Evaluating for Power Savings in your Compressor Fleet
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Blowby, can indicate inefficiencies due to a few different reasons, but for the scope of this blog post, in the simplest of explanations, Blowby in this context is a measure of the health of your cylinders and can be an indicator of your compressor valve and piston ring health. Here are some reasons why catching bad valves earlier than later would be advantageous and contribute to safer environment for your operations and maintenance staff:
Assuming that you are taking your suction/discharge pressures and temperatures in the recommended spots, and all orifice plates are taken into account, Blowby can give an accurate indication as to when your valves or piston rings are starting to fail. As your piston rings fail, hot gas at the end of your compression process leak to the other end of the cylinder (piston rings damaged), back into the suction port (suction valves damaged), or back into the cylinder (discharge valves damaged). The leaked "hot gas" elevates the suction temperature, resulting in a much higher discharge temperature than expected, and Blowby will be calculated as a positive value.
Recommended Action Items:
If you have any questions about this topic of conversation, or want to learn how Detechtion Technologies may be able to help your operations achieve Operation Excellence, please do not hesitate to reach out!
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