scholarly journals PREDICTIVE MODELING OF MIXED HALIDE PEROVSKITE CELL USING HYBRID L27 OA TAGUCHI-BASED GA-MLR-GA APPROACH

2021 ◽  
Vol 84 (1) ◽  
pp. 1-9
Author(s):  
Khairil Ezwan Kaharudin ◽  
Fauziyah Salehuddin
Keyword(s):  
Predictive Modeling ◽  
High Efficiency ◽  
Cell Model ◽  
Photovoltaic Cell ◽  
Donor Density ◽  
Overall Performance ◽  
Grey Relational ◽  
Cell Capacitance ◽  
Alternative Configuration ◽  
Perovskite Photovoltaic

Perovskite photovoltaic cell is regarded as an alternative configuration for the conventional photovoltaic cells predominantly due to its high efficiency. In this paper, a predictive modeling using a hybrid L27 orthogonal array (OA) Taguchi-based Grey relational analysis (GRA), multiple linear regression (MLR) and genetic algorithm (GA) was proposed to optimize the device parameters for better overall performance. The Perovskite photovoltaic cell model is initially constructed and simulated using solar cell capacitance simulator (SCAPS). The final results reveal that the proposed hybrid L27 OA Taguchi-based GRA-MLR-GA approach has effectively optimized the device parameters in which SnO2:F thickness, SnO2:F donor density, ZnO thickness, ZnO donor density, CH3NH3PbI3-xClx thickness, CH3NH3PbI3-xClx donor density, Spiro-OMeTAD thickness and Spiro-OMeTAD acceptor density are predictively tuned at 0.198 μm, 8.973 x 1018 cm-3, 0.039 μm, 8.827 x 1017 cm-3, 0.386 μm, 1.929 x 1013 cm-3, 0.233 μm and 8.984 x 1018 cm-3 respectively. After the predictive modeling, both FF and PCE of the perovskite photovoltaic cell have been improved for ~5.93% and ~5.78% respectively.

Optimize the Study of the Dynamic Film Selection

2013 ◽  
Vol 320 ◽  
pp. 768-773
Author(s):  
Tien Kuei Yu
Keyword(s):  
Computer Animation ◽  
High Efficiency ◽  
Consumer Preferences ◽  
Low Cost ◽  
The United States ◽  
Short Film ◽  
Film Properties ◽  
Animation Industry ◽  
Video Library ◽  
Grey Relational

A technical computer animation for dynamic film, animated short film production to Taiwan by customers to move to the development of the continent, a shrinking market worries. Visible the Taiwan in animation foundry (low-cost, high-quality, high-efficiency) industry, no longer is an advantage. The other hand, the industry has also been realized to cartoons of the United States and Japan and therefore positive efforts (toward the direction of home-made animation Fanmei Jun, 2004). Secondly, the computer animation at this stage of the development of animation industry in Taiwan is the weakest that is, the ability of the financial, legal, and international marketing. Due to the creation of the marketing practices of the finished product is difficult to both creators oriented (Hongfeng Yi, 2004). The research basis the Tsou-Hsiang Ju (2008) using conjoint analysis, analysis of four different preference cluster analysis, five kinds of film properties and their rights, grey relational analysis of dynamic video library field to be named; understand the Hall field the eyes of the average consumer selection situation, it is recommended to design products to meet consumer preferences, and to continue to innovate and reform, driven by the digital content industry to flourish in the international market and to keep pace with foreign manufacturers.

Experimental Performance of a Trochoidal Propeller with High-Aspect-Ratio Blades

1989 ◽  
Vol 26 (03) ◽  
pp. 192-201 ◽  
Author(s):  
Neil Bose ◽  
Peter S. K. Lai
Keyword(s):  
Aspect Ratio ◽  
High Efficiency ◽  
Open Water ◽  
Finite Amplitude ◽  
Dynamic Stall ◽  
Frictional Drag ◽  
Overall Performance ◽  
Small Ship ◽  
Propeller Performance ◽  
Thrust And Torque

Open-water experiments were done on a model of a cycloidal-type propeller with a trochoidal blade motion. This propeller had three blades with an aspect ratio of 10. These experiments included the measurement of thrust and torque of the propeller over a range of advance ratios. Tests were done for forward and reverse operation, and at zero speed (the bollard pull condition). Results from these tests are presented and compared with: a multiple stream-tube theoretical prediction of the performance of the propeller; and a prediction of the performance of a single blade of the propeller, oscillating in heave and pitch, using unsteady small-amplitude hydrofoil theory with corrections for finite amplitude motion, finite span, and frictional drag. At present, neither of these theories gives a completely accurate prediction of propeller performance over the whole range of advance ratios, but a combination of these approaches, with an allowance for dynamic stall of the blades, should lead to a reliable simple theory for overall performance prediction. Application of a propeller of this type to a small ship is discussed. The aim of the design is to produce a lightly loaded propeller with a high efficiency of propulsion.

