Question

Methane gas (CH) is used in a combustion chamber with theoretical air to produce heat. The fuel is at 25°C as at 37°C. and the products of combustion are at 1100 K. Determine the amount of best released during this combustion () Q? CH 25C. 0.01 kels 1100K Combustion chamber 8,0 COM N Ait 37°C

Answer 1

() Given datas Fuel temp Tfuel 25°c = 298k 310°K air temp Tan 37°C Exet temp Te Tlook (mixture Methane Cp value of 2253.7 /kg k 1005 +/kg k value CPa of air 1146 d/kg K Cec value of poodlucts of combustion = me=0.01 kg/sec ra 2 Encegy released peco kg of fuel horia Cpa nif har = (ma+map) * Cpc Te - - [ma co Ta + Cre nif Tf hpr ma +1 ) * 1146x 1100 Mf x 1005x 310 + ( 2253-7x298

P3 - Patm = 1 x 1.2 * ( 8.65244? – 11:32 6235 352) 2 Pa -Patm = 32.05 N/m2 Shaft power Pg -9 U2 Ps Axial force X Ps FxU2 Ps 8220 X 11:326235 Ps 93101.65 watts Ps 93-10165 Kratts