0
1.6kviews
Determine the mass flow rate of fuel in kg/hr. The following data is applicable:

The engine uses n butane (C4H10) as liquid fuel is supplied with 40% excess air. Both fuel and air enter at 1 atmosphere pressure and 298 k. The products of combustion leave at 600K. Heat lost to the surroundings is 30% of power. The engine develops 60kW of power. - | Substance | ho,(kJ/ kgmole) | H298k (kJ/kgmole) | H600k(kJ/kgmole) | |-----------|----------------|-------------------|------------------| | C4H10(I) | -126150 | 0 | - | | O2(g) | 0 | 8624 | 18260 | | N2(g) | 0 | 8660 | 17569 | | CO2(g) | -241830 | 8769 | 22285 | | H2O(g) | -393520 | 9856 | 20402 |

Mumbai university > MECH > SEM 3 > THERMO

Marks: 10M

Year: May 2015

1 Answer
0
13views

Balanced reaction can be given as,

C4H10+7.5O2+7.5×3.76N24CO2+5H2O+7.5×3.76N2

When 140% O2 is used

$C_4H_{10} + 1.4 × 7.5 O_2 + 1.4 × 7.5 × 3.76 N_2 → 4CO_2 + 5H_2O + 0.4 × 7.5 O_2 +1.4 …

Create a free account to keep reading this post.

and 5 others joined a min ago.

Please log in to add an answer.