Question

Starting with, Σn-Σm in out v2 -W= m h+ Σ g mh+ + gz 2 in Out for each exit for each inlet Write down the 1st law of thermodynamics (in the simplest form that is, in terms of work, heat, mass flow rate, internal, or enthalpy) when applied to the following components Nozzle I. Diffuser II. Turbine III.

Answer 1

By ener conservatH on- C2 mcp T + 2 - aN A Aosumption:- Nesleuin Potential energ changes a7 Well insu\GARd woYk inter a.cton inlet k.E neşignble NO So, the equatiun Yeduces C2 2 Wheve velurity at eit, Similuny uy Drftuser orly A1\ arsumptions will be the ditf erence Wil be, ume the Kinehc energy (k E) at the in this Case erit will be h2-hC 2 Ci velo city wheve at

Tybln. ADumons Neglac Negled ponial energy hang es insulade Weu We hi-h2 Compressor Same aumyptions ashat Oturbne abruvh deice Lompremor s a wo So, 9n Case o thYuttung Asrumptions : - K- Unanges P. Chanes O well inuat ed NO woY