scholarly journals Artificial neural network and neuro fuzzy inference modelling of global solar radiation data using bayesian algorithm for design of solar energy conversion system

2018 ◽  
Vol 7 (2.21) ◽  
pp. 88
Author(s):  
S Shanmuga Priya ◽  
Lisa Maria Ubbenjans ◽  
I Thirunavukkarasu
Keyword(s):  
Solar Radiation ◽  
Solar Energy ◽  
Energy Conversion ◽  
Fuzzy Inference ◽  
Solar Energy Conversion ◽  
Global Solar Radiation ◽  
Weather Data ◽  
Applied Model ◽  
Energy Conversion Systems ◽  
Inference Systems

Measurement of global solar radiation is particularly required for proper design of solar energy conversion systems. This study investigates the use of software tools like neural networks and fuzzy inference systems for modelling so as to predict global solar radiation using different input parameters based on available weather data. Advantages include simplicity, speed and efficiency, to make short term predictions of global solar radiation at different locations in India, Germany and United Kingdom. It helps in estimation of effectiveness of the applied model which matches solar radiation and other meteorological parameters which are in a non-linear relationship. Bayesian Inference algorithm is used for the current study in estimation of global solar radiation.  

Physics Considerations of Solar Energy Conversion

1984 ◽  
Vol 106 (1) ◽  
pp. 3-15 ◽  
Author(s):  
A. F. Haught
Keyword(s):  
Solar Radiation ◽  
Solar Energy ◽  
Energy Conversion ◽  
Conversion Efficiency ◽  
Radiant Energy ◽  
Solar Energy Conversion ◽  
Quantum Processes ◽  
Maximum Conversion ◽  
Energy Conversion Systems ◽  
Maximum Conversion Efficiency

A comparative analysis is presented of the conversion of radiant energy to useful work by thermal and quantum processes. The operation of thermal and quantum converters and the thermodynamic conversion efficiency of each are developed in terms of the mechanism of radiation-matter interaction in thermal and quantum systems. From the analysis the maximum conversion efficiency of a single-collector thermal converter with unconcentrated solar radiation and an ambient (reservoir) temperature of 300 K is 0.540; for the same conditions the maximum conversion efficiency of a single-collector quantum system is 0.309. The analysis is extended to consider the effects on the conversion efficiency of heat reject temperature, cascaded operation, in which the reject heat of the quantum converter is used as the input to a thermal bottoming cycle, and of concentration of the solar radiation. The results obtained represent the thermodynamic limits for radiant energy conversion by thermal and quantum processes, and calculations with solar input serve as a reference against which to judge the performance and capabilities of prospective solar energy conversion systems.

Thin-Film Multilayer Filter Designs For Hybrid Solar Energy Conversion Systems

1985 ◽  
Author(s):  
L. DeSandre ◽  
D. Y. Song ◽  
H. A. Macleod ◽  
M. R. Jacobson ◽  
D. E. Osborn
Keyword(s):  
Thin Film ◽  
Solar Energy ◽  
Energy Conversion ◽  
Solar Energy Conversion ◽  
Energy Conversion Systems

scholarly journals A Modified Method to Generate Typical Meteorological Years from the Long-Term Weather Database

2012 ◽  
Vol 2012 ◽  
pp. 1-9 ◽  
Author(s):  
Haixiang Zang ◽  
Qingshan Xu ◽  
Pengwei Du ◽  
Katsuhiro Ichiyanagi
Keyword(s):  
Relative Humidity ◽  
Solar Radiation ◽  
Solar Energy ◽  
Atmospheric Pressure ◽  
Energy Systems ◽  
Global Solar Radiation ◽  
Weather Data ◽  
Radiation Data ◽  
Modified Method

A modified typical meteorological year (TMY) method is proposed for generating TMY from practical measured weather data. A total of eleven weather indices and novel assigned weighting factors are applied in the processing of forming the TMY database. TMYs of 35 cities in China are generated based on the latest and accurate measured weather data (dry bulb temperature, relative humidity, wind velocity, atmospheric pressure, and daily global solar radiation) in the period of 1994–2010. The TMY data and typical solar radiation data are also investigated and analyzed in this paper, which are important in the utilizations of solar energy systems.

Improved Heat Transfer Using Micro-Structures in Trifold Solar Energy Conversion Systems

2014 ◽  
Vol 659 ◽  
pp. 417-420
Author(s):  
Aristotel Popescu ◽  
David Pfund ◽  
Abel Hernandez-Guerrero ◽  
Ema Carmen Panaite ◽  
Ana Georgiana Lupu ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Solar Energy ◽  
Energy Conversion ◽  
Renewable Energy Sources ◽  
Solar Energy Conversion ◽  
Thermal Systems ◽  
Heat Transfer Augmentation ◽  
Flow And Heat Transfer ◽  
Energy Conversion Systems ◽  
Micro Structures

The worldwide renewable energy sources harvesting grew recently at rates of 10–60% annually for many technologies, due to improvements made in all areas. In solar energy conversion, an improvement recently presented in literature is the hybrid system that provides both electricity and thermal energy for domestic applications. For the trifold PV-TE-DHW system, the electrical conversion efficiency is increased by using a thermoelectric (TE) module. This paper proposes the use of micro-channeled heat exchangers at both hot and cold sides of the TE module to improve the heat exchange from the working fluids. The authors developed prior works and published papers in the area of fluid flow and heat transfer in microstructures, heat transfer augmentation, and in solar thermal systems. Results obtained show an improved efficiency energy transfer.

Identification of roof areas suited for solar energy conversion systems

1997 ◽  
Vol 11 (1) ◽  
pp. 25-36 ◽  
Author(s):  
H. Wittmann ◽  
P. Bajons ◽  
M. Doneus ◽  
H. Friesinger
Keyword(s):  
Solar Energy ◽  
Energy Conversion ◽  
Solar Energy Conversion ◽  
Energy Conversion Systems
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