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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 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"
What is the sole purpose of a heat exchanger?
The purpose of a heat exchanger is that it transfers heat from a liquid to another fluid on the opposite side of a barrier. There are two kinds of heat exchangers parallel-flow and counter-flow.
How you can increase the retention time in shell and tube heat exchanger?
the most effective way to do so is to reduce the flow of the heat exchanger
Does effectiveness of a heat exchanger depend on operation condition?
Yes it does. As with any device, a heat exchanger is designed to work within certain parameters. If the conditions exceed these limits, the effectiveness of the heat exchanger is compromised, and my wind up not functioning at all.
When is it necessary to schedule a heat exchanger replacement?
It is necessary to schedule a heat exchanger replacement when the current heat exchanger is damaged, malfunctioning, or no longer efficient in transferring heat effectively. Regular maintenance and inspections can help determine when a replacement is needed.
Why counter corrent flow is better than cocurrent flow for heat transfer?
Counter-current flow is more efficient for heat transfer because it maintains a higher temperature gradient along the entire length of the heat exchanger, allowing for a more continuous and effective transfer of heat. As the hot and cold fluids move in opposite directions, the temperature difference between them remains large resulting in a more efficient heat exchange process. In contrast, in co-current flow, the temperatures of the fluids tend to equalize more quickly along the length of the heat exchanger, reducing the overall effectiveness of heat transfer.
What is the relationship between the efficiency of a heat exchanger and its surface area?
The efficiency of a heat exchanger is directly proportional to its surface area. This means that a larger surface area allows for more heat transfer, resulting in a more efficient heat exchanger.
How does countercurrent heat exchanger conserve heat?
The method employed in conserving heat is counter-current heat exchange. This utilizes blood vessel arrangement to contain warm blood in the core and colder blood in the extremities. Arteries moving away from the core run in close proximity to the veins that are returning blood to the heart. This conformation allows heat from the warm arterial blood to be transferred.
Why Air-conditioner become less efficient when it is dirty?
It can't transfer heat as efficiently when the exchanger is dirty.
What does a condenser boiler do?
A condenser boiler has a primary and a secondary heat exchanger. Fuel that is used to simply warm up water can be sent to the secondary heat exchanger and reused. This is a substantially more efficient use of energy.
Explain the purpose of the heat exchanger in the nuclear power plant?
The heat exchanger is the device built for efficient heat transfer from one medium to another, whether the media are in direct contact or the media are separated by a solid wall so that they never mix.
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.
How does an air heat exchanger work to transfer heat between two air streams?
An air heat exchanger works by passing two air streams close to each other without mixing them. Heat from the warmer air stream transfers to the cooler air stream through the walls of the exchanger. This allows for efficient transfer of heat between the two air streams without them physically mixing.
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 are the differences between a heat pump and a heat exchanger, and which one is more efficient for heating and cooling purposes?
A heat pump is a device that moves heat from one place to another using electricity, while a heat exchanger transfers heat between two fluids without moving them. Heat pumps are generally more efficient for heating and cooling purposes because they can provide both heating and cooling functions, while heat exchangers are typically used for specific heat transfer applications.
What are the benefits of installing a home heat exchanger for efficient heating and cooling?
Installing a home heat exchanger can provide benefits such as increased energy efficiency, cost savings on heating and cooling bills, improved indoor air quality, and reduced environmental impact.
