International Journal of Engineering Research ISSN:2319-6890)(online),2347-5013(print) Volume No.4, Issue No.4, pp : 216-221 01 April 2015 IJER@2015 Page 216 Numerical Analysis and Experimental Verification of an Industrial Cleaner Jayapragasan C N , Dr. K Janardhan Reddy VIT University, Chennai, India. jayapragasan.cn2013@vit.ac.in, kjanardhanreddy@vit.ac.in Abstract: Cleaner blowers play an important role in the proper functioning of fluffs collection system for industries. In this paper an industrial blower with three different volute geometries is investigated by using Computational Fluid Dynamics (CFD). And then two new volute geometries are modeled and analyzed based on the air flow through the blower. The numerical investigation revealed that the blowers with modified volute geometries have better outlet velocities. For this work, volute is modeled using Solid Works and meshed in ICEM CFD. The post processing is carried out using CFD POST. The results obtained were then validated and compared the experimental values of the different models of the blowers. Keywords- Centrifugal fan, Volute geometries, Computational Fluid Dynamics (CFD), Experimental methods I. Introduction Cleaner main aim is to deliver the air with an appreciable rise in pressure to overcome resistance in the flow and they can achieve high pressures. The industrial cleaners are used to keep the inside the plant and overall machines clean by travelling over the machinery. These Cleaner blowers suck the air from the inlet and discharge them through the outlets in order to clean the machines and maintain the quality of the product. Parts like fan, volute geometry, vane angle and vane type have an effect on performance of the cleaner. Volute is a passage located around the fan which collects the flow from the fan and delivers at the exit attachment. Volute geometry is one of the main performance parameter of a cleaner and it is varies based on the need of discharge. In volute, tongue geometry and radial distance between impeller and volute are general performance parameters. In this paper, the cleaner construction was analysed to by modifying the volute design of the cleaner blower and aimed to compare the analytical and Experimental results to conclude the performance of an industrial cleaner. Fig. 1 Cleaner without volute (a) (b) Fig. 2 (a) Cleaner with Partition plate (b) Cleaner with Volute After modeling blower with three different volutes, the parts are simplified using ICEM for sake of meshing. Two fluid domains are modeled one around the impeller and other one in the casing. Impeller is defined as a solid domain. The 3D CAD models are imported into ICEM CFD software for meshing. Notation Nomenclature used CFD Computational Fluid Dynamics rpm Rotations per minute mm millimeters m meters MRF Moving Reference Frame mmwc Millimeters of water column Q Discharge D Outer diameter of impeller N Fan speed PTF Total pressure developed by fan m/s Meter per second cfm Cubic feet per meter P s Suction Pressure Table. 1 Geometrical dimensions of the designed blowers S.no Parameter Dimension 1 Impeller diameter 380mm 2 Inlet diameter 180mm 3 Outlet dimensions 250X78mm (Dia 122 mm Outlet) 4 Impeller rotational speed 383.27 rad/sec 5 Blower casing 550X550X106mm 6 Partition plate dimension 313X106mm 7 Volute diameter 440mm II. LITERATURE SURVEY Lot of research is done on areas like impeller design, volute geometry, vane angle and vane type and their effect on the