expension belows are used for heat exchanger to avoid thermal stress
allow for tube expansion
The heat exchanger is the metal wall or tubing that is heated up when the burners are ignited. The inside of the heat exchanger allows the toxic flue gases produced from the burners to exhaust out through the furnace flue. The outside of the heat exchanger is where the cold air passes over, becomes warmed, and is blown throughout the ductwork of the home. The heat exchanger is the only wall separating the toxic flue gases from the supply air. If a crack develops in the heat exchanger, there is a potential for carbon monoxide gas to leak over to the supply side and be blown throughout your rooms. Carbon monoxide gas is odorless. The human senses will not detect its presence. Ron Ferrara- DHR Mechanical Services, Inc.
The plate heat exchanger is used in multiple systems in the field of HVAC, including geothermal water heating systems, instantaneous domestic hot water systems, semi-instantaneous domestic hot water systems, swimming pool constant temperature maintenance systems, solar hot water systems, etc.Plate heat exchanger systems provide plate heat exchanger designs for each application:1. Geothermal water heating system: The heat exchanger acts as a separate device for the host of the heat pump and the open cold and heat source, which overcomes the corrosion of sensitive equipment such as the host by water quality.2. Domestic hot water system: The good heat transfer performance makes the plate heat exchanger gradually replace the traditional container heating system, with a smaller area and more economical investment.Instantaneous domestic hot water system-to ensure that users have hot water supply anytime, anywhere, compact system, no storage tank required, large boiler capacity required, large heat exchanger Semi-instantaneous domestic hot water system—requires smaller boiler capacity, smaller heat exchanger, easy to grow bacteria in the storage tank, and requires additional places for the storage tank.3. Swimming pool constant temperature maintenance system: Install a heat exchanger to make the pool water circulate independently. In order to avoid the corrosion of the plate by the chloride ion in the pool water, please choose the plate material carefully.4. Solar hot water system: As one of the clean energy sources, solar energy has attracted more and more attention. By using a heat exchanger, the loop for collecting solar energy and the loop for domestic hot water can be separated, thereby effectively protecting it. Cleanliness of the domestic hot water loop.If you want to know more, you can search:YOJO
heat sink classified according to the shape, the shape is how to dissipate within the selected heat sink that is the main intension here,, k type l type rectangular triangular chassis i know this much u can down load the pdfs for the types how to select the required heat sink 9844354439
There are specific values for heat rise across a furnace heat exchanger given in all installation/operation manuals for all furnaces. As long as these limits are adhered to by the installer the heat exchanger will not overheat. I know this does not answer the question but there is no one blanket answer for all furnaces. Basically the more airflow through the furnace, the lower the HX temp and to determine when the airflow is correct a heat rise test is done and the airflow is set to the mid point of that specification.
To absorb thermal stresses.
allow for tube expansion
allow for tube expansion
A heat exchanger is a device that transfers heat from one fluid to the others. A condenser is simply a heat exchanger. It compresses refrigerants into a hot gas to then condense them into a liquid. Majorly condenser is used to cool the required vapor and heat exchanger is used to heat the required liquid.
there are two type of heat exchanger in absorption refrigeration, first is liquid heat exchanger and other is gas heat exchanger.both heat exchanger function is same, to transfer heat (hot medium to cold medium) without violate second newton law of thermodynamics. liquids heat exchanger is between boiler and absorber vessel mean while gas heat exchanger between evaporator and absorber.
Agitated vessel heat exchange refers to the heat exchange that is carried by the internal coils or through the external jacket on the vessel. A recirculation loop with an external heat exchanger may be used when the coils or jacket cannot provide the surface area required.
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The duty of a heat exchanger can be defined in an easy way as "The amount of heat exchanged from a fluid at a higher temperature to the fluid at lower temperature in unit time by a heat exchanger is called its duty"
actually there is no difference , infact condenser itself is a heat exchanger
A heat exchanger.
Calorifer is a heat exchanger, with a specific of air (or other gas) preheat. Usually is directly in a Duct installed. Heat Exchanger usually is separate unit.
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