A horizontal turbine takes in steam with an enthalpy of h = 2.80 MJ/kg at 45 m/s. A steam-water mixture exits the turbine with an enthalpy of h = 1.55 MJ/kg at 20 m/s. If the heat loss to the surroundings from the turbine is 300 J/s, determine the power the fluid supplies to the turbine. The mass flow rate is 0.85 kg/s.
Answers
Answer:
The power that fluid supplies to the turbine is 1752.825 kilowatts.
Explanation:
A turbine is a device that works usually at steady state. Given that heat losses exists and changes in kinetic energy are not negligible, the following expression allows us to determine the power supplied by the fluid to the turbine by the First Law of Thermodynamics:
\(-\dot Q_{loss} - \dot W_{out} + \dot m \cdot \left[(h_{in}-h_{out}) + \frac{1}{2}\cdot (v_{in}^{2}-v_{out}^{2}) \right] = 0\)
Output power is cleared:
\(\dot W_{out} = -\dot Q_{loss} + \dot m \cdot \left[(h_{in}-h_{out})+\frac{1}{2}\cdot (v_{in}^{2}-v_{out}^{2}) \right]\)
If \(\dot Q_{loss} = 0.3\,kW\), \(\dot m = 0.85\,\frac{kg}{s}\), \(h_{in} = 2800\,\frac{kJ}{kg}\), \(h_{out} = 1550\,\frac{kJ}{kg}\), \(v_{in} = 45\,\frac{m}{s}\) and \(v_{out} = 20\,\frac{m}{s}\), then:
\(\dot W_{out} = -0.3\,kW + \left(0.85\,\frac{kg}{s} \right)\cdot \left\{\left(2800\,\frac{kJ}{kg}-1550\,\frac{kJ}{kg} \right)+\frac{1}{2}\cdot \left[\left(45\,\frac{m}{s} \right)^{2}-\left(20\,\frac{m}{s} \right)^{2}\right] \right\}\)
\(\dot W_{out} = 1752.825\,kW\)
The power that fluid supplies to the turbine is 1752.825 kilowatts.
Related Questions
What is not a key characteristic of the engineering of web-based software engineering?
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Answer:
Software reuse is the principal approach for constructing web-based systems, requirements for those systems cannot be completely specified in advance, User interfaces are constrained by the capabilities of web browsers.
What is the primary goal of political parties in televised presidental debates?
to prove which party is best
to present potential candidates
to establish bipartisan agreements
to explain party platforms to voters
i believe it could be c or d, b is the wrong one edge 22
Answers
The primary goal of political parties in televised presidential debates is to: D. to explain party platforms to voters.
What is a political party?A political party can be defined as an organized group of individuals (people) who presumably share common political ideologies, aims, goals, vision, and strategies on how a country should be governed.
This ultimately implies that, a political party is an organization of people that are sharing similar political ideologies and it provides a platform for a chosen candidate to run as its sole representative in an election category.
In this context, the primary goal of political parties in televised presidential debates is to explain party platforms to the electorates or voters.
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It's D I just took the test
Edge 2023 :)
Although authentication and authorization are typically linked together, seemingly like one thing instead of two separate processes, which they most definitely are. They are the first two steps in user access control processing, followed by the accounting step.
Differentiate authentication from authorization as to their processes, objectives, similarities, and importance.
Answers
Authentication verifies identity while authorization determines access rights.
Authentication and authorization are two essential processes in user access control. They are often perceived as a single entity, but they have distinct processes, objectives, and importance. Authentication is the process of verifying the identity of a user, system, or device. The primary purpose of authentication is to ensure that only authorized users are granted access to the system. Authentication verifies the use of credentials like username and password, biometric authentication, smart cards, or tokens. The goal is to confirm the identity of the user or device before allowing access to resources or data. Authorization, on the other hand, is the process of determining whether a user has the right to access specific resources or data. It follows the authentication process and involves setting up access controls and permissions that determine what resources and data a user can access. Authorization is essential in controlling what a user can access after verifying their identity. Proper implementation of both authentication and authorization is vital in ensuring the security of sensitive information and resources.
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what is the actual heading of runway 36 at oshkosh/wittman regional (osh) airport?
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The actual heading of Runway 36 at Oshkosh/Wittman Regional (OSH) Airport is 360 degrees. Runway headings are based on the magnetic compass bearing and are rounded to the nearest 10 degrees.
