Consider a Carnot vapor refrigeration cycle with Refrigerant 134a as the working fluid. The cycle maintains a cold region at 408F when the ambient temperature is 908F. Data at principal states in the cycle are given in the table below. The states are numbered as in Fig. 10.1. Sketch the Ts diagram for the cycle and determine the (a) temperatures in the evaporator and condenser, each in 8R. (b) compressor and turbine work, each in Btu per lb of refrigerant flowing. (c) coefficient of performance. (d) coefficient of performance for a Carnot cycle operating at the reservoir temperatures. Compare the coefficients of performance determined in (c) and (d), and comment.
▯ ▯ Tuesday, August 30, 2016 HDFS▯ Viewpoint▯ -we are active participants in our own lives▯ -we attempt to make sense of our experiences▯ -we construct our understanding using the mental processes available to us, and these mental processes change over the course of development▯ -we attempt to make our new understanding consistent with our previous understand- ing, ▯ -experiences with other people are central to our development, ▯ -experiences with us change the people we relate to in our lives, and ▯ -what we can experience depends on where we are in time and place. ▯ —people around us are going to help us develop. ▯ —we may not be aware of the impact we have on other people by just being around them.
