Question

Ethane gas (C2H6) is burned with air. The fuel flow rate is 0.1 kg/s and the air flowrate is 2.2 kg/s. Ethane's enthalpy of formation is -84,680 kJ/kmol. Determine: a. The equivalence ratio b. Ethane's lower heating value by deriving it from enthalpy of formation data. c. The heat release rate, in kw d. The mass fraction of oxygen in the products. e. The mass of CO2 emitted per 1000 hours of operation f. The mass of fuel burned per 1000 hours of operation. g. The adiabatic flame temperature, using 1400 and 2200 K as your guesses

Answer 1

hnsecex! hiven thot, The fuel flow丫a to .5 0.1 Kg /5 ethane 3aS (4H6) İ5 bu ned with a: ethoneCH ad bon Ab-6 at b 413 2 -3.5

3.5(1+3 .76) 23.97 24t6 3-54 76)x2397 2, 3 004545 a Y 28.97 术the equivalence atio φ- o-o4545 006215 0 13 .73 11311 . theontical aǐγ·60 37% excess air

Now tombastion with 137% heontical ax. 2o+30125(3)(.16)N1 GHにhe : enthal Py f.brnation--346 8 ο Κ- enthalpy ambush。) of hp-HR İLT 헤42,784구 N5 #10 İS Yapon phase in paoducts,so the enthalpy of mbu 5oaereas e to LHv of mixbe 4.7 595 Kr

heat veleose ate #3 4757: 5 KLO 473 50, ti 62H41450 8 th tHg of Puel the paoduct wili consist Go 2.93 N2 16.8