Heat exchanger
Thread Content
How to calculate the heat transfer efficiency of a heat exchanger?
The \"Modern Coal Chemical Engineering Handbook\" is truly a great book; it’s just that I don’t have the money! I need to make money quickly!
It’s mentioned in the textbook on chemical engineering principles; one can go and study it*
How should I answer this kind of question? First, the heat exchange area is unknown; second, the heat exchange medium is unknown
Generally, the efficiency φ is calculated based on the flow pattern using RP, but it can also be obtained through software simulation
All the principles of chemical engineering are there...............
There are many posts on the forum related to the principles of chemical engineering; they can be downloaded for study!* ! !
Download a software for calculating the heat exchange area of heat exchangers; just check the parameters there
First, the heat dissipated by the medium is calculated based on the heat exchange area of the heat exchanger and the heat transfer temperature; then, the heat absorbed is determined using the circulation volume of the cooling medium and its temperature rise. Finally, the ratio between these two values is calculated.
Calculations are carried out based on the dirt level of the medium used, the type of heat exchange element, and the thermal contact resistance; the specific methods are generally described in books on heat exchange. However, it is necessary to have an understanding of some basic types
In my opinion, the term \"thermal efficiency\" of heat exchangers is not used at all in their design; it refers to the relationship between actual and theoretical values. Tendering agencies generally do not ask about this, but if it is specified in the tender requirements, then a value of ›96% should be indicated. Exactly how much it is remains unknown.
The calculation of the heat transfer efficiency varies for different heat exchangers
Look at the principles of chemical engineering – the calculations are different