SOLAR AIR HEATER
GUIDE: MEMBERS:
Mr. Varun Pratap Singh Riya
(Asst. Prof. ME Dept.)
FINAL YEAR PROJECT
Content
 Introduction
 Literature Review
 Gap Finding
 Objective Function
 Parameter and range selection
 Reference Setup CAD Design
 Prototype making
 Real scale setup construction/fabrication and installation
 Component of setup
 Constructed Setup
 Testing and Equipment
Introduction
 Solar
 Scope India and World
 Type
 Solar Air Heater
 Artificial Roughness
 Shapes
Literature Review
 Solar air heater from the major component of solar
energy utilization system which absorbs the incoming
solar radiations , converting it into thermal energy at
the absorbing surface , in transferring the energy to a
fluid flowing collector. The efficiency of flat plate solar
air heater has been found to be low convective heat
transfer coefficient between the absorber plate and the
flowing air which increases the absorber plate
temperature , leading to high heat losses to the
environment resulting in low thermal efficiency of such
collectors.
 Artificial roughness in the form of repeated ribs the
most effective and economic way of improving the
thermal performance of solar air heater.
Gap Finding
 From the Literature review we conclude that the Multi
V ribs with gap gave highest enhancement in nusselt
number , however there was a very high enhancement
in friction factor also.
 All the research work is done on Single pass SAH so we
worked upon the Double pass SAH.
 From Literature review we also conclude that by
providing turbulence ( Ribs ) the SAH is more efficient
than Flat plate SAH.
Objective Function
 The major objective of this work is to find out the ways
to improve effectiveness of SAH by integration of
Artificial Roughness Solar Air Heater By Using Perforated
Multi V Ribs with Double Pass Parallel Flow.
 The second objective is to come out with new shape
and geometry to enhance effectiveness of SAH and
compare it with other existing geometries and find out
gaps and limitations of that shape.
Selection of Parameters and
its ranges
 Equations Used are DITTUS BOELTER and MODIFIED
BLASSIUS EQUATION.
 Parameters Used are Raynolds Number , Nusselt
number , Friction factor and we have to find out
variation in between these parameters with respect to
other by plotting graphs.
PARAMETERS
SOME SHAPES
Re V/s Nu
Re V/s F
Reference Setup CAD Design
Reference Setup CAD Design
REFERENCE SETUP ISOMETRIC
VIEW
DIFFERENT VIEWS OF SETUP
CONSTRUCTED SETUP
Components of Setup
 Glass Plate
 Wooden Box
 Blower
 Halogen Lamp Setup
 Plates
Testing and Measurement
Equipment's
 Anemometer
 Lux Meter
 Digital Thermometer
 Tilted U tube Manometer
 Mercury Manometer
RESULTS / FINAL
CONCLUSION
Solar group 16

Solar group 16

  • 1.
    SOLAR AIR HEATER GUIDE:MEMBERS: Mr. Varun Pratap Singh Riya (Asst. Prof. ME Dept.) FINAL YEAR PROJECT
  • 2.
    Content  Introduction  LiteratureReview  Gap Finding  Objective Function  Parameter and range selection  Reference Setup CAD Design  Prototype making  Real scale setup construction/fabrication and installation  Component of setup  Constructed Setup  Testing and Equipment
  • 3.
    Introduction  Solar  ScopeIndia and World  Type  Solar Air Heater  Artificial Roughness  Shapes
  • 4.
    Literature Review  Solarair heater from the major component of solar energy utilization system which absorbs the incoming solar radiations , converting it into thermal energy at the absorbing surface , in transferring the energy to a fluid flowing collector. The efficiency of flat plate solar air heater has been found to be low convective heat transfer coefficient between the absorber plate and the flowing air which increases the absorber plate temperature , leading to high heat losses to the environment resulting in low thermal efficiency of such collectors.  Artificial roughness in the form of repeated ribs the most effective and economic way of improving the thermal performance of solar air heater.
  • 5.
    Gap Finding  Fromthe Literature review we conclude that the Multi V ribs with gap gave highest enhancement in nusselt number , however there was a very high enhancement in friction factor also.  All the research work is done on Single pass SAH so we worked upon the Double pass SAH.  From Literature review we also conclude that by providing turbulence ( Ribs ) the SAH is more efficient than Flat plate SAH.
  • 6.
    Objective Function  Themajor objective of this work is to find out the ways to improve effectiveness of SAH by integration of Artificial Roughness Solar Air Heater By Using Perforated Multi V Ribs with Double Pass Parallel Flow.  The second objective is to come out with new shape and geometry to enhance effectiveness of SAH and compare it with other existing geometries and find out gaps and limitations of that shape.
  • 7.
    Selection of Parametersand its ranges  Equations Used are DITTUS BOELTER and MODIFIED BLASSIUS EQUATION.  Parameters Used are Raynolds Number , Nusselt number , Friction factor and we have to find out variation in between these parameters with respect to other by plotting graphs.
  • 8.
  • 9.
  • 10.
  • 11.
  • 12.
    Reference Setup CADDesign Reference Setup CAD Design
  • 13.
  • 14.
  • 15.
  • 16.
    Components of Setup Glass Plate  Wooden Box  Blower  Halogen Lamp Setup  Plates
  • 17.
    Testing and Measurement Equipment's Anemometer  Lux Meter  Digital Thermometer  Tilted U tube Manometer  Mercury Manometer
  • 18.