【Daily Question】2017.8.9
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Briefly describe the heat transfer process between the hot and cold fluids in a partitioned heat exchanger? Answer: The shell-and-tube heat exchanger is a commonly used heat exchange device in chemical production. In such a heat exchanger, the cold and hot fluids are separated by a solid wall; heat is transferred from the fluids first through convection to one side of the tube wall, then through conduction to the other side of the tube wall, and finally again through convection to the cold fluid. http://down.hcbbs.cc/attachment/forum/201706/10/203353z7y06fdo70r6eod0.jpg Announcement on the recruitment of qualified moderators in the petrochemical sector (valid indefinitely) http://bbs.hcbbs.com/thread-1811628-1-1.html (Source: Haichuan Chemical Industry Forum) “My Technical Upgrades” in the field of coal chemical industry in 2017 http://bbs.hcbbs.com/thread-1786290-1-1.html (Source: Haichuan Chemical Industry Forum) Event for registered chemical engineers: Sharing experiences and learning from others’ experiences http://bbs.hcbbs.com/thread-1808158-1-1.html (Source: Haichuan Chemical Industry Forum)
This post was last edited by ceybwang on 2017-8-9 at 11:53. The shell-and-tube heat exchanger is a commonly used heat exchange device in chemical production. In such exchangers, the hot and cold fluids are separated by a solid wall; heat is transferred from the fluids first through convection to one side of the tube wall, then through conduction to the other side of the tube wall, and finally again through convection to the cold fluid.
The shell-and-tube heat exchanger is a commonly used heat exchange device in chemical production. In such exchangers, the cold and hot fluids are separated by a solid wall; heat is transferred from the fluids first through convection to one side of the tube wall, then through conduction to the other side of the tube wall, and finally again through convection to the cold fluid
A partitioned heat exchanger, also known as a surface heat exchanger, is a type of heat exchanger in which the hot and cold fluids are separated by a wall. During the heat exchange process, the two fluids do not come into contact with each other; heat is transferred from the hot fluid to the cold fluid through the wall.
The characteristic of a partitioned heat exchanger is that the cold and hot fluids are separated by a solid wall (tube or plate), do not mix with each other, and exchange heat through this partition.
The shell-and-tube heat exchanger is a commonly used heat exchange device in chemical production. In such a heat exchanger, the cold and hot fluids are separated by a solid wall; heat is transferred from the fluids first through convection to one side of the tube wall, then through conduction to the other side of the tube wall, and finally again through convection to the cold fluid.
Generally, there are three processes: first, the convective heat transfer from fluid 1 to the heat exchanger wall; second, the thermal conduction through the heat exchanger wall; and third, the convective heat transfer from the heat exchanger wall to fluid 2
In a partitioned heat exchanger, the hot and cold fluids are separated by a solid wall. Heat is transferred from the hot fluid first via convection to one side of the tube wall, then via conduction to the other side of the tube wall, and finally again via convection to the cold fluid.
Answer: The shell-and-tube heat exchanger is a commonly used heat exchange device in chemical production. In such a heat exchanger, the cold and hot fluids are separated by a solid wall; heat is transferred from the fluids first through convection to one side of the tube wall, then through conduction to the other side of the tube wall, and finally again through convection to the cold fluid.
The hot fluid transfers heat through convective heat transfer and heat transfer across the wall, the hot and cold surfaces of the wall exchange heat through thermal conduction, while the cold fluid transfers heat with the wall through convection. In other words, the heat transfer process from a hot fluid to a cold fluid is convective heat transfer, thermal conduction, and convective heat transfer.
The shell-and-tube heat exchanger is a commonly used heat exchange device in chemical production. In such exchangers, the cold and hot fluids are separated by a solid wall; heat is transferred from the fluids first through convection to one side of the tube wall, then through conduction to the other side of the tube wall, and finally again through convection to the cold fluid