Ingenieria De Materiales
Páginas: 2 (321 palabras)
Publicado: 16 de diciembre de 2012
E.2.15 Global water consumption has tripled in the last 50 years. What
is the growth rate, r%, in consumption,C, assuming exponential growth?
By what factor will waterconsumption increase between now (2012) and
2050?
E6.3 recycle energies. The aluminum window frame of exercise E6.2 is, in reality, made not of virgin aluminum but of 100% recycledaluminum. Recycled PVC in not available, so the pvc window continues to use virgin material.
Which frame now has the lower emboided energy?
E6.24 make a bar chart of the CO2footprint divided by the embodied energy using the "advanced" facility in the CES level 2 package. which material has the highest ratio? why?
E 6.26 plot a bar chart for theembodied energies of metales and compare it with one for polymers, on a "per unit yield strength" basis , using CES, create the funtion
Hmρσy
where Hm is the embodied energy per kg, ρ is the density, and σy is the yield strength, Do this by using the "advanced" facility in the axis selection box to form
(embodied energy * density)/ yield strength (elasticlimit)
which materials are attractive by this measure?
E8.9. Carry out the eco-audit fot the 2-kw electric kettle of section 8.4, now using the fact that the PP kettle bodyand the cardboard packaging are recycled. Set transport at 12,000 km by air freight, and the duty cycle at 6 minutes (0.1 hours) per day, for 300 days per year, for 3 years, usingthe electricity miz for Australia.
E8.11 Carry out the eco-audit for CO2 for the portable space heater using the bill of materials from Section 8,8`s Table 8,8 of the text,assuming that at end of first life the fan and heat shield are re-engineered to incorporate them into a new product. Use the transportación and duty cycle described there
is the growth rate, r%, in consumption,C, assuming exponential growth?
By what factor will waterconsumption increase between now (2012) and
2050?
E6.3 recycle energies. The aluminum window frame of exercise E6.2 is, in reality, made not of virgin aluminum but of 100% recycledaluminum. Recycled PVC in not available, so the pvc window continues to use virgin material.
Which frame now has the lower emboided energy?
E6.24 make a bar chart of the CO2footprint divided by the embodied energy using the "advanced" facility in the CES level 2 package. which material has the highest ratio? why?
E 6.26 plot a bar chart for theembodied energies of metales and compare it with one for polymers, on a "per unit yield strength" basis , using CES, create the funtion
Hmρσy
where Hm is the embodied energy per kg, ρ is the density, and σy is the yield strength, Do this by using the "advanced" facility in the axis selection box to form
(embodied energy * density)/ yield strength (elasticlimit)
which materials are attractive by this measure?
E8.9. Carry out the eco-audit fot the 2-kw electric kettle of section 8.4, now using the fact that the PP kettle bodyand the cardboard packaging are recycled. Set transport at 12,000 km by air freight, and the duty cycle at 6 minutes (0.1 hours) per day, for 300 days per year, for 3 years, usingthe electricity miz for Australia.
E8.11 Carry out the eco-audit for CO2 for the portable space heater using the bill of materials from Section 8,8`s Table 8,8 of the text,assuming that at end of first life the fan and heat shield are re-engineered to incorporate them into a new product. Use the transportación and duty cycle described there
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