Combustion Products

University:
Duke University
Course:
PHYSICS 814 | Introduction to Fluid Mechanics
Academic year:

2023
Views:

145

Pages:

2
Author:

Pemuda H

Ex. 6.6.1 Will ignore combustion products. 5 can have many decimal places, because it's not measured 87.2% Wcideal larger the area in loop, larger the efficiency. 1: Know Pio, Tio 510 2: P20 P20, 52025io hai Wei = We h Now we have P and ho P = Pe + Paux + Posses ng W₁ = mawo ring=mairin fuel = ma (1+f) But we neglect mf alt = We Know WT= Have Site and hui Put=P * Why-hy hu 54 5*: * NOTE: hs hy because the nozzle is fixed so Sw=0 and the process happens so fast that &q=0 so dh=0 * S5 Psi PP hist C ==hs+2 hshsi+ 2 Csi 4- Cst efficiency of nozzle Now you can get Ss C52> acr →Better to go down 2 Cor Per= () Know Por hshy Specific Thrust I ma Ueme uma + Ae (Re-Pa) ma For de Cs, PePs. Pa= PH I Come-uma+Ae (Ps-PH) ma ma = =ma (me (seq-mau) Where will be asked to prove this next class Cseq= Simplifies to ma (1+f) Cseq-u Takeoff Specific Thrust: T ma Fspo = (1+f) Csea For takeoff: diffuser" Turbojet In Flight Real Cycle w/ Air Standard, Variable Properties. diffuser Mass flow rate between two streamlines will always be the same no matter where you go along the streamline Look at graphs in notes LP goes down because of friction Introduction to Combustion Ch.5 What makes up combustion? (1) Exothermic. (2) Fast Oxidation of the Combustion Mixture (3) Light Emission