Temperature after replacing the circulating hydrogen cooler?
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The high-pressure tank top circulating hydrogen cooler ensures that the temperature of the circulating hydrogen, at 60–70°C, is even lower than that of the circulating water; the circulating water temperature is 24°C while that of the circulating hydrogen is 21°C. I’d like to ask why. Considering specific heat, it seems that hydrogen has a higher specific heat than water?
Whether the temperature measurement points are set appropriately, or within the error range of the instrument. Generally, circulating hydrogen doesn’t need to be cooled down to such a low temperature, right?
Is the hydrogen temperature control in your hydrogen circulation machine set so low?
Is there any error in the temperature sensing thermocouple? The location of the temperature measurement point – we don’t control it that low either~~~
Personally, I think it’s absolutely impossible for the heat transfer to be \"cooled\" to a temperature lower than that at the inlet of the circulating water; this has nothing to do with specific heat. It’s a matter of the direction of heat transfer, and something that violates the second law of thermodynamics cannot happen. Let’s analyze this from the following aspects to see if it makes sense; please feel free to correct me if I’m wrong: 1. Errors in measuring the temperature of the circulating hydrogen, or an inappropriate selection of the location where the temperature is measured； 2. The circulating hydrogen cools down due to pressure drop, but it only passes through one heat exchanger; this also seems unlikely ； 3. The inlet temperature of the circulating water is inaccurate; in winter in the north, the temperature of the circulating water can be very low ； In summary, I still tend to think the data is inaccurate.