The numbers used to designate runways correspond to one-tenth of the magnetic compass heading. Therefore, Runway 36 indicates a magnetic heading of approximately 360 degrees. At Oshkosh/Wittman Regional Airport, Runway 36 is aligned in the north-to-south direction. The number 36 signifies that the runway is oriented to magnetic north, which means aircraft take off and land heading north.
It's worth noting that magnetic compass headings may vary over time due to the Earth's magnetic field changes. To ensure the accuracy of runway designations and navigation, airports periodically update the magnetic variation and adjust the runway numbering accordingly.
In conclusion, the actual heading of Runway 36 at Oshkosh/Wittman Regional Airport is 360 degrees, representing a magnetic heading aligned with the north direction.
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Demonstrate binary numerals moving into, and out within the computer?
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Binary numerals are the fundamental representation of numbers within a computer. They are used to represent and manipulate data within the computer's memory and processing units
In a computer system, binary numerals are used to represent data. These numerals consist of 0s and 1s, which correspond to the off and on states of electronic switches within the computer's circuitry. When a binary numeral is input into the computer, it is converted into electrical signals. These signals move through the computer's hardware, passing through components such as registers, arithmetic logic units, and memory cells.
During processing, the computer performs calculations or manipulations on the binary data, following the instructions given by the program. The output generated by the computer is also represented in binary numerals. When the computer needs to display or store the output, it converts the binary numerals back into a human-readable form, such as decimal numbers or alphanumeric characters.
In summary, binary numerals serve as the intermediary representation of data within a computer. They are transformed into electrical signals to be processed by the computer's hardware, and the resulting output is converted back into binary or human-readable form as needed.
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TRUE/FALSE. when a maintenance release methodology is used, all changes, critical and noncritical, are implemented consecutively as they arrive.
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When a service release technique is applied, both critical and noncritical changes are executed one after the other as they come in FALSE.
Describe methodology.
Sometimes the word "method" is interchanged with the word "methodology." A method is a strategy for achieving a specific objective. It is a methodical, organised process for addressing a theoretical or real-world issue. In this sense, methodologies differ from unrestricted and free approaches to problem-solving. For instance, carbon dating is a technique for figuring out the antiquity of organic items, while descriptive analytics is a technique for data
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Which description of Texas's highway system is true?
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Texas's highway system is true in that it is extensive, well-maintained, and includes a combination of interstate highways, state highways, and toll roads, providing efficient transportation and connectivity throughout the state.
Texas's highway system is one of the largest and most extensive in the United States. The system includes over 80,000 miles of highways, roads, and freeways, with over 3,300 miles of interstate highways alone. The highway system in Texas is maintained and managed by the Texas Department of Transportation (TxDOT), which oversees the construction, maintenance, and operation of the state's roadways.
The Interstate Highway System is a crucial part of Texas's highway system, with 25 interstates running through the state, including I-10, I-20, I-35, and I-45. These highways connect Texas to major cities across the United States, including Los Angeles, New Orleans, and Chicago.
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What are the maximum weights for single, tandem and 5-axle combinations?
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To add refrigerant to the system through the suction service valve valve stem must be?
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Answer:
Just cracked off the backseat.
Explanation:
In order to tell whether the lubrication system is working properly, check the
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when traveling on a forklift the carried load must be at the highest possible position during travel. (True or False)
Answers
False. When traveling on a forklift, it is not necessary to have the carried load at the highest position.
Maintaining a lower position for the carried load during travel ensures better stability, visibility, and adherence to the forklift's load capacity limits.
When traveling on a forklift, the carried load should not be at the highest possible position during travel.
It is recommended that the load be kept as low as possible, close to the ground, and tilted back slightly for stability. This is because a high load center of gravity can make the forklift unstable and increase the risk of tipping over.
Additionally, a high load can obstruct the operator's view, making it difficult to see potential hazards and obstacles in the forklift's path.
It is essential to follow safe load handling procedures and the manufacturer's guidelines when operating a forklift to prevent accidents and ensure the safety of the operator and others in the surrounding area.
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Problem 1) Complex Power (50 pts) 1.1. Fill in the table given the power factor for the source must be entirely real. of \( =1 \) (you may assume Zunknown is only one component!) Show work for each bo
Answers
The complex power plays a vital role in analyzing power flow in alternating current circuits, particularly when dealing with power factors of entirely real sources. To tackle this issue, it is essential to comprehend the concept of complex power and its calculation.
