Review  on the Enhancing the Heat Transfer Rate in the Air Heater by Modifying the Design

Yashvardhan Singh Baghel; Shivendra Singh; Pankaj Shrivastava

doi:10.37628/ijmd.v9i2.1597

Review on the Enhancing the Heat Transfer Rate in the Air Heater by Modifying the Design

Yashvardhan Singh Baghel, Shivendra Singh, Pankaj Shrivastava

Abstract

An overview of the research on air heat exchangers and solar air heaters is given in this work. The goal of the review is to promote discussion and evaluation of the researchers' results. The paper includes extensive descriptions of several types of air heaters, air heat exchangers employing electrical heaters and other technologies, and solar air heaters with different absorber plate surface geometries to increase the rate of heat transfer. The best combination of low cost design flexibility, good machinability, high strength-to-weight ratio, good toughness, good wear resistance, and fatigue strength is provided by austempered ductile iron (ADI). Because it has all the benefits of ductile iron casting plus mechanical properties that are superior to all cast irons and most steel forging and casting due to a unique heat treatment process, austempered ductile iron (ADI) offers this exceptional combination of properties. Numerous air heater designs—especially those involving phase change materials—have been reported with and without heat storage components. Increased surface fins on the heater tube to increase the temperature of the air while it's running. As a result of their expanding range of applications, air heat exchangers are growing in popularity.

Keywords

Heat transfer, chimney, primary heater, secondary heater, split plate.

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References

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DOI: https://doi.org/10.37628/ijmd.v9i2.1597

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