By taking the indicator diagrams allow the engineer to asses whether the correct timing is being achieved. There are few general guidelines related to engine performance checks: maintaining Pcomp and Pmax close to shop trial model values will result in best engine performance. 1 bar increase in Pmax will approximately reduces SFOC by .30gm/kwh.. Indicator Diagrams, Power card, Draw card, Power calculation, Pressure derivative and Marine engine Power calculation for marine engines +91-9345838485. in 2 stroke engine performance. Reply. Leave a Reply Cancel reply. Your email address will not be published. Required fields are marked * Comment *
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; Compression diagram; Draw card / Out of phase diagram; Light spring diagram; The area of indicator diagram is calculated by.. Indicated power is the total power of engine which is graphically represented by area of cycle on P-V chart. As the actual P-V diagram of an engine is drawn by an indicator mechanism, this power is called indicated power. 17.1.2 Brake Power (BP) The power available at an engine s output shaft is called its brake power.