What does q4 mean in the boiler system?
In the combustion process of solid fuel, some fuel often leaves the boiler with ash or fly ash without burning. This part of heat loss is called the heat loss of incomplete combustion of solid, which means q4 in boiler.
According to the inverse balance calculation formula of boiler thermal efficiency, the thermal efficiency of the boiler is equal to the calorific value minus various heat losses. For the boiler with solid fuel, the heat loss of solid incomplete combustion is the main heat loss in the total heat loss. Generally, the more ash there is, the more combustible materials will be caught in the ash, and the greater the heat loss will be.
ZOZEN Boiler takes many measures to control q4 to improve thermal efficiency
As a professional boiler manufacturer, ZOZEN Boiler not only needs to know what q4 stands for in the boiler, but also designs a reasonable furnace structure to make the fuel have enough residence space in the furnace, strengthen the mixing of fuel and air, and effectively reduce the heat loss of solid incomplete combustion. The actual measurement shows that the thermal efficiency of ZOZEN coal-fired boiler is over 82%, that of biomass boiler is over 88%, and that of circulating fluidized bed boiler is over 89%, which is generally superior to similar products.
-
DZW series biomass-fired reciprocating grate steam boilerLive Chat15-35 t/h1.25 MPa / 1.6 MPa / 2.5 MPa
-
DZL series biomass-fired steam boilerLive Chat2-10 t/h1-2.5 MPa
-
DZL series coal-fired steam boilerLive Chat2-10 t/h1-2.5 MPa
-
Email us
-
WhatsApp: +86 18861589035
WeChat: +86 13506150756
Live Chat
-
In Weihai, Shandong, the fish meal industry serves as a vital pillar of the local economy, now facing increasingly fierce market competition. Amid this landscape, enterprises are eager for energy solutions that are not only efficient and eco-friendly but also cost-effective. At this crucial moment, the ZOZEN triple drum biomass boiler has made a strong entrance, opening new paths for the local fish meal enterprises. ZOZEN Triple Drum Biomass Boiler: Paving a New Way for Fish Meal Enterprises ...24 Jun 2025
-
As global attention toward sustainable development intensifies, green and eco-friendly practices have become the main theme across all industries. For traditionally high-energy, high-emission sectors, technological innovation is essential to achieve clean production and unlock new growth. The plastic foam industry, a vital part of industrial manufacturing, has long faced the dual challenges of high energy consumption and environmental pressures. The emergence of biomass boilers offers a new gree...17 Jun 2025
-
With the ongoing advancement of the “Belt and Road” Initiative, economic and trade cooperation between China and Kyrgyzstan has become increasingly close. In February 2025, the two countries announced the launch of negotiations on a service trade and investment agreement, injecting new momentum into their bilateral collaboration. Against this backdrop, Chinese industrial equipment is making its way into Kyrgyzstan, helping local businesses grow—ZOZEN Boiler stands out as an exe...10 Jun 2025