Water is to be moved from one large reservoir to another at a higher elevation as indicated in the figure below. The loss in availableenergy associated with 6.2 ft³/s being pumped from sections (1) to (2) is 61V²/2 ft²/s², where Vis the average velocity of water in the8-in. inside-diameter piping involved. Determine the amount of shaft power required.Assume z = 56 ft.W shafti 281.988Section (1)behp8-in. inside-diameter pipePumpSection (2)

GivenQ=6.2 ft3/shL=61V22 ft2/s2d=8inz=56ft

Water is to be moved from one large reservoir to another at a higher elevation as indicated in the figure below energy associated with 6.2 ft3/s being pumped from sections (1) to (2) is 61V²/2 ft2/s², where Vis the average 8-in. inside-diameter piping involved. Determine the amount of shaft power required. Assume z = 56 ft. 8-in. inside- diameter pipe Section (2)

Water is to be moved from one large reservoir to another at a higher elevation as indicated in the figure below energy associated with 6.2 ft3/s being pumped from sections (1) to (2) is 61V²/2 ft2/s², where Vis the average 8-in. inside-diameter piping involved. Determine the amount of shaft power required. Assume z = 56 ft. 8-in. inside- diameter pipe Section (2)

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter40: Typical Operating Conditions

Section: Chapter Questions

Problem 10RQ: The seasonal energy efficiency ratio (SEER) includes the energy used in the _____and _____cycles.

