Design ,Construction, and Performance Test of Induced Draft Wet Counter Flow Cooling Tower

Abstract

A cooling tower is a heat rejection device that rejects waste heat to the atmosphere through the cooling of a water stream to a lower temperature. Cooling towers are used in all heat producing industries. Cooled water is needed for air conditioners, manufacturing processes, power generation and many other heat transfer related operations. The purpose of this thesis is to design a counter flow induced draft wet cooling tower with a view to analyze the performance of the cooling tower. There are two shapes of cooling tower rectangular and circular cooling tower. In our thesis we are going to design rectangular cooling tower named as induced draft counter flow cooling tower. Induced draft towers are typically mounted with a fan at the top of the cooling tower, which allows hot air out and pulls air throughout. The high exiting air velocities reduces the chance of re-circulation. 2D CAD model design is created by AutoCAD 2016 . Construction of induced draft cooling tower is made, with necessary components such as GP sheet with necessary steel structure for bearing the load of the tower . The size of this cooling tower is 4.67ft (1.42m) height and 1.25ft(0.381m) wide rectangular shape cooling tower. After finished the project collecting technical parameter data and after calculation result shows that the efficiency 55% for the hot water mass flow rate of 480kg/hr