Question

İdi ner An ideal diesel engine The state of air at the beginning of the e maximum temperature in the eycle air) (using variable specific hea a) Draw the P- has a compression ratio of 20 and uses air as the com 2200K and the cutoff ratio is 1.2. is is 100 kPa and 27C he t) (25marks) V diagram of the diesel cyele termine the internal energies at the beginning and the end of the com pression, end of combustion end ion and net-work outp ) Det Determine the internal Determine the heat input, heat reject termine the thermal efficiency the amount of air in a cylinder at the ch power can the engine ermine the enthalpy before and th of expansion energy before and the ut. cylinder at the beginning of compression is 500 cm', how deliver for an 8 cylinder engine running 2000rpm?

Answer 1

A: 20 1.2:之 T, 273 + 27 300 k G21-2 T2: 931-4 20,2 6203-33 4 (TS.½)ニ1.oos (nro-a314): 1274.74 kJ/丫 ใน : 43 2. 12 Vhqs x 2.012 , 33.53 i.2 -ls: 4(Ts)히.ar, 2 n: 2211 ко/ゲ end us ะ เ$72. íuh- @) 1. E betme Cemrin stat eHeat inpu 60.17:/스 use-63..; o-Gol' or Net w.rkinrt ut Wna): cnn. 9ou, s l17. S 2-46 6 43 3.GS Kw