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A heat exchanger is a system used to transfer heat between a source and a working fluid. Heat exchangers are used in both cooling and heating processes. [1] The fluids may be separated by a solid wall to prevent mixing or they may be in direct contact. [2]
Feb 18, 2023 · Learn what heat exchangers are and how they transfer heat from one fluid to another without mixing them. Find out the different types and uses of heat exchangers in various machines and systems.
May 22, 2019 · Learn what a heat exchanger is, how it works, and how to design and select one. Find out the different types of heat exchangers, such as parallel, counter, double pipe, shell and tube, and plate exchangers, and how to calculate their heat transfer coefficients.
- Countercurrent flow. In cocurrent flow heat exchangers, the streams flow parallel to each other and in the same direction as shown in Figure 2, This is less efficient than countercurrent flow but does provide more uniform wall temperatures.
- Cocurrent flow. Crossflow heat exchangers are intermediate in efficiency between countercurrent flow and parallel flow exchangers. In these units, the streams flow at right angles to each other as shown in Figure 3.
- Crossflow. In industrial heat exchangers, hybrids of the above flow types are often found. Examples of these are combined crossflow/counterflow heat exchangers and multi pass flow heat exchangers.
- Cross/counter flow.
- Classification of heat exchangers: 1. Classification according to construction: Tubular heat exchangers. Plate heat exchangers. Extended surface heat exchangers.
- Materials for heat exchanger: 1. Aluminum 2. Stainless steel 3. Copper.
- Pipe in pipe heat exchangers: Hairpin heat exchangers (often also referred to as “double pipes”) are characterized by a construction form which imparts a U shaped appearance to the heat exchanger.
- Plate type heat exchanger. Construction and working of Plate type heat exchanger. It consists of a series of closely spaced parallel plates with fins held in between.
May 25, 2024 · Heat exchangers are devices that facilitate the transfer of heat from one fluid to another without mixing them. Common in many industrial, commercial, and residential applications, these systems play a critical role in energy conservation and efficiency.
Learn about the types, applications, and design of heat exchangers, devices that transfer heat between fluids. Find chapters and articles from various books and encyclopedias on heat exchangers in chemistry and engineering.
