There is a hot water source in New Delhi.Our plan is to use this heat source for heating and hot water supplies of a site of 50 hostels. The outlet temperature of the water from the source is 100°C. Calculate the power required for the pump used to pump the water to the surface. isentropic pump efficiency is 0.9

A completely reversible heat pump has a COP of 1.6 and a sink temperature of 300 K. Calculate the rate of heat transfer to the sink when 1.5 kW of power is supplied to this heat pump

kindly answer only number 5 1  is just a reference  1. A water from Agno River is pumped using a submerged pump at an efficiency of 78% that is discharged to a swimming pool in Itogon which has a free surface of 30 m above the Agno River water level. The pipe that was used has a diameter of 7 cm on the suction line and 5 cm on the discharge line from the pump. If the power requirement of the pump is 5 kW assuming that the elevation difference between the pump inlet and outlet and the effect of the kinetic energy correction factors are negligible, calculate for the followinga) Power requirement by the pump in kW b) Pressure difference across the pumpc) Pumping cost/day(24 hour) if the electricity cost is ₱2.00/kW-h   5. In reference to problem number 1, if another pump was used having a power requirement of 12 hP with an efficiency of 73% in pumping the water at 1.2 ft3/s through a constant diameter of a pipe. Determine the irreversible head loss of the piping system in ft of water if…

Between 300K and 600K is the operating temperature of a pair of heat pumps connected in series. The efficiency of the second heat pump is three times that of the first. Find the input work for the first and second heat pumps if the second heat pump absorbs 20kW of heat and the heat release in the first heat pump is the same.