A compressor steadily compresses air from 100 kPa and 280 K to 600 kPa and 400 K. Mass flow rate of air is 0.02 kg/s. The compressor uses 2.74 kW of power. Determine the heat loss from the compressor (in kW.)
Answers
The heat loss from the compressor is 2.66 kW, calculated by subtracting the work done by the compressor (2.74 kW) from the input power.
To determine the heat loss from the compressor, we first calculate the work done by the compressor. The work done is given by the formula: Work = mass flow rate * (exit pressure - inlet pressure) * specific volume.
In this case, the mass flow rate is 0.02 kg/s, the exit pressure is 600 kPa, the inlet pressure is 100 kPa, and the specific volume is determined using the ideal gas law.
Using the ideal gas law, we can calculate the specific volume: specific volume = R * temperature / pressure. Here, R is the specific gas constant, which depends on the properties of the air.
Assuming air behaves as an ideal gas with R = 0.287 kJ/kg·K, we can calculate the specific volume at the exit and inlet conditions.
Next, we calculate the work done by substituting the values into the formula. The result is 10 kW, which represents the work input to the compressor.
The heat loss from the compressor can be determined by subtracting the work done by the compressor from the input power of 2.74 kW.
The difference is 2.66 kW, indicating the amount of energy lost as heat during the compression process.
In conclusion, the heat loss from the compressor is 2.66 kW, which is obtained by subtracting the work done by the compressor (2.74 kW) from the input power.
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Related Questions
In the fully developed region of flow in a circular pipe, does the velocity profile change in the flow direction?
Answers
Answer:
No, the velocity profile does not change in the flow direction.
Explanation:
In a fluid flow in a circular pipe, the boundary layer thickness increases in the direction of flow, until it reaches the center of the pipe, and fill the whole pipe. If the density, and other properties of the fluid does not change either by heating or cooling of the pipe, then the velocity profile downstream becomes fully developed, and constant, and does not change in the direction of flow.
Consider 17-bit floating point representation like IEEE 754 with 5 bits for the exponent and the bias as 15. Which of the following expression would cause underflow?
A. 58.971 x 2⁸
B. 2.640625+0 - [infinity]
C. 2-⁸+22.444
D.-21.018 x 2 rank 13
E. None of the above
Answers
The correct option to the expression that would cause underflow is:
D.-21.018 x 2 rank 13
Let's write the 17-bit floating point representation with 5 bits for the exponent as mentioned in the question, where b is the bias value of 15. The number would be normalized to have a first bit of 1 and then stored with 17 bits.
In the IEEE 754 standard, underflow happens when a value that is too small to be represented as a non-zero number is transformed into zero because of rounding errors. The underflow happens when the exponent of the number is smaller than the minimum allowed exponent.
Based on the given expression, the one that would cause underflow is D. -21.018 x 2 rank 13, because when we use the given 17-bit floating point representation to convert the value into a floating point number, it will be a small number with a negative exponent, i.e., -21.018 × 2^(-13). This number has a binary exponent of `-11010` (in two's complement), which is less than the minimum exponent that can be represented using the bias value of 15 (i.e. -15).
Hence, the correct option is D. -21.018 x 2 rank 13.
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(a) What are the usual causes of mechanical failure in the component or system? ( b ) What are the general types of mechanical failure ?
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Answer:
Some types of mechanical failure mechanisms are: excessive deflection, buckling, ductile fracture, brittle fracture, impact, creep, relaxation, thermal shock, wear, corrosion, stress corrosion cracking, and various types of fatigue. ... Cascading failures, for example, are particularly complex failure causes.
what industry standards need to be referenced for ethernet applications and cabling
Answers
Answer:
Explanation:
For Ethernet standards, you would reference the IEEE (Institute of Electrical and Electronics Engineers) standards body and the 802.3 series of standards.
Type MC cable provides an effective ground-fault current path and is recognized by the NEC as an equipment grounding conductor when _____.
Answers
In accordance with 250.118(1), A MC cable includes an insulated or uninsulated equipment grounding conductor.
When does MC cable is recognized by the NEC as an equipment grounding conductor?
Type MC cable that provides an efficient ground-fault current path in compliance with one or more of the following is :
1. In accordance with 250.118(1).2. The interlocked metal tape-type MC cable's combined metallic sheath and uninsulated equipment grounding/bonding conductor that is listed and identified as an equipment.3. The smooth or corrugated tube-type MC cable's metallic sheath, or the combined metallic sheath and equipment grounding conductors, that is listed and identified as an equipment grounding conductor.To know more about MC cable, visit: https://brainly.com/question/14934410
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The pyramids in Egypt are cited as an ancient world wonder. What is the main
reason that the pyramids are important to the study of engineering?
