scholarly journals The effect of flight state parameters on the performance of photovoltaic modules in solar aircraft

2021 ◽  
Vol 45 (1) ◽  
pp. 73-83
Author(s):  
Saydul Morshed Tanvir ◽  
Xiao Wenbo ◽  
Jin Xin
Keyword(s):  
Power Generation ◽  
Solar Radiation ◽  
Flight Speed ◽  
Generation Model ◽  
Flight Altitude ◽  
Atmospheric Density ◽  
Photovoltaic Modules ◽  
Time Space ◽  
Solar Radiation Intensity ◽  
Long Time

Based on the power generation model of photovoltaic modules, the effects of flight speed, altitude, time and area in solar aircraft on the performance of photovoltaic modules have been studied. As the flight speed increases, the power generated by the module increases but tends to saturate. When the conversion efficiency of photovoltaic modules is improved, the required power of the solar aircraft and the power generated by the photovoltaic modules are balanced at a faster flight speed. The power generated by the modules increases with the flight altitude but tends to saturate due to the drop of air temperature and the surface temperature of the module. The higher the altitude, the smaller is the atmospheric density, and atmospheric permeability, and the greater is the solar radiation intensity, and thus the power generated by the module increases. The power generated by the components is the strongest at noon. Battery performance is the strongest in summer and the weakest in winter, as the module’s performance is mainly determined by the intensity of solar radiation. Finally, the energy distribution of solar aircraft and long-time space flight has been discussed. J. Bangladesh Acad. Sci. 45(1); 73-83: June 2021

scholarly journals Prediction Model of Photo-thermal Power Generation Based on G (1,1) Optimization

2018 ◽  
Vol 246 ◽  
pp. 02057
Author(s):  
Yuan WANG ◽  
Gaojia LI ◽  
Wenhao YUE
Keyword(s):  
Power Generation ◽  
Solar Radiation ◽  
Prediction Model ◽  
Thermal Power ◽  
Model Parameters ◽  
Generation Model ◽  
Gray Model ◽  
Operation Process ◽  
Power Generation Equipment ◽  
Thermal Power Generation

In this paper, the photo-thermal power generation model is obtained by studying the operation process of solar radiation , light and thermal power generation equipment. By solving the gray model parameters by particle swarm optimization, a prediction model of light and heat generation based on G (1,1) optimization is proposed. In the case of example analysis, the amount of electricity generated by the solar radiation in the past few years was based on the photo-thermal power generation model, and the light and thermal power generation prediction model is used to obtain the photo-thermal power generation in the next few years. Photo-thermal power generation will provide data support for the planning of photo-thermal power generation, and it will also verify the reasonableness of the prediction model.

Experimental Analysis of a Novel Solar Pond Driven Thermoelectric Energy System

2020 ◽  
Vol 142 (12) ◽  
Author(s):  
Rohtash Goswami ◽  
Ranjan Das
Keyword(s):  
Power Generation ◽  
Solar Radiation ◽  
Lower Layer ◽  
Energy System ◽  
Biomass Energy ◽  
Maximum Temperature ◽  
Two Phase ◽  
Solar Pond ◽  
Solar Radiation Intensity ◽  
Temperature Potential

Abstract This paper describes an experimental study on a combined assembly of a solar pond and two-phase thermosyphon toward thermoelectric power generation under actual weather conditions and proposes its mandatory association with the biomass energy-based system. Experiments under the studied solar radiation intensity ranging between 26 W/m2 and 976 W/m2 reveal that the maximum steady-state temperature potential during the actual operation of a solar pond is not sufficient to generate the minimum threshold thermoelectric voltage for deriving necessary power needed to recharge a 12 V battery. It is also highlighted that solar radiation heats both the upper and the lower layers nearly equally; however, the heat is lost at a faster rate from the upper layer than the lower layer. Consequently, with the passage of time, the temperature of the lower layer rises, and interestingly, the probability of obtaining maximum voltage during a day is maximum during the early morning. Under the present set of conditions, the maximum temperature gain is 26.58 °C, whereas a minimum temperature potential of 45.62 °C is found necessary to produce the required voltage. The economic analysis of the proposed system reveals that the electricity generation obtained from the proposed system is better than diesel power generation. In particular, the system is suitable for locations where access to the conventional grid-based power is difficult. The work opens opportunities and establishes the necessity of developing low-cost thermoelectric materials for further improving the cost of power generation.

Wastewater disinfection by neutral pH photo-Fenton: The role of solar radiation intensity

2016 ◽  
Vol 181 ◽  
pp. 1-6 ◽  
Author(s):  
E. Ortega-Gómez ◽  
M.M. Ballesteros Martín ◽  
B. Esteban García ◽  
J.A. Sánchez Pérez ◽  
P. Fernández Ibáñez
Keyword(s):  
Solar Radiation ◽  
Radiation Intensity ◽  
Neutral Ph ◽  
Solar Radiation Intensity ◽  
Wastewater Disinfection

One World? The Poetics of Passenger Flight and the Perception of the Global

PMLA ◽  
2012 ◽  
Vol 127 (2) ◽  
pp. 264-282 ◽  
Author(s):  
Marit J. MacArthur
Keyword(s):  
Contemporary Poetry ◽  
Air Travel ◽  
Early Years ◽  
Flight Speed ◽  
Global Perspective ◽  
Historical Background ◽  
Private Lives ◽  
Time Space ◽  
Space Compression

The poetry of passenger flight, especially in the early years of the jet age, is exceptional in illuminating the perceptual, affective, and ethical confusions of the global perspective. Offering readings of James Merrill's “Flying from Byzantium,” Elizabeth Bishop's “Night City,” Amiri Baraka's “The Nation Is like Ourselves,” and Derek Walcott's “The Fortunate Traveller,” this essay integrates theoretical grounding in the phenomenology of flight (speed, distance, time, and perspective), the legacy of Romantic landscape meditation in contemporary poetry and the evolution of the literature of flight, and relevant historical background about the development of commercial air travel. The passenger's view in the period when flight was no longer thrilling and not yet tedious is a peculiarly apt trope for the difficulties of imagining the global and of registering the conundrum of globalization—in its most basic sense, time-space compression—from its repercussions in our private lives to the greatest humanitarian challenges of our time.

scholarly journals EFFECT OF TEMPERATURE, HUMIDITY AND IRRADIANCE ON SOLAR POWER GENERATION

2021 ◽  
Vol 26 (4) ◽  
pp. 113-119
Author(s):  
FRANK ONAIFO ◽  
AKPOFURE ALEXANDER OKANDEJI ◽  
OLAMIDE AJETUNMOBI ◽  
DAVID BALOGUN
Keyword(s):  
Power Generation ◽  
Solar Cells ◽  
Solar Cell ◽  
Solar Radiation ◽  
Solar Irradiance ◽  
Solar Power ◽  
Corrosion Process ◽  
Effect Of Temperature ◽  
Photovoltaic Solar Cell ◽  
Solar Power Generation

This paper studies the effect of temperature, humidity and irradiance on the power generated by a photovoltaic solar cell. This was achieved using pyranometer for determining the solar radiation, wet and dry thermometer for measuring humidity, and digital multimeter for voltage and current measurement. The result of the study show that power generation increases with increase of solar irradiance. Additionally, changes of humidity level and temperature do not significantly affect solar power generation. Furthermore, it was also observed that high temperatures and higher humidity levels accelerate the corrosion process on the solar cells which reduces the efficiency of the cells.

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