Issue of unit coastdown time
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Could you please tell me what the coasting time for the centrifugal compressor units in your facility is?
While studying, I find there are really many things I don’t understand
I haven’t really calculated it carefully; it’s usually around 2 to 3 minutes. Is fuel supply taken into account?
Generally, manufacturers will provide you with this data; it varies for each compressor depending on its speed. The capacity of a high-position fuel tank is generally determined based on the amount of fuel required for 3 minutes of normal operation; a coasting time of within 5 minutes is generally sufficient, but it is possible to request that it be designed for 8 minutes
I haven’t calculated it. Generally, steam turbines have their idle time measured to check for any leaks in the valve discs