Complex power, represented as S, encompasses both real power (P) and reactive power (Q). Real power is given by P = VI cos φ, while reactive power is denoted as Q = VI sin φ. Consequently, complex power can be expressed as S = P + jQ, where V signifies voltage, I represents current, φ denotes the angle between voltage and current, and j signifies the imaginary unit. An entirely real power factor indicates that φ is either 0 or 180 degrees.
In the presented problem, we are provided with a table containing the unknown impedance Z and the entirely real power factor for the source. The objective is to determine the complex power for each case. To accomplish this, the equations for P, Q, and S must be utilized, and the unknown quantities must be solved for.
For instance, suppose Z is 10 + j5 ohms, and the power factor is 1. In this scenario, cos φ = 1 and sin φ = 0. As a result, P = VI cos φ = VI, and Q = VI sin φ = 0. Hence, S = P + jQ = VI. By substituting the given values into the equation, the value of S can be calculated.
By applying this methodology to each case in the table, the missing values can be determined, and the complex power for each case can be found. The solution will manifest as a table containing the impedance Z, power factor, and complex power for each specific case.
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what is a computer device
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article 515 covers a property or portion of a property where ____ are received by tank vessel, pipelines, tank car, or tank vehicle and are stored or blended in bulk for the purpose of distribution.
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Article 515 covers a property or portion of a property where flammable liquids are received by tank vessel, pipelines, tank car, or tank vehicle and are stored or blended in bulk for the purpose of distribution.
Article 515 refers to a section in the National Electrical Code (NEC) that deals with the safety requirements for areas where flammable liquids, gases, or vapors are received, stored, or blended in bulk.
These substances can be received via tank vessels, pipelines, tank cars, or tank vehicles. The primary goal of Article 515 is to minimize the risk of fires, explosions, or other hazards associated with the handling and storage of these potentially dangerous materials.
It sets guidelines for electrical equipment and wiring in these facilities, ensuring that they meet specific safety standards to prevent accidents and protect workers.
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Solve the differential equation by variation of parameters. (Use C1 and C2 as arbitrary constants.)
y'' − 16y = 16x/e^4x
Answers
Refer to the attached images. Final answer is circled.
what are advantages of using sinusoidal Voltages
Answers
Answer:
The advantages of using a pure sine wave for your appliances and machinery are as follows: Reduces electrical noise in your machinery.
translates to no TV lines and no sound system hum.
Cooking in microwaves is quicker.
Explanation:
The smoothest signal is a sine wave, and sine waves are the basis of all functions.
Every other continuous periodic function is a basis function, which means that it can be described in terms of sines and cosines.
For instance, using the Fourier series, I can describe the fundamental Sinusoidal frequency and its multiples in terms of the triangle and square waves.
exercise 6.16 suppose that a voltage Vs= 1/0° at a frequency of 1 mhz is applied to the circuit of exercise 6.15. find the phasor voltages across the resistance, capacitance, and inductance.
Answers
RIs represents the voltage phasor across the resistor. Since the voltage across an inductor is just the inductance multiplied by the current's derivative, is (see "Key Concept", above, for explanation). Vout(t)=2.68·cos(1000·t+26.6°).
How do you represent voltage as a phasor?For a voltage given as v = sin t, take note that the phasor diagrams have been produced at a time of t = /2.
What does phasor mean?A sinusoidally varying quantity, like an alternating current or voltage, is represented by a rotating vector called a phasor. It is easy to simplify the challenges of managing single frequency circuits by using a phasor model.
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_____________ processes are actions that create physical solutions to problems.
a
Production Processes
b
Medical Processes
c
Agricultural Processes
d
Communication Process
Answers
Answer:
yes answer d is correct
Communication Process are actions that create physical solutions to problems. The correct option is d.
What is Communication Process?Human existence and organisational survival both depend on effective communication. It is a process of generating and disseminating thoughts, facts, opinions, and sentiments from one place, individual, or group to another. The Management function of Directing depends on effective communication.
The sending party, message encoding, channel selection, message receipt by the recipient, and message decoding are all aspects of the communication process.
Feedback is when the recipient communicates something back to the original sender. These procedures are actions that result in tangible fixes for issues.
Thus, the correct option is d.
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In a transverse wave, the distance between two adjacent crests is _____ the distance between two adjacent troughs.
a. Less than.
b. Greater than.
c. Equal to.
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In a transverse wave, the distance between two adjacent crests is equal to the distance between two adjacent troughs.
What is transverse wave?
A transverse wave is a type of wave that moves perpendicular to the direction of the wave. This is in contrast to a longitudinal wave, which moves parallel to the direction of the wave.
