scholarly journals Evaluation of distributional solar radiation parameters of Cacak using long-term measured global solar radiation data

2007 ◽  
Vol 11 (4) ◽  
pp. 125-134 ◽  
Author(s):  
Snezana Dragicevic ◽  
Nikola Vuckovic
Keyword(s):  
Solar Radiation ◽  
Solar Energy ◽  
Energy Demand ◽  
Energy Production ◽  
Global Solar Radiation ◽  
Primary Energy ◽  
Horizontal Surface ◽  
Energy Potential ◽  
Radiation Data

Serbia is becoming more dependent on imported primary energy to meet its increasing energy demand. The ratio of indigenous primary energy production to primary energy consumption is decreasing. Therefore, it is of great importance for Serbia to make use of its indigenous energy resources more effectively, including its solar energy potential. Knowledge of global solar radiation is essential in the prediction, study, and design of the economic viability of systems which use solar energy. In this paper, the solar radiation data on Cacak (lat 43.87?N, long 20.33?E) are analyzed based on 4 years of global solar radiation data measured on a horizontal surface. The distributional solar radiation parameters are derived from the available data and analyzed. The available solar radiation data on a horizontal surface are converted to that of various tilt angles and the yearly and monthly optimum tilt angles are determined.

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.

Preliminary results on the determination of solar energy potential using LiDAR technology

2015 ◽  
Vol 6 (1) ◽  
pp. 11-17 ◽  
Author(s):  
G. Szabó ◽  
P. Enyedi ◽  
Gy. Szabó ◽  
I. Fazekas ◽  
T. Buday ◽  
...  
Keyword(s):  
Solar Radiation ◽  
Solar Energy ◽  
Energy Production ◽  
Alternative Energy ◽  
Surface Model ◽  
Solar Panels ◽  
Energy Potential ◽  
Potential Surfaces ◽  
Large Power ◽  
Automatic Data

According to the challenge of the reduction of greenhouse gases, the structure of energy production should be revised and the increase of the ratio of alternative energy sources can be a possible solution. Redistribution of the energy production to the private houses is an alternative of large power stations at least in a partial manner. Especially, the utilization of solar energy represents a real possibility to exploit the natural resources in a sustainable way. In this study we attempted to survey the roofs of the buildings with an automatic method as the potential surfaces of placing solar panels. A LiDAR survey was carried out with 12 points/m2 density as the most up-to-date method of surveys and automatic data collection techniques. Our primary goal was to extract the buildings with special regard to the roofs in a 1 km2 study area, in Debrecen. The 3D point cloud generated by the LiDAR was processed with MicroStation TerraScan software, using semi-automatic algorithms. Slopes, aspects and annual solar radiation income of roof planes were determined in ArcGIS10 environment from the digital surface model. Results showed that, generally, the outcome can be regarded as a roof cadaster of the buildings with correct geometry. Calculated solar radiation values revealed those roof planes where the investment for photovoltaic solar panels can be feasible.

scholarly journals A Review of Solar Radiation Models—Part I

2013 ◽  
Vol 2013 ◽  
pp. 1-11 ◽  
Author(s):  
A. K. Katiyar ◽  
C. K. Pandey
Keyword(s):  
Renewable Energy ◽  
Solar Radiation ◽  
Solar Energy ◽  
Energy Demand ◽  
Socioeconomic Development ◽  
Global Solar Radiation ◽  
Point Of View ◽  
Climate Conditions ◽  
Energy Devices ◽  
The World

Energy is considered as a key source for the future and plays a pivotal role in its socioeconomic development by raising the standard of living and the quality of life, not only for India but also for the world. In view of the scarce fossil fuel reserves, solar energy is one of the important sources of renewable energy used in India because of the suitable climate conditions. It receives about 5485.17 Wh/m2day of solar insolation with an annual total of about 19, 74, 661.2 Wh/m2. Except for the monsoon months, solar radiation incidence is very encouraging, from the application point of view. For the efficient functioning and better performance of solar energy device, the information of solar radiation and its components at particular location is very essential for designing the solar energy devices. Therefore, over the years, several empirical correlations have been developed in order to estimate the more appropriate solar radiation in India as well as around the world. Here we present a review of different solar radiation models which predict global solar radiation and discussed the long-term plan to meet future energy demand with renewable energy due to economy growth.

scholarly journals Ångström-Prescott Models of Solar radiation over Earth surface

