As society’s increasing demand for energy, petrochemical fuels as the main source of energy are rapidly decreasing. Therefore, the search for a renewable alternative energy source has become the focus of general concern in society. Biomass energy is an ideal renewable energy source. It has a wide range of sources, and a large amount of industrial, agricultural and forest waste is produced every year.
In the current world’s energy consumption, biomass energy consumption accounts for 14% of the world’s total energy consumption, second only to oil, coal and natural gas, ranking fourth. Renewable resources such as straw, rice husks, palm husks, peanut husks, and other biomass are very abundant in our country. Replacing or partially replacing coal combustion with them not only brings rich economic returns for enterprises, but also increases the income of the majority of farmers. On the other hand, biomass energy is a kind of clean and renewable energy, and SO2 emissions are close to zero. Therefore, the use of biomass energy has an important role in protecting the environment, improving ecology, and improving farmers’ living standards.
Biomass fuel is directly used as boiler fuel, which is also an effective way to utilize biomass energy. In recent years, biomass boilers have developed rapidly in China.
Calculation of biomass pellet fuel combustion boiler consumption, biomass stove consumption per hour = 600,000 kcal * tonnage / fuel calorific value / boiler combustion efficiency. Take the problem of how much fuel a 10-ton straw steam boiler consumes per hour, for example, one ton is 600,000 kcal. Assuming that the fuel heat is 4000kcal and the boiler thermal efficiency is 85%, then a 10-ton biomass-fired pellet boiler requires fuel for 1 hour The amount is 600,000 * 10/4000/85%, about 1800kg / h.
Calorific value of various biomass fuels:
|Biomass Fuel||calories per kilogram (kJ)||calories (kcal)||
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