Design and Performance of PV Dust Cleaning System in Medina Region (original) (raw)
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Egypt has one of the best weather conditions for producing renewable energy in the world. As a result, there has been a proven market pull for solar energy in the region in a growing clean energy export market as clean energy. Solar energy maintenance is relatively low comparing to other power generation sources. Although, less maintenance is required, the important factor that reduces its generation according to accumulate dust on solar PV modules. Dust accumulation effectively reduces the energy yield of solar panels. So, the current paper deals with the locally designed automatic cleaning mechanism for solar PV modules. The designed mechanism consists of an electronic solar module that automatically cleans the solar module at the required rate. without requiring water to clean the solar module. This cleaning mechanism is also suitable for pole mounted street lighting systems where daily manual cleaning is not possible and could be more costly. Six months later from start experime...
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The most promising application of solar energy is the conversion of solar energy into electrical energy by using solar photovoltaic (PV) panel. The performance of solar based PV panel is definitely influenced by the amount of solar radiation, which are reaching on the panel surface. Since the solar PV panels are operating in open atmosphere dust particles get deposited on their surfaces and most of the times they have to work in this condition. These deposited dust particles create a layer of dust particles over the panel surface which prevents the 100% penetration of solar radiation into the panel surface. Therefore, proper cleaning of the panel surface becomes very necessary. In order to improve the performance of the PV panel an automatic microcontroller driven dust cleaning technique is developed which is capable of removing the accumulated dust particles from the PV panel surface. Moreover, an experimental study has been performed to analyse the efficiency of this developed tec...
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Utilizing solar energy to generate electricity on large scale photovoltaic (PV) power plants became a trend as a new option adopted by many countries. The optimum installation of PV power plants depends on the geographical location, which specifies irradiation, latitude, longitude, tilt angle, orientation, etc. However, the PV panel affected by many environmental parameters, which has a significant impact on the power productivity, conversion efficiency, and cost of energy. Dust is one of the essential parameters that affect PV panel performance, yield, and profitability. However, the dust characteristics (type, size, shape, meteorology, etc.) is geographical site specified. Many researchers investigated PV panel dust cleaning and mitigation methods. This paper put into perspective the recent investigations of dust impact on PV systems and decent cleaning methods. It is found that daily PV power losses and monthly efficiency reduction due to dust in some locations is more than 1% and 80%, respectively, which is relatively high. The present paper aims to provide an appraisal of dust problem and cleaning methods status, challenges, and prospects. Also, a critical review is developed for researchers interested in this field. It is found the main dust elements which have impact are six dust pollutants. Also, the study conclude that selection of the dust cleaning method depends on many parameters in term of technical and economic aspects. Finally, this paper contains a comprehensive review of dust problem and cleaning methods for engineers, designers, and researchers dealing with PV systems.
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One of the challenges facing investment in photovoltaic (PV) energy is the accumulation of dust on the surface of the PV panels due to frequent dust storms in many countries, including Iraq. Surface dust particles reduce solar irradiance which declining the electrical performance of the PV solar systems. Therefore, this paper proposes an experimental study to analyze and evaluate the power efficiency of a PV system installed in Baghdad city, Iraq. The performance of dusty solar PV array is compared with that of the clean array of the same PV system. The clean solar array is equipped with an automatic-sprayer cleaning system that is powered by the PV system. The automatic cleaning system utilized in the test system reduces human effort by cleaning the PV array using closed-cycle water with low energy consumption (less than 10 Wh). The PV array under test is part of a 15 kW grid-tied PV system. The experimental results show significant improvement in the performance parameters of efficiency, performance ratio, and the energy gain compared to the clean array. Furthermore, the experimental study contributes to a reduction in CO2 emission, which is substantial for the Iraqi environment that suffers from predominate fossil-fuel power plants.
