Applied Fluid Mechanics
7th Edition
ISBN: 9780133414622
Author: UNTENER
Publisher: YUZU
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 16, Problem 16.14PP
Seawater (sg 5 1.03) enters a heat exchanger through a reducing bend connecting a
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
PROBLEM 02: Water entering a pump through an 200mm diameter pipe at 27.6 kPa has a flow rate of 0.1 m^3/s. It leaves the pump through a 100mm diameter pipe at 103.4 kPa. Assuming that the suction and discharge sides of the pump are at the same elevation, find the horsepower delivered to the water by the pump (746 watts = 1 HP). Illustrate the problem and show your complete solution.
Provide solutions
A penstock with a diameter of 4 ft and length of 225 ft carries water (γ = 62.4 lbf/ft3) through a 200 ft drop from a reservoir to a turbine. The penstock entrance is 10 ft below the water surface. The flow rate through the system is 500 cfs and water exits the turbine in a free jet with a velocity of 9 ft/s. The Darcy-Weisbach friction factor for the penstock is 0.01. Flow is turbulent and head losses at the entrances and exits of the penstock and turbine are negligible.
(a) Draw the hydraulic grade line and energy grade line. Label transitions points with the height change using symbols (e.g. hL for pipe head loss)
(b) Determine the head delivered to the turbine by the water in ft.(c) If the turbine and generator have a combined efficiency of 80%, determine the power in hp generated by the system.
Table Q3 is given to collect the temperature of hot and cold water at the inlet and outlet positions in the laboratory using Tube Heat Exchanger (TD360a) by varying the cold-water flow rate to investigate the effect of cold-water flow rate on the heat exchanger’s performance.
(a) Complete all the output parameters indicated in the table given in Appendix 1.
(b) Draw the temperature (TH1, TH2, TC1 and TC2) on the vertical vs position (1, 2) on the horizontal axis for each flow and discuss the effect of cold water flow rate change on the exit temperature of both cold water and hot water.
(c) Draw the graph of Energy Balance Coefficient and Mean Temperature Efficiency on vertical axis and cold-water flow rate on horizontal axis. Discuss the effect of flow rate on the Energy Balance Coefficient and Mean Temperature Efficiency based on your finding.
Chapter 16 Solutions
Applied Fluid Mechanics
Ch. 16 - Calculate the force required to hold a flat plate...Ch. 16 - What must be the velocity of flow of water from a...Ch. 16 - Calculate the force exerted on a stationary curved...Ch. 16 - A highway sign is being designed to withstand...Ch. 16 - Compute the forces in the vertical and horizontal...Ch. 16 - Figure 16.13 O shows a free stream of water at 180...Ch. 16 - Compute the horizontal and vertical forces exerted...Ch. 16 - In a plant where hemispherical cup-shaped parts...Ch. 16 - A stream of non-flammable oil (sg 5 0.90) is...Ch. 16 - A 2 -in-diameter stream of water having a velocity...
Ch. 16 - Figure 16.17 O represents a type of flowmeter in...Ch. 16 - Water is piped vertically from below a boat and...Ch. 16 - A 2 -in nozzle is attached to a hose with an...Ch. 16 - Seawater (sg 5 1.03) enters a heat exchanger...Ch. 16 - A reducer connects a standard 6 -in Schedule...Ch. 16 - Calculate the force on a elbow attached to an in...Ch. 16 - Calculate the force required to hold a 90 elbow in...Ch. 16 - Calculate the force required to hold a 180 close...Ch. 16 - A bend in a tube causes the flow to turn through...Ch. 16 - A vehicle is to be propelled by a jet of water...Ch. 16 - A part of an inspection system in a packaging...Ch. 16 - Shown in Fig. 16.20 is a small decorative wheel...Ch. 16 - For the wheel described in Problem 16.22. compute...Ch. 16 - A set of louvers deflects a stream of warm air...Ch. 16 - Prob. 16.25PPCh. 16 - Prob. 16.26PPCh. 16 - Figure 16.22 shows a device for clearing debris...Ch. 16 - Prob. 16.28PPCh. 16 - Figure 16.23 is a sketch of a turbine in which the...Ch. 16 - Repeat Problem 16.29 with the blade rotating as a...Ch. 16 - Repeat Problem 16.29, except with the blade...
