNIVERSITY

NAGPUR – 2010-11 NAGPUR – 2010-11

INTRODUCTION• Fire wood is used in almost all rural area around the world. This leads to 

consequence such as1.  Loss of forest area2.  Loss of fertile soil caused by erosion3.  Desertification4.  Increase of poverty and conflict5.  Smoke exposure.

• Solar cookers are an important contribution towards halting  the deforestation process and  preserve the environment.1)  It helps in fighting poverty.2)  There is no CO2 emission which is the main agent       responsible for climate change.3)  The population becomes less dependent on charcoal.4)  Families spend lot of less money.5)  There is pay back on the investment after only few month of       using Solar Cooker.6)  Cooking with Solar Cooker is hygienic.

LITERATURE SURVEYLITERATURE SURVEYA.V. Narasimha Rao, S.Subramanyam

[1]  has discussed the role of vessel inside the 

cooker.

  Based on result, conclusion are ;

1) Putting the vessel on lugs make the bottom of vessel to 

improve the heat transfer.

2) Reduction in cooking time is possible.

3) Improve cooker performance without involving much extra 

cost. 

arig A. Al-Azab, M.Q. Al-odat, F.M Al-

Hussien

has performed the experimental investigation of box

type solar cooker with finned pot and unfinned pot.

The experimental result show that ;

) Cooker temperature can be increased by

using finned cooking pot.

) Cooker efficiency can reach 45% for finned cooking

pot and 40% for Unfinned pot.

. Lertsatitthanakorn

has performed the experimental determination

of energy efficiency of Conical Solar Cooker.

The experimental result show that ;

) Sensible efficiency is about 20%

) The maximum temperature obtained in the

pot containing 2 lit of water is 920C.

.V.S. Murty & Preeti Kanthed

as study the thermal performance of a Solar Cooker having

hase change material as transparent insulation.

he experimental study shows that ;

) PCM is observed to posses a good transmittance and insulation property and hence they are useful during charging and discharging process.

) During charging process, as the PCM material melts, it allow’s the solar radiation into the cooker.

) During discharging as it solidifies, the thickness of insulating medium increases with time and the rate of heat loss from the system also decreases and hence the heat energy retains for a longer time inside the PCM Solar Cooker.

. Gayapershad, S.T. Dladla and M.J. Brooks

as conduct performance evaluation test on

unstove unit and Ishisa box unit with tracked &

ntracked condition.

esult show that ;•

unstove unit reached the maximum temperature of 570C and 550C for tracked and untracked condition respectively.

•shisa box unit reached maximum temp. of 720C and 61 0C for tracked and untracked condition respectively.

) Tracking improve performance resulting in highest final temp. and cooking power.

PROCEDURE OF FABRICATION

• Outer box of cooker  fabricated by plywood.

• Inner box  constructed from aluminum sheet.

PUTTING BOXES TOGETHER AND INSULATION

REFLECTORS & FINAL SETUP

REFLECTOR FINAL SETUP

• GLUING ALUMINUM FOIL TO REFLECTOR.

• PUTTING COOKING VESSEL INSIDE THE COOKER.

• COVERING TOP OF COOKER WITH TRANSPARENT TEFLON SHEET.

FRABRICATION OF COOKERMaterials Required For Fabrication

2.    12mm Plywood

3. 18” x 7” with four pieces.

4. 18” x 18” of one piece.

5. 24 gauge aluminum sheet of size 16”x 16” x 6”.

6. Reflectors.

7. Thermocol for insulation.

8. Cooking vessel of dia. 12.5cm & 13.5cm height.

9. Black Paint.

10.Teflon Sheet.

11.Six nos. of Thermocouple.

12.Temperature Indicator. 

EXPERIMENTATION

• CALIBRATION OF THERMOCOUPLES.

• PUTTING THERMOCOUPLES AT DIFFERENT PLACES.

   - T1  Ambient Temp.

   - T2  Plastic sheet temp.

   - T3  Absorber plate temp.

   - T4  Vessel temp.

   - T5  Vessel content temp.

