Which option shows the three main steps of the design process? O sketch ideas, formulate a plan, create a prototy pe
O identify the need, create a concept, provide a product
O find an engineer, outsource manufact uring, create a prototype
O create a prototype, test at trade shows, create the product on large scale

An air compression refrigeration system is to have an air pressure of 100 psia in the brine tank and an allowable air temperature increase of 60°f for standard vapor compression cycle temperatures of 77 f entering the expansion cylinder and 14 f entering the compression cylinder, calculate the coefficient of performance a. 2.5 b 3.3 c. 4.0 d. 5.0