ME 415 Study Guide - Midterm Guide: Horse Length, Ideal Gas, Thermal Efficiency
8 Dec 2017
School
Department
Course
Professor
Document Summary
Only simple calculators required by the department are allowed. Part i. label the following statements as either true (t) or false (f). Question values are in parenthesis: (7) sketch the t-s diagram for an ideal rankine cycle with one open feedwater heater, label each major state, (5) enumerate the major impracticalities of a carnot heat pump system. Page 2 of 8: (4) list two major benefits of including condenser in a steam turbine, (13) sketch the t-s diagram for a brayton cycle with one intercooler and one reheater. Label the major states and use state variables (h, or u) to express the efficiency of the cycle. Points are shown in parenthesis: (30) r-134a is the working fluid in a vapor-compression cycle. Refrigerant enters the compressor as saturated vapor at -4 c. The pressure in the condenser is 10 bar. The refrigerant leaves the condenser as saturated liquid.
