You company is in the business of making computer monitors. Through a market survey, the company has identified a demand for a new computer monitor product and has also determined that the market would bear a unit price of $207. To manufacture this new product, however, the company will need to invest in a new production assembly line. You are asked by your boss to consider two options of production assembly lines. • Option #1: A labor-intensive process which has a fixed cost of $348,000 and a variable cost of $153 per monitor.
• Option #2: A highly automated process (capital intensive) that has a fixed costs of $1,264,000 and a variable cost of $94.5 per monitor.
Your job is to figure out how many computer monitors the company has to produce (and sell) to justify the high cost of initial investment for Option #1.

A3-mm-thick panel of aluminum alloy (k 177 w/m-k, c 875 j/kg-k and ? = 2770 kg/m) is finished on both sides with an epoxy coating that must be cured at or above t,-150°c for at least 5 min. the production line for the curing operation involves two steps: (1) heating in a large oven with air at ts,0-175°c and a convection coefficient of h, 40 w/m2. k, and (2) cooling in a large chamber with air at 25°c and a con- vection coefficient of he 10 w/m2.k. the heating portion of the process is conducted over a time interval te which exceeds the ime required to reach 150°c by 5 min (h = r + 300 s). the coating has an emissivity of ? = 0.8, and the temperatures of the oven and chamber walls are 175 and 25°c, respectively. if the panel is placed in the oven at an initial temperature of 25°c and removed from the chamber at a safe-to-touch tempera ture of 37°c, what is the total elapsed time for the two-step curing operation?