Projects / Mechanical / Project 25

Single-Slope Solar Still with Wick and Reflector

Approx. component budget: Rs. 4,000 - 8,000

Objective

Measure how much clean water the still gives per day and how the wick, water depth and reflector change the output.

What you will build

A glass-covered still with a blackened basin, a wick or fin plate, an optional mirror reflector, a collecting channel and a measuring jar, next to a plain still for comparison.

Results you can expect

• Distillate per day (litres per square metre)
• Efficiency
• Effect of water depth
• Wick and reflector
• Water quality before and after (TDS)

What you will learn

Evaporation and condensation, solar heat gain, water treatment, and a low-cost solution for rural areas.

Tools and notes

Thermometers, measuring jar, TDS meter, Excel. Test on several sunny days. Use food-grade materials if the water will be used.

Resume points from this project

• Built and tested Single-Slope Solar Still with Wick and Reflector; objective: measure how much clean water the still gives per day and how the wick, water depth and reflector change the output.
• Measured and analysed distillate per day (litres per square metre) and efficiency; wrote the report and presented the results in a viva. Add your own numbers: [x].

Replace [x] with your own measured results. Write only what you really did.

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