Design & Performance Enhancement of Induced Draft Counter Flow Wet Type Cooling Tower (original) (raw)

Analysis Studying For Improving Cooling Tower

Kirkuk University Journal-Scientific Studies, 2016

The present investigation includes a detailed study of the proposed equation for counter flow wet cooling tower using Merkel and Poppe models to show the difference and solutions techniques of the proposed models. A mathematical model has been suggested to construct computer software MATLB R2013 program for simulation of natural draft wet cooling tower for summer (hot and dry) and winter (cold and wet) weather according to Iraqi weather. The fill height changed from (0.2-1.4)m at different water inlet temperature (37 ، 40 ، 45) o C and constant mass flow rate of air .It was found that the range of cooling increases when the fill is high and the cooling range ,relative humidity ,cooling approach ,air temperature change are higher at winter than at summer while the effectiveness and enthalpy change show higher value at summer than winter. Also the mass flow rate of water changed from(1-7.5) kg/s with water inlet temperature 45 o C with constant fill height 1.2 m the result obtained show that tower range ، air temperature change ,are higher in winter than at summer where the enthalpy change and effectiveness show higher values at summer than at winter which matches with the other experimental researches.

Experimental Study of the Performance of Cooling Tower

Cooling tower is an essential component of air conditioning plant, chemical plant etc. It is used to reduce the temperature of hot water stream by using outside air and thus heat is rejected to atmosphere .This paper includes the working principle of cooling tower and a set up is fabricated and various parameters related to cooling tower is calculated i.e. range, approach, effectiveness and evaporation loss. Validation of practical model is done using empirical relation. Various equations i.e. Modified Apjohn equation, Modified Ferrel equation and Carrier equation are provided. Carrier equation is used for determining vapour pressure and thus humidity ratio and finally which can be used to determine evaporation loss.

IJERT-Analysis of Counter Flow Induced Draft Cooling Tower using Taguchi Method

International Journal of Engineering Research and Technology (IJERT), 2015

https://www.ijert.org/analysis-of-counter-flow-induced-draft-cooling-tower-using-taguchi-method https://www.ijert.org/research/analysis-of-counter-flow-induced-draft-cooling-tower-using-taguchi-method-IJERTV4IS060473.pdf Cooling tower is a very important unit of most of plants. The capital and operating cost is often very high so we require optimizing the performance parameters of cooling tower. This work proposes the application of Taguchi method to achieve maximum cooling of outlet water of counter flow induced draft cooling tower. The experiments were planned based on Taguchi's L9 orthogonal array. The trail was performed under different inlet conditions of flow rate of water, heat load, inlet water temperature and air flow rate. Signal-to-noise ratio (S/N) analysis, analysis of variance (ANOVA) and regression were carried out in order to determine the effects of process parameters on cooling tower outlet water temperature and to identify optimal factor settings of counter flow induced draft cooling tower performance with sufficient accuracy.

Performance Analysis of Cooling Tower in Process Industry

International Journal of Advance Research and Innovative Ideas in Education, 2017

The performance of Cooling Towers is of massive importance for a large number of process industries that must depend upon Cooling Towers as their only means of waste heat rejection. But still, the performances of Cooling Towers have been problematic. Normally they are used to dissipate heat from heat sources to the heat sink. The cooling of hot liquid wastage and process water is required from reuse and environmental point of view. The effectiveness of Cooling Tower relies on flow rates of air and water temperature. In this evaluation of the performance of Cooling Towers the cooling tower located at one of the unit of M/s. Aarti Industries Ltd. The aim is to analyze the performance of Cooling Tower and give the optimum solution that would reduce the monitoring input.

IJERT-CFD Analysis Of FRP Counter Flow Cooling Tower In Blow Molding Machine

International Journal of Engineering Research and Technology (IJERT), 2013

https://www.ijert.org/cfd-analysis-of-frp-counter-flow-cooling-tower-in-blow-molding-machine https://www.ijert.org/research/cfd-analysis-of-frp-counter-flow-cooling-tower-in-blow-molding-machine-IJERTV2IS2596.pdf Cooling towers are one of the biggest heat and mass transfer devices used to transfer process waste heat to the atmosphere. Cooling towers make use of evaporation whereby some of the water is evaporated into a moving air stream and subsequently discharged into the atmosphere. As a result, the remainder of the water is cooled down significantly. The process parameters such as inlet Air Wet bulb Temperature, Flow rate of Water and fills porosity have more influence on Thermal performance of cooling tower. The Temperature of outlet water is maintained nearest to inlet air wet bulb temperature to obtain the best Thermal Performance of cooling tower.. In this paper the CFD analysis of cooling tower is present and result is compared with practical reading for validation purpose.

