An indicator diagram is a chart used to measure the thermal, or cylinder, performance of reciprocating steam and internal combustion engines and compressors. The indicator diagram is used to calculate the work done and the power produced in an engine cylinder or used in a compressor cylinder.

What is indicator diagram explain its importance?

Indicator diagrams are used to assess the performance of each unit of the ship’s main engine. It is based on the indicator diagram that the overall performance of the engine is assessed. If there is any difference, it is important that the problem is rectified before starting the engine.

What is ideal indicator diagram?

Ideal indicator diagram of reciprocating pump is basically a graph between the absolute pressure head in the cylinder and the distance travelled by the piston from inner dead centre for one complete revolution of the crank.

What is an indicator diagram Why is it called so?

indicator diagram in Automotive Engineering An indicator diagram is a map of cylinder pressure plotted against stroke or degrees of rotation for the power stroke or complete cycle of an engine. Indicator diagrams used to be drawn by a mechanical apparatus called an indicator, which is why they still have this name.

What is meant by indicator diagram Class 11?

CBSE Class 11 CBSE Class 11 Physics. cbse, thermo-dynamics. prasanna August 22, 2016, 8:50am #1. Indicator diagram is the graphical representation of a thermodynamic system using two thermodynamic variables, e.g., P and V diagram. Area under PV diagram gives work done in the system.

What is an indicator diagram what is its importance class 11?

An indicator diagram is basically a chart and could be used to record the pressure in the cylinder versus the volume that is swept by a piston in compressors, etc. This diagram was developed by the Scottish inventor James watt and was used in understanding how the efficiency of steam engines could be improved.

What is indicator diagram in reciprocating pump?

Explanation: Indicator diagram of a reciprocating pump is the plot between Pressure head at suction and delivery vs stroke length. The area of the plot is proportional to the work done by the pump.

What is indicator diagram in reciprocating pumps?

➢ The indicator diagram for a reciprocating pump is defined as the graph between the pressure head in cylinder and the distance travelled by the piston from inner dead centre for one complete revolution of the crank. ➢ It defines the work done by the reciprocating pump during one complete cycle.

What is meant by indicator diagram explain how is it used to calculate the work done?

A curve showing variation of volume of a substance taken along the X-axis and the variation of pressure taken along Y-axis is called an indicator diagram or P-V diagram. Hence, in an indicator diagram the area under the curve represents the work done (Fig.).