Regarding heat exchange between water and water, the smaller the temperature difference for heat exchange, does that mean a larger heat exchange area is required? ?
Thread Content
Regarding heat exchange between water and water, the smaller the temperature difference for heat exchange, does that mean a larger heat exchange area is required? ? Will the flow rate decrease inside the heat exchanger? Will it cause a sharp decline in heat exchange efficiency? ? Isn’t it uneconomical to use the heat exchanger in this way? ?
If the temperature difference for heat transfer in any medium is small, the heat transfer area is very large. Or increase the flow rate to raise the heat transfer coefficient K. Q=KA△T – isn’t this the most basic formula? What’s the question?
Those who just try to earn points – ignore them; they even managed to become moderators, hehe
The main requirement for this role is to be online regularly, responsible for rating posts, promoting them, and removing any illegal or inappropriate posts; no strict requirements are imposed regarding professional knowledge. If you are interested in becoming a moderator, you can also apply
It’s not so much the professional knowledge; it’s mainly that such behavior is truly despicable. You should understand this by looking at his record
It’s not about earning points; points are useless. That’s not what matters. He’s an amateur without any professional knowledge; his logical thinking is poor, and the questions he asks have no value for discussion. His comprehension skills are also terrible, so when he expresses certain issues, his words lack any forceful critique. It’s better to simply state the original question – adding his interpretation only serves to lead things down a wrong path
I remember having seen a case where it’s not true that the larger the heat exchange area, the better; additionally, the influence of the fluid flow conditions (related to flow velocity) must also be taken into account. Furthermore, if the temperature difference between the hot and cold fluid streams is too small, the driving force for heat transfer is also limited.
Yes, the temperature difference is small, so a large heat exchange area is required