Demonstration of Infrared-Photovoltaics for a Full-Spectrum Solar Energy System

2005 ◽  
Vol 128 (1) ◽  
pp. 30-33 ◽  
Author(s):  
Dan Dye ◽  
Byard Wood ◽  
Lewis Fraas ◽  
Jeanette Kretschmer
Keyword(s):  
Solar Energy ◽  
Gallium Antimonide ◽  
Solar Spectrum ◽  
Energy System ◽  
Maximum Efficiency ◽  
Infrared Transmission ◽  
Full Spectrum ◽  
Imaging Device ◽  
Pv Array ◽  
Experimental Apparatus

A nonimaging (NI) device and infrared-photovoltaic (IR-PV) array for use in a full-spectrum solar energy system has been designed, built, and tested (Dye et al., 2003, “Optical Design of an Infrared Non-Imaging Device for a Full-Spectrum Solar Energy System,” Proceedings of the ASME International Solar Energy Society Conference; Dye and Wood, 2003, Infrared Transmission Efficiency of Refractive and Reflective Non-Imaging Devices for a Full-Spectrum Solar Energy System,” Nonimaging Optics: Maximum Efficiency Light Transfer VII, Proc. SPIE, 5185; Fraas et al., 2001, Infrared Photovoltaics for Combined Solar Lighting and Electricity for Buildings,” Proceedings of 17th European Photovoltaic Solar Energy Conference}. This system was designed to utilize the otherwise wasted infrared (IR) energy that is separated from the visible portion of the solar spectrum before the visible light is harvested. The IR energy will be converted to electricity via a gallium antimonide (GaSb) IR-PV array. The experimental apparatus for the testing of the IR optics and IR-PV performance is described. Array performance data will be presented, along with a comparison between outdoor experimental tests and laboratory flash tests. An analysis of the flow of the infrared energy through the collection system will be presented, and recommendations will be made for improvements. The IR-PV array generated a maximum of 26.7W, demonstrating a conversion efficiency of the IR energy of 12%.

Demonstration of Thermophotovoltaics for a Full-Spectrum Solar Energy System

Solar Energy ◽  
2004 ◽  
Author(s):  
Dan Dye ◽  
Byard Wood ◽  
Lewis Fraas ◽  
Jeanette Kretschmer
Keyword(s):  
Solar Energy ◽  
Visible Light ◽  
Gallium Antimonide ◽  
Solar Spectrum ◽  
Experimental Tests ◽  
Energy System ◽  
Collection System ◽  
Full Spectrum ◽  
Experimental Apparatus ◽  
Array Performance

A non-imaging (NI) device and thermophotovoltaic (TPV) array for use in a full-spectrum solar energy system has been designed, built, and tested [1,2,3]. This system was designed to utilize the otherwise wasted infrared (IR) energy that is separated from the visible portion of the solar spectrum before the visible light is harvested. The IR energy will be converted to electricity via a gallium antimonide (GaSb) TPV array. The experimental apparatus for the testing of the IR optics and TPV performance is described. Array performance data will be presented, along with a comparison between outdoor experimental tests and laboratory flash tests. An analysis of the flow of the infrared energy through the collection system will be presented, and recommendations will be made for improvements. The TPV array generated a maximum of 26.7 W, demonstrating a conversion efficiency of the IR energy of 12%.

Optical Design of an Infrared Non-Imaging Device for a Full-Spectrum Solar Energy System

Solar Energy ◽  
2003 ◽  
Author(s):  
Dan Dye ◽  
Byard Wood ◽  
Lewis Fraas ◽  
Jeff Muhs
Keyword(s):  
Solar Energy ◽  
National Laboratory ◽  
Optical Design ◽  
Electrical Power ◽  
Solar Spectrum ◽  
Energy System ◽  
Full Spectrum ◽  
Imaging Device ◽  
Oak Ridge ◽  
Receiver System

A solar collector/receiver system for a full-spectrum solar energy system is being designed by a research team lead by Oak Ridge National Laboratory and the University of Nevada, Reno. [1,2] This solar energy system is unique in that it utilizes the majority of the solar spectrum by splitting the infrared (IR) and visible energy for two different end uses. The visible light will be used for day lighting and the IR energy for electrical power generation. This paper is concerned with the optics that will provide uniform irradiance of the IR energy on the thermal photovoltaic (TPV) array. The benchmark full-spectrum collector/receiver and prototype TPV array have been built [3], so the work performed here is to match the two systems together for optimal performance. The design consists of a non-imaging (NI) system for the IR flux incident on the TPV array mounted behind the secondary mirror. Results of the ray-tracing analysis of the different systems tested are presented.

Optical Design of an Infrared Non-Imaging Device for a Full-Spectrum Solar Energy System

2004 ◽  
Vol 126 (1) ◽  
pp. 676-679 ◽  
Author(s):  
Dan Dye ◽  
Byard Wood ◽  
Lewis Fraas ◽  
Jeff Muhs
Keyword(s):  
Solar Energy ◽  
Research Team ◽  
National Laboratory ◽  
Optical Design ◽  
Energy System ◽  
Full Spectrum ◽  
Imaging Device ◽  
Oak Ridge ◽  
Secondary Mirror ◽  
The University

A full-spectrum solar energy system is being designed by a research team lead by Oak Ridge National Laboratory and the University of Nevada, Reno. [1,2] The benchmark collector/receiver and prototype thermophotovoltaic (TPV) array have been built [3], so the work performed here is to match the two systems together for optimal performance. It is shown that a hollow, rectangular-shaped non-imaging (NI) device only 23 cm long can effectively distribute the IR flux incident on the TPV array mounted behind the secondary mirror. Results of the ray-tracing analysis of the different systems tested are presented.

scholarly journals Design and Simulation of a DC Stabilization System for Solar Energy System

2019 ◽  
Vol 35 (2) ◽  
Author(s):  
Pham Thi Viet Huong ◽  
Mac Khuong Duy ◽  
Tran Anh Vu ◽  
Dang Anh Viet ◽  
Minh - Trien Pham
Keyword(s):  
Solar Energy ◽  
Output Voltage ◽  
Clean Energy ◽  
Energy System ◽  
Maximum Power ◽  
Maximum Efficiency ◽  
Solar Panels ◽  
Maximum Power Point ◽  
Point Tracking ◽  
Power Point

During the last few years, the demand for solar photovoltaic (PV) energy has grown remarkably since it provides electricity from an exhaustible and clean energy source. The generated power of solar panels depends on environment conditions, which changes continuously due to many factors, for example, the radiation, the characteristics of the load, etc. In order for the solar energy system operates at its most efficiency, it needs to work at its maximum power point (MPP). Previous literature has dealt with either investigating Maximum Power Point Tracking (MPPT) algorithms or tracking a steady output voltage from solar panels. However, when the load is changed, the new MPP need to be defined. In this paper, a novel adaptive MPPT system was proposed to investigate the MPP and keep tracking MPP at the same time. The proposed system was implemented in Proteus simulation. As the results, when the load is changing, the system obtained a steady and reliable desired output voltage. It is not only able to obtain a reliable steady DC output voltage but also keep the solar energy system work at its maximum efficiency.

Design a Optimum MPPT Controller for Solar Energy System

2016 ◽  
Vol 2 (3) ◽  
pp. 545 ◽  
Author(s):  
F. R. Islam ◽  
K. Prakash ◽  
K. A. Mamun ◽  
A. Lallu ◽  
R. Mudliar
Keyword(s):  
Solar Energy ◽  
Photovoltaic Cell ◽  
Energy System ◽  
Maximum Power ◽  
Maximum Efficiency ◽  
Maximum Power Point ◽  
Good Efficiency ◽  
Point Tracking ◽  
Power Point Tracking ◽  
Power Point

<p>Solar energy is compared to be the best potential source of renewable energy in Pacific region. For this reason a photovoltaic cell is needed to harvest this kind of energy, gathering the most of it and the PV having a good efficiency.  The maximum efficiency is achieved when the PV works at its Maximum Power Point which entirely depends on the irradiation and temperature. This paper proposes a new design of hybrid Maximum Power Point Tracking and a comparative study is made with various existing MPPT techniques which include Perturb and Observe method, Incremental Conductance and Fuzzy Logic. From the comprehensive comparison study between existing MPPT technique and the proposed MPPT technique/theory, a hardware setup was demonstrated to verify the proposed design by charge controller in photovoltaic systems to which maximize the output power under various lighting conditions. The design is based on the computed results using the buck-boost DC-DC conveter. From the simulation, the proposed method tends to show better performance with almost no oscillations around the MPP.</p>