   - T6  Reflector temp.

PERFORMANCE TESTING PARAMETER

1) Climatic Parameter  –  Solar radiation 

–  Ambient temperature 

–  Wind speed, etc

2) Design parameters        • Properties of black paint used.

• Reflectors at different angles.

• Number of glazing 

• Insulation properties

• Effectiveness of reflector – Booster system.

 

3) Operational parameter - Amount and type of food kept for cooking - Numbers of cooking vessel used

The testing of cookers by three test. Stagnation test

Water heating test Cooking test

COOKING POWER AND EFFICIENCY CALCULATION

• Cooking Power 

The sensible cooking power is expressed as.

                                Mw.Cw.dTw +Mv.Cv.dTv

               Q h = ------------------------------------

                                             dtWhere:

          Qh  = Sensible cooking power 

          Mw = mass of water in kg

          Mv = mass of vessel in kg

          Cw = specific heat capacity of water in J/kg K

          Cv = Specific heat capacity of vessel in J/ kg K

         dTw = Temperature change of water in K

         dTv = Temperature change of vessel in K

          dt = Duration of measurement in second .

Sensible efficiency

• The average sensible efficiency of cooker is determined as the sensible energy used in heating divided by the incident solar flux on the aperture area of the cooker.

 

                          Qh      

             h    =            ------------------------------------

    Aq . IH  (average)

 

Where 

                h =          Cooker efficiency. 

               Aa =           Aperture area.

               IH (average) =          Average solar insulation during Period . 

 

 

 

RESEARCH COMPONENTRESEARCH COMPONENT

The proposed work deals with the ;

3) Testing of performance evaluation of funnel type Solar Cooker with different reflector angles.

2) Comparative study of the performance of proposed work with existing system.

3)Cooking time for different food product will be compared

4) Time required to heat a known amount of water will be compared.

1)  A.V. Narasimha Rao a,*,1, S. Subramanyam “Solar cookers––part I: cooking  vessel on lugs” Solar Energy 75 (2003)      181–185, 2)  Tariq A. Al-Azaba,  M. Q. Al-Odatb* and F. M. Al-Hussi, “Experimental Investigation  of a Box-Type Solar Cooker         with Finned Pot Thermal Performance in Jordan” GCREEDER 2009, Amman Jordan, March  31st  April 2nd 2009,   3)  C. Lertsatitthanakorn “Experimental determination of energy efficiency of conical  solar cooker. 4)  R. Gayapershad, S.T. Dladla and M.J. Brooks “Preliminary Result from performance evaluation study of commercial      solar cooker”. 5)  H. Hüseyin , “Evaluation of efficiency for solar cooker using energy and exergy  analyses.”                                                                                                  6)  V.V.S. Murty & Preeti Kanthed, “Thermal performance of a solar cooker having phase change material as transparent 

     insulation.”7)  Subhash Y. Kamdi,  R.E. Thombre,  Subroto Dutt,  “Energy Evaluation of Paraboloid  Dish Collector - A Knowledge      Based Approach”,  All India Seminar with  International Participation on Non Conventional Energy Sources and       Urban Rural Economy in Developing Countries, Co-Gen, 2008, 9-10 Feb. 2008, Nagpur India. 8)   Subhash Y. Kamdi,  R.E. Thombre,  Subroto Dutt,  “A Mathematical Approach for  Paraboloid Dish Collector        Designing.”9)   C Z M Kimambo, Department of Energy, University of Dar es Salaam, “Development and  performance testing of        solar cookers”, Journal of Energy in South Africa Vol.18 No.3, August- 200710)  Kathy Dahl-Bredine6, “Windshield shade solar funnel cooker” April 2006. 11)  Herliyami Suharta,  Dieter Seifert,  AAM Sayigh, “Clean Development Mechanism (CDM) Solar  Cooker Project        ACEH1, Indonesia.”12)  Heinz Vetter “Solar Cooker Project of ADES.” 13)  H. P. Garg and J. Prakash , Solar Energy, p-166-17, Tata McGro-Hill. 

 

REFERENCESREFERENCES