zozen boiler
Home Service FAQs FAQ of coal-fired boilers What is the heat loss in the operation of coal-fired boiler?

What is the heat loss in the operation of coal-fired boiler?

04 Sep 2020

The heat transfer efficiency of coal-fired boiler is not ideal mainly because of its serious heat loss which mainly comes from five aspects. It is impossible to completely avoid the heat loss. However, it can be controlled via correct methods to reduce the heat loss and improve the heat transfer efficiency of coal-fired boiler.

The exhaust gas heat loss of coal-fired boiler is caused by the flue gas removed by final stage heat exchanger. The flue gas will take away a part of heat, mainly including the heat taken away by dry flue gas and the sensible heat with water vapor in the flue gas. What's more, if the combustible gas in the coal-fired boiler is not completely burned, there will be heat loss as well. Therefore, this kind of heat loss mainly depends on the content of incomplete combustion products in the exhaust smoke.

Now that incomplete combustion of combustible gas will cause heat loss, the incomplete combustion of solid in the coal-fired boiler will also cause a certain amount of heat loss. This kind of heat loss is mainly caused by the combustible ash and slag and pebble coal removed by medium speed coal mill.

In addition, there is also the heat dissipation loss involved in the coal-fired boiler because the furnace wall, metal structure, pipes and tubes will lose heat to the surrounding environment. Usually, the heat loss amount of coal-fired boiler is related to the heat load of boiler unit.

In addition to the above four kinds of heat loss, the physical heat loss of ash and slag is also a kind of heat loss of coal-fired boiler. It specifically refers to the percentage of sensible heat which is taken away when the slag, fly ash and settled ash are removed from the boiler equipment in the whole input heat. Therefore, the heat loss can be reduced if the fuel in the coal-fired boiler can realize sufficient combustion.

Related FAQs View More
Related news View More
  • ZOZEN Boiler: An Innovative Choice for Green Energy in the Pharmaceutical Industry
    In today's pursuit of health and environmental protection, the pharmaceutical industry is facing an energy revolution. Traditional steam boilers can no longer meet the industry's multiple demands for efficiency, environmental protection, and energy saving. Moreover, with increasingly strict environmental regulations and rising energy costs, pharmaceutical companies are becoming more cautious in their choice of boilers.   The pharmaceutical industry, a field related to life and health, has...
    19 Nov 2024
  • ZOZEN Biomass Boiler Brings Green Power for the Heritage and Innovation of Paper Industry
    In the heritage and innovation of traditional culture, China Xuan Paper Co., Ltd. plays an indispensable role. Xuan Paper, as an important medium for Chinese calligraphy and painting art, has extremely strict requirements for the environment and energy in its production process. With the company's development and the growth of market demand, the old boilers from the 1980s can no longer meet the increasing steam supply needs, making the selection of efficient and environmentally friendly steam bo...
    12 Nov 2024
  • ZOZEN Boiler Showcases at China Brew China Beverage 2024
    From October 28th to 31st, 2024, ZOZEN Boiler exhibited at the China Brew China Beverage 2024 (CBB 2024) held at the Shanghai New International Expo Center. As a benchmark exhibition for the entire industry chain of the liquid food industry in Asia, CBB serves as an important platform for ZOZEN Boiler to showcase its strength, expand its market, and promote international exchanges.   ZOZEN Boiler's Advanced Products Attract Wide Attention   At booth E1-D11, ZOZEN Boiler drew the ...
    05 Nov 2024

Find the Right Boiler For You

Name *

Email *

Products

Power/Capacity