20 Points Total A Typical Data Center Housing Servers For Cloud Computing Consumes 7 Mwh Of Electricity Per Year The 1 (49 KiB) Viewed 33 times
20 Points Total A Typical Data Center Housing Servers For Cloud Computing Consumes 7 Mwh Of Electricity Per Year The 2 (48.49 KiB) Viewed 33 times
(20 points total) A typical data center, housing servers for cloud computing consumes 7 MWh of electricity per year. The company plans to develop five new data centers, with one each in New England, the Northwest, and the Midwest, and two in California. Calculate the yearly increase e in the company's carbon footprint due to this expansion (10 points). If all the electricity was obtained from concentrated solar power with a parabolic trough, what would be the reduction in the carbon footprint of the new data centers (3 points)? If all the electricity came from nuclear light water reactors, what would be the carbon footprint (3 points)? Discuss the possible side effects and unintended harm of the solar and nuclear options (4 points). Use the information presented in the tables below to solve the exercise. For GWP, use the 100 years horizon characterization factors. GWP for given time horizon Common name Chemical formula 20-yr 300-уг 500-yr Carbon dioxide CO₂ 1 1 Methane CH₂ 25 7.6 Nitrous oxide N₂0 298 CFC-11 ссы 4750 Carbon tetrachloride CC14 1400 HCFC-22 CHCIF₂ 1810 HFC-134a CH₂FCF 1430 SF6 22,800 Sulfur hexafluoride Methyl chloride CHIẾT 13 CO₂ factor N₂0 factor, kunit Item Bituminous coal 2.563 0.044 Natural gas 1.922 0.004 Kerosene 41.22 6.077 Motor gasoline 2.32 Diesel 2,697 Ethanol 1.519 CNG 1.924 Emissions due to the generation of electricity for selected US regions New England 327,8 0.033 0.006 Northwest 382.5 0.007 0.006 Rockies 861.1 0.01 0.013 Midwest 822.1 0.009 0.013 South 614.8 0.01 0.009 California 277.3 0.013 0.003 Above emissions expressed in kg/MWh 366.9 1 72 289 6730 2700 5160 3830 16.300 45 CH₂ factor kg/unit 0.302 0.036 153 1620 435 549 435 32,600 4 Unit kj m² L L L L MWh MWh MWh MWh MWh MWh
Carbon footprint expressed in gCO₂ eq/kWh. Item C footprint Coal - fluidized bed 1144 903 Coal - integrated gasification combustion cycle Coal - pulverized 989 Coal supercritical 768 Natural gas natural gas combined cycle 449 Natural gas natural gas combustion turbine 588 Nuclear boiling water reactor 13 Nuclear light water reactor 9 Nuclear pressurized water reactor 12 Wind - offshore and onshore 11 Hydropower 7 Geothermal enhanced geothermal system 25 Geothermal flash steam 56 Concentrated solar power - dish 22 Concentrated solar power - tower 33 Concentrated solar power - trough 27 Photovoltaic - monocrystalline Si, ground-mounted 40 Photovoltaic monocrystalline Si, rooftop 40 Photovoltaic polycrystalline Si, ground-mounted 69 Photovoltaic polycrystalline Si, rooftop 46 Biopower agricultural residues Biopower animal wastes Biopower forest residues Biopower-herbaceous crops Biopower mill wastes Biopower other wastes Biopower urban wastes Biopower woody crops Biopower cofiring Biopower direct combustion Biopower - gasification 37 40 34 50 15 51 37 43 48 35 47
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