SYSTEM DYNAMICS LL+CONNECT
3rd Edition
ISBN: 9781264201891
Author: Palm
Publisher: MCG CUSTOM
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 7, Problem 7.2P
Refer to the water storage and supply system shown in Figure 7.1.2. The cylindrical tank has a radius of 11 ft, and the water height is initially 5 ft. Find the water height after 5 hr if 1000 gallons per minute are pumped out of the well and 800 gallons per minute are withdrawn from the tank. Note that 1 gallon is 0.13368 ft3.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
13. A cylindrical tank is filled with water at the rate of 5,000 gal/min. The height of water in the tank after 15 minutes is 20.42 ft. What is the diameter of the tank in ft?
1.A vertical cylindrical tank has an orifice for its outlet. When the water surface in the tank is 5 m above the orifice, the surface can be lowered 4 m in 20 minutes, the pressure on the surface being atmospheric. What uniform air pressure must be applied to the surface if the same volume of water is to be discharged in 10 minutes?
Given the sketch shown below, the diameter of the plunger Dp = 8 cm. The Ram diameter is Dr = 48 cm. The efficiency is 100%, the stroke of the plunger is 18 cm. The ram has to raise a load F2 = 2kN. Find:
A) the force f1 exerted on the plunger.
B) the number of strokes needed to raise the load given above by a distance of 10 cm.
C) the volume of oil pumped if the load moves by 20 cm ( using plunger force in a )
D) what will be the new diameter of the ram piston if the new load force is 16 times the force exerted in the plunger the diameter of the plunger is kept to 8 cm.
Chapter 7 Solutions
SYSTEM DYNAMICS LL+CONNECT
Ch. 7 - Prob. 7.1PCh. 7 - Refer to the water storage and supply system shown...Ch. 7 - Prob. 7.3PCh. 7 - In Figure P7.4 the piston of area A is connected...Ch. 7 - Refer to Figure 7.1.4a. and suppose that p\ — p2=...Ch. 7 - Pure water flows into a mixing tank of volume V =...Ch. 7 - Consider the mixing tank treated in Problem 7.6....Ch. 7 - Derive the expression for the fluid capacitance of...Ch. 7 - Prob. 7.9PCh. 7 - Prob. 7.10P
Ch. 7 - 7.11 Derive the expression for the capacitance of...Ch. 7 - Air flows in a certain cylindrical pipe 1 m long...Ch. 7 - Derive the expression for the linearized...Ch. 7 - Consider the cylindrical container treated in...Ch. 7 - A certain tank has a bottom area A = 20 m2. The...Ch. 7 - A certain tank has a circular bottom area A = 20...Ch. 7 - The water inflow rate to a certain tank was kept...Ch. 7 - Prob. 7.18PCh. 7 - Prob. 7.19PCh. 7 - In the liquid level system shown in Figure P7.20,...Ch. 7 - The water height in a certain tank was measured at...Ch. 7 - Derive the model for the system shown in Figure...Ch. 7 - (a) Develop a model of the two liquid heights in...Ch. 7 - Prob. 7.24PCh. 7 - Design a piston-type damper using an oil with a...Ch. 7 - Prob. 7.26PCh. 7 - 7.27 An electric motor is sometimes used to move...Ch. 7 - Prob. 7.28PCh. 7 - Prob. 7.29PCh. 7 - Figure P7.3O shows an example of a hydraulic...Ch. 7 - Prob. 7.31PCh. 7 - Prob. 7.32PCh. 7 - Prob. 7.33PCh. 7 - Prob. 7.34PCh. 7 - Prob. 7.35PCh. 7 - Prob. 7.36PCh. 7 - Prob. 7.37PCh. 7 - (a) Determine the capacitance of a spherical tank...Ch. 7 - Obtain the dynamic model of the liquid height It...Ch. 7 - Prob. 7.40PCh. 7 - Prob. 7.41PCh. 7 - Prob. 7.42PCh. 7 - Prob. 7.43PCh. 7 - Prob. 7.44PCh. 7 - Prob. 7.45PCh. 7 - The copper shaft shown in Figure P7.46 consists of...Ch. 7 - A certain radiator wall is made of copper with a...Ch. 7 - A particular house wall consists of three layers...Ch. 7 - A certain wall section is composed of a 12 in. by...Ch. 7 - Prob. 7.50PCh. 7 - Prob. 7.51PCh. 7 - A steel tank filled with water has a volume of...Ch. 7 - Prob. 7.53PCh. 7 - Prob. 7.54PCh. 7 - Prob. 7.55P
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Similar questions
- Instruction: Show your solution. (Engineering Utilities 2) Problem: A compressor draws in 500 cubic feet per minute of air whose density is 0.079 pounds per cubic feet and discharges it with a density of 0.304 pounds per cubic feet. At the suction, pressure # 1 = 15 pounds per square inches and at the discharge, pressure # 2 = 80 pounds per square inches. The increase in internal energy is 33.8 Btu per pound of air, and the heat rejected from air by cooling is 13 Btu per pound of air. Determine the work done on the air in Btu per minute and in horsepower. (1Btu = 778.16 ft-lbf; 1hp = 42.4 Btu/min)arrow_forwardThe rate of water supply to a hydraulic crane is 90 liters per minute at a steady pressure of 70 bars. Find the input power and the efficiency if the output is 7.5 kW. The power in watts is the product of water supply pressure in N/m sq. and volume flow in M' per second.arrow_forwardTHE PROPLEM: •A pump moves water for a fountain. The pump is attached to a pipe of diameter 10 cm and is located a distance of 1.5 m below ground level. The fountain itself has a nozzle of diameter 2 cm, is located at ground level and produces water at a velocity of 20 m/s. •Find the velocity of water in the pump.•What is the pressure that the pump is operating at? you have to solve the proplem by using the problem solving guideline below Problem solving guideline (version 3): a) Main concept(s) this problem deals with: b) Given information and any “hidden” information (hidden info is often quantities that are zero, constants that are known, or assumptions you are making). Your answers should be in the form: [variable]=[number] [units] c) The final quantity you’re solving for and its units: ____________________________ d) Predict the orders of magnitude that the quantity you’re solving for could be within and include units:…arrow_forward