An example of a transverse wave is a wave in a rope. When a rope is shaken from side to side, the wave travels along the rope, but the displacement of the rope is perpendicular to the direction of the wave.
Another example of a transverse wave is a light wave, which consists of oscillating electric and magnetic fields that are perpendicular to the direction of the wave's propagation.
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In general, equipment terminations for circuits rated 100 A or less, or designed for 14 AWG through 1 AWG conductors, are rated for use on ? . Conductors with a higher rated insulation termination are allowed, provided the conductor's ampacity is selected from the lower rating.
Answers
In general, equipment terminations for circuits rated 100 A or less, or designed for 14 AWG through 1 AWG conductors, are rated for use on conductors with a 60-degree C or 75-degree C rated insulation.
Conductors with a higher rated insulation termination are allowed, provided the conductor's ampacity is selected from the lower rating.What are equipment terminations? Equipment terminations refer to a device or a portion of an electrical conductor that's attached to the terminal, which helps in connecting the conductor to a circuit.
In addition, these equipment terminations usually help in terminating the wire's end to a termination block, connector, or contact.
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technician a says number 1 diesel fuel is the most popular and widely distributed. technician b says number 1 diesel fuel is blended with number 2 to improve starting in cold weather. who is correct?
Answers
Both Technician A and Technician B are correct. Number 1 diesel fuel is the most popular and widely distributed, as stated by Technician A. However, it is also blended with Number 2 diesel fuel to improve starting in cold weather, as stated by Technician B.
Number 1 diesel fuel is a type of diesel fuel that is specifically designed for use in cold weather. It has a lower viscosity and is less likely to gel or freeze in cold temperatures. However, it also has a lower energy content and can result in lower fuel efficiency.
Number 2 diesel fuel is the most commonly used type of diesel fuel and is used in most diesel engines. It has a higher energy content and is more efficient, but it can gel or freeze in cold weather.
By blending Number 1 and Number 2 diesel fuel, it is possible to create a fuel that has improved cold weather starting characteristics while still maintaining good fuel efficiency. This is why Number 1 diesel fuel is often blended with Number 2 diesel fuel in cold weather.
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Boeing, Inc. is attempting to determine whether an existing
machine is capable of milling an engine part that has a design
specification of 5.0mm+- 0.10 mm. The standard deviation of the
process is
Answers
The goal of Boeing, Inc is to determine whether an existing machine can mill an engine part that has a design specification of 5.0mm +- 0.10 mm. The process has a standard deviation of σ = 0.02 mm.
Given that the standard deviation of the process is σ = 0.02 mm. Now, we need to determine if the existing machine can produce a part that meets the design specification using the given standard deviation (σ).The tolerance limit (T.L) can be calculated as;
T.L = (Upper Limit – Lower Limit) / 2 where;
Upper Limit = 5.0 + 0.10 = 5.10 mm
Lower Limit = 5.0 – 0.10 = 4.90 mm
T.L = (5.10 – 4.90) / 2 = 0.10 / 2 = 0.05 mm
The value of T.L = 0.05 mm
The process standard deviation (σ) = 0.02 mm
Using the formula;
P = 0.6827, approximately 68.27% of the parts produced by the existing machine fall within the tolerance limit (5.0 ± 0.10)
With a process standard deviation of σ = 0.02 mm and a tolerance limit of 0.05 mm, approximately 68.27% of the parts produced by the existing machine fall within the tolerance limit (5.0 ± 0.10). It can, therefore, be concluded that the existing machine can produce parts that meet the design specification.
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handy hank’s fasteners sells generic products, like nails, screws, and glue, among other things (not serialized). what is the maximum cardinality between each instance of "customer " and "product"?
Answers
The largest amount of data objects that can take part in a relationship instance, access to a much larger pool of prospective customers.
What does "customer" mean to you?An individual or corporation that purchases products or services from another company is known as a customer. Consumers are crucial to businesses because they generate income; without them, they would cease to exist. If no possessive signal is required, avoid using an apostrophe. Apostrophes can also be employed to denote missing words or contractions by placing a "s" after them.
How do you categorize your clients?
Your consumer groups can be segmented using demographic, psychographic, technological, behavioral, needs-based, or value-based approaches. These models may be used separately or in combination to categorize clients into different groups that share characteristics.
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find x when ln2x=ln4
Answers
Answer:
x=\ln(2)\approx 0.693147181 please mark as brainliest
A nut driver is a variation of a socket wrench, true?
