Abstract
The article analyzes a shell and tube type condenser’s thermal performance using concepts of efficiency and effectiveness. Freon 134a is used as a coolant flowing through the shell. Water or water-based aluminum oxide nanoparticles are at relatively low saturation pressure in the tube. The condenser consists of 36 tubes divided into three central regions for analysis: superheated steam, saturated steam, and subcooled liquid. The three regions contain four tubes with three steps each, that is, 12 tubes. Region I, superheated steam, includes three horizontal baffles. Profiles of temperature, efficiency, and effectiveness are presented graphically for the three regions, with fixed refrigerant flow equal to 0.20 kg/s and fluid flow rate in the tube ranging from 0.05 kg/s to 0.40 kg/s. The experimental result for vapor pressure equal to 1.2 MPa and water flow equal to 0.41 kg/s was used as one of the references for the model’s physical compatibility.
Highlights
Shell and tube heat exchangers are widely used in industrial processes
Water or water-based aluminum oxide nanoparticles are at relatively low saturation pressure in the tube
The condenser consists of 36 tubes divided into three central regions for analysis: superheated steam, saturated steam, and subcooled liquid
Summary
Shell and tube heat exchangers are widely used in industrial processes. These heat exchangers are characterized by their versatility, applicability, and are still objects of study due to the countless possible physical arrangements that they allow. The deposition rate in media, shell, and tube can significantly affect the heat transfer rate, with a greater weight to the shell’s side. The article’s objective is to analyze the thermal performance of a shell and tube type condenser using concepts of efficiency and effectiveness. Water or water-based aluminum oxide nanoparticles are at relatively low saturation pressure in the tube. The condenser consists of 36 tubes divided into three central regions for analysis: superheated steam, saturated steam, and subcooled liquid. Region I, superheated steam, includes three horizontal baffles
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