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
- Compressed air with a flowrate of 7 kg/min flows through a two-stage turbine and heat exchanger system as follows: At the entrance to the system (point 1), the pressure of the air is 9 bar and the temperature of the air is 403 K. From 1-2 the air passes through a heat exchanger which increases its temperature to 952 K. From 2-3 the air passes through a turbine, with a pressure ratio of 3 (i.e. bevelled p subscript 2 over p subscript 3 equals 3). This first turbine has an isentropic efficiency of 60%. From 3-4 the air passes through a second heat exchanger, which increases its temperature back up to 952 K. From 4-5 the air passes through a second turbine with a pressure ratio of 3 and an isentropic efficiency of 80%. The properties of air are: cp = 1.005 kJ/kgK, cv = 0.718 kJ/kgK, R = 0.287 kJ/kgK, and gamma= 1.4. Select the correct value for each of the following values: The heat transfer to the air in the first heat exchanger (i.e. Q with dot on top subscript 12) in kW: The…arrow_forwardGrape juice is being pumped at 27ºC from an open tank through a sanitary tube (Di = 0.03561 m) for second tank on a higher level. The mass flow rate is 3 kg/s (ρ = 997.1 kg/m³) up to 60 m of linear pipe, with 2 standard 90º elbows (Cff = 1.5) and an angle valve (Cff = 2). the tank supply line maintains a liquid level of 6 m, and the grape juice leaves at a height of 6 m. 24 m above the ground. Calculate the efficiency requirements of the pump that has an efficiency of 65%.arrow_forwardProblem 24 A fluid is flowing in a 100-mm-diameter pipe with a velocity of 2.50 m/s. The fluid pressure is 35 kPa. The elevation of the pipe's center above a given datum is 5.0 m. Determine the total energy head if the fluid is (a) water, (b) ammonia with a specific gravity of 0.83, (c) gas with a specific weight of 12.5 N/m3. Problem 25 A 12" pipe line carries oil of specific gravity 0.811 at a velocity of 80.0 ft/sec. At points A and B. measurements of pressure and elevation were 52.6 psi and 100.0 ft and 42.0 psi and 120.0 ft, respectively. For steady flow, find the lost head between A and B.arrow_forward
- Water at 15°C is transported from a large open tank to the bottom of another open tank above. The surfaces of the two tanks are kept at 160 ft apart vertically. The pipes used have an ID of 3.5 inches, and a total length of the pipe used is 150 ft. In the system, there are two fully open gate valves, 6 90° elbows, and 2 standard tees. The pump used has a mechanical efficiency of 60%, and the volumetric flow rate of water is at 35 (ft^3)/s. Frictional losses due to sudden contraction and expansion are negligible. Determine the Reynolds number of the flowarrow_forwardHANDWRITTEN AND FINAL ANSWER MUST BE IN ENGLISH UNITS. Show solution. An experimental gas turbine engine is under development to increase its mechanical efficiency. It has a turbine efficiency of 95% and compressor efficiency of 85%. The following parameters are provided: P1 = 550 kPa, T1 = 25 deg C, rp = 5.5, T3 = 1450 deg C, Wnet = 5500 kW. Compute for the (a) flow rate and (b) mean effective pressure. Consider Ethane as your working fluid.arrow_forwardA hydraulic pump operates at 140 bars and delivers oil at 0.001 m3/s to hydraulic actuator. Oil discharges through the pressure relief valve (PRV) during 60% of the cycle time. The pump has an overall efficiency of 82% and 15% of the power is lost due to frictional losses in the hydraulic lines. What heat exchanger rating is required to dissipate all the generated heat? Show your work.arrow_forward
- A cylindrical tank, containing water, with a diameter of 3 m and a water level of 5 m is to be drained. Calculate the time taken in minutes to empty the tank for the following cases:6.1 Two orifices fitted in the bottom with a diameter of 50 mm and coefficient of discharge CD = 0.7856.2 A pipe with internal diameter, length, coefficient of friction, of 50 mm, 6 m, 0.008, respectively, and the outlet 2 m below the bottom.6.3 A pipe with internal diameter, length, of 50 mm and 6 m respectively, an outlet 4 m below the bottom, and a valve with a loss factor of 2.8.arrow_forwardThe clean U for an exchanger is 770 BTU/(hr 0 F ft2). Its tube area is 550 ft2. After operating for several months, it is heating water from 40 0F to 150 0F at a flow rate of 200 GPM with a heating fluid on the shell entering at 300 0F and exiting at 170 0 F. Has the overall U decreased significantly? how many 1.0 inch diameter, 20 ft long tubes would it take to equal the 550 ft2 area?arrow_forwardThe Figure shown below is a parallel pipeline system with two branches used to supply lubricating water to the bearings. The main line and two branches use the same size of pipes. The pressures at section 1 and section 2 are and , respectively. The resistance coefficents for two bearings are and . The cross section areas of two branch pipes are . The engergy loss caused by friction can be ignored. The engergy loss cuased by one bend is . (2) Calculate the total engery loss for section 1 and 2_________arrow_forward
