International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 09 Issue: 08 | Aug 2022
p-ISSN: 2395-0072
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The Wind Load Analysis on Chimney With Different Designs Using CFD Sumit Dabla 1, Mr. Sitender2 1Research
Scholar, Department of Civil Engineering, GITAM Kablana, Haryana, India Professor, Department of Civil Engineering, GITAM Kablana, Haryana, India ---------------------------------------------------------------------***--------------------------------------------------------------------different zones i.e. zone 2, zone 3, zone 4. The FEA results Abstract - The heavy winds tend to cause damage on civil 2Associate
have shown that shear force is maximum near the steel stacks.
structures. The current research investigates the wind load analysis on chimney with different designs using CFD. The design and simulation of chimney is conducted using ANSYS software. From the CFD analysis, the pressure distribution and velocity distribution plots are generated for both designs of chimney i.e. chimney with sharp edge and chimney with smooth edges. The pressure induced on chimney structure is evaluated and the CFD results have shown that filleted chimney structure has significantly lower induced pressure as compared to sharp edged chimney.
Nimisha Ann Sunny et al (2017)[4] have conducted research on interaction of building with soil under different types of loading conditions. The research was conducted using ANSYS simulation package and the research findings have shown that pile raft foundation has significant effect on building deformation under high wind loads. Rakshith B D et al (2015) [5] have conducted research on cantilever steel chimney using Staad pro simulation package. The analysis is conducted as per different Indian codal provisions. Two different chimneys were analysed i.e. the chimney with manhole and chimney without manhole. Different output parameters related to structural parameters were evaluated.
Key Words: Aerodynamics, chimney design, Drag force 1.INTRODUCTION The chimney structures are used in thermal power plants, chemical plants, plastic units. The chimney elevations have gone up progressively from 100 m to more than 400 m due to the high demand of pollution control. Chimneys have “unique geometrical features of slender dimensions and tapering geometry and, therefore, the analysis and design of such kind of structure should be treated separately from other forms of tower structures. These tall chimneys are very sensitive to wind loads” [7].
B. R. Jayalekshmi et al (2015)[6] have conducted research on 300m high chimney. The soil structure interaction analysis along with wind load is conducted on chimney using ANSYS FEA simulation package. The analysis was conducted as per IS:4997 codal provisions. From the FEA analysis, the chimney responses were evaluated i.e. deformation, stresses, bending moment etc. which accounted for more than 73% of total cases.
2. LITERATURE REVIEW
3. OBJECTIVES
Kalpesh Dhopat et al (2018)[1] have conducted research on steel chimneys using FEA tool. The FEA tool used for the analysis is Staad Pro and the wind load conditions are applied on the chimney as per IS 6533 and IS 1893 codal provisions. The effect of geometric parameters are investigated.
The current research investigates the wind load analysis on chimney with different designs using CFD. The design and simulation of chimney is conducted using ANSYS software.
4. METHODOLOGY
Kalagouda R Patil et al (2017)[2] have conducted research on different designs of chimneys as per different codes of Indian. The chimney heights are varied and the FEA analysis is conducted using Staad pro and ANSYS simulation software. The “author had taken a practical case study and carried out design calculations by using the rules of codes viz., IS: 4533 part 1 and 2, IS: 875 part-3, IS: 1893 part1 and 4. Further to get full insight into the design of the steel stacks, a complete 3-D finite element analysis was carried out by using ANSYS software” [2].
The model of chimney is developed and imported in design modeller of ANSYS simulation package. The chimney model is enclosed using enclosure as shown in figure 2. The enclosure is modelled with 10m*10m*10m dimensions.
M. Pavan Kumar et al (2017) [3] have conducted numerical investigation on chimney under different wind loading conditions. The analysis of chimney was conducted for
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