Table 3 - uploaded by Kifilideen Lekan Osanyinpeju
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table showing the daily maximum output power and time of maximum power of the solar panels for the period of the 21 days.
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Solar energy is gaining more attention than ever before due to its potential ability to provide the world energy needed at a sufficient and reliable rate. Putting more focus on its optimum harvesting and utilization can eventually solve the problem of energy shortage by balancing up the energy demand of the nation. Adequate information on the outpu...
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Context 1
... it can be clearly deduced that the output current and output power from the mono-crystalline are directly proportional to each other. Table 3 shows the daily maximum output power and time of maximum power of the solar panels for the period of the 21 days. The results show that the time of maximum output current tally with the time of the maximum output power which also shows that output current and output power of solar panel are strongly correlated. ...
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Citations
... In general, the quality and survival rate of day-old chicks depend on various factors such as the genetic line of the breeders, breeder age, egg weight, egg storage conditions and duration, and incubation conditions such as temperature, humidity, gas levels, and altitude [41,42]. ...
... The use of solar energy has been gaining significance as a continuous supply of alternative power source, which seems to have an answer to frequent power constraints faced by farmers. Osanyinpeju [27] clearly expressed that putting more focus on solar energy optimum harvesting and utilization can eventually solve the problem of energy shortage by balancing up the energy demand of the nation. Kuye et al. [25] specified that continuous supply of conventional energy in Nigeria is a mirage, due to frequent power outage. ...
Egg incubators with regular, effective and efficient operation have the capacities of providing enough poultry birds which can serve every household in Nigeria with sufficient amount of protein on daily basis. Although many commercial incubators in Nigeria have folded up due to epileptic and erratic electricity supply which disrupts and impairs the operation of the incubators and reduce their level of performance resulting into low production and high cost of poultry birds. In order to ensure an uninterrupted power supply and keep egg incubators in operation, a solar powered poultry egg incubator was developed. The main components of the incubator are incubating chamber, control system and solar powered system. The developed solar incubator was 610 mm × 607 mm × 1649 mm in size with a capacity for 150 eggs. The angle of turn of the egg tray was fixed at 30o. The diameter of the crank of the turning mechanism was calculated from the maximum displacement of the egg crate support. The radius of the ventilation hole was based on the time required to empty all the air in the chamber. The total heat required in the chamber was analysed and evaluated. The size of the components of the solar powered system was based on the amount of energy needed and the duration of usage. Preliminary test was conducted on the developed solar powered poultry egg incubator. The diameter of the crank of the turning mechanism was 151 mm while the radius of the ventilation hole obtained was 13.30 mm. The heat loss through the walls by conduction, air convection and ventilation hole were 59.77 W, 10.9741 W and 0.0003222 W respectively. The total heat required was 85.44W. The energy consumption needed by all the loads in the incubator for the period of 24 hours was 10.48 MJ. The sizes of the solar panels, charge controller, batteries and inverter power designed and used were 480 W, 40 A, 400 AH and 2 kW respectively. For the duration of the days of groundwork the temperature was maintained within the recommended range of 36 to 39oC which was achieved with the aid of the temperature control system. The preliminary test on the developed solar powered system poultry egg incubator indicates that the egg incubator works effectively well within the recommended temperature required for successful hatchability.
... The value obtained from their result was 335 W (69.8 ℅). Osanyinpeju et al. [24] also worked on output voltage and output power-time characteristics of the six 80 W (480 W) mono-crystalline photovoltaic solar panels which was established in the laboratory during the working condition of the solar panels. The maximum output power from the six 80 W (480 W) solar panels obtained in the laboratory (under working condition when the six 80 W solar panels including the 40 W charge controller, 400 AH solar battery and 2000 W solar inverter was used to power a machine) for each day for the period of the 21 days ranged from 302 to 339 W. Also, the average maximum output power gotten for the period of the 21 days was 323 W which represents 67.3 % of the output power stated by the manufacturer. ...
Human existence relies on solar energy either directly or indirectly and the world at large cannot continue to exist, remain or live without the solar energy. Solar power in Nigeria can serve as a source of sustainable energy if fully utilized due to abundant availability all year round energy and its regular appearance on daily basis in the sky under a friendly environment. The maximum output current and power of solar panel used in harvesting solar energy are obtained at solar noon. The time of solar noon differs from place to place. The study investigated suitable time for the performance measurement and evaluation of mono-crystalline photovoltaic panels at Federal University of Agriculture, Abeokuta (FUNAAB), Ogun State, Nigeria. The main materials used for study consists of six 80 W (480 W) solar panels of sunshine product made in Germany, CM 5024 PWM 40 A digital intelligent solar charge controller 12/24 V and two 200 AH (400 AH) solar batteries. The output current and cumulative charges were read and recorded for a period of 21 days between 6: 30 am to 7: 30 pm for each day. The peak sunshine hour for each day was estimated from the cumulative charge and the peak current for each day. The average output current from the panels had a value of zero at 6:30 am which increases to a peak value of 21.4 A at 1: 00 pm (solar noon) then dropped gradually to zero at 7: 00 pm. The study demonstrates that the peak sunshine hours vary from day to day and the estimated average peak sunshine hour obtained for the period of the 21 days was 6.4 hours. The results of the investigation indicated that the time of maximum output current obtained changes from day to day which may be due to change in time of the solar noon but was between the periods of 1: 30 pm and 2: 30 pm. The time obtained would be the best period to carry out performance measurement and evaluation on the solar panel for the location (Federal University of Agriculture, Abeokuta (FUNAAB), Ogun State, Nigeria) in other to obtain accurate estimation of the maximum power output.
