Sustainable energy processes, engineering, Other Engineering

PEME5451/3451 SUSTAINABLE ENERGY PROCESSES
Assignment 5: Transport fuels
VLE submission deadline is Friday 24th February
PART 1: (worth 40%, all parts marked equally)
1.
Using the data in the table below, (i) calculate the land requirements for each crop (in km2) to make enough biodiesel to displace 5% by volume of diesel fuels assuming the total annual amount of UK diesel usage is 20 billion litres (ii) Calculate the displacement by energy from 5% biodiesel by volume (assuming a volumetric energy density of 38.6 MJ/L for diesel and 35.6 MJ/L for biodiesel) (iii) Comment on the suitability of each feedstock for biodiesel production based on its yield and its composition (i.e. its saturated fatty acid (saturates), monounsaturated fatty acid (MUFA) and polyunsaturated fatty acid (PUFA) content.
?
Crop
Average L oil/ha/yr
?
Average Composition of oil Saturates MUFA PUFA
?
Soybean
?
446
15% 23% 58%
?
Sunflower
?
952
10% 20% 66%
???Palm
?4150
?85% 13% 2%
?Assume volumetric energy densities: diesel =38.6 MJ/L biodiesel =35.6 MJ/L
Assume density of biodiesel is 0.86 kg/L
2.
Calculate the theoretical yield (in litres) of bio-ethanol that can be achieved from 10kg of starch using the yeast Saccharomyces cerevisiae (assume the density of ethanol is 0.79 kg/L)
Posted Date: 2/20/2012 5:50:18 PM | Location : United States







Related Discussions:- Sustainable energy processes, engineering, Assignment Help, Ask Question on Sustainable energy processes, engineering, Get Answer, Expert's Help, Sustainable energy processes, engineering Discussions

Write discussion on Sustainable energy processes, engineering
Your posts are moderated
Related Questions
what is the effect of temperature on pn junction diode of component

I WANT TO KNOW WHAT IS DPC TERM MEANING IN CIVIL ENGINEERING

Qualitative risk assessment - fire protection engineering: NFPA 551 discusses the differences between qualitative risk assessment and quantitative risk assessment. Qualitat

how x rays are produced?

The centre of pressure (CP) is defined as the point about which the resultant moment is zero; the net effect of the flow in terms of forces and moments would be the same as if the

Shell-mould Casting is variant of the resin bonded sand technique for casting steel, iron or non-ferrous alloys. The mould is made by a mixture of fine sand (100 - 150 mesh) an

Q.6 Define powder-metallurgy. What are various important techniques for compacting of metal powders ? Ans. Powder metallurgy is a technique of producing metal powders and mak

Couplings: Because of the requirement to make maintenance tasks such as engine removal/refit, gearbox removal/refit easier, it is necessary to have a means of coupling the turb

how to build a earthquake proof building

SUPERSONIC INTAKES At supersonic speeds, the pitot type of air intake is unsuitable due to the severity of shock waves which form and progressively reduce the intake efficiency