A project has 5 floors of concrete columns, 24 inches on each side and 10 feet high. There are 30 columns per floor. Assume the lumber will be used 3 times and calculate the total cost to build, erect and remove the formwork. No foreman is needed since this is a non-union job. If tabular data is used, use average values. Assume the following material and labor rates. Plywood Lumber Column clampsS10/each which can be used repeatedly Form oil Carpenters Helpers - $25/sheet = $0.88/bf - $20/gal for 400 gal/SFCA application -$26.50/hour $15.00/hour

An external consultant recommends that a plant installs a bank of capacitors for power factor correction. this will reduce the peak electrical demand charges by an average of 93 kw every month. the plant current pays $13 per kw in peak demand charges. the capacitor bank will include 223 kw of fixed capacitors, and 183 of variable capacitors. the fixed capacitors cost $59 per kw, and the variable capacitors will cost $65 per kw. the consultant charges 21% of the equipment costs to install the capacitors. because this project will reduce the demand for the electric utility, they are prepared to provide a one-time rebate of $42 per kw of reduced demand. what is the simple payback period for this project (in years)?