International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 11 Issue: 03 | Mar 2024
p-ISSN: 2395-0072
www.irjet.net
Experimental Research & Numerical Analysis in Heat Recovery Generator Dattatraya Balasaheb Kad 1 1Lecturer, Department of Mechanical Engineering, Sharadchandra Pawar Institute of Technology
Someshwarnagar Baramati Pune, Maharashtra, India ---------------------------------------------------------------------***--------------------------------------------------------------------the boiler tube is affected by the many variables such as Abstract - A boiler is a container in which a fluid is heated until it changes into vapor or a high-temperature liquid. Heat is supplied in boilers through convection, radiation and conduction. There are two types of boilers: fire tube boilers and water tube boilers. Here, we analyzed a water tube boiler. It is very essential to optimize and study the heat transferring mechanism and their characteristics to study & also control the various thermal losses. In this work internal flow analysis of a super heater is done to study the heat transfer characteristics of super heater using a Computational Fluid Dynamics (ANSYS- FLUENT) package. The CFD analysis provided fluid velocity, temperature, pressure, and wall fluxes, and especially we have concentrated on the inlet to outlet of the super heater of a boiler pressure drop. The Computational Fluid Dynamics (CFD) approach used here to solve many boiler problems such as pressure drop, parametric study and heat losses of super-heater analysis helped to study the possibilities of improve the heat transfer properties.
mass flow rate of steam (kg/s), steam temperature, feed water pressure & temperature. If we increase the mass flow rate of steam through the boiler tube, then there will be a decrease in temperature on the inner tube wall. Computer simulation is used to understand the thermal flow in the boiler, solve operational problems, and search for optimal solutions. The thermal flow behaves inside the boiler was studied to make the study of heat transfer characteristics and minimize the all thermal losses. The work study performs a detailed simulation of combustion and thermal flow behaviour inside the sugar factory boiler. Actual Working Conditions
Key Words: CFD, Wall fluxes.
1. INTRODUCTION The boiler is the device of a power plant that generates steam by burning available fuels used for power generation. The super heater can work as the heart of any boiler system. Continuous supply of the desired amount of steam at the rated pressure and temperature is the main work of it. Super-heater is the heat exchanger in which heat is transferred from furnace gas to the steam, Because of the improper heat transfer between furnace gas & steam leads to problems of heating. It reduced performance, repetitive failures in boiler component are common problem related to any type of boiler system. Super heater tube damage is very common issue in boilers. In this work we have done CFD analysis of super heater flow to study thermal parameter, to study and investigate the enhancement in heat transfer characteristics. Temperature distribution in the water tube boiler performs various efficiency testing and simulation of thermal flow inside in sugar factory boiler, The analysis of the temperature distribution for any location inside the domain is conducted by setting the constant temperature and varying parameters such as mass flow rate of steam (kg/s), steam inlet temperature and depth of scale formation. The commercial CFD software used to control volume based technique to convert the various governing equations, which are solved numerically using the implicit method. The temperature distribution in © 2024, IRJET
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Impact Factor value: 8.226
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Fig.1.1 Actual photograph of Steam drums of a super heater
Fig.1.2 Actual photograph Super heater tubes of a boiler The existing super heater of a boiler is manufactured by Walchandnagar Industries Ltd. and assembled by Hi-Tech Engineering Corporations for the Shrinath Mhaskoba Sakhar karkhana Pvt. Ltd. Patethan Tal: Daund, Dist:Pune-412104. This plant has capacity of 70 Tons/hr. In this sugar factory there are two types of superheating coils primary coils and secondary coils. Heated water and steam from the heating pipe is enters in the steam drum as shown in fig 1 and there is separator in the steam drum so that water and steam is ISO 9001:2008 Certified Journal
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