What impact will efficiencies have on boiler performance?
Combustion Efficiency
Combustion efficiency is the effectiveness of the burner only and relates to its ability to completely burn the fuel. The boiler has little bearing on combustion efficiency. A well-designed burner will operate with as little as 15% to 20% excess air, while converting all combustibles in the fuel to thermal energy.
Thermal Efficiency
Thermal efficiency is the effectiveness of the heat transfer in a boiler. It does not take into account boiler radiation and convection losses - for example, from the boiler shell, water column piping, etc.
Fuel-to-Steam Efficiency
The term "boiler efficiency" is often substituted for combustion or thermal efficiency. True boiler efficiency is the measure of fuel-to-steam efficiency. ZOZEN guaranteed boiler efficiencies are fuel-to-steam efficiencies. Fuel-to-steam efficiency is calculated using either of two methods, as prescribed by the ASME Power Test Code, PTC 4.1. The first method is input-output, which is the ratio of BTU output divided by BTU input x 100. The second method is heat balance, which considers stack temperature and losses, excess air levels, and radiation and convection losses. Therefore, the heat balance calculation for fuel-to-steam efficiency is 100 minus the total percent stack loss and minus the percent radiation and convection losses. Fuel-to-steam efficiency is important, but that efficiency calculation does not take into account cycling and purge losses, operating levels, and other variables.
In-Service Efficiency
Fuel-to-steam efficiency is important, but that efficiency calculation does not take into account cycling and purge losses, operating levels, and other variables. More importantly, in-service efficiency—the amount of fuel you have to use to get the needed output, may be a truer measurement of the value of your system. We supply the highest in-service efficiencies on the market. Whether modular, a single boiler, or a hybrid, our cutting-edge designs combined with advanced controls provide the absolute lowest operating cost available.
-
SZS series gas-fired (oil-fired) steam boilerLive Chat2-110 t/h1.25-5.3 MPa
-
SZL series biomass-fired steam boilerLive Chat6-35 t/h1-2.5 MPa
-
SZL series coal-fired steam boilerLive Chat6-35 t/h1-2.5 MPa
-
Email us
-
WhatsApp: +86 18861589035
WeChat: +86 13506150756
Live Chat
-
According to data from the Economic and Commercial Office of the Embassy of the Republic of Indonesia, the pulp and paper industry in Indonesia is showing a promising development trend. In 2021, the export volume of the pulp and paper industry reached $7.5 billion, accounting for 6.22% of non-oil and gas exports and 3.84% of the domestic gross domestic product (GDP) of the non-oil and gas processing industry. In this thriving industry, ZOZEN Boiler, with its various coal-fired boiler models, has...23 Apr 2024
-
Modern manufacturing has surpassed the traditional concept of production and processing by incorporating services as an indispensable component. As a well-established industrial boiler manufacturer, ZOZEN Boiler has been implementing its after-sales service plan, the "Quality Miles Journey," since 2018. This initiative comprehensively assesses aspects such as service attitude of engineers, equipment quality, automation level, safety performance, and appearance, aiming to provide users with safe ...16 Apr 2024
-
Located in the Yangtze River Economic Belt, Jiangsu Province, with its 13 district-level cities all ranking among the top in China, has always been a manufacturing behemoth dedicated to the resource-efficient and environmentally friendly transformation of its economy, striving for comprehensive progress in both its economic and social fabric. A Jiangsu-based Enterprise—ZOZEN Boiler As a traditional cornerstone and vital sector for livelihoods within the province, the te...09 Apr 2024