A heat pump is used to warm a building in the winter. This system implements an ideal vapor-compression cycle with R-134a as the working fluid. The cycle operates between 200 kPa and 800 kPa, with a mass flow rate of 0.02 kg/s. Determine: (a) the heating load that can be met kW (b) the power input required for this system kW (c) the coefficient of performance (d) the warmest outside temperature at which this particular cycle is unable to operate ∘C

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

The filament of an incandescent lamp has a temperature of 2000k. calculate the fraction of radiation emitted in the visible light band if the filament is approximated as blackbody

Water in a partially filled large tank is to be supplied to the roof top, which is 8 m above the water level in the tank, through a 2.2-cm-internal-diameter pipe by maintaining a constant air pressure of 300 kpa (gage) in the tank. if the head loss in the piping is 2 m of water, determine the discharge rate of the supply of water to the roof top in liters per second.