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- DictionaryHeat ex·chang·er/hēt iksˈCHānjər/
noun
- 1. a device for transferring heat from one medium to another.
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- Heat exchangers are devices that are used to transfer thermal energy from one fluid to another without mixing the two fluids. The fluids are usually separated by a solid wall (with high thermal conductivity) to prevent mixing or they may be in direct contact.
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May 22, 2019 · Heat exchangers are devices that are used to transfer thermal energy from one fluid to another without mixing the two fluids. The fluids are usually separated by a solid wall (with high thermal conductivity) to prevent mixing or they may be in direct contact.
- What Are Heat Exchangers Used for?
- Types of Heat Exchangers
- What Are The Best Materials For A Heat Exchanger?
You can see heat exchangers in all kinds of places, usually working to heat or coolbuildings or helping engines and machines to work more efficiently. Refrigerators and air-conditioners, for example, use heat exchangers in the opposite way from central heating systems: they remove heatfrom a compartment or room where it's not wanted and pump it awa...
All heat exchangers do the same job—passing heat from one fluid to another—but theywork in many different ways. The two most common kinds of heatexchanger are the shell-and-tube and plate/fin. In shell and tubeheat exchangers, one fluid flows through a set of metal tubes whilethe second fluid passes through a sealed shell that surrounds them.That's...
Photo: Plastics are perfectly suitable materials for low-temperature heat exchangers. You might think heat exchangers would always need to be made of metals, which quickly absorb and conduct heat—and many of them are. But heat exchangers can also be made of ceramics, composites (based on either metals or ceramics), and even plastics(polymers). All ...
- 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.
Jan 31, 2022 · The simple answer to the question – “What is a heat exchanger” is that it’s a device made to transfer heat from one medium to another. Before we head on to explain the specifics, it is important to try and explain why heat exchangers matter, to begin with.
Mar 6, 2023 · Heat exchangers are devices designed to transfer heat between two or more fluids—i.e., liquids, vapors, or gases—of different temperatures.
May 17, 2024 · heat exchanger, any of several devices that transfer heat from a hot to a cold fluid. In many engineering applications it is desirable to increase the temperature of one fluid while cooling another. This double action is economically accomplished by a heat exchanger.
Used to transfer heat between one fluid (either liquid or as a gas) and another fluid (another liquid or gas) without allowing the two fluids to come into direct contact with each other, heat exchangers are used in both heating and cooling processes.
