scholarly journals Experimental and Analytical Simulation Analyses on the Electrical Performance of Thermoelectric Generator Modules for Direct and Concentrated Quartz-Halogen Heat Harvesting

Energies ◽  
2018 ◽  
Vol 11 (12) ◽  
pp. 3315 ◽  
Author(s):  
Saim Memon ◽  
Khawaja Tahir
Keyword(s):  
Heat Sink ◽  
Short Circuit ◽  
Electrical Power ◽  
Extreme Temperature ◽  
Short Circuit Current ◽  
Open Circuit ◽  
Electrical Performance ◽  
Performance Parameters ◽  
Temperature Conditions ◽  
Analytical Simulation

The scope of thermoelectric generators (TEGs), in improving the electric vehicle battery performance and glass/steel manufacturing industries, could achieve wider significance by harnessing the unused radiative heat and light conversion to electrical power. This paper experimentally investigates the electrical performance correlated to concentrated quartz-halogen, with acrylic Fresnel lens and heat-light harvesting, coupled with heat sink. This study also experimentally examined the influence of extreme temperature variance on the open circuit generated voltage of the Peltier electrical failure mode, compared to the standard performance parameters of the commercial TEG module. The research results presented provide expedient perception into the testing (open circuit voltage, short circuit current, and full load power) of a commercial heat-stove TEG to understand its performance limitations. The analytical simulation and mathematical model developed in MATLAB compared the electrical performance parameters and its dependencies. The analytical simulation shows that increasing the heat-sink temperature increases the efficiency of not more than 2% at the Δ T of 360 K, due to the limitation of the Z T ¯ of 0.43 at Δ T of 390 K. The maximum Z T ¯ of 0.7 for Bi2Te3, with an achievable efficiency of 4.5% at the Seebeck coefficient of 250 µV/K, was predicted. The design of three experimental setups and results presented demonstrate the functioning of TEG in stable and unstable temperature conditions, confirming the theoretical study and stipulating a quantity of the electrical output power in relation to extreme temperature conditions.

scholarly journals Optimized Thin-Film Organic Solar Cell with Enhanced Efficiency

2021 ◽  
Vol 13 (23) ◽  
pp. 13087
Author(s):  
Waqas Farooq ◽  
Muhammad Ali Musarat ◽  
Javed Iqbal ◽  
Syed Asfandyar Ali Kazmi ◽  
Adnan Daud Khan ◽  
...  
Keyword(s):  
Thin Film ◽  
Solar Cell ◽  
Organic Solar Cell ◽  
Short Circuit ◽  
Short Circuit Current ◽  
Short Circuit Current Density ◽  
Open Circuit ◽  
Bragg Reflector ◽  
Performance Parameters ◽  
Distributed Bragg Reflector

Modification of a cell’s architecture can enhance the performance parameters. This paper reports on the numerical modeling of a thin-film organic solar cell (OSC) featuring distributed Bragg reflector (DBR) pairs. The utilization of DBR pairs via the proposed method was found to be beneficial in terms of increasing the performance parameters. The extracted results showed that using DBR pairs helps capture the reflected light back into the active region by improving the photovoltaic parameters as compared to the structure without DBR pairs. Moreover, implementing three DBR pairs resulted in the best enhancement gain of 1.076% in power conversion efficiency. The measured results under a global AM of 1.5G were as follows: open circuit voltage (Voc) = 0.839 V; short circuit current density (Jsc) = 10.98 mA/cm2; fill factor (FF) = 78.39%; efficiency (η) = 11.02%. In addition, a thermal stability analysis of the proposed design was performed and we observed that high temperature resulted in a decrease in η from 11.02 to 10.70%. Our demonstrated design may provide a pathway for the practical application of OSCs.

scholarly journals Synchronous organics removal and copper reduction in semiconductor wastewater with energy recuperation via photocatalytic fuel cell

2020 ◽  
Vol 167 ◽  
pp. 01002
Author(s):  
Sze-Mun Lam ◽  
Man-Kit Choong ◽  
Jin-Chung Sin ◽  
Honghu Zeng
Keyword(s):  
Short Circuit ◽  
Short Circuit Current ◽  
Short Circuit Current Density ◽  
Open Circuit ◽  
Electrical Performance ◽  
Electricity Production ◽  
Catalyst Loading ◽  
Carbon Cloth ◽  
Optimal Test ◽  
Energy Recuperation

