An upper end fixed to the waterwall boiler drum, since the large amount of expansion is small bending Wall smaller capacity expansion compensation itself, so that the lower end is free to expand. Wall downward swelling amount can be calculated in advance based on the temperature and the material and height. If Stoke process water wall downward expansion value does not match with the design, may be blocked the downward expansion. Uneven heating or water wall, should try to eliminate, or will cause excessive thermal stresses within the waterwall tubes.

Energy Potential of Bagasse

Moisture contents is the main determinant of calorific value i.e. the lower the moisture content, the higher the calorific value. A good milling process will result in low moisture of 45% whereas 52% moisture would indicate poor milling efficiency. Most mills produce Bagasse of 48% moisture content, and most boilers are designed to burn Bagasse at around 50% moisture. Bagasse also contains approximately equal proportion of fibre (cellulose), the components of which are carbon, hydrogen and oxygen, some sucrose (1-2 %), and ash originating from extraneous matter. Extraneous matter content is higher with mechanical harvesting and subsequently results in lower calorific value.

A few months ago, Shandong Provincial People's Government issued the "Opinions on Further expand domestic demand and promote development of up short board", which refers to: As of 2020, invested 11 million yuan to complete 5.4 million renovation to replace it clean, let 55 % of villages to achieve clean heating.

In the "clean warm winter Shandong Province Planning (2018-2022 years)" is mentioned, in 2020 the provincial average clean heating rate of 70%, of which more than 20 million people in the city basically clean heating full coverage. 2022, the province's clean heating rate of over 80%. Among them, more than the city and county basically clean heating full coverage, the average clean heating in rural areas reached about 75%.

Jinan, Qingdao, Yantai City 3 converts kinetic energy as a province of old and new core area, to take the lead in forming an electrical heating alternatives such as clean coal-fired heating San basic pattern. Should be in accordance with the electrical power, should be renewable energy sources of renewable energy, the principle of the dispersed phase concentration and binding, while the priority of central heating, the positive development of other energy sources for heating air.

It is learned that, with central heating Hohhot foreign loan program continued with the completed and put into use, the city built-up area will further strengthen the centralized heating rate, gas hot water boiler to replace the coal-fired hot water boilers layer by layer, to become the first to Hohhot the region of central heating gas standard shape of the city.