- Design a pipe system to supply water at 20° C from the elevated tank to the demand point at the discharge rate of 2.5 m3/s (see figure below). Take these steps:1. Identify your system elements. You have 400 m long pipe system that has one 90° bends. 2. Account for minor losses caused by the bend (use K = 0.18), by the valve (use K = 0.2), entrance loss from elevated tank to pipe (use K = 1) and exit loss from pipe to demand point (use K = 0.5) 3. Set the Energy equation to find the total head loss magnitude (hL). 4. Break down the total loss into friction (hf) and minor losses (hM). Use D-W and minor loss equations to find a relationship between Diameter (D) and Friction Factor (f) (both are unknown). In the equation, replace velocity with Q/A to have only D and f as unknowns. 5. Your other equation to find the 2 unknowns is the Moody diagram. Because both equations are non-linear, numerical iteration is needed. After contacting a nearby vendor, you realize that a convenient pipe…arrow_forwardA. A water jet of diameter 180 mm impinges on the buckets of a Pelton turbine having overall efficiency of 85% while operating under a net head of 500 m and at speed of 420 rpm. Find the specific speed of the turbine. Take coefficient of velocity of the jet as 0.98 and speed ratio as 0.46. B. The pitch circle diameter of a Pelton wheel is 0.9 m. A jet of water of diameter 80 mm gets deflected by an angle of 170° when it impinges on the buckets. The bucket friction coefficient and coefficient of velocity of jet can be taken as 0.93 and 0.97 respectively. If the net head available on the wheel is 500 m and speed ratio is 0.45, calculate (a) the power transferred to to the wheel by the jet, (b) hydraulic efficiency, and (c) specific speed of the turbine. Take mechanical efficiency of wheel as 0.9.arrow_forwardWater is drawn from a reservoir, in which the water level is 240 m above datum, at the rate of 0.13 m3/sec. The outlet of the pipeline is at datum level and is fitted with a nozzle to produce a high-speed jet to drive a turbine of the Pelton wheel type. If the velocity of the is 66 m/sec, calculate a) The power of the jet, b) The power supplied from the reservoir, c) The head used to overcome losses, d) The efficiency of the pipeline and nozzle in transmitting power.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Elements Of ElectromagneticsMechanical EngineeringISBN:9780190698614Author:Sadiku, Matthew N. O.Publisher:Oxford University Press
Mechanics of Materials (10th Edition)Mechanical EngineeringISBN:9780134319650Author:Russell C. HibbelerPublisher:PEARSON
Thermodynamics: An Engineering ApproachMechanical EngineeringISBN:9781259822674Author:Yunus A. Cengel Dr., Michael A. BolesPublisher:McGraw-Hill Education
Control Systems EngineeringMechanical EngineeringISBN:9781118170519Author:Norman S. NisePublisher:WILEY
Mechanics of Materials (MindTap Course List)Mechanical EngineeringISBN:9781337093347Author:Barry J. Goodno, James M. GerePublisher:Cengage Learning
Engineering Mechanics: StaticsMechanical EngineeringISBN:9781118807330Author:James L. Meriam, L. G. Kraige, J. N. BoltonPublisher:WILEY
Elements Of Electromagnetics
Mechanical Engineering
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Oxford University Press
Mechanics of Materials (10th Edition)
Mechanical Engineering
ISBN:9780134319650
Author:Russell C. Hibbeler
Publisher:PEARSON
Thermodynamics: An Engineering Approach
Mechanical Engineering
ISBN:9781259822674
Author:Yunus A. Cengel Dr., Michael A. Boles
Publisher:McGraw-Hill Education
Control Systems Engineering
Mechanical Engineering
ISBN:9781118170519
Author:Norman S. Nise
Publisher:WILEY
Mechanics of Materials (MindTap Course List)
Mechanical Engineering
ISBN:9781337093347
Author:Barry J. Goodno, James M. Gere
Publisher:Cengage Learning
Engineering Mechanics: Statics
Mechanical Engineering
ISBN:9781118807330
Author:James L. Meriam, L. G. Kraige, J. N. Bolton
Publisher:WILEY
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