An effective PFC constructed from ZnO/Zn photoanode and carbon cloth cathode has been proposed to oxidatively degrade organics and reductively treat Cu (II) in the semiconductor wastewater accompanied with electricity production. The cell electrical performance with open circuit voltage of 835 V, maximum power density of 0.003623 mW cm-2 and short circuit current density of 0.0506 mA cm-2 can be obtained using optimized catalyst loading of 1.0 g L-1 and semiconductor wastewater concentration of 10 mg L-1. Under the optimal test, more photogenerated electrons will be facilitated for charge carrier separation in the photoanode, accelerating the organics degradation on anode, and subsequently the electron migrating to cathode for Cu (II) reduction. A complete mineralization with 10 mg L-1 COD and more than 70% Cu (II) removal efficiency can be attained within 180 min. A good reproducibility test has been also witnessed because of the stable photoanode and cathode materials. This work may pave an effective and sustainable approach to concurrently eliminate two kinds of contaminants with energy recuperation in a single chamber.

scholarly journals Optimization of Method and Components of Enzymatic Fuel Cells

2019 ◽  
pp. 143-146
Author(s):  
Ibukun Akinsola ◽  
Aderemi Babatunde Alabi ◽  
Muibat A Soliu ◽  
Taiye Akomolafe
Keyword(s):  
Fuel Cells ◽  
Open Circuit Voltage ◽  
Short Circuit ◽  
Renewable Energy Sources ◽  
Electrical Power ◽  
Short Circuit Current ◽  
Electrical Energy ◽  
Open Circuit ◽  
Biofuel Cell ◽  
Carbon Electrodes

Enzymatic fuel cells produce electrical power by oxidation of renewable energy sources. An enzymatic glucose biofuel cell uses glucose as fuel and enzymes as biocatalyst, to convert biochemical energy into electrical energy. The applications which need low electrical voltages and low currents have much of the interest in developing enzymatic fuel cells. The cell was constructed using three different materials with different electrodes (Bitter leaf and Copper electrodes (BCu), Bitter leaf and Carbon electrodes (BC) and Water leaf and Carbon electrodes (WC)). The short circuit current and open circuit voltage were measured in micro-ampere (mu A) and milli-volt (mV) respectively at 30 minutes interval over the period of 12 hours (from dawn to dusk). The results which show that fuel cells constructed using bitter leaf with carbon electrode has the highest open circuit voltage, short circuit current and generated power of 162.8~mV, 1.65~ mu A and 268.62~nW respectively at 720~mins is obtained from the plots generated by the use of Microsoft Excel. The results show that all short circuit currents, voltages and powers generated increases with time and this is as a result of the exposure to solar radiation during the period of taking the measurement.

scholarly journals Characteristic comparison of photovoltaic module and photovoltaic thermal

2018 ◽  
Vol 204 ◽  
pp. 04010 ◽  
Author(s):  
Krismadinata ◽  
Remon Lapisa ◽  
Syahril ◽  
Asnil
Keyword(s):  
Short Circuit ◽  
Electrical Power ◽  
Short Circuit Current ◽  
Open Circuit ◽  
Photovoltaic Module ◽  
Heat Absorption ◽  
Electrical Characteristics ◽  
Solar Module ◽  
Circulating Water ◽  
Lower Temperature

This paper discusses an attempt to compares the electrical characteristics of two solar modules of the same type and size in which one of the solar modules at the bottom is mounted a copper pipe for circulating water (as call photovoltaic thermal). The research was steered to observe water cooling effect to electrical characteristics of PV module. This system serves as a heat absorption on the bottom of the solar module. The experiment is conducted at the same time, place, and sunlight intensity conditions for both solar modules. The characteristics of short-circuit current, open circuit voltage, upper and lower temperature and the irradiation of sunlight from the two solar modules are observed. The test results show that photovoltaic thermal generate greater electrical power than solar modules not equipped with heat absorption

Performance Study of GaAs Photovoltaic Power Converter in Optically Powered Systems

