Use biogas to run a generator

The research group of the Institute of Engineering Engineering and the Robot-CAPIT Division of the Ministry of Defense in collaboration with the Center for Thermo-Hydrology-Gas-Kinetics of Hanoi University of Technology has implemented a biogas project. from pig manure source for the purpose of running small capacity generators.

Small capacity generator of biogas research group (Photo: Nhandan)

The project is a system that includes: Biogas-producing biogas reactor (including a compost tank for biogas, can be built with bricks, reinforced concrete, durable plastic or plastic bags, cylindrical, bridges and rectangles depending on specific conditions) piping system of organic waste into charging tank, manhole, discharge pit, air duct to generator or stove.

The biogas generator can use a gasoline generator to run on biogas but must first improve the ignition of the machine, add an air and biogas mixer to the apparatus. Air-conditioning of gasoline engines.

Using a four-stroke, gasoline-powered engine, it is possible to improve the specialized generators available on the market, or it is possible to make recycled generators by using existing car engines available on the market. school Biogas has a calorific value of 4700-6500 kcal / m ³ , useful heat of 1m3 is equivalent to 0.96 liters of oil; 4.7kwh of electricity; 4.37 kg of firewood or 6.10 kg of straw. The output of biogas digester is a good source of fertilizer (protein rich waste (NH ⁴⁺ )).

When using biogas to run generators, cooking or lighting will create a perfect fire mixture, prevent better detonation of gasoline, do not destroy machine oil, reduce harmful components in exhaust gas (CO, CH _x , NO _x , .).

The work applied in some households in Vu Hoi, Vu Thu and Thai Binh communes gave good results. Electricity powered by small power generators is not only enough for households to light, use in daily life but also run water pumps. The research team is implementing systems for pig farms in Ba Vi and Ha Tay districts.