Abstract
The characterization of a spectrum splitter of both hot and cold mirror, type TechSpec AOI 50.0, using a 50-Watt halogen bulb light has been done. Both the bulb spectrum, prior to and after spectrum splitting, are described in this study to see the degradation of radiation that occurs because partial energy is absorbed by the splitter. This characterization plays an important role in determining the best position of a photovoltaic (PV) and thermoelectric generator (TEG) in a PV-TEG system. The light spectrum was recorded using mini USB spectrometer hardware and Spectragryph version 1.2.8 software as optical spectroscopic software that displays light records coming with wavelength (nm) on the x-axis and light spectrum intensity in arbitrary units (a.u.) on the y-axis. The measurement results show that the light intensity in the visible light region (300–750) nm is more dominant than the intensity in infrared light (>750 nm), so that the PV placement is preferred over TEG. Furthermore, with a cold mirror, PV is more suitable if placed in a position to receive reflected light, while using a hot mirror is more suitable in the position transmitted light. For TEG, it is placed in a position opposite to PV. As a result, the maximum intensity of the PV light spectrum with cold mirrors is 46.52 a.u at a wavelength of 479.6 nm, while with hot mirrors it is 42.07 a.u with a 457.6 nm wavelength. It can be concluded that the value of the light intensity with a cold mirror is better than that with a hot mirror on the visible light (Vis) spectrum, and the current and voltage are equivalent to the results of the radiation energy area. It was proven that the maximum total output of a hybrid PV-TEG system with Cold Mirror is greater than that with Hot Mirror (100.53 > 68.77) × 10−3 µW. Based on the result of this study, it is recommended that further research can be conducted to increase radiation energy and output power in TEG.
Highlights
Solar cells are technological products that can convert solar energy into electrical energy
Light Spectrum of a Halogen Bulb Through Fresnel Lens there was lost about 13% of the spectrum of light radiation not absorbed by FL and was transmitted to In Figure the halogen light because spectrums that most of themof are athalogen wavelengths between the mirror
The light spectrum that passed through were perpendicular to the FL, or it could be the quality of the lens material that needed to be replaced the Fresnel lens was lower in intensity before, except that at the wavelength of 340–486.67 from to acrylic material
Summary
Solar cells are technological products that can convert solar energy into electrical energy. Solar energy that can be used for solar cells is the energy of photons in the spectrum with a range of wavelengths of 400–760 nm or in the category of visible light [1]. Energies 2019, 12, 353 sunlight spectrum based on wavelength has been carefully observed by Hamdy and Osborn [4], who categorize visible light in the range 400–800 nm with an electron volt value between 1.5 and 3.1 eV and infrared light in the range greater than 800 nm. Infrared light with a wavelength >760 nm that can be changed into thermal energy is more suitable for the needs of a thermoelectric generator (TEG) [1,5,6], which is a device for converting thermal energy into electrical energy. The mode of operation of this TEG module is that the heat on one side of the module will cause a temperature difference on both sides of the module so as to generate electricity voltage, which is known as the Seebeck effect
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