Using a spreadsheet, develop a chart that shows the relationship between the total fouling resistance as a function of overall heat transfer coeffi cients of 1000 to 5000 W/m 2 K for cleanliness factors of 0.8, 0.85, 0.9, 0.95. Also, develop a chart that demonstrates the increase in surface area required for fouling resistances of 0.0001, 0.001, 0.01, and 0.05 m 2 K/W for an overall heat transfer coeffi cient varying from 1 to 10,000 W/m 2 K.