zozen boiler
Home Service FAQs Boiler basics What is a combustion air preheater?

What is a combustion air preheater?

22 Nov 2019

The combustion air preheater is definitely one of heat exchanger applications. Based on Figure 1 below, flue gas simply leaves steam boiler and passes via air preheater. The combustion air is passed through this equipment too to increase its temperature before being combined with boiler fuel.

Because the temperature of combustion air is lower than the temperature of flue gas, combustion air receive heat transfer from flue gas through combustion air preheater in the process of convection heat transfer. The heat transfer make temperature of flue gas lower and consequently minimizes its heat loss and also decreases the air temperature to stack. The additional heat throughout the combustion air going into boiler furnace improves the process of combustion. This decreases the fuel need in quantity equivalent in the value of heat to quantity of heat which have been taken in the application of heat exchanger such as combustion air preheater, therefore increasing efficiency.

Through the utilization of air preheater application, about 1 % of fuel is unspent for every single 40 F go up in the temperature of combustion air.

图片1

Figure 1: Combustion Air Preheater
(Source: Book-Boiler Control System Engineering-G.F Gilman)

Related news View More
  • New Interpretation of Visa-Free Transit Policy - Invites You to Explore ZOZEN Boiler
    As globalization continues to advance, China embraces the world with an open stance. Recently, the Chinese government has introduced a series of policies and measures to facilitate the entry of foreign personnel into China. At the press conference held by the State Council Information Office on August 19th, the National Immigration Administration introduced policies to facilitate the entry of foreigners into China. The policy indicates that 41 open ports in 19 provinces (autonomous regions, muni...
    29 Oct 2024
  • ZOZEN Boiler Shines at the 2024 East China Biomass Energy Association Annual Meeting
    On October 19, 2024, the East China Biomass Energy Association successfully held its annual event at the Platinum Hanjue Hotel in Wuxi, attracting 120 elites from the biomass energy industry. ZOZEN Boiler, with its strong corporate strength and innovative biomass boiler products, became the focus of the event, further enhancing ZOZEN Boiler's brand influence in the industry.   The conference was jointly initiated by Suqian Jinkai Biotechnology Co., Ltd., Jiangsu Jingmao Thermal Energy Tec...
    22 Oct 2024
  • Guizhou Guotai Liquor Partners with ZOZEN Boiler Again
    In Maotai Town, a small town famous for its liquor, Guizhou Guotai Distillery has become a shining pearl of Chinese sauce-flavored baijiu with its profound cultural heritage and exquisite brewing craftsmanship. Guotai Distillery has successively chosen the WNS series gas-fired steam boilers from ZOZEN Boiler, thereby carrying a deep brewing culture and achieving significant success in intelligent brewing technology. Integrating WNS Series Gas-fired Steam Boilers into Brewing Process Integrat...
    15 Oct 2024

Find the Right Boiler For You

Name *

Email *

Products

Power/Capacity