indicator diagram

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indicator diagram

[′in·də‚kād·ər ′dī·ə‚gram]
(engineering)
A pressure-volume diagram representing and measuring the work done by or on a fluid while performing the work cycle in a reciprocating engine, pump, or compressor cylinder.
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A new mathematical model for calculating the p - [phi] indicator diagram of twin screw expander had been developed.
The analysis of the indicator diagrams leads to the conclusion that each operating condition has its own optimum geometry at a given speed of the compressor.
Experimental study on p-V indicator diagrams of twin-screw refrigeration compressor with economizer.
According to the authors' knowledge, this publication is the only publication of an indicator diagram of the compression process of a screw compressor with admission.
The second takes the high-speed pressure measurements necessary to perform the indicator diagram analysis.
This type of diagram is also called an indicator diagram.