What is indicator diagram of steam engine?

What is indicator diagram of steam engine?

What is Indicator Diagram Of Steam Engine? Indicator diagram of steam engine is nothing but a graphical representation which defines with variation in pressure and volume of steam inside the engine cylinder denotes with pv diagram. Working on steam engine, indicator diagram is plotted by the modified Rankin cycle.

What is a piston in a steam engine?

Pistons are used in a steam locomotive to transfer the heat energy of the steam, into mechanical energy for motion. When valves let steam into the gap to one side of the piston, the steam expands forcing the piston to the other end of the cylinder.

What does an indicator diagram indicate?

An indicator diagram is a chart used to measure the thermal, or cylinder, performance of reciprocating steam and internal combustion engines and compressors.

What is an engine indicator?

An engine indicator is an instrument for graphically recording the pressure versus piston displacement through an engine stroke cycle. Engineers use the resulting diagram to check the design and performance of the engine. A mechanical indicator consists of a piston, spring, stylus, and recording system.

What is sketch indicator diagram?

The indicator diagram (pv diagram or power card or work diagram), illustrates the pressure variations in the engine cylinder as a function of the main piston position. The diagram area can be integrated by means of a planimeter, and the mean indicated pressure calculated.

Where is piston valve located?

The valve consists of two piston heads on a common spindle moving inside a steam chest, which is essentially a mini-cylinder located either above or below the main cylinders of the locomotive.

How many types of indicator diagrams are there?

There are four types of indicator diagrams: Power card. Draw card. Compression diagram. Light spring diagram.

What is PMAX and Pcom?

Pcom – Compression Pressure. Pmax – Maximum Pressure. There are 4 types of indicator diagrams that can be taken from the engine cylinder to know the condition and performance of the engine. Power card / Power indicator diagram.

What is an indicator chart in a steam engine?

Specifically, an indicator chart records the pressure of steam versus the volume of steam in a cylinder, throughout a piston ‘s cycle of motion in a steam engine. The indicator diagram enables calculation of the work performed and thus can provide a measure of the power produced by the engine.

What is the main value of the indicator diagram?

The main value of the indicator diagram is that it shows the mean effective pressure exerted on the piston during an entire engine cycle and thus shows the power of the engine. It also shows information about the engine’s design and performance including: Point in the stroke at which steam is cutoff and if the cutoff is sharp or gradual.

An engine indicator is an instrument for graphically recording the pressure versus piston displacement through an engine stroke cycle. Engineers use the resulting diagram to check the design and performance of the engine. A mechanical indicator consists of a piston, spring, stylus, and recording system.

What is diagram factor of steam engine?

Diagram Factor Of steam Engine Diagram factor (K) is the ratio of the area of actual indicator diagram to the area of theoritical or hypothetical indicator diagram.The average value of diagram factor lies between 0.65 to 0.9 Indicator factor defines by the work done per stroke, Work done per stroke also known as,