2014 ◽  
Vol 556-562 ◽  
pp. 1894-1897
Author(s):  
Xin Wei Yuan ◽  
Jie Qin Shi
Keyword(s):  
Short Circuit ◽  
Electrical Power ◽  
Maximum Output Power ◽  
Optical Power ◽  
Short Circuit Current ◽  
Power Converter ◽  
Open Circuit ◽  
Maximum Output ◽  
Performance Study ◽  
Photovoltaic Power

Optically powered system is a revolutionary new power delivery system, in which optical power is delivered over fiber to photovoltaic power converter, where optical power is transformed into electrical power. Therefore the system is inherently immune to RF, EMI, high voltage and lighting effects. Capable of powering electronic circuitry by optical fiber, this technology has been validated in industries such as electric power, communications, remote sensing and aerospace. To a large extent, photovoltaic power converter is a key component that decides the performance of optically powered system. In this paper, the commonly used GaAs photovoltaic power converter is studied and tested. Parameter values like open circuit voltage, short circuit current, maximum output power, conversion efficiency and the optimum load resistance are obtained through experiment, which can be severed as important reference while choosing or designing DC-DC converter.

scholarly journals AlxIn1−xN on Si (100) Solar Cells (x = 0–0.56) Deposited by RF Sputtering

Materials ◽  
2020 ◽  
Vol 13 (10) ◽  
pp. 2336 ◽  
Author(s):  
Sirona Valdueza-Felip ◽  
Rodrigo Blasco ◽  
Javier Olea ◽  
Alba Díaz-Lobo ◽  
Alejandro F. Braña ◽  
...  
Keyword(s):  
Solar Cells ◽  
Low Cost ◽  
Short Circuit ◽  
Photovoltaic Performance ◽  
Rf Sputtering ◽  
Solar Spectrum ◽  
Short Circuit Current ◽  
Open Circuit ◽  
Electrical Performance ◽  
Al Content

We investigate the photovoltaic performance of solar cells based on n-AlxIn1−xN (x = 0–0.56) on p-Si (100) hetero-junctions deposited by radio frequency sputtering. The AlxIn1−xN layers own an optical bandgap absorption edge tuneable from 1.73 eV to 2.56 eV within the Al content range. This increase of Al content results in more resistive layers (≈10−4–1 Ω·cm) while the residual carrier concentration drops from ~1021 to ~1019 cm−3. As a result, the top n-contact resistance varies from ≈10−1 to 1 MΩ for InN to Al0.56In0.44N-based devices, respectively. Best results are obtained for devices with 28% Al that exhibit a broad external quantum efficiency covering the full solar spectrum with a maximum of 80% at 750 nm, an open-circuit voltage of 0.39 V, a short-circuit current density of 17.1 mA/cm2 and a conversion efficiency of 2.12% under air mass 1.5 global (AM1.5G) illumination (1 sun), rendering them promising for novel low-cost III-nitride on Si photovoltaic devices. For Al contents above 28%, the electrical performance of the structures lessens due to the high top-contact resistivity.

Nanostructure Control of Si and Ge Quantum Dots Based Solar Cells Using Plasma Processes

2014 ◽  
Vol 783-786 ◽  
pp. 2022-2027 ◽  
Author(s):  
Masaharu Shiratani ◽  
Giichiro Uchida ◽  
Hyun Woong Seo ◽  
Daiki Ichida ◽  
Kazunori Koga ◽  
...  
Keyword(s):  
Solar Cells ◽  
Fill Factor ◽  
Open Circuit Voltage ◽  
Short Circuit ◽  
Electrical Power ◽  
Chemical Vapor ◽  
Short Circuit Current ◽  
Open Circuit ◽  
Si Nanoparticles ◽  
Sensitized Solar Cells

We report characteristics of quantum dot (QD) sensitized solar cells using Si nanoparticles and Ge nanoparticles. Si nanoparticles were synthesized by multi-hollow discharge plasma chemical vapor deposition, whereas Ge nanoparticles were done by a radio frequency magnetron sputtering using Ar+H2under high pressure conditions. The electrical power generation from Si QDs and Ge QDs was confirmed. Si QD sensitized solar cells show an efficiency of 0.024%, fill factor of 0.32, short-circuit current of 0.75 mA/cm2and open-circuit voltage of 0.10 V, while Ge QD sensitized solar cells show an efficiency of 0.036%, fill factor of 0.38, short-circuit current of 0.64 mA/cm2and open-circuit voltage of 0.15 V.

