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STEAM ENGINES & TURBINES CLASS NOTES FOR MECHANICAL ENGINEERING

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  https://mesubjects.net/wp-admin/post.php?post=14522&action=edit   MCQ St Turnbines  https://www.mesubjects.net/wp-admin/post.php?post=3681&action=edit          Steam Nozzles https://www.mesubjects.net/wp-admin/post.php?post=3613&action=edit    Q. ANS. S Turbine STEAM ENGINE & TURBINE CLASS NOTES FOR MECHANICAL ENGINEERING    Steam engine works with steam made in the boiler. It converts heat energy of steam into mechanical motion.  A steam engine uses Rankine cycle ( modified Carnot Cycle) and is thus…

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NOZZLE AND DIFFUSER CLASS NOTES FOR MECHANICAL ENGINEERING

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NOZZLE AND DIFFUSER CLASS NOTES FOR MECHANICAL ENGINEERING  It is a passage of variable cross section (area decreases from entrance onward). Velocity increases and pressure decreases. This is true as long as velocity at the inlet of the nozzle is sub-sonic.  Velocity is less the velocity of sound or Mach number <1.  Diffuser is a…

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CARNOT AND REVERSED CARNOT CYCLE CLASS NOTES FOR MECHANICAL ENGINEERING

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CARNOT AND REVERSED CARNOT CYCLES CLASS NOTES FOR MECHANICAL ENGINEERING This cycle consists of reversible processes. All processes in nature are irreversible. Carnot cycle is not achievable. It is a power producing cycle. Reversed Carnot cycle is a power consuming cycle. Carnot cycle has alternately isentropic and isothermal processes. Introduction Carnot cycle is a theoretical…

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STEAM NOZZLES CLASS NOTES FOR MECHANICAL ENGNEERING

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STEAM NOZZLES CLASS NOTES FOR MECHANICAL ENGINEERING  Turbines and steam engines use steam. Turbines produce electricity in thermal power plants. Turbines use nozzles to produce a high velocity jet. This jet runs the steam turbine. NOZZLES A nozzle is a passage of variable cross section. A nozzle produces high velocity jet. It converts   (i)…