The Van region has a large Kurdish population, and the Van cat has been referred to as the Kurdish cat or Kurdish Van cat, and made a symbol of Kurdistan in Kurdish nationalist circles.
Each cubic meter (m 3) of biogas contains the equivalent of 6 kWh of calorific energy. However, when we convert biogas to electricity, in a biogas powered electric generator, we get about 2 kWh of useable electricity, the rest turns into heat which can also be used for heating applications. 2 kWh is enough energy to power a 100 W light bulb for 20 hours or a 2000W hair dryer for 1 hour.
However, purified biogas can be compressed at a standard pressure of 200bar. You can talk in kgs after it has been successfully compressed into a cylinder. The method to calculate: - 1 cow will give about 10kg of dung per day, which will help produce 1m3 of raw Biogas. 1m3 of biogas from cow dung = 0.6m3 of purified CNG