Abstract
A plate heat exchanger is a type of heat exchangers that provides more surface area for heat transfer between two fluids. Plate heat exchangers are widely used for heat transfer applications in the industry. In addition, they are now widely used in many applications such as food processing, chemical reaction processes, heating and cooling applications in sectors such as petroleum. However, the design of plate heat exchangers is complicated by the large number of variables and geometries that affect its performance. A better heat exchanger design is to achieve a high heat transfer rate at low pumping power with low cost. In this study, the focus is on the research and development efforts of different plate materials, various fluid types, their flow regimes and the plate grooving angles on plate heat exchanger performance. For this purpose, the Computational Fluid Dynamics (CFD) is used. The results show that the heat efficiency is the best performing heat exchanger that can be designed as parallel- and counter-flow, geothermal fluid, titanium plate and 60° groove angle from the point of view.
Highlights
In many engineering applications, heat transfer from the hot flow side to the cold flow side is accomplished through heat exchangers
Computational Fluid Dynamics (CFD) analyzes were performed on the ANSYS-Fluent program
The heat transfer area, total heat flow, mean outlet temperatures of the fluids and their effectiveness are shown in Table 5 for cross and counter flow and Table 6 for parallel and counter flow, according to the groove angles of the samples
Summary
Heat transfer from the hot flow side to the cold flow side is accomplished through heat exchangers. Due to the chemical properties of the geothermal fluid, the heat exchangers are subject to pollution, corrosion, crusting, loss of thermal performance, productivity decline, maintenance and operating difficulties in heating applications. To solve these difficulties, the plate type heat exchangers are usually used. The preferred reasons for the gasked plate heat exchangers include: (i) High heat transfer coefficient, (ii) High thermal efficiency, (iii) The higher efficiency and the smaller space occupancy compared to the shell and tube type heat exchangers, (iv) The cost is low because the plates are thin, (v) Less pollution, (vi) The possibility of mixing of fluids is low, (vii) No vibration, (viii) No hot and cold blind spots, (ix) Ease of maintenance and so on
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