solar utlization lec 21 solar distilation

solar utlization lec 21 solar distilation - Solar...

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1 Solar Utilization H. A. . . Ingley PhD,PE Solar Distillation A very small percentage of the world’s population has adequate, safe drinking (potable) water. Conventional water purification systems are expensive to purchase and operate. Solar distillation has been in practice for many years, e.g. an 1872 solar distillation plant in Chile produced fresh water for over 40 years using 4740sq meters of land, producing 23,000 liters of fresh water per day.
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2 Solar Utilization H. A. . . Ingley PhD,PE Typical shallow basin-type still specifications: 1.5 m wide and 2 to25 m long Slope of glazing cover 10 – 15 degrees (trade offs) 0.2 m thick layer of water in tray Well insulated-black absorber tray Good quality low, iron content glass (tempered?) α s,t Τ s,g T s,w I s = to 0.8 is typcial I s 10 to 15 deg Black surface
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3 Solar Utilization H. A. . . Ingley PhD,PE Review energy balances on page 395-396 of text. With I
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solar utlization lec 21 solar distilation - Solar...

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