1. The purchased cost of a shell-and-tube heat exchanger (floating-head and carbon-steel tubes) with 100 m of heating surface was $10500 in 2017. a. What will be the 2017 purchased cost of a similar heat exchanger with 25 m of heating surface if the purchased cost capacity exponent is 0.60 for surface areas ranging from 10 to 40 m? b. If the purchased cost capacity exponent for this type of exchanger is 0.81 for surface areas ranging from 40 to 200 m, what will be the purchased cost of a heat exchanger with 100 m of heating surface in 2021? 2. The purchased cost of a 10-m stainless steel tank in 2015 was $20,500. The 2.5-m-diameter tank is cylindrical with a flat top and bottom. If the entire outer surface of the tank is to be covered with 0.05-m-thickness of magnesia block, estimate the current total cost for the installed and insulated tank. The 2015 cost for the 0.05-m-thick magnesia block was $100 per square meter while the labor for installing the insulation was $150 per square meter. Calculate present cost based on the most recent CEPCI available. Year CEPCI 2022 816.5 2021 708.8 2020 596.2 2019 607.5 2018 603.1 2017 567.5 2016 541.7 2015 556.8 2014 576.1 2013 567.3 2012 584.6 2011 585.7 2010 550.0