ENVE 556 Spring 2018 – Homework 5, Due 5/1/2018
This assignment consists of open answer and calculation problems. Please write your name, student ID number and assignment page number on each page if possible. Responses to open answer questions should be typed or written legibly. Cite the sources for all information used in responses. Calculation problems may be solved by hand or using excel (or similar program) and printed. All calculations must show all equations used, list all assumptions and show units for each calculation. Final answers must be boxed. To maximize partial credit, solution should clearly and legibly show all steps including figures or tables as necessary.
IMPORTANT NOTE: You may work together with other students to develop methods for solving problems; however, all solutions submitted must be your own work.
DUE: Tuesday, May 1 at the beginning of class.
1. A new power plant will be built and the owner is evaluating which fuel will be used. The power plant will utilize 1000 MMBtu/hr of fuel, regardless of fuel type. Possible fuels include natural gas, diesel fuel (distillate oil, No. 2 oil), wood residue, or anthracite coal. Assume the plant will operate 8760 hours per year at maximum load. For each fuel type find the following:
a. Emissions of CO2 in metric tons per year
b. Emissions of CH4 and N2O in metric tons per year
c. Total GHG emissions for each fuel type in units of metric tons CO2eq/year.
d. Which fuel results in the lowest level of total GHG emissions?
2. Your company is evaluating a project which would combust methane being generated at a dairy that currently emits 1500 metric tons per year of methane. Answer the following:
a. Write a balanced chemical reaction for combustion of CH4 with O2 to form CO2.
b. For each metric ton of methane combusted, what is the net reduction in emissions in units of CO2-eq assuming 100% conversion to CO2.
c. If the project will be considered profitable if the cost to reduce each metric ton of emissions is $20 per metric ton CO2-eq or less, what is the maximum total annualized cost for the project to be profitable?
3. Select one aspect of either your life or job that results in emissions of GHGs (Possible options: international travel, transit to and from work or school, a piece of equipment or project at your work, your diet, etc.). Answer the following questions:
a. How does the selected activity result in green house gas emissions?
b. Are the emissions direct or indirect from your perspective?
c. What are some possibilities for how to reduce emissions from the selected activity or project? What societal barriers are there to making this change?
d. Bonus: Estimate the costs of one of the possible changes and compare this to potential reductions in emissions. Do you think the benefits vs. cost are acceptable?
TO GET THIS OR ANY OTHER ASSIGNMENT DONE FOR YOU FROM SCRATCH, PLACE A NEW ORDER HERE