Abrayton-refrigeration cycle with a regenerative heat exchanger operates with a compressor and turbine at 86% efficiency. the compressor receives air at 480°r, 14.7 psi which is compressed to 40 psi. compressed air enters the regenerative heat exchanger at 540°r and cools down to 480°r before entering the turbine. if the refrigeration capacity is 15 tons, calculate: the volume flow rates entering the compressor and turbine. the coefficient of performance.

When at a point two solid phase changes to one solid phase on cooling then it is known as a) eutectoid point b) eutectic point c) peritectic point d) peritectoid point

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.

Afour cylinder four-stroke in-line engine has a stroke of 160mm, connecting rod length of 150mm, a reciprocating mass of 3kg and its firing order is 1-3-4-2. the spacing between cylinders is 100mm. i. show that the engine is in balance with regard to the primary inertia forces and primary 3. a and secondary inertia couples. li determine the out of balance secondary inertia force ii. propose ways of balancing this out of balance force and discuss the challenges that will arise