Experimental Study With Using Anfis to Evaluate the Performance of a Modified Closed Wet Cooling Tower

Abstract

The present study involves experimental and computational analysis to investigate the thermal performance of modified closed wet cooling tower in perspective of first and second law of thermodynamics (analysis of energy and exergy) according to Iraqi weather. The experimental study includes design, manufacture and testing prototype of a modified counter flow forced draft closed wet cooling tower. The modification based on addition packing to the conventional closed wet cooling tower. To assess the thermal performance of cooling towera progression of tests was done at various operational and conformational parameters.The theoretical study included developed six models by an Adaptive Neuro-Fuzzy Inference System to anticipating various execution parameters of the tower including the cooling range, tower approach, thermal efficiency, cooling capacity, evaporation losses and exergy destruction. After simulating, three dimensional surface viewers obtained for future behavior of the thermal performance of cooling tower involves interactions between all operational parameters. Comparison of the output values obtained using the Adaptive Neuro-Fuzzy Inference System model and those obtained experimentally for other cases not included in the training data, indicates high compatibility with maximum percentage error of (5%).

An Experimental Study on the Heat and Mass Transfer Characteristics of an Evaporative Cooler

“…Nasr et al developed a rapid design algorithm for evaporative coolers with plain tubes [22] and twisted tubes [23], giving the relationship between the heat transfer coefficient, pressure drop, heat transfer area, and mass transfer coefficient. Mahdi and Jaffal [24,25] carried out an exergy analysis on an evaporative cooler and found that the exergy loss is directly proportional to the air flow rate, the water flow rate in the pipe, the water inlet temperature in the pipe, and the wet bulb temperature at the air inlet, and inversely proportional to the spray water flow. The correlation equation of the heat and mass transfer coefficients was established.…”

Evaluation of thermal performance for natural and forced draft wet cooling tower

“…Cooling tower is a heat exchanger to reduce water temperature when small amount is evaporated to the ambient air when they become in direct contact with each other. Cooling tower is complement to the power generation units, nuclear reactor, chemical and petrochemical industry, and air conditioning plants [1]. To improve the efficiency of these systems the researchers and designers focus on developing the thermal performance of the cooling tower because of their great influence to increase the efficiency of these mentioned systems [2].…”