2021 ◽  
Vol 2135 (1) ◽  
pp. 012005
Author(s):  
Gloria MarinaGloria Marina Bautista-Rodríguez ◽  
César Alexander Chacón-Cardona
Keyword(s):  
Solar Radiation ◽  
Solar Energy ◽  
Energy Demand ◽  
Construction Projects ◽  
Environmental Variability ◽  
Geographical Location ◽  
Global Solar Radiation ◽  
Cost Overruns ◽  
Energy Needs ◽  
Solar Resource

Abstract The current energy demand increases every day and the deficit of electricity generation in Colombia due to technical aspects such as the lack of generation infrastructure, cost overruns in the construction projects of new plants and environmental variability as a consequence of climate change, entail a high risk of energy rationing; for this reason some of the users, whether industrial or residential, have decided to seek multiple alternatives to reduce the costs of their billing in interconnected areas and even supply their energy needs. Among these alternatives is found solar energy in its thermal and photovoltaic use, a resource that must be characterized in order to determine the technical and budgetary aspects involved in the implementation of profitable energy generation projects. This article seeks to provide technical tools for the design and implementation of generation projects based on solar energy, providing physical-mathematical approach based in the classical Angström-Prescott model that allow engineers and researchers to model the global solar radiation on the Earth’s surface in order to maximize the use of this resource in a specific geographical location. Although there are different ways to characterize the solar resource on the earth’s surface, this paper presents a review study focused on the most important global solar radiation estimation models present in the literature.

scholarly journals Study of Solar Energy Potential using CMP6 Pyranometer at Nepalgunj, Nepal

2017 ◽  
Vol 3 (1) ◽  
pp. 51-58 ◽  
Author(s):  
Bed Raj KC ◽  
Shekhar Gurung
Keyword(s):  
Seasonal Variation ◽  
Solar Radiation ◽  
Solar Energy ◽  
Sea Level ◽  
Global Solar Radiation ◽  
Energy Technology ◽  
Energy Potential ◽  
Annual Average ◽  
Average Temperature ◽  
Geographical Locations

The global solar radiation (GSR) is measured at the horizontal surface since 2011 using calibrated CMP6 Pyranometer at Nepalgunj which is located at an altitude 150m above sea level. This paper explains the daily, monthly and seasonal variation of global solar radiation and also compares temperature with global solar radiation. The average temperature in Nepalgunj varies between 44°C (it is hottest from May through July) and 30°C, although during winter (November-January) it can reach 4°C. The annual average daily global solar radiation is about 12.9MJ/m2/day which is sufficient to promote active and passive solar energy technology in Nepalgunj and other similar geographical locations.

scholarly journals Wind and Solar Radiation Potential Assessment in Kano, Nigeria Using Weibull and Samani Models

2018 ◽  
Vol 17 (1) ◽  
pp. 21-27
Author(s):  
Mustapha Mudasiru ◽  
Mohd Wazir Mustafa
Keyword(s):  
Wind Speed ◽  
Solar Radiation ◽  
Solar Energy ◽  
Electric Power ◽  
Power Supply ◽  
Global Solar Radiation ◽  
Horizontal Surface ◽  
Average Wind Speed ◽  
Power Sources ◽  
Average Wind

A clean, source free, environmentally friendly and renewable source of energy such as wind and solar energy can be used for providing sustainable power supply to remedy an epileptic and unreliable power supply systems. For decades, electric power supply situation in Kano, Nigeria has been a major source of serious concern. The epileptic power supply has hindered the socio-economic growth industrialization and, subsequently, increase air pollution due to individual stand-alone diesel generators. Various government incentives and policies have little or no effect to improve the availability and reliability of the electric power. The aviation industries especially the Navigation and communication equipment required, apart from availability, a reliable power sources because of their sensitivity to reliable and safe Aircraft navigation. The need for an alternate renewable energy system (RES) of power supply away from the National grid and diesel generator is inevitable at Kano. This paper proposes an assessment of wind and solar energy potentialities at Kano in Nigeria using Weibull distribution methods and the Samani model to determine the wind features and estimate global solar radiation potentials respectively for power supply generation. A six years (2009-2014) monthly mean wind speed data measured at 10 m height was collected and extrapolated to 50 m height level for statistical analysis, while 22 years monthly solar radiation, temperature amplitude and relative humidity of the location were obtained from NASA web to calibrate, validate and evaluate the Samani model, ten years (2003-2012) maximum and minimum temperature were then used to predict the global solar radiation on horizontal surface of the location. The minimum Weibull average wind speed was found to be 8.60 m/s and the maximum average wind speed was 11.24 m/s while the minimum power density was 440.03 W/m2 and the highest was 947.26 W/m2 at the 10 m height level. The lowest average global solar radiation on the horizontal surface was 17.96 MJ/m2/d and highest average global solar radiation on the horizontal surface was 26.38 MJ/m2/d. The site has been found to have great potentials for wind and solar utility power generation capacity.

scholarly journals Evaluation of different sunshine-based models for predicting global solar radiation – case study: New Borg El-Arab city, Egypt

2018 ◽  
Vol 22 (2) ◽  
pp. 979-992 ◽  
Author(s):  
Gasser Hassan ◽  
Elsayed Youssef ◽  
Mohamed Ali ◽  
Zahraa Mohamed ◽  
Ahmed Hanafy
Keyword(s):  
Solar Radiation ◽  
Global Solar Radiation ◽  
Horizontal Surface ◽  
Monthly Average ◽  
Radiation Data ◽  
Evaluation Of Performance ◽  
Model Predictions ◽  
Statistical Indicators ◽  
Radiation Measurements

The unavailability of the solar radiation measurements for different locations around the world leads to develop various empirical models to estimate the global solar radiation. In this consider, this study aims to investigate the performance of different solar radiation models to predict the monthly average daily global solar radiation on a horizontal surface. To achieve this, the measured global solar radiation data for a case study location are used. The model predictions are compared with the measured data to introduce the most accurate model for estimating the global solar radiation. The performance of each model is evaluated based on the different statistical indicators. The results show that the Robaa model has the best performance among the other models. Consequently, it can be used for estimating global solar radiation on a horizontal surface in the location under consideration. The accurate estimations of the global solar radiation using this approach can be used in the design and evaluation of performance for different solar applications.

scholarly journals Solar Energy Potential in Kathmandu Valley, Nepal

2016 ◽  
Vol 8 (1) ◽  
pp. 77-82 ◽  
Author(s):  
Santosh Regmi ◽  
Sunil Adhikary
Keyword(s):  
Solar Radiation ◽  
Solar Energy ◽  
Energy Demand ◽  
Fossil Fuels ◽  
Sunshine Duration ◽  
Meteorological Data ◽  
Winter Season ◽  
Kathmandu Valley ◽  
Energy Potential ◽  
Solar Electricity

Meteorological data such as solar radiation (1975-1984, and 2002-2010) and sunshine duration (1968-2004) were analyzed to study temporal characteristics of solar energy and investigate solar energy potential in Kathmandu valley. Pre-monsoon and post monsoon seasons have higher mean monthly sunshine duration (about 8 hours/day) than summer (about 5 hours/day) and winter (about 7 hours/day) seasons over Kathmandu. Pre-monsoon and monsoon seasons receive solar energy of about 190 Wm-2 and 170 Wm-2 respectively. The winter season receives the least amount of solar radiation (135 Wm-2). Approximately 220 MW of solar electricity can be produced in Kathmandu that will substantially fulfill current energy demand and reduce environmental pollution in the valley by replacing fossil fuels with clean solar electricity.Journal of Hydrology and Meteorology, Vol. 8(1) 2012, p.77-82

scholarly journals A Study of Solar Energy Potential in Sapele, Nigeria

2017 ◽  
Vol 13 (2) ◽  
Keyword(s):  
Solar Radiation ◽  
Solar Energy ◽  
Average Power ◽  
Global Solar Radiation ◽  
Energy Crisis ◽  
Energy Potential ◽  
Average Temperature ◽  
In Series ◽  
Average Current ◽  
Panel Cell

In this paper, a study was carried out on solar energy potential in Sapele, Nigeria. Five photovoltaic solar panel (cell) connected in series where used to generate data on maximum and minimum temperature readings, voltage and current readings for a period of 50 days. The result obtained shown that a mean average temperature readings of 30.01 °C, mean average voltage readings of 14.23 V and mean average current reading of 4.206 A were obtained. The global solar radiation and extraterrestrial solar radiation were calculated as 11.09 kwh/m2 /day and 5.31kwh/m2 /day respectively. Considering the average power deposited (0.060 kW and 0.180 kWh) daily, enough energy can be obtained from solar power system and this can help to solve part of Nigeria energy crisis.

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