Evaluation of Solar Electric Power Technologies in Jordan Using Fuzzy Logic

2008 ◽  
Author(s):  
Omar Badran ◽  
Emad Abdulhadi ◽  
Rustom Mamlook
Keyword(s):  
Power Generation ◽  
Fuzzy Logic ◽  
Solar Radiation ◽  
Research And Development ◽  
Electric Power ◽  
The Sun ◽  
Power Capacity ◽  
Solar Ponds ◽  
Land Usage ◽  
High Solar Radiation

Jordan is considered one of the sun-belt countries, which possesses high solar radiation on its horizontal surface. The present study will be concerned on the uses of fuzzy sets methodology to perform evaluation between the most suitable solar technologies for power generation in Jordan, namely, solar ponds and photovoltaic (PV) technologies. The criterion of the evaluation were based on different parameters, i.e., power capacity, efficiency, availability, capacity factor, storage capability, cost, maturity, land usage and safety, they are planned as the technologies for the near foreseen term. Based on benefit to cost ratios, the results showed that photovoltaic technology found to be the better choice in terms of generating electricity, research and development and more effective programs of support and installation.

Wind, hydro and tides Fully sustainable energy

2018 ◽  
Author(s):  
E. L. Wolf
Keyword(s):  
Power Generation ◽  
Wind Turbine ◽  
Electric Power ◽  
Vertical Axis ◽  
Tidal Energy ◽  
The Sun ◽  
Rotor Design ◽  
Vertical Axis Wind Turbines ◽  
The Earth ◽  
Pumped Storage

Wind-turbine science and technology is outlined, following the work of Betz. Rotor design, blade construction and aspects of electric power generation are described, principally for large horizontal-axis devices, with some mention of vertical axis wind turbines. Hydropower and pumped storage are treated, with mention of Francis and Kaplan turbines. A summary of tidal energy is included. We now go into detail on some aspects of these topics. As these forms of energy come either from the Sun (in an indirect fashion) or from the motion of the Earth and Moon, they are available on an indefinite term into the future.

ORIENTATION OF FEEDLOT BULLS WITH RESPECT TO THE SUN DURING PERIODS OF HIGH SOLAR RADIATION IN WINTER

1981 ◽  
Vol 61 (3) ◽  
pp. 809-816 ◽  
Author(s):  
H. W. GONYOU ◽  
W. R. STRICKLIN
Keyword(s):  
Solar Radiation ◽  
Air Temperature ◽  
Mean Value ◽  
Body Orientation ◽  
The Sun ◽  
Direct Radiation ◽  
High Solar Radiation ◽  
The Mean ◽  
Beef Bulls

Two experiments were conducted using yearling beef bulls to determine the relationships between body orientation and air temperature and solar radiation in winter. In exp. 1, observations were made at noon on 23 days from December to April to determine the orientation of 90 bulls as a deviation from an angle perpendicular to the sun's rays (ANG). The mean value of ANG for standing, non-eating bulls was 38.2°. In general, ANG decreased as direct radiation increased or temperature decreased. On cold sunny days, 53% of the standing bulls (n = 313) had ANG values of less than 20°, and the proportion decreased to only 31% of the bulls (n = 270)on warm cloudy days. In exp. 2, ANG was determined for 15 bulls at hourly intervals during the daylight hours on six occasions from January to April. Bulls stood closer to the perpendicular early in the day when temperatures were low, and when solar radiation was high. The results of these experiments indicated that bulls modified their body orientation to increase exposure to solar radiation on cold sunny days.

Effect of Tracking Flat Reflector Using Novel Auxiliary Drive Mechanism on the Performance of Stationary Photovoltaic Module

2007 ◽  
Author(s):  
Sudhir Kulkarni ◽  
Saurabh Tonapi ◽  
Pierre Larochelle ◽  
Kunal Mitra
Keyword(s):  
Power Generation ◽  
Solar Radiation ◽  
Total Solar Radiation ◽  
The Sun ◽  
Drive Mechanism ◽  
Diffuse Solar Radiation ◽  
Pv Array ◽  
Pv Module ◽  
Continuous Power ◽  
Spherical Mechanism

General ways of cost reduction in solar power generation are Solar Tracked Photovoltaic (PV) arrays and concentrator systems. The PV array tracking becomes infeasible with increase in the size of the array and concentrated system is ineffective for continuous power generation as it requires external cooling system. Proposed approach here is to employ a novel auxiliary mirror drive mechanism to track the sun and reflect the rays on to stationary PV arrays. The performance is compared with same PV module without reflector under the same environmental conditions. Solarex SX 38 PV module and cleardome solar reflector (96% reflectivity) are used for the experiments. PV module is connected to electrical load through Maximum Power Point Tracker (MPPT) and data acquisition system for voltage and current measurements. Incident radiation is measured using Li-Cor pyranometers located on the plane of the module and horizontal plane. A shadow band device is used for the measurement of diffuse solar radiation. The PV module is placed facing south at a tilt angle equal to the latitude angle. A reflector is placed facing north and oriented using the novel Mirror Positioning Device (MPD). The MPD is a five bar spherical mechanism used for solar tracking. This mechanism has two degrees of freedom which allows for tracking the sun along its azimuth and altitude. The mechanism is driven by two servo motors which actuate two links. The actuated link 1 helps in achieving the altitude gained by the sun while the actuated link 2 helps to attain the azimuth (or horizontal movement). The reason for using a spherical mechanism is due to the virtue of its architecture; it allows for carrying a larger payload and also helps in reducing weight. Its advantages are that it requires less power than traditional PV array tracking; there is no need for sensors to determine the position of the sun and also that it being a two degree of freedom spherical mechanism yields a large singularity free mirror orienting workspace. Solar radiation, efficiency, and temperature are plotted as a function of time for analysis. Average diffuse solar radiation is found to be in the range of 15 to 20% of total solar radiation. Different experiments are performed to find out the optimum cycle speed for reflector. Measurements show that output from the PV panel can be increased in the order of 22% with the use of tracking reflector. This work has succeeded in its goal in realization that the considerable increase in output power from PV modules can be achieved.

scholarly journals Comparison of Solar Radiation Torque and Power Generation of Deployable Solar Panel Configurations on Nanosatellites

Aerospace ◽  
2019 ◽  
Vol 6 (5) ◽  
pp. 50 ◽  
Author(s):  
Syahrim Azhan Ibrahim ◽  
Eiki Yamaguchi
Keyword(s):  
Power Generation ◽  
Solar Radiation ◽  
Solar Power ◽  
Solar Panel ◽  
Solar Array ◽  
The Sun ◽  
Solar Panels ◽  
Solar Power Generation ◽  
Software Algorithms ◽  
Selection Of

Nanosatellites, like CubeSat, have begun completing advanced missions that require high power that can be obtained using deployable solar panels. However, a larger solar array area facing the Sun increases the solar radiation torque on the satellite. In this study, we investigated solar radiation torque characteristics resulting from the increased area of solar panels on board the CubeSats. Three common deployable solar panel configurations that are commercially available were introduced and their reference missions were established for the purpose of comparison. The software algorithms used to simulate a variety of orbit scenarios are described in detail and some concerns are highlighted based on the results obtained. The solar power generation of the respective configurations is provided. The findings are useful for nanosatellite developers in predicting the characteristics of solar radiation torques and solar power generation that will be encountered when using various deployable solar panels, thus helping with the selection of a suitable configuration for their design.

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