- 1. Estimate the height to which water will rise in a capillary tube of diameter 4mm of the surface tension is 0.085 N/m and the contact angle is zero degrees? 2. Compute the capillary depression for mercury in a glass capillary tube 3mm in diameter if the surface tension of mercury is 0.625 N/m and the wetting angle is 135 degrees. Given the specific gravity of mercury is 13.6.arrow_forwardYou and your team are assigned to develop a huge hydroelectric power plant, as shown in Figure Q2b, to supply electric power to the residents. In the plant, 98 m3/s of water will flows from an elevation of 110 m to a turbine, where electric power is generated. The turbine employed in this plant having same inlet and outlet diameter, as well as an overall efficiency of 84 %. Unfortunately, friction is unavoidable when the water flow through the long piping system. In this regard, head loss in this plant is expected to be 21 m. Determine if this hydroelectric plant able to supply sufficient amount of electric power output if the desired electric power output to support the residents’ need is 75 MW.arrow_forwardA pump discharges water at a rate of 10 fps with an internal pipe diameter of 3 inches What is the level of water after 15 minutes in a cylinder tank 10 ft in diameter and 12 ft higharrow_forward
- 1.calculate the pressure in a hydraulic system if the pump delivers 180 liters /min, and the engine has a power capacity of 75kw.2.The engine has a given capacity of 60kw, calculate the power requirement in a hydraulic system tool , to know that the engine is capable to support the hydraulic system if a pump delivers 110 liters per minute and the pressure is 227bar.arrow_forwardA worker is pressure washing a deck 4.7 meters above an alligator pond. The pressure washer produces 10 liter per minute steam of water through a nozzle with a diameter of 2.5 millimeters. A 12V battery supplies power to an electronically powered centrifugal pump that draws water from a pond. Assuming a 50% efficient system, what is the amount of electrical current that the battery must supply?arrow_forwardA pumping station wet well operates between 540- and 550-ft elevation. The pump curve is deϐined by the following points: 80 ft at zero ϐlow, 78 ft at 200 gpm, 65 ft at 800 gpm, and 50 ft at 1200 gpm. The pump discharge contains an equivalent of 50 ft of 6-in. pipe. The discharge pipe is 120-ft long and terminates at a splitter box, elevation 570. Using C=100, plot the pump curve and the corrected pump curve. Plot the pump discharge curves at each wet well elevation and for C=100 and C=140. What is the pump ϐlow at the low and high wet well elevations for newand old pipe?arrow_forward
- a pump draws water from a pit through a vertical 30 cm pipe which extends below the water surface. it discharges into a 15 cm horizontal pipe 4.0 m above the water surface. while pumping 60 liters/s, a pressure gage on the discharge pipe reads 165 kpa and a gage on the suction pipe shows a vacuum of 35 kpa. both gages are close to the pump and are separated by a vertical distance of 90 cm. compute the head lost in the suction pipe. compute the change in energy per second between the gages. what is the power output of the pump?arrow_forward8.. An air blower is to deliver 40,000 ft3 /min. Two U-tube gages measure suction and discharge pressures. The suction gage reads a negative 2′′ of water. The discharge gage, located 3 ft above the point to which the suction gage is attached, reads +3′′ of water. The discharge and suction ducts are of equal diameter. What size motor should be used to drive the blower if the overall efficiency is 68% (γ = 0.0750 lb/ft3 for air)? indicate free body diagramarrow_forwardCompute the water horsepower and electrical power needed for the pump and motor with the following assumptions: a.) Fluid is oil with specific gravity of 0.8 (specific gravity = density of oil/density of water) b.) oil needs to be pumped at a height of 20m, neglect friction loss c.) the volumetric flow rate of the pump = 20 GPM d.) assuming the following efficiences, pump efficiency = 75%, motor efficiency = 90%. NEEDS COMPLETE SOLUTION, AS SOON AS POSSIBLE. THANK YOU.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Principles of Heat Transfer (Activate Learning wi...Mechanical EngineeringISBN:9781305387102Author:Kreith, Frank; Manglik, Raj M.Publisher:Cengage Learning
Principles of Heat Transfer (Activate Learning wi...
Mechanical Engineering
ISBN:9781305387102
Author:Kreith, Frank; Manglik, Raj M.
Publisher:Cengage Learning
Fluid Mechanics - Viscosity and Shear Strain Rate in 9 Minutes!; Author: Less Boring Lectures;https://www.youtube.com/watch?v=_0aaRDAdPTY;License: Standard youtube license