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Solar oven introduction
 

Solar oven introduction

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    Solar oven introduction Solar oven introduction Presentation Transcript

    • Energy and Deforestation Grade 9 Shekou International School November 2011
    • What is deforestation?
      • The conversion of forest to another land use or the long-term reduction of the tree canopy cover below a 10 percent threshold. Deforestation implies the long-term or permanent loss of forest cover and its transformation into another land use.
      • http://www.globalchange.umich.edu/globalchange2/current/lectures/deforest/deforest.html
    • What are the causes of deforestation? Rainforest alliance 1999
    • What is fuel wood?
      • Wood or plant material that is gathered and used to cook food or provide heat for homes.
      http://www.csmonitor.com/var/ezflow_site/ storage/images/media/images/012010 -haiti-environment-deforestation/7243026-1 -eng-US/012010-haiti-environment-deforestation _full_600.jpg
    • Haiti: One country’s story
      • Haiti is one of the poorest countries in the world, ranked 167/183 by International Monetary Fund (2010) by per capita GDP $1,167 USD). Compare this to: US ($46,860); Hong Kong ($45,944); Australia ($39,764); France ($33,910); South Korea ($29.997); Israel ($29,602); Brazil ($11,273); South Africa ($10,518); and China ($7,544)
      • People need to cook food and heat their homes what fuel will they use?
    • Haiti: One country’s story
      • It is estimated that Haitians use at least 4 million tons of wood annually, 33% of which is transformed into charcoal, chiefly for cooking purposes (2007 ESMAP)
    • Alternatives?
      • Try solar ovens !!
    • The project
      • You and a partner (more on that later) will work together to design and build a solar oven that is capable of cooking food!!
      • You will have 3 attempts to get the temperature inside the oven to exceed 100° C, the minimum temperature for cooking.
      • Once we are done, you will cook your lunch inside it!