scholarly journals Optimization of cooling tower performance analysis using Taguchi method

2013 ◽  
Vol 17 (2) ◽  
pp. 457-470 ◽  
Author(s):  
Ramakrishnan Ramkumar ◽  
Arumugam Ragupathy
Keyword(s):  
Performance Analysis ◽  
Taguchi Method ◽  
Cooling Tower ◽  
Signal To Noise Ratio ◽  
Sufficient Accuracy ◽  
Wire Mesh ◽  
Signal To Noise ◽  
Counter Flow ◽  
Temperature Signal ◽  
Inlet Conditions

This study discuss the application of Taguchi method in assessing maximum cooling tower effectiveness for the counter flow cooling tower using expanded wire mesh packing. The experiments were planned based on Taguchi?s L27 orthogonal array .The trail was performed under different inlet conditions of flow rate of water, air and water temperature. 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 effectiveness and to identity optimal factor settings. Finally confirmation tests verified this reliability of Taguchi method for optimization of counter flow cooling tower performance with sufficient accuracy.

scholarly journals Experimental Study and Performance Analysis of Ceramic Packing Cooling Tower Using Taguchi Method

2014 ◽  
Vol 08 (1) ◽  
Keyword(s):  
Experimental Study ◽  
Taguchi Method ◽  
Orthogonal Array ◽  
Cooling Tower ◽  
Signal To Noise Ratio ◽  
Packing Material ◽  
Counter Flow ◽  
Ceramic Packing ◽  
Forced Draft ◽  
Inlet Conditions

Deterioration of the packing material is a major problem in cooling tower. In this experimental study, ceramic tile is used as packing material. The experimental study was conducted in a forced draft cooling tower. Cooling tower operating parameters were optimized using Taguchi approach. The application of Taguchi method is assessing maximum cooling tower effectiveness for the Forced draft counter flow cooling tower using ceramic packing. An experimental study has been carried out for Taguchi’s L9 orthogonal array. According to the Orthogonal array, the trail was performed under different inlet conditions of flow rate of water, air and Inlet water temperature. Signal-to-noise ratio (S/N) and regression were carried out in order to determine the effects of process parameters on cooling tower effectiveness. Finally, confirmation tests verified this reliability of Taguchi method for optimization of forced draft counter flow cooling tower performance with sufficient accuracy. Confirmation experiment was d o n e using optimum combination showed that cooling tower effectiveness was found by experiment is closer to the predicated value.

PERFORMANCE ANALYSIS OF COUNTER FLOW WET COOLING TOWER

2011 ◽  
Vol 19 (02) ◽  
pp. 141-148 ◽  
Author(s):  
R. RAMKUMAR ◽  
A. RAGUPATHY
Keyword(s):  
Adverse Effect ◽  
Performance Analysis ◽  
Water Flow ◽  
Cooling Tower ◽  
Wire Mesh ◽  
Test Rig ◽  
Counter Flow ◽  
Flow Type ◽  
Transfer Unit ◽  
Experimental Trials

This paper presents an experimental work, which studies the performance of a counter-flow type cooling tower. The experimental trials have been carried out in a counter-flow type cooling tower test rig with mechanical draft. Expanded Wire Mesh type of film packing has been used for experimentation. The packing is made of mild steel with height ranging from 800 to 1255 mm. This study investigates the effect of the air and water flow on the cooling tower range, as well as the tower characteristics for different air flow and water flow quantities. The variation of temperature along the height of pack is measured by means of suitable thermocouples at five different places. The results show that the mass flow rate has adverse effect on the number of transfer unit. Also tower range would be increased by decreasing the inlet wet bulb air temperature.

Comprehensive coupling model of counter-flow wet cooling tower and its thermal performance analysis

Energy ◽  
2021 ◽  
pp. 121726
Author(s):  
J.H. Yu ◽  
Z.G. Qu ◽  
J.F. Zhang ◽  
S.J. Hu ◽  
J. Guan
Keyword(s):  
Performance Analysis ◽  
Thermal Performance ◽  
Cooling Tower ◽  
Coupling Model ◽  
Counter Flow

scholarly journals Dynamic Modeling of Mechanical Draft Counter-Flow Wet Cooling Tower With Modelica

2010 ◽  
Author(s):  
Xiao Li ◽  
Yaoyu Li ◽  
John E. Seem
Keyword(s):  
Dynamic Modeling ◽  
Cooling Tower ◽  
Transient Behavior ◽  
Counter Flow ◽  
Inlet Conditions ◽  
The One ◽  
Control Volumes ◽  
Air Conditioning Systems ◽  
Volume Method ◽  
Energy Balances

