Download presentation

Presentation is loading. Please wait.

Published bySelina Purser Modified over 2 years ago

1
AE 427 THERMODYNAMIC CYCLE SIMULATION Prof.Dr. Demir Bayka

2
COMPRESSION THE CLEARANCE VOLUME CONTAINS RESIDUAL GASES FROM PREVIOUS CYCLE SOME AMOUNT OF EXHAUST GASES MAY BE INDUCED BY RECIRCULATION (EGR) AIR/FUEL MIXTURE IS INDUCED

3
TEMPERATURE OF THE RESIDUAL GASES WILL BE HIGH (~1500 K) TEMPERATURE OF THE RECIRCULATED EXHAUST GASES WILL BE LOWER (~900 K) TEMPERATURE OF THE AIR/FUEL MIXTURE WILL BE LOWEST (~300 K) COMPRESSION

4
FOR A MIXTURE OF GASES MOLECULAR WEIGHT: SPECIFIC GAS CONSTANT where R 0 =8.314 kJ/kmol-K

5
SPECIFIC HEAT OF A GAS MIXTURE

6
SPECIFIC HEAT RELATIONS units are kJ/kmol-K also

7
ALGORITHMS coefficients A ij can be obtained from pages 131 & 133 of your reference book

8
AIR = OXYGEN + NITROGEN (and some CO2 and Argon) CO2 and Argon may be assumed as part of Nitrogen such that

9
FOR UNIT VOLUME OF O 2 4.773 units of AIR = O 2 + 3.773 units of N 2 ’ O 2 is approximately 21% of AIR (on a volume basis)

10
COMPOSITION OF UNBURNED MIXTURE RESIDUAL GAS FRACTION (f res )

11
COMPOSITION OF UNBURNED MIXTURE RECIRCULATED EXHAUST GAS (EGR)

12
COMPOSITION OF BURNED GAS FRACTION IN UNBURNED MIXTURE (at 1700 K)

Similar presentations

OK

Thermodynamics & Gas dynamics of Real Combustion in Turbo Combustor P M V Subbarao Professor Mechanical Engineering Department Tools for precise estimation.

Thermodynamics & Gas dynamics of Real Combustion in Turbo Combustor P M V Subbarao Professor Mechanical Engineering Department Tools for precise estimation.

© 2017 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Ppt on switching devices and timers Ppt on forward rate agreement formula Ppt on shell scripting training Ppt on airbag working principle of generator Ppt on internet banking system project Ppt on ufo and aliens Ppt on various types of virus and antivirus Ppt on review writing for kids Ppt on area of a parallelogram Ppt on review writing lesson