Integrated Biochemical Processes for Liquid Biofuels

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The College of Haringey, Enfield and North East London

Added on 2020-04-13

Integrated Biochemical Processes for Liquid Biofuels

The College of Haringey, Enfield and North East London

Added on 2020-04-13

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Integrated Biochemical Processes for Liquid Biofuels_1

Physics 2The energy given by a mole of butanol is determined from the equation;Q=mc∆T where m= the mass of the burnt fuel, c=specific heat capacity of water and ∆T=the temperature change for the reactionQ=0.9*4185.5*37=139377.15J=139.37715kJMoles of butanol burnt=Mass/RFM=0.9/74=0.012 molesThe energy given by 1 mole of the fuel is thus given by0.012 moles=139.377kJ1 mole=139.377kJ/0.012=11,614.75 kJ/molEfficiency for energy transfer for butanol=UsefulEnergyOutputEnergyInput×100%=267611614.75×100%=23.04%From the above calculations, the energy efficiency of butanol is estimated as to be about 23%. This means that almost a quarter of the energy produced when butanol is burnt is the only useful energy that can be tapped and the remaining three-quarters go to waste. In the estimation, the energy losses to the environment through the various processes as well as losses to the water being heated as assumed. From this estimation it is deducible that a significant amount of butanol

Integrated Biochemical Processes for Liquid Biofuels_2

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