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First Author A.B.C1, Second Author D.E.F1,* and Third Author G.H2

1Department of XXX, Faculty of Technology, Wayamba University of Sri Lanka, Lional Jayathilake Mawatha, Kanadulla, Kuliyapitiya, 60200, Sri Lanka.

2Department, Address with country

* Corresponding Author: E-mail: xxxxxx@xxx.xx

TITLE OF THE EXTENDED ABSTRACT

    • Solar energy is an abundant renewable energy source, which is an alternative to conventional energy sources
    • That solar energy can converted into electricity by using solar panel.
    • Normally efficient of solar panel falls between 10% -20%.
    • Solar panel temperature is critical parameter that affects to the solar panel efficiency
    • When the solar panel temperature increases the efficiency is decreasing
    • That heat can reduce output efficiency by 10%-25%.

Introduction

    • Heat pipes are two-phase heat transfer devices with extremely high effective thermal conductivity that combines the principles of both thermal conductivity and phase transition

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    • There are several types of heat pipes. For our design thermosyphon heat pipe is selected
    • By using single thermosyphon, three experiments were done in order to find suitable working fluid and filling volume, solid material, and thermal characteristic of thermosyphon (i:e:over all heat transfer coefficient)
    • Acetone is working fluid and copper is solid material for the design

Structure of Heat pipe

Methodology

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Experimental set up

    • An array of thermosyphon were fabricated and mounted on the solar panel

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Design

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At Peak Temperature

Existing Normal solar panel

Modified solar panel

Voltage ( V)

15.33

17.36

Efficiency %

9.24

13.43

Temperature 0C

50.3

45.1

    • Solar panel efficiency was reduced from 11% to 9% as temperature of the panel increased from 37 Celsius to 48 Celsius.
    • As a solution, Heat Pipe combined system was designed and fabricated in order to remove the heat.
    • The efficiency of the solar panel is increased up to 13.26% as the result of the heat

Conclusion

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Results

  • New modification can be added such that adding a water condenser at the condenser side of the thermosyphon array
  • water condenser section can be utilized as solar water heater
  • Thermosyphon a copper box can be used instead of the copper tubes. Hence the contact area will be larger and can dissipate more heat
  • Can be selected another solid materials instead of copper to minimize the cost

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Future Works

  • "Coal," World Coal Association, 2019. [Online]. Available: https://www.worldcoal.org/coal/where-coal-found. [Accessed 18 June 2019].
  • "The First Wave Energy Converters for Latin America," LifeAdvancer, 2019. [Online]. Available: https://www.lifeadvancer.com/the-first-wave-energy-converters-for-latin-america/. [Accessed 18 June 2019].

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References

17th July, 2026