Experimental and computational fluid dynamics simulation of performance analysis of steam generators of boilers

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Authors

  • Praveen Math

DOI:

https://doi.org/10.18311/ijprvd/2021/29369

Keywords:

Preheater, CFD, heat transfer coefficient, simulation technique.

Abstract

Poor air temperature in modern power plants is one of the main reasons for the increase in unit temperature and the deterioration of boiler performance. The main problem of the air preheater is the leakage of air on the side of the gas flue and thus lead to improper thermal performance. The
high ash content in Indian coal also adds to the problems associated with air tube heating. Air preheaters are designed to meet the operational requirements with consideration of the most impact parameters. heat transfer, leakage and pressure reduction. In the current work the performance of the air-conditioning heater is being tested with the help of the computational fluid dynamics (CFD)
Fluent 14.0 analysis tool.

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Published

2022-01-21

How to Cite

Math, P. (2022). Experimental and computational fluid dynamics simulation of performance analysis of steam generators of boilers. Indian Journal of Power and River Valley Development, 71(7&8), 109–111. https://doi.org/10.18311/ijprvd/2021/29369

Issue

Volume 71, Issue 7&8, July-August 2021

Section

Articles
Received 2022-01-21
Accepted 2022-01-21
Published 2022-01-21

 

References

References

Staseik J.A. (1998):

“Experimental studies of heat

transfer and fluid flow across

undulated heat exchanger

surfaces”, Int. J. Heat Transfer.

Vol. 41 Nos. 6-7, pp. 899-914.

Skiepko. T. (1989): “Effect of

reduction in seal clearances on

leakages in a rotary

heatexchanger”, Heat recovery

system CHP 9 (6), pp. 553-559.

Kumar, Rakesh, and Jain,

Sanjeev, (2006): “Performance

Evaluation of air pre heater at

off designcondition”, Dept of

Mech. Engg., IIT, New Delhi,

pp.1-4.

“Steam Book”, (2006): The

Babcock & Wilcox Company,

pp.20-7.

Kem, Donald (2004): “Process

Heat Transfer”, Tata McGraw-

Hill Publication, pp.701.

Skiepko, Teodor and Shah,

Ramesh K. (1989): “A

comparison of rotary

regenerator theory and

experimental results for an air

preheater for a thermal power

plant”, Rochester Institute of

Technology, Rochester, USA.

Skiepko, T. (1989): “Effect of

reduction in seal clearances on

leakages in a rotary

heatexchanger”, Heat recovery

system CHP 9 (6), 553-559.

Kumar, Rakesh and Jain,

Sanjeev (206): Performance

Evaluation of air pre heater at

Enhanced heat transfer coefficient of air preheater module off design condition”, Dept of

results in reducing flue gas temperature at the outlet of air

preheater. The modified design of the air preheater with tube

installation has resulted in an increase of 17 to 20% of the

temperature. CFD can be used as a tool to significantly reduce

lead times and costs for new projects. The velocity velocity

limits of the air preheater wind tunnel with detachable vans

and steering vans that show the speed profile in the airpreheater

space do not correspond to a separate phase

because the flow tends to be one-sided and the vans angle

needs to be further expanded to improve the flow pattern

within the trench.

Fig.7: Velocity vector contours of air preheater duct

Fig.8: Velocity vector contours of air preheater duct-side view

Mech Engg, IIT, New Delhi For books:

Gay, Rodney R. (204): “Power Plant Performance

Monitoring”, pp.433.

Saha, S.K.Saha and Dutta, A. (2001): “Thermo

hydraulic study of laminar swirl flow through a

circulartube fitted with twisted tapes” Trans. ASME

Journal of heat transfer, June, Vol-123/ pages 417-427.

Lin, Zhi-Min and Wang, Liang-Bi (2009): “Convective

heat transfer enhancement in a circular tubeusing

twisted tape” Trans ASME Journal of heat transfer,

JULY-AUGUST 2021

Aug ,Vol-131/081901-1-12.

Noothong, Wacharm, Eiamsa-ard, Smith and

Promvonge Pongjet (206): “Effect of twisted

tapeinserts on heat transfer in tube” 2nd joint

international conference on “Sustainable Energy and

Environment” Bangkok, Thiland.

Naphon, Paisam (2005): “Heat transfer and pressure

drop in the horizontal double pipes with andwithout

twisted tape insert” Elsevier Ltd.

Smith Eiamsa-ard, Smith, Thianpong, Chinaruk and

Promvonge, Pongjet (2006): “Experimentalinvestigation

of heat transfer and flow friction in a Circular tube

fitted with regularly spaced twisted tape elements”

International Communications in Heat and Mass

Transfer Vol.33, Dec.

Mazumdar,Ashis K., Saha, Sujoy K. (2008):

“Enhancement of Thermo hydraulic Performance

ofTurbulent Flow in Rectangular and Square Ribbed

Ducts With Twisted-Tape Inserts” Journal of Heat

Transfer August, Vol.130.

A Dewan, A, Mahanta, P., Sumithra Raj, K. and Suresh

Kumar, P.: “Review of passiveheat transfer

augmentation techniques” Proc. Instn Mech. Engrs

Vol. 218 Part A: J. Power and Energy, pages 509-527

S.S.Joshi et al. / International Journal of Engineering

Science and Technology (IJEST) ISSN

Staseik J.A., (1998): “Experiment al studies of heat

transfer and fluid flow across undulated heat

exchanger surfaces”, Int. J. Heat Transfer. Vol. 41 Nos.

-7, pp. 899-914.

T. Skiepko, T. (1989): “Effect of reduction in seal

clearances on leakages in a rotary heatexchanger”,

Heat recovery system CHP 9 (6), pp. 553-559.