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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.
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Application of plate heat exchanger?
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
Why you we use log mean temperature difference formula?
The use of the LMTD arises straightforwardly from the analysis of a heat exchanger with constant flow rate and fluid thermal properties. It is a simple method to approximated the temperature diving force in a heat exchanger. The LMTD is a logarithmic average of the temperature difference between the hot and cold streams at each end of the exchanger. The larger the LMTD, the more heat is transferred.
Hot Approach and Cold approach in heat exchanger?
Hot Approach: It is difference in temperature of hot fluid inlet temperature and cold fluid outlet temperature Cold Approach: It is difference in temperature of Hot fluid outlet temperature and cold fluid inlet temperature. Mohsin
Heat Exchanger Types and Uses?
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
How is oil sterilized in biotechnology?
In Biotech or micro, oil is sterilized by keeping it in hot air oven. It is not boiled and not heated on a burner. It is subjected to dry heat, kept for some hours on a certain temperature for a certain time period.
What transfers heat from the hot gas to the airstream to heat the structure?
Heat exchanger
What is difference between condenser and heat exchanger?
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.
Heat exchanger for ammonia absorption refrigeration system?
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.
What does a heat exchanger fan do?
Dissipates the heat produced by the heat exchanger through convection and creates static and velocity pressure to distribute the hot air throughout the duct system.
What can a heat exchanger provide for someone who lives in California?
California has very hot summers and reaches very high temperatures. A heat exchanger can function as air conditioner for someone living in california.
What does a core do?
A heater core in a vehicle takes some of the heat from the coolant and runs it through a heat exchanger. The blower in the car that blows hot air into your car runs through that heat exchanger which heats the air that enters your car.
What does core do?
A heater core in a vehicle takes some of the heat from the coolant and runs it through a heat exchanger. The blower in the car that blows hot air into your car runs through that heat exchanger which heats the air that enters your car.
What does core?
A heater core in a vehicle takes some of the heat from the coolant and runs it through a heat exchanger. The blower in the car that blows hot air into your car runs through that heat exchanger which heats the air that enters your car.
What does a heater core do?
A heater core in a vehicle takes some of the heat from the coolant and runs it through a heat exchanger. The blower in the car that blows hot air into your car runs through that heat exchanger which heats the air that enters your car.
What is a heat exchanger and what does it do?
A heat exchanger is used to move heat from one place to another. What we call heat is actually energy. Hot things contain and emit more heat energy than cold things. A heat exchanger is a device which transfers heat from one medium to another. They're critical components of refrigeration systems, air conditioning systems, space heaters and a huge range of industrial systems.
Application of plate heat exchanger?
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
Advantage of shell and tube heat exchanger over double pipe heat exchanger?
**** you.......... pls somebody answer Double pipe heat exchanger consists of two concentric pipes of different diameters.One pipe is for hot fluid and another is for cold fluid.Both may have same flow direction(COCURRENT) and opposite direction(COUNTERCURRENT). Shell and tube heat exchanger consists of a shell in which large number of parallel tubes are present.One fluid hot or cold flow in shell and other hot or cold flow in the tubes. Also in case of shell & tube(S&T) the hot fluid will have more turbulence than in double pipe heat exchanger (HE) since there are no of tubes within a shell the area for convective heat transfer is considerably increased. so these are much more preferredTherefore the rate of heat transfer is greater in shell and tube because large surface area and enough contacting time
