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Why Expansion bellows are required in heat exchanger?
expension belows are used for heat exchanger to avoid thermal stress
What is a gas furnace heat exchanger?
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.
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.
What is the purpose of floating head in heat exchanger?
allow for tube expansion
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
What are the 4 basic elements of heat exchanger?
The four basic elements of a heat exchanger are the hot fluid inlet, hot fluid outlet, cold fluid inlet, and cold fluid outlet. The hot fluid carries heat into the exchanger, transfers it to the cold fluid, and then exits the system. The cold fluid absorbs heat from the hot fluid and exits the system at a higher temperature.
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 is one to one pass heat exchanger?
A one-to-one pass heat exchanger is a type of heat exchanger where both the hot and cold fluids pass through the exchanger once. This design is simpler and more compact compared to multiple pass exchangers, but may have a lower heat transfer efficiency due to the limited contact time between the fluids. It is commonly used in applications where space and cost are important factors.
Capacity ratio of a heat exchanger?
It is the ratio of (mdot*Cp)min/(mdot*Cp)max where the heat exchanger contains two fluids for which the mdot*Cp should be calculated for each to determine which one is greater. by doing so one can define the ability of one fluid to carry thermal/heat energy with respect to the other. so this is a way of saying how well can heat be transferred and so how effective is the heat exchanger
What is split flow heat exchanger?
A split flow heat exchanger is a type of heat exchanger where the hot and cold fluids are split into multiple streams before being recombined. This design allows for more efficient heat transfer as it increases the surface area of contact between the two fluids. Split flow heat exchangers are commonly used in industrial processes where precise temperature control is required.
Exchanger is not transfer heat why?
Heat exchanger manufacturers is an ISO 9001 certified company located in Coimbatore, Tamilnadu. The company started its functioning 2011 in, with a strong background in heat exchanger manufacturing. Our well-experienced and dedicated employees consistently thrive to serve our customers with the best heat exchanger solution. visit :: heatexchangersmanufacturers.in
What is the best books of heat transfer?
Approach to heat transfer (SI units) By yunus cengel
What is the difference between double pipe heat exchanger and shell and tube heat exchanger?
double pipe heat exchanger is made if two concentric tubes one carrying cold flow and the other one carrying hot flow. but shell and tube hear exchangers are made of a shell like a vessel filled with many thin tubes to transfer heat between fluids. there are more data available at : http://scopewe.com/double-pipe-heat-exchanger-design-part-1/
What is heat exchanger duty?
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"
Working principle of shell and tupe heat exchanger?
to cool hot fluit at certain temperature with the help of cold fluid
What is the condenser approach?
condenser approach is heat transfer the water to gas of condenser efficiency is good less then below (2 F) the system is working good.
Why Expansion bellows are required in heat exchanger?
expension belows are used for heat exchanger to avoid thermal stress
