Assessment Task 1 Questions
1. Write a design brief with specifications and constraints about your crane which you are
going to design and make. Carefully look at the different sections on this page which
indicate what needs to be done.
Design Brief
(4)
Technology

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?