Advantages and disadvantages of direct heating versus intermediate heat exchange?
Thread Content
Which method provides higher temperature control accuracy: direct heating with an electric heater or using an intermediate heat exchanger? Could you please explain the reasons, or discuss the advantages and disadvantages of direct heating versus heat exchange in between? Thank you!
You need to describe the specific application. Electric heating should offer high efficiency if the process conditions are suitable; however, for processes that require a large flow rate with a small temperature difference, heat exchangers may be necessary. The level of control precision depends on the programming and debugging done.
It’s just a conceptual question; I thought of it and decided to ask.:) Also, why does a process with high flow rate and low temperature difference require intermediate heat exchange? Isn’t it difficult to achieve a low temperature difference with direct electric heating?
Generally, when the container is large, direct heating results in uneven heating
Generally, when the container is large, direct heating results in uneven heating