Effect of Dust on the Performance of Solar Water Collectors in Iraq

Khalil Ahmed, Omer
February 2016
International Journal of Renewable Energy Development;Feb2016, Vol. 5 Issue 1, p65
Academic Journal
In the dusty climate conditions, the dust accumulation on the front surface of solar collectors reduces collector efficiency. There is little research about it in present literatures in Iraq. So the effect of dust accumulation on the performance of conventional of solar collectors is analyzed. The experimental study was carried out mainly on a flat solar collector, which comprised the major part of this work. According to the experimental results obtained, there is a limited decrease in the instantaneous efficiency which was 1.6 % for the dirty collector. At load condition, the outlet temperature reaches a maximum value of 43.85°C at 12 noon without dust on the front glass and 33.7 °C in the presence of the dust. The instantaneous efficiency reaches its maximum value of 49.74 % at 12 noon without dust and 48.94% with dust after that the efficiency was decreased. The variation of useful transferred energy closely follows the variation of solar intensity and reaches its maximum value of 690 W/m² at 12 noon in the presence of the dust for this particular day. It is also observed that, at the second half of the day, there is a large decrease in the instantaneous efficiency resulting from a large reduction in the useful energy transferred. Therefore, for Iraqi places, daily cleaning of the glass covers is strictly recommended as part of the maintenance works but the equipment should be cleaned immediately after a dust storm to keep the collector efficient.


Related Articles

  • Influence of dust and mud on the optical, chemical, and mechanical properties of a pv protective glass. Yilbas, Bekir Sami.; Ali, Haider; Khaled, Mazen M.; Al-Aqeeli, Nasser; Abu-Dheir, Numan; Varanasi, Kripa K. // Scientific Reports;10/30/2015, p15833 

    Recent developments in climate change have increased the frequency of dust storms in the Middle East. Dust storms significantly influence the performances of solar energy harvesting systems, particularly (photovoltaic) PV systems. The characteristics of the dust and the mud formed from this dust...

  • Cost of Solar Energy Plummets. Chiras, Dan // Mother Earth News;Apr/May2012, Issue 251, p14 

    The article focuses on the prices of environmental friendly solar energy. While the prices of conventional fuels is rising, the price of solar power is continuing to fall. In last two years, the cost of a residential solar power system has dropped to 40 percent in U.S. Solar electricity and...

  • Exploring the Economic and Environmental Benefits of Solar Energy Generation in Developing Countries: The Nigerian Perspective. Oisamoje, Michael D.; Oisamoje, Esther Eguono // Journal of Energy Technologies & Policy;2013, Vol. 3 Issue 6, p23 

    Fossil fuels are the main sources that are being used to produce energy today. They are not only fast depleting but they are also polluting the environment, and affecting the economic stability of many countries. While renewable energy has been spoken about for more than three decades, fossil...

  • Don't despair over climate change; we have options. Beale, William // Athens News;4/14/2014, p8 

    The article presents the author's views on the impact of the climatic changes. The author comments on the choice available to use solar energy and go green with reference to a zero-energy demonstration house at the University of California. The author states that it is a good news that the solar...

  • Partly Sunny for Residential Solar. Breggin, Linda K. // Environmental Forum;Mar/Apr2012, Vol. 29 Issue 2, p10 

    The article focuses on the author's views about the installation of solar panels at residential homes in the U.S. The goals of residential solar power are highlighted which include energy independence, improved air quality and to address climate change. According to the author, the cost of the...

  • Estimating the Size of the Renewable Energy Generators in an Isolated Solar-Biodiesel Microgrid with Lead-Acid Battery Storage. Alin, GRAMA; Toma, PATARAU; Eniko, LAZAR; Dorin, PETREUS // Journal of Electrical & Electronics Engineering;Oct2015, Vol. 8 Issue 2, p15 

    Climate change, fossil fuel decline, expensive power grid extensions focused the attention of scientist in developing electrical power systems that use as primary resources renewable energy generators. Romania has a high renewable energy potential and presents interest in developing renewable...

  • USAGE OF SOLAR ENERGY SYSTEM FOR ECONOMIC AND CULTURAL MANAGEMENT AND REVIVAL OF THE GREAT DESERT OF IRAN. Omidian, Safieh; Oskooi, Behrooz; Abbaspour, Karim // Proceedings of the International Multidisciplinary Scientific Ge;2011, Vol. 3, p131 

    Iran is a country with an area of 1,648,198 Km² in the Middle East. When it comes to sun, there are 300 days of pure high UV sunshine in 95% of the country. There is a triangular great desert from center to the East of Iran, which due to its position receives a large amount of solar energy....

  • We can do this: 10 reasons there's hope for our climate. Upham, Dan // E THIS WEEK;7/14/2014, p4 

    The article focuses on reasons to be pessimistic about turning toward climate stability. There is a drop of 75-percent in the price of solar panels since 2008, and the U.S. added more solar capacity in the past 18 months than in the previous 30 years combined. China has set up seven pilot...

  • Feedback. Wellock, Luke; Farren, Nigel // Green Futures;Jul2010, Issue 77, p47 

    Several letters to the editor are presented in response to articles in previous issues including "The light at the end of the desert,"Save the forest, wear a condom," and "If climate change didn't exist, would we have to invent it."


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics