In the City of Aberdeen, Scotland, a landfill with a gas collection system is in operation and serves a population of XXXXXXXXXXAt a rate of (4.4lb)/(person-day) RDF from the city’s solid waste is...

In the City of Aberdeen, Scotland, a landfill with a gas collection system is in operation and serves a population of 250000. At a rate of (4.4lb)/(person-day) RDF from the city’s solid waste is generated. Gas is produced at an annual rate of 2.8l/lb at the city’s landfill. The gas contains 60% methane. The gas recovery is about 20% of that generated. The heat content of the landfill gas is approximately 480Btu/ft3 (this value is lower than the theoretical value because of dilution of methane with air during gas recovery). The landfill operator and the city have proposed to supply the methane to homes that would be built in the vicinity of the landfill. The homes are estimated to use an average of 95×106 Btu/year for heating and cooking. Peak usage during winter is 1.3 times the average usage. How many homes could be served by the energy generated at the landfill?