Solar oven introduction

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Solar oven introduction

  1. 1. Energy and Deforestation Grade 9 Shekou International School November 2011
  2. 2. What is deforestation? <ul><li>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. </li></ul><ul><li>http://www.globalchange.umich.edu/globalchange2/current/lectures/deforest/deforest.html </li></ul>
  3. 3. What are the causes of deforestation? Rainforest alliance 1999
  4. 4. What is fuel wood? <ul><li>Wood or plant material that is gathered and used to cook food or provide heat for homes. </li></ul>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
  5. 5. Haiti: One country’s story <ul><li>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) </li></ul><ul><li>People need to cook food and heat their homes what fuel will they use? </li></ul>
  6. 6. Haiti: One country’s story <ul><li>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) </li></ul>
  7. 7. Alternatives? <ul><li>Try solar ovens !! </li></ul>
  8. 8. The project <ul><li>You and a partner (more on that later) will work together to design and build a solar oven that is capable of cooking food!! </li></ul><ul><li>You will have 3 attempts to get the temperature inside the oven to exceed 100° C, the minimum temperature for cooking. </li></ul><ul><li>Once we are done, you will cook your lunch inside it! </li></ul>

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