Statistical analysis of properties of non-fullerene acceptors for organic photovoltaics

2022 ◽  
Author(s):  
Naoya Yamaguchi ◽  
Hiroaki Sano ◽  
Hikaru Sawahata ◽  
Masahiro Nakano ◽  
Tetsuya TAIMA ◽  
...  
Keyword(s):  
Organic Photovoltaics ◽  
High Performance ◽  
Open Circuit Voltage ◽  
Short Circuit ◽  
Power Conversion ◽  
Short Circuit Current ◽  
Short Circuit Current Density ◽  
Open Circuit ◽  
Performance Parameters ◽  
Chemical Structures

Abstract From ~1500 published journal papers on organic photovoltaics (OPVs), we extracted OPV performance parameters of power conversion efficiency (PCE), open circuit voltage (VOC) and short circuit current density (JSC) and chemical structures of photovoltaic layer materials to investigate the relation between the extracted data of OPVs accompanied by non-fullerene acceptors (NFAs). Our analysis indicated that there was a suitable range of VOC for high PCE or JSC in NFAs. We also investigated the correlation between the performance parameters and chemical structures of small molecule NFAs. Our approach may enable us to provide new design strategy for high performance OPVs.

Multijunction InGaAs Thermophotovoltaic Devices

1997 ◽  
Vol 485 ◽  
Author(s):  
Navid S. Fatemi ◽  
David M. Wilt ◽  
Phillip P. Jenkins ◽  
Victor G. Weizer ◽  
Christopher S. Murray
Keyword(s):  
Fill Factor ◽  
Short Circuit ◽  
Rear Surface ◽  
Short Circuit Current ◽  
Open Circuit ◽  
Electrical Performance ◽  
Back Surface ◽  
Inp Substrate ◽  
In Series ◽  
Performance Results

AbstractA monolithic interconnected module (MIM) structure has been developed for thermophotovoltaic (TPV) applications. The MIM consists of many individual InGaAs cells series-connected on a single semi-insulating (S.I.) InP substrate. An infrared (IR) back surface reflector (BSR), placed on the rear surface of the substrate, returns the unused portion of the TPV radiator output spectrum back to the radiator for recuperation, thereby providing for high system efficiencies. MIMs were fabricated with an active area of 0.9×l cm, and with 15 cells monolithically connected in series. Both lattice-matched and lattice-mismatched InGaAs/InP devices were fabricated, with bandgaps of 0.74 and 0.55 eV, respectively. The 0.74 eV MIMs demonstrated an open-circuit voltage (Voc) of 6.16 V and a fill factor of 74.2% at a short-circuit current (Jsc) of 0.84 A/cm2, under flashlamp testing. The 0.55 eV MIMs demonstrated a Voc of 4.85 V and a fill factor of 57.87percnt; at a Jsc of 3.87 A/cm2 Electrical performance results for these MIMs are presented.

scholarly journals Optimization of Electrical Performance of Defected n+-p-p+ Solar Cell with CdS/BaSi2/Cu2O Heterostructure Using SCAPs 1D

2022 ◽  
Author(s):  
Zohaib Ali ◽  
Khuram Ali
Keyword(s):  
Solar Cell ◽  
Short Circuit ◽  
Short Circuit Current ◽  
Short Circuit Current Density ◽  
Open Circuit ◽  
Electrical Performance ◽  
Maximum Efficiency ◽  
Photovoltaic Devices ◽  
Layer Width ◽  
P Type

Abstract Present study investigates the performance of BaSi2 based BSF structure solar cell. SCAPS 1D simulator has been employed to investigate the heterostructure solar cell. To decrease the recombination loss due to minority carrier, a new configuration is proposed by inclusion of the p-type cuprous oxide (Cu2O) as BSF layer. The Cu2O BSF layer width varying in range 0.1 to 0.4 µm to analyze the feasibility of device for optimum performance. The anticipated structure consists of ZnO/CdS/BaSi2/Cu2O layers and offers the maximum efficiency of above 24%. Parameters for example open circuit voltage (Voc), short-circuit current density (Jsc), fill factor (FF), conversion efficiency (η) and quantum efficiency (QE) of the device have been analyzed graphically. The optimized structure may have significant impact on future development of advanced photovoltaic devices.

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