See similar textbooks

Similar questions

1. As a junior city engineer of a municipality, you are tasked to design the specifications of the pump with 3650 cu.m/day. The water source in the municipality is from an open reservoir and will supply to a pressure tank that will distribute to the municipality. open 4l Pressure reservoir Tank 70 m 15 m Pump Determine the following specifications of the pump and piping system (assume fluid stagnation at the pump). Velocity head at pt.1 to 2 if the diameter of the pipe is a.) 200 mm b.) Suction pressure of the pump in kPa (Pressure at pt. 2). c.) Velocíty head at pt.3 to 4 if the diameter of the pipe is 150 mm d.) Discharge pressure of the pump in kPa (Pressure at pt. 4). Assume atmospheric pressure at the pump. If an air vent is installed at the pipe just right before the pressure tank with diameter of 20 mm, what is the velocity of discharge in m/s? The height of the pressure tank is 12 m, what is the flowrate in cu.m/hr at pt.5 if the diameter of the pipe is 150 mm? e.) f.)
%3D For the water pump shown in the figure below, p1 = 13.3 psia and p2 = 49.5 psia. The temperature of water is 60 °F. P2) Patm = 14.7 psia d2 = 4.0 in. di = 6.0 in (P1 16.0 ft 8.0 in. Determine the volume flow rate. ft3/s Q = Determine the minimum power input to the water pump. w, = i ! hp Determine the actual power if the hydraulic efficiency is 75% and losses in the motor and bearings are negligible. W actual i ! hp
The initial condition of air in an air compressor is 100 Kpa and 25 degrees Celcius and discharges air at 725 Kpa. The bore and stroke are 276 mm and 186 mm respectively with 3 % clearance runningat 6 rev/sec.1.1 Illustrate the PV diagram 1.2 Discuss the processes in PV diagram 1.3 Solve the volumetric effieciency
Please include a diagram.A pump supplies water at a flow rate of 4ft3/s from an open reservoir through a horizontal 8-in sched 40 pipe. The head loss from the reservoir to the suction of the pump is 2 ft-lbf/lbm, and the discharge is at 90 psig into a 6-in sched 80 pipe. The pump has an efficiency of 65% answer the following:a.) The head that must be delivered by the pump to the water is ________ or energy developed by the pump or output energy of the pumpb.) input energy to the pumpc.) Rated power of the pump in kW
A Pelton wheel develops 70 kW under a head of 60 m of water. It rotates 400 rpm. Overall efficiency is 80%. Find the discharge rate in m³/s. Use the equation below, where P is power of the turbine shaft and no is the overall efficiency, where specific weight of water is is 9.80 kN/m³ no P YQH A generator is driven by a small, single-jet Pelton turbine designed to have a power specific speed sp 0.20. The effective head at nozzle inlet is 200 m and the nozzle velocity coefficient is 0.985. The runner rotates at 880 rev/min, The turbine overall efficiency is 80%. Find (a) the power delivered by the shaft of the turbine and (b) find the power delivered by the water to the turbine. where density of water is 1000 kg/m³ and g is 9.80 m/s². Use Stup Ω P/p (gHE)* Overall efficiency ne and Power developed at turbine shaft hydraulic power P YQH
Pump Horsepower in Brine System. A pump pumps 0.200 ft3/s of brine solution having a density of 1.15 g/cm3 from an open feed tank having a large cross-sectional area. The suction line has an inside diameter of 3.548 in. and the discharge line from the pump a diameter of 2.067 in. The discharge flow goes to an open overhead tank, and the open end of this line is 75 ft above the liquid level in the feed tank. If the friction losses in the piping system are 18.0 ft lbf/lb m, what pressure must the pump develop and what is the horsepower of the pump if the efficiency is 70%? The flow is turbulent.
The initial condition of air in an air compressor is 138 kPa and 41 deg. C and discharges at 447 kPa. The bore and stroke are 368 mm and 423 mm, respectively. The percent clearance of 10 % running at 366 rpm. Find the volumetric efficiency. Do not multiply the final answer by 100. Simply input the answer using 2 decimal places (Example answer is 0.71)
P: 50,000 ii. 2m Pa 50mm Pump VALVE P= 175,000 25mm Pa TURBINE P= 40,000 Pa с 25MM The diagram above shows the set up for a pump and water turbine unit at a power generation company in Point Lisas. i. The water has a temperature of 25°C and the head losses accumulated by the valve and fittings is 2 N.m/N between points A and B. If the flow rate is 0.02m³/s and the pump is 75% efficient, determine the power put into the pump. Determine the energy removed by the turbine and use it to determine the mechanical efficiency of the turbine given that 2450W of power is outputted from the turbine.
(Q1) A small reservoir based plant is planned in a remote location to supply water into a micro turbine to generate electricity. The height of water level in reservoir is 10 m. The micro turbine is to be located at ground level at a distance of 200 m from the reservoir. To generate sufficient power, the minimum head (total head) required at the turbine inlet is 9 m with the flow rate of 0.4 m3/s. The loss coefficient (KL) at the inlet to the pipe from reservoir is calculated as 0.4. Determine the minimum diameter of the cast iron pipe (roughness, e = 0.26 mm) required for the proposed design. Take following properties of the fluid: density (EGL). 1000 kg/m3, viscosity = 0.001 kg/m-s. Draw hydraulic grade line (HGL) and energy grade line Reservoir H = 10 m Inlet, K, = 0.4 Pipe Turbine 200 m
Your second customer wants to determine the required electrical power, which will be used to pump water with the following design specifications: - The pump loses 3 kW in the form of heat to its surrounding. The inlet and the exit conditions of the water are as indicated in Figure 2. The pipe diameter is 5 cm.
2. A pump draws water from a lake delivered to a height of 50 meters above the lake and encounters 15 meters of headloss. Determine the pump power requirement in Kilo-Watts to deliver a constant supply of 500 Liters per second? The correct answer has a margin of 1 from exact answer. Velocity head is neglected.
Power for Pumping in a Flow System. Water is being pumped from an open water reservoir at the rate of 2.0 kg/s at 10°C to an open storage tank 1500 m away. The pipe used is Schedule 40 3 1\2 -in. pipe and the frictional losses in the system are 625 J/kg. The surface of the water reservoir is 20 m above the level of the storage tank. The pump has an efficiency of 75%. a. What is the kW power required for the pump ? b. If the pump is not present in the system, will there be a flow?