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View project and guideProjects / Mechanical / Project 30
Mini Biogas Digester: Gas Yield vs Feed Ratio
Approx. component budget: Rs. 5,000 - 9,000
Objective
Compare daily biogas yield and gas pressure for different feed-to-water ratios and temperatures.
What you will build
A small digester drum, a floating gas holder or balloon, feed and outlet pipes, a pressure gauge and a gas flow or water-displacement measurement, fed with cow dung and kitchen waste slurry.
Results you can expect
- Gas volume per day vs feed ratio
- Effect of temperature
- Gas holder pressure
- Start-up time
- Gas yield per kg of feed
What you will learn
Anaerobic digestion basics, gas storage design and a practical waste-to-energy system.
Tools and notes
Gauges, thermometer, Excel. Biogas is flammable, so test outdoors, check every joint for leaks and keep flames away.
Resume points from this project
- Built and tested Mini Biogas Digester: Gas Yield vs Feed Ratio; objective: compare daily biogas yield and gas pressure for different feed-to-water ratios and temperatures.
- Measured and analysed gas volume per day vs feed ratio and effect of temperature; 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.
Get the Rs. 99 project guide
A short guide that helps you decide and prepare. It contains:
- A diagram of the project
- How it works, in simple words
- The main parts you will need
- What workshop or lab you need and how hard it is
- Results you can expect
- Viva questions you should be able to answer
We send the PDF on WhatsApp after your payment is confirmed. Payment details are shared in the chat.
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