Improvement of Solar Energy System Under Partial Shading Conditions in Koneru Lakshmaiah Education Foundation

2018 ◽  
Vol 7 (1.8) ◽  
pp. 197
Author(s):  
B Bhargavi ◽  
P Linga Reddy
Keyword(s):  
Solar Energy ◽  
Harmonic Distortion ◽  
Energy System ◽  
Total Harmonic Distortion ◽  
Solar Photovoltaic ◽  
Pv System ◽  
Partial Shading ◽  
Pv Array ◽  
Pv Module ◽  
Lc Filter

This paper consists of grid connected Solar photovoltaic (SPV) system. An output of SPV depends on the irradiation and temperature. Sometimes PV module is shaded due to nearby buildings, passing clouds etc. Power extracted from such partially shaded PV array is reduced. . The PV system at KLEF deemed to be university is considered. Total Harmonic Distortion (THD) and the output powers  are  computed using Matlab/Simulink using LC filter .These are compared with the actual values measured from the existing system . It is found that percentage of THD is reduced.  

Full Spectrum Collection of Concentrated Solar Energy Using PV Coupled with Selective Filtration Utilizing Nanoparticles

MRS Advances ◽  
2016 ◽  
Vol 1 (43) ◽  
pp. 2935-2940 ◽  
Author(s):  
Todd Otanicar ◽  
Drew DeJarnette ◽  
Nick Brekke ◽  
Ebrima Tunkara ◽  
Ken Roberts ◽  
...  
Keyword(s):  
High Temperature ◽  
Solar Energy ◽  
Solar Spectrum ◽  
Organic Rankine Cycle ◽  
Industrial Process ◽  
Rankine Cycle ◽  
Total System ◽  
Full Spectrum ◽  
Concentrated Solar Energy ◽  
Pass Through

ABSTRACTHybrid solar receivers utilizing both photovoltaic cells and thermal collectors are capable of collecting the entire solar spectrum for use in energy systems. Such systems provide efficient solar energy conversion using PV in addition to dispatchability through thermal storage by incorporating a thermal collector in conjunction with the PV. Proposed hybrid systems typically invoke spectrum splitting so to redirect photons optimized for PV electric conversion to a cell while non-PV efficient photons are directed to a thermal absorber. This work discusses a hybrid system with a selective solar filter using a suspended nanoparticle fluid to directly absorb non-PV photons. Non-absorbed photons pass through the filter and impact the PV. Choice of nanoparticles in the fluid allow absorption and transmission of specific wavelengths. Nanoparticles were chosen based on optimization simulations for a bandpass filter to a cSi solar cell. The synthesized fluid has been experimentally characterized to show the effects of high temperature on nanoparticle stability and optical properties. Thermodynamic modeling of the system suggests solar to electric efficiency of the total system is 23.2% if all thermal energy is converted to electricity through an organic Rankine cycle (ORC). However, high temperature generation could be used for industrial process heat at a specific temperature by changing parameters such as absorbed energy and flow rates. Furthermore, a prototype is being developed with 14x concentration to demonstrate the technology on-sun with initial testing targeted for the 2nd quarter of 2016. Overall, the hybrid nanoparticle filter concentrating solar collector can be modified to fit a variety of applications through easily changeable parameters in the system.

Mussel-inspired photothermal synergetic system for clean water production using full-spectrum solar energy

2021 ◽  
pp. 129099
Author(s):  
Ruofei Zhu ◽  
Mingming Liu ◽  
Yuanyuan Hou ◽  
Dan Wang ◽  
Liping Zhang ◽  
...  
Keyword(s):  
Solar Energy ◽  
Clean Water ◽  
Water Production ◽  
Full Spectrum ◽  
Synergetic System
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