Answers
Answer:
TRUE
Explanation:
Explanation: Nut drivers are sockets that can be snapped on or permanently fixed to a screwdriver-type handle.
in series RL circuit, as the phase angle between the applied voltage and the total current increases, this is the same as: (a.) apparent power decreasing. (b) power factor decreasing. (c) power factor increasing. (d) true power decreasing.
Answers
In series RL circuit, as the phase angle between the applied voltage and the total current increases, the power factor decreases. The correct option is (b) power factor decreasing.
Explanation: What is an RL circuit?An RL circuit is made up of a resistor and an inductor linked in series with a voltage source or current source, such as a battery. The voltage across the resistor and the inductor varies as a function of time due to the time-varying magnetic field inside the inductor. The inductor opposes the change in current, while the resistor opposes the flow of current. As a result, the current in an RL circuit rises slowly when the voltage is first applied, then levels off at a constant value. The total current in the circuit is the vector sum of the current in the resistor and the inductor.In RL circuit, the current does not rise to its maximum value instantly after the voltage is applied, as there is an inductive reactance present. The phase difference between the voltage and current is therefore responsible for the power factor. As the phase angle between the applied voltage and the total current increases in series RL circuit, the power factor decreases.
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What is the acceleration of a 0.8 kg vehicle powered by 0.07 N of force?
Answers
Using the Newton's second law of motion we will see that the acceleration is 0.0875 m/s^2.
What is the acceleration of the vehicle?The acceleration of a vehicle is determined by the force acting on it and its mass, as described by Newton's second law of motion:
F = m * a
where F is the force acting on the object, m is the mass of the object, and a is the resulting acceleration.
In this case, the force acting on the vehicle is 0.07 N, and the mass of the vehicle is 0.8 kg. Substituting these values into the equation above, we get:
0.07 N = 0.8 kg * a
Solving for a, we get:
a = 0.07 N / 0.8 kg
a = 0.0875 m/s^2
Therefore, the acceleration of the 0.8 kg vehicle powered by 0.07 N of force is 0.0875 m/s^2.
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Small steel balls fall from rest through the opening at A at the steady rate of two per second. Find the vertical separation h of two consecutive balls when the lower one has dropped 3 meters. Neglect air resistance.
Answers
Answer:
2.61 m separation
Explanation:
x = xo + vo t + 1/2 at^2 x o and vo = 0 so this becomes
x = 1/2 at^2
Find t when x = 3
3 = 1/2 (9.81)(t^2)
t = .782 sec
then the SECOND ball is at
x = 1/2 a t^2 but t is reduce by 1/2 second drop rate
x = 1/2 (9.81)(.782 - .5)^2 = .39 m
3 - .39 m = 2.61 m
explain why pigtails used to connect receptacles to branch-circuit wiring need not be counted when determining the correct outlet box size.
Answers
Pigtails are short lengths of conductors used to connect receptacles to branch-circuit wiring. When determining the correct outlet box size, pigtails do not need to be counted because they do not contribute to the overall conductor fill within the box.
Outlet box size calculations primarily consider the volume occupied by wire connections, wire nuts, and device yokes, which determine the space needed for safe and efficient electrical installations.
The National Electrical Code (NEC) sets specific guidelines for box fill calculations, which ensure adequate space for proper heat dissipation, prevent overheating, and reduce the risk of electrical fires. Pigtails are not included in these calculations because they are an extension of the main circuit conductors and do not add to the box's capacity.
Moreover, pigtails help maintain a tidy wiring arrangement inside the box, simplifying troubleshooting and maintenance. By excluding pigtails from box fill calculations, electricians can adhere to NEC standards while optimizing space within the outlet box and maintaining electrical safety.
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For Figure Below, if the elevation of the benchmark A is 25.00 m above MSL:
1. Using the Rise and Fall Method, find the reduced level for all points. (Construct the Table)
2. Using HPC Method, find the reduced level for all points. ( Construct the Table).
3. Show all required Arithmetic checks for your work. For Item 1 and 2.
4. What is the difference in height between points H and D?
5. What is the gradient of the line connecting A and J, knowing that horizontal distance = 200
m.
Answers
Answer:
For Figure Below, if the elevation of the benchmark A is 25.00 m above MSL:
1. Using the Rise and Fall Method, find the reduced level for all points. (Construct the Table)
2. Using HPC Method, find the reduced level for all points. ( Construct the Table).
3. Show all required Arithmetic checks for your work. For Item 1 and 2.
4. What is the difference in height between points H and D?
5. What is the gradient of the line connecting A and J, knowing that horizontal distance = 200
m.