Um gás monoatómico com comportamento ideal se submete ao ciclo representado no diagrama Pv do ciclo brayton
no sentido que se indica. O caminho do processo c - a é uma recta no diagrama PV. a) Calcule Q, W e ΔU para cada processo. b) Calcule Q, W e ΔU para um ciclo completo. c) Determine a eficiência do ciclo.

Ahouse has the following electrical appliance usage (1) single 40w lamp used for 4 hours per day (2) single 60w fan used for 12 hours per day (3) single 200w refrigerator that runs 24 hours per day with compressor run 12 hours and off 12 hours find the solar power inverter size in watt with correction factor of 1.25.

On a average work day more than work place firs are reorted

Refrigerant 134a enters an insulated compressor operating at steady state as saturated vapor at -26°c with a volumetric flow rate of 0.18 m3/s. refrigerant exits at 9 bar, 70°c. changes in kinetic and potential energy from inlet to exit can be ignored. determine the volumetric flow rate at the exit, in m3/s, and the compressor power, in kw.