Cooling towers are important equipments for the heating, ventilation and air conditioning systems in commercial buildings, rejecting the process heat generation to the atmosphere. Dynamic modeling of cooling tower is beneficial for control design and fault detection and diagnostics of the chilled-water systems. This paper proposes a simple and yet effective dynamic model for a typical mechanical draft counter-flow cooling tower. The finite volume method is applied to the one-dimensional heat and mass transfer analysis. With control volumes defined separately for the water and air sides, the dynamic equations are constructed with the mass and energy balances. The steady-state performance of the proposed model is evaluated with the experimental data from literature. The transient behavior is simulated under the changes of tower inlet conditions, with the performance to be evaluated in the future with field test data.

Application of Taguchi method in the optimization of geometric parameters for double pin joint configurations made from glass–epoxy nanoclay laminates

2016 ◽  
Vol 51 (19) ◽  
pp. 2689-2706 ◽  
Author(s):  
Manjeet Singh ◽  
J S Saini ◽  
H Bhunia ◽  
Paramdeep Singh
Keyword(s):  
Taguchi Method ◽  
Signal To Noise Ratio ◽  
Characteristic Curve ◽  
Free Edge ◽  
Geometric Parameters ◽  
Signal To Noise ◽  
Bearing Strength ◽  
Significant Parameter ◽  
Numerical Predictions ◽  
Good Agreement

In the present work, Taguchi method was used for the optimization of geometric parameters for double pin joint configurations. The orthogonal array, the signal-to-noise ratio, and analysis of variance were employed to study the effect of geometric parameters on the bearing strength of the joints. Geometric parameters, i.e. the distance from the free edge of the specimen to the diameter of the first hole (E/D) ratio, width of the specimen to the diameter of the hole (W/D) ratio, the distance between the two holes to the diameter of the hole (P/D) ratio and side width to the diameter of the hole (K/D) ratio were investigated for the serial and parallel hole configurations. The results demonstrate that the E/D ratio is the most significant parameter to increase the bearing strength in both serial and parallel pin joint configurations. Its percentage contribution is about 84.5% and 64.23% in serial and parallel pin joint configurations, respectively. Characteristic curve with Tsai–Wu failure criterion was used for the prediction of the bearing strength in the joints numerically. A good agreement was obtained between experimental results and numerical predictions.

scholarly journals Performance Analysis of Reconfigurable Intelligent Surface-Aided Full-Duplex Cooperative NOMA System

2021 ◽  
Vol 2021 ◽  
pp. 1-13
Author(s):  
Xiang Zhao ◽  
Jinyong Sun
Keyword(s):  
Performance Analysis ◽  
Outage Probability ◽  
Multiple Access ◽  
Signal To Noise Ratio ◽  
Access Point ◽  
Full Duplex ◽  
Statistical Characteristics ◽  
Signal To Noise ◽  
Outage Performance ◽  
Analytical Results

The outage performance of a reconfigurable intelligent surface- (RIS-) aided full-duplex cooperative nonorthogonal multiple access (NOMA) system is studied in this paper. Based on the statistical characteristics of the signal-to-noise ratio of the reflection channel from the access point via RIS to the near user, and the cooperative channel from the near user to the far NOMA user, the outage probability of both the near and far users is derived. Through the comparison with the outage performance of conventional cooperative NOMA without employing RIS, the superiority of the proposed scheme is demonstrated. Finally, the correctness of the analytical results is validated with simulation.

Optimization of Reliability Test on the Shell of Portable Electronic Products Based on Taguchi Method

2014 ◽  
Vol 599-601 ◽  
pp. 1021-1024
Author(s):  
Xue Mei Du ◽  
Wei Lei ◽  
Nai Jia Wang ◽  
Jing Yu Ding
Keyword(s):  
Taguchi Method ◽  
Traditional Approach ◽  
Signal To Noise Ratio ◽  
Reliability Test ◽  
Signal To Noise ◽  
Electronic Products ◽  
Long Cycle ◽  
Electronic Product ◽  
New Process ◽  
New Type

Traditional reliability test of electronic products has the feature of many contents, long cycle and rising test fees. This paper analyzes the feasibility of combination of Taguchi method and reliability test. Then, the process of optimizing reliability test is proposed with emphasis on use of Taguchi method such as orthogonal table and signal-to-noise ratio (SNR). Finally, the process is applied to the reliability test on the shell of a new type of portable electronic product developed by C Company, verifying that the new process is operable and can reduce test numbers, time and cost while guaranteeing effectiveness of reliability test compared with the traditional approach.

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