{"id":29304,"date":"2017-08-02T13:55:26","date_gmt":"2017-08-02T05:55:26","guid":{"rendered":"http:\/\/localhost\/help\/?page_id=29304"},"modified":"2018-10-12T16:23:01","modified_gmt":"2018-10-12T08:23:01","slug":"performance-curve-4-5-0","status":"publish","type":"page","link":"https:\/\/oihelp.corporate.ifs.com\/help\/p2-explorer\/explorer-studio\/controls\/performance-curve\/performance-curve-4-5-0\/","title":{"rendered":"Performance Curve (4.5.0)"},"content":{"rendered":"\n

This article applies to versions 4.5.0 - 4.5.1 of P2 Explorer. For the latest, see Performance Curve<\/a>.\u00a0<\/p>\n

The Performance Curve is used to analyse the performance effects of process changes or equipment efficiency (such as the performance of pumps). It\u00a0plots data from various sources against one or more curves, and can be used wherever there is a relationship between two factors, such as temperature and pressure.\u00a0<\/p>\n

The Performance Curve draws curves defined by representative formulas, and then draws an X-Y plot of real data over these curves. In the example below, the red curve represents a pump with a new impeller and the orange curve represents the pump with a worn impeller. The data values are indicated by dots that fall between the two curves.<\/p>\n

Related: Using a Performance Curve<\/a>\u00a0in display mode, Adding a new Performance Curve\u00a0style<\/a>\u00a0<\/p>\n

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Why Use a Performance Curve?<\/h2>\n

The primary function of the Performance Curve is to facilitate informed decision-making for plant or facility operations, by analysing changes to performance due to process changes or equipment efficiency. It\u00a0allows historical operating data to be displayed together with design operating curves. Time series data can be highlighted to show the progressive changes in performance over time, which enables informed decisions to be made regarding operation.<\/p>\n

The Performance Curve offers considerable cost benefits to operators and maintainers of equipment (such as pumps, compressors, and separators), by accurately determining how efficiently their equipment is operating. It draws curves defined by representative formulas, and then draws an X-Y plot of real data over these curves. In the event of a failure, they offer the ability to easily analyse the cause to obtain an effective resolution.<\/p>\n

Example Scenario<\/strong>:\u00a0A pump has a relationship between RPM and output flow. The pump will also have upper and lower limits set for both of these variables for optimum performance. As the impeller wears out, the output flow decreases. This is a reliable indicator that the impeller needs to be replaced. You can action this manually, or if you also have P2 Sentinel installed, a maintenance request can be sent through to the inventory system (such as SAP), and the impeller replacement routine can be managed ahead of failure to reduce downtime and optimise task sequencing.<\/p>\n

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What Type of Curve Should I Choose?<\/h2>\n

There are two types of curve to choose from:<\/p>\n