High-efficiency perovskite photovoltaic modules achieved via cesium doping

2021 ◽  
pp. 133713
Author(s):  
Xuehui Liu ◽  
Min Chen ◽  
Yi Zhang ◽  
Jianxing Xia ◽  
Junze Yin ◽  
...  
Keyword(s):  
High Efficiency ◽  
Photovoltaic Modules ◽  
Perovskite Photovoltaic

scholarly journals Development of the PGT 25 High Efficiency Gas Turbine: Part 2 — Aerodynamic Design and Performance

1984 ◽  
Author(s):  
E. Benvenuti ◽  
B. Innocenti ◽  
R. Modi
Keyword(s):  
Gas Turbine ◽  
High Efficiency ◽  
Performance Testing ◽  
Operating Conditions ◽  
Aerodynamic Design ◽  
Direct Drive ◽  
Gas Generator ◽  
Full Load ◽  
Wide Range ◽  
Overall Performance

This paper outlines parameter selection criteria and major procedures used in the PGT 25 gas turbine power spool aerodynamic design; significant results of the shop full-load tests are also illustrated with reference to both overall performance and internal flow-field measurements. A major aero-design objective was established as that of achieving the highest overall performance levels possible with the matching to latest generation aero-derivative gas generators; therefore, high efficiencies were set as a target both for the design point and for a wide range of operating conditions, to optimize the turbine’s uses in mechanical drive applications. Furthermore, the design was developed to reach the performance targets in conjunction with the availability of a nominal shaft speed optimized for the direct drive of pipeline booster centrifugal compressors. The results of the full-load performance testing of the first unit, equipped with a General Electric LM 2500/30 gas generator, showed full attainment of the design objectives; a maximum overall thermal efficiency exceeding 37% at nominal rating and a wide operating flexibility with regard to both efficiency and power were demonstrated.

scholarly journals Understanding Photovoltaic Cell Dynamic Resistance Behavior with Changing Incident Light Intensity - draftv1.pdf

2019 ◽  
Author(s):  
FRANCISCO J. GARCIA-SANCHEZ
Keyword(s):  
Equivalent Circuit ◽  
Cell Model ◽  
Short Circuit ◽  
Incident Light ◽  
Photovoltaic Cell ◽  
Open Circuit ◽  
Photovoltaic Device ◽  
Dynamic Resistance ◽  
Analytic Expressions ◽  
Static Conditions

A theoretical examination of the general behavior that should be expected to be displayed by the magnitude of the dynamic resistance of a conventional illuminated photovoltaic device within the power-generating quadrant of its <i>I-V</i> characteristics, when measured in quasi-static conditions from the short-circuit point to the open-circuit point, at various incident illumination intensities. The analysis is based on assuming that the photovoltaic device in question may be adequately described by a simple conventional d-c lumped-element single-diode equivalent circuit solar cell model, which includes significant constant series and shunt resistive losses, but lacks any other secondary effects. Using explicit analytic expressions for the dynamic resistance, we elucidate how its magnitude changes as a function of the terminal variables, the incident illumination intensity and the model’s equivalent circuit elements’ parameters.

Implementation of digital temperature control system on photovoltaic cell model: An experimental analysis

Optik ◽  
2019 ◽  
Vol 176 ◽  
pp. 324-333 ◽  
Author(s):  
Asita Samal ◽  
A. Mohanty ◽  
P.K. Ray ◽  
S. Mohanty ◽  
P.P. Mohanty
Keyword(s):  
Control System ◽  
Temperature Control ◽  
Experimental Analysis ◽  
Cell Model ◽  
Photovoltaic Cell ◽  
Temperature Control System

Integrated advantages from perovskite photovoltaic cell and 2D MoTe2 transistor towards self-power energy harvesting and photosensing

Nano Energy ◽  
2019 ◽  
Vol 63 ◽  
pp. 103833 ◽  
Author(s):  
Yeonsu Jeong ◽  
Dongguen Shin ◽  
Ji Hoon Park ◽  
Jeehong Park ◽  
Yeonjin Yi ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Photovoltaic Cell ◽  
Perovskite Photovoltaic

scholarly journals Low-cost high-efficiency system for solar-driven conversion of CO2 to hydrocarbons

2019 ◽  
Vol 116 (20) ◽  
pp. 9735-9740 ◽  
Author(s):  
Tran Ngoc Huan ◽  
Daniel Alves Dalla Corte ◽  
Sarah Lamaison ◽  
Dilan Karapinar ◽  
Lukas Lutz ◽  
...  
Keyword(s):  
High Efficiency ◽  
Electrochemical Cell ◽  
State Of The Art ◽  
Low Cost ◽  
Photovoltaic Cells ◽  
Energy Losses ◽  
Earth Abundant ◽  
Set Up ◽  
System Coupling ◽  
Perovskite Photovoltaic

Conversion of carbon dioxide into hydrocarbons using solar energy is an attractive strategy for storing such a renewable source of energy into the form of chemical energy (a fuel). This can be achieved in a system coupling a photovoltaic (PV) cell to an electrochemical cell (EC) for CO2 reduction. To be beneficial and applicable, such a system should use low-cost and easily processable photovoltaic cells and display minimal energy losses associated with the catalysts at the anode and cathode and with the electrolyzer device. In this work, we have considered all of these parameters altogether to set up a reference PV–EC system for CO2 reduction to hydrocarbons. By using the same original and efficient Cu-based catalysts at both electrodes of the electrolyzer, and by minimizing all possible energy losses associated with the electrolyzer device, we have achieved CO2 reduction to ethylene and ethane with a 21% energy efficiency. Coupled with a state-of-the-art, low-cost perovskite photovoltaic minimodule, this system reaches a 2.3% solar-to-hydrocarbon efficiency, setting a benchmark for an inexpensive all–earth-abundant PV–EC system.

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