What is the detention time when… • The flow is 3.0 million gallons per day (MGD) or 3,000,000 gal/day, and • Tank dimensions are 60 feet long by 30 feet wide by 10 feet deep

Air inially occupying a volume of 1 m2 at 100 kpa, 27 c undergoes three internally reversible processes in series. process 1-2 compression to 500 kpa during which pv constant process 2-3 adiabatic expanslon to 100 kpa process 3-1: constant-pressure expansion to 100 kpa (a) calculate the change of entropy for each of the three processes. (b) calculate the heat and work involved in each process. (c) is this cycle a power cycle or refrigeration cycle?