Un congelador que usa refrigerante-22 saca 1500 kJ/h de un compartimiento a 22°C. El refrigerante está a 250°C en el evaporador, y la calidad es 85% a la salida del mismo. Si el congelador funciona con un ciclo ideal de compresión húmeda, determine flujo masico del refrigerante (kg/h).

What precautions should you take to prevent injuries when dealing with heavy loads?

Afull journal bearing has a journal diameter of 27 mm, with a unilateral tolerance of -0.028 mm. the bushing bore has a diameter of 27.028 mm and a unilateral tolerance of 0.04 mm. the l/d ratio is 0.5. the load is 1.3 kn and the journal runs at 1200 rev/min. if the average viscosity is 50 mpa-s, find the minimum film thickness, the power loss, and the side flow for the minimum clearance assembly.

Carbon dioxide gas expands isotherm a turbine from 1 mpa, 500 k at 200 kpa. assuming the ideal gas model and neglecting the kinetic and potential energies, determine the change in entropy, heat transfer and work for each kilogram of co2.