On finned heat exchange
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How is the heat exchange efficiency of fins calculated? Do you have it? What should I play? Let me explain my problem: In the company’s primary cooler, the temperature difference between the inlet and outlet water in summer can be as high as 20 degrees Celsius; the inlet water temperature is around 36 degrees, while the outlet water temperature is around 56 degrees. I’d like to ask the experts here: is it possible to install fins or other cooling elements during installation to aid in heat dissipation? How effective is it? By how much can one meter or ten meters reduce the temperature compared to not using radiators? Installation: The inlet pipe is DN500, the outlet pipe is DN600; both the inlet and outlet pipes are approximately 80 meters long. Here’s some reference. Is the installation appropriate?
Original poster, generally speaking, you need to provide the drawings and specifications of your existing primary cooler equipment so that we can help you resolve the issue. In most cases, since it’s not the company’s own equipment, no one is willing to make modifications; when problems arise, they tend to shirk responsibility and give various excuses
It’s not about modifying the primary cooler; rather, it involves adding fins or other heat exchange devices to the inlet and outlet pipelines of the primary cooler. I’m seeking advice from experts to determine whether this is feasible. I consulted several experts in thermodynamics, who said that the pipeline is too large and there’s no need to install this.
Process calculations are required, and then the plan is determined based on the results of those calculations. I’ve encountered situations where the difference was 15 degrees before; it’s similar to what you described, but the pipe opening wasn’t that large. Threaded pipes were used instead of regular pipes, as the high flow rate resulted in less than ideal outcomes.
Teacher, please leave a message stating what data you need; I will prepare it for you. I earnestly ask you to carry out the calculation. Note: It is not the equipment attached to the primary cooler, but rather the inlet and outlet pipes of the primary cooler – the inlet diameter is 500 mm, the outlet diameter is 600 mm, and both the inlet and outlet are 100 meters long respectively
Do you mean adding fins to the pipe or using equipment to lower the temperature of the outlet medium?