A Comparative Study of Dust Cleaning Methods for the Solar PV Panels
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The present energy consumption scenario is clearly showing the faster depletion of fossil fuel reserves. On the other hand, energy usage index indicates the state of growth of a country. The use of renewable energy sources like solar PV, wind and such alternatives has increased in the recent years. Considerable loss in conversion efficiency of solar PV system has been noticed due to non-availability of proper insolation and accumulation of dust particles on the panels or shading. A comparative study of various cleaning methods of solar panels has been done in this article with emphasis on innovative idea of separation of dust by electrostatic precipitator (ESP). Electrostatic precipitators uses static electricity to remove the dust from the panel by applying energy only to the particular matter being collected and therefore is very efficient in its applications unlike conventional cleaning. This increases the solar panels insolation absorption ability. The weight sensor continuously...
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International Journal for Research in Applied Science & Engineering Technology (IJRASET), 2022
From ancient times the human beings are very aware about the cleanliness of the house and the parts neighbouring to it. The solar PV modules are generally employed in dusty environments which is the case in tropical countries like India. The dust gets accumulated on the front surface of the module and blocks the incident light from the sun. It reduces the power generation capacity of the module. The power output reduces as much as by 50% if the module is not cleaned for a month. In order to regularly clean the dust, a automatic cleaning system has been designed, which senses the dust on the solar panel and also cleans the module automatically. This automated system is implemented using 8051 microcontroller which controls the DC gear motor. This mechanism consists of a sensor (LDR). While for cleaning the PV modules, a mechanism consists of a slidingbrush has been developed. A number of environmental factors such as wind speed, humidity, ambient temperature, solar radiation, atmospheric dust and direction influences the power generation process using installed solar photovoltaic modules. Dust build-up on solar module surface is an issue of great worry, particularly in desert provinces where infrequent to regular dust storms do occur. The glass cover transmittance decreases because of accretion of dust on the surface of PV module, which ultimately decreases the amount of solar irradiation reaching the cells. The dust density of the surface, orientation, the tilt angle, exposure period, dominant wind direction, and site climatic conditions determines the reduction in glass transmittance. The density of deposited dust, the composition of the dust and its particle distribution determines the effect of the effect of dust on the power output and currentvoltage (I~V) characteristics of PV modules When PV modules are exposed to real outdoor condition for a long period, it was observed that the performance decreases gradually with dust build-up lest the modules are cleaned by rain or human action. The power output decreases by more than half if no cleaning is accomplished on modules that exceeds six months. Reduction in power output due to dust build-up does not depend only on the length of module exposure, but also on the occurrence and strength of dust. Subsequently, it is suggested that installed PV modules should be cleaned at least once in two weeks. Nevertheless, in the time when sandstorm occurs, immediate cleaning of the solar modules should be performed. It was observed that rainfall improved the power production of dusty solar modules, yet it cannot be trusted upon for cleaning since it is not foreseeable.
Design and development of solar panel cleaning system
Mantech Publications Pvt Ltd, 2019
The main method for harnessing solar power is with arrays made up of photovoltaic (PV) panels. Accumulation of dust and debris on even one panel in an array reduces their efficiency in energy generation considerably and emphasizes the need to keep the panel's Surface as clean as possible. In this Project a novel design is to be develop a AC current based automatic cleaning of solar panels. A tool is designed based on the array size, and water pumping/sprinkling mechanism is designed based on the amount/nature of dust accumulated. In terms of daily energy generation, the presented automatic-cleaning scheme provides about 30% more energy output when compared to the dust accumulated PV module.
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This paper describes the system which was designed and a developed prototype to clean off the dust from a PV module. Dust settlement on the PV module surface is one of the factors affecting the performance of PV module by obstructing solar irradiation incident on the module surface. By cleaning off the dust from muddle surface therefore improves the module output and ultimately improving even the overall performance of the PV system. The results show that with the system was able to respond to the low output level by wiping the surface of the PV module. The prototype assembly comprise of a programmed Arduino micro controller, a PV panel, wipers, battery and motors and artificial light simulating the sun. Further work will focus on developing real system since the prototype has proven that the system is viable. The work is still ongoing whereby a prototype will be built to demonstrate the practicality of the system.