How much electricity can a 5oo cubic meter biogas digester produce per day? I own a pig farm. The pi

1 kilowatt hour (1 kilowatt hour) has a calorific value of 3.6 MJ. The calorific value of biogas combustion at low temperatures is 20 to 25 MJ/m3. Generator efficiency is typically 30% to 40%. Suppose the efficiency is 35%. 500 cubic meters of biogas can provide a calorific value of 10,000 to 12,500 MJ, which is 100% converted into electricity produced by the generator, or approximately 2,777.8 to 3,472 kWh. Multiplied by the efficiency, the actual electricity that can be generated is 972 kilowatt hours ~~ 1,215.2 kilowatt hours. This is when the generator is at full load and cannot be used in most conditions. Brother, the kilowatt you are talking about is power. It depends on the power of the generator you choose. 1 kilowatt hour = 1 kilowatt times 1 hour. For 24 hours per day, divide 972 kilowatt hours by 24 to get 40.5 kilowatts. In other words, if you choose a generatorof 40.5 kilowatts and run it 24 hours a day, you can generate 972 kilowatt hours of electricity. You can request to be connected to the national grid, install a watt-hour meter and calculate your income based on the watt-hour meter. If you use it at home, it's really wasteful (it can't be used at all). The advantage of being connected to the electricity grid is that you can adjust the generator power so that the generator can run at full load, so you can use 972 kilowatt hours of electricity or 1,215.2 kilowatt hours of electricity as a source of electricity. 'energy. life counter. The income per day is 486 yuan to 607.6 yuan (calculated as 0.5 yuan per kilowatt hour), or 175,932 yuan to 221,774 yuan per year. The estimated market price of a 40 kilowatt generator is around 150,000, and it can. pays for itself in one year. The calculations above are all theoretical values. In fact, the gas contained inthe biogas digester is not necessarily entirely biogas, but also air, so the purity problem must be solved. A closed biogas pool can be used, and the overflowed gas can be used to generate electricity daily to ensure purity. Biogas swimming pools are also a source of danger. Fireworks must be prohibited within a radius of at least 50 meters, otherwise there is danger. risk of explosion. Adding fermentation materials is also problematic. Or you can use the village fundraising method to build this biogas power plant, and the profits will be shared proportionally, so you can reduce costs. In short, we have to think about equipment maintenance and infrastructure maintenance, which costs money. It's really a small profit for pig farming.