Experimental and Analytical Investigation to Improve the Efficiency of Industrial Cooling Tower

Cooling towers make use of evaporation whereby some of the water is evaporated into a moving air stream and subsequently discharged into the atmosphere. As a result, the remainder of the water is cooled down significantly.The process parameters such as inlet air rate, water flow rate and fills porosity have more influence on Thermal performance of cooling tower. The Temperature of outlet water is maintained nearest to inlet air wet bulb temperature to obtain the best Thermal Performance of cooling tower. So current work is to obtain and maintaining outlet water Temperature nearest to inlet air wet bulb temperature. The cooling tower fill is the most critical component in the operation of the cooling tower. The function of the tower fill is to provide a maximum contact surface between the water and the air to promote evaporation and heat transfer. Cooling tower fill accelerates the transfer of heat from circulating water by maximizing the contact area between water and air. So inlet water flow rate, inlet air rate and fill porosity are important factor to maintain the outlet temperature of water nearest to inlet air wet bulb temperature.

ANALYSIS AND PERFORMANCE TEST ON COOLING TOWER

Journal ijetrm , 2024

The primary objective of the study is to analyse the aerodynamic loads exerted on the cooling tower through wind analysis. This examination aims to comprehend the impact of aerodynamic forces on the structural integrity and stability of the cooling tower. Furthermore, the study encompasses thermal and fluid dynamic analyses to evaluate the heat dissipating rate from the cooling tower. The research considers the variables of heat exchanger temperature and air mass flow rate to comprehensively understand the heat dissipation process. By varying these parameters, the researchers aim to assess their influence on the efficiency of heat dissipation and optimize the cooling tower's performance. overall, this study contributes to advancing understanding in the field of thermal power generation by providing insights into the aerodynamic behaviour and thermal performance of cooling towers. The findings derived from this research could potentially inform the design and operation of cooling systems in thermal power stations, thereby enhancing their efficiency and sustainability.

Performance Assessment of a Counter Flow Cooling Tower – Unique Approach

Energy Procedia, 2017

Cooling tower is one of the most suitable system for evaporative cooling of hot water in comparison with other types of evaporative cooling systems. In the present study, a finite difference model is developed for predicting the characteristics of coupled heat and mass transfer processes occurring in a counter flow forced draft cooling tower. This model consists of thermal effectiveness, height of the tower and moisture effectiveness as variable parameters, and provides a correlation for heat and mass transfer coefficients in order to obtain the desired performance parameters. The predicted results for evaporative cooling process are in good agreement with the experimentally measured data. The mathematical model developed in this study can be used as a tool for predicting the cooling tower performance characteristics.

A comprehensive approach to cooling tower design

Applied thermal engineering, 2001

In this paper, a mathematical model for a counter¯ow wet cooling tower is derived, which is based on one-dimensional heat and mass balance equations using the measured heat transfer coecient. The balance equations are solved numerically to predict the temperature change of air and water, as well as the humidity as a function of the cooling tower high. Experimental measurements on two pilot-scale cooling towers were carried out in order to analyze the performance of dierent cooling tower ®lling materials. Also, the performance of other cooling tower elements, such as droplet separators and water spray nozzles, was investigated in the pilot experiments. The¯ow distribution, i.e. the velocity ®eld, upstream to the ®lling material was predicted using the three-dimensional version of the computational¯uid dynamics (CFD) code Fluent/UNS UNS, version 4.2. The calculated¯ow ®elds are presented for dierent distances between the inlet of the air and the ®lling material. In addition, the two-dimensional version of the CFD code Fluent/ UNS UNS , version 4.2, was applied to predict the external air¯ow around the cooling tower and the back¯ow in dierent weather conditions in summer and winter. The research project was carried out in connection to an industrial cooling tower installation. Ó