Answers
The pyramids are important to the study of engineering because they were some of the first structures built using engineering principles. The pyramids are an example of how engineering can be used to create amazing structures.
What is pyramid?
A pyramid is a structure with triangular exterior surfaces that converge to a single step at the summit, giving the shape the shape of a pyramid in the geometric sense. A pyramid's base can be trilateral, quadrilateral, or any polygon shape. A pyramid, as a result, has at least three exterior triangle surfaces. A typical variant is the square pyramid, which has a square base and four triangular exterior surfaces. The design of a pyramid, with the majority of the weight closer to the bottom and the pyramidion at the apex, means that less material will be pushed down from above. This weight distribution enabled early civilizations to build stable massive constructions.
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. The job of applications engineer for which Maria was applying requires (a) excellent technical skills with respect to mechanical engineering, (b) a commitment to working in the area of pollution control, (c) the ability to deal well and confidently with customers who have engineering problems, (d) a willingness to travel worldwide, and (e) a very intelligent and well-balanced personality. List 10 questions you would ask when interviewing applicants for the job.
Answers
Answer:
Tell us about your self Are your confident that you are the right candidate for this positionwhy should i hire youDo you like working under supervisionHow do you like to work ( in a group or individually )What is your ultimate workplace goalwhat are your future plansWhat do you expect from the Organization when given the jobDo you like taking on critical problemsHow long can you work in this positionExplanation:
For a job of applications engineer which require excellent technical skills, commitment to working , ability to deal well and confidently with customers a willingness to travel and very intelligent and well-balanced personality.
The ten questions you should ask Maria to determine if she is qualified for the job are :
Tell us about your self ( functions you have )Are your confident that you are the right candidate for this positionwhy should i hire youDo you like working under supervisionHow do you like to work ( in a group or individually )What is your ultimate workplace goalwhat are your future plansWhat do you expect from the Organization when given the jobDo you like taking on critical problemsHow long can you work in this positionwhat is the answer What will finally break the internet?
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Compare and contrast the base-10 number system with the binary system. Point out how the two systems are used and how they work.
Answers
The base-10 number system, also known as the decimal system, is a numbering system that uses 10 digits: 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9. Each digit in a base-10 number represents a specific value based on its position, with the rightmost digit representing the ones place, the next digit to the left representing the tens place, and so on.
What is the binary system?The base-10 number system, also known as the decimal system, is a numerical system that uses ten digits (0-9) to represent all numbers. It is the system we use in our everyday lives, and it is based on the concept of place value, where each digit represents a power of 10.
On the other hand, the binary system is a numerical system that uses only two digits (0 and 1) to represent all numbers. It is commonly used in computing and electronics because it is easy to represent data as a series of binary digits, or bits.
Therefore, One key difference between the two systems is that the base-10 system is much more intuitive for humans because it is based on the number of fingers we have. We naturally count in groups of 10, which makes the base-10 system very easy for us to understand and use. In contrast, the binary system can be difficult for humans to work with because it is not based on anything in the physical world.
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How to create Profit Centric Design Professionals ?
Answers
Profit-Centric Design Professionals can be developed by training and educating people on design principles, business strategies, and user research in order to create profitable solutions.
What does profit-centric mean?A profit center is a branch or division of a company that directly contributes to the bottom-line profitability of the corporation. A profit center is treated as a separate business, with revenues recorded separately.
Developing Profit Centric Design Professionals entails design, business, and user research training in order to create profitable solutions for clients.
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A propane tank of 1 m 3 is at 150 kPa, 300 Kand connected by a valve to another tank of 0.5 m 3 with propane at 250 kPa, 380 K. The valve is opened and the two tanks come to a uniform state at 320 K. What is the final pressure
Answers
Let's solve this question using the ideal gas law:P1V1/T1 = P2V2/T2We know that the first propane tank has a volume of 1 m3 and is at 150 kPa and 300 K.
Therefore:P1 = 150 kPaV1 = 1 m3T1 = 300 KThe second propane tank has a volume of 0.5 m3 and is at 250 kPa and 380 K. Therefore:P2 = 250 kPaV2 = 0.5 m3T2 = 380 KWe want to find the final pressure when the two tanks are connected and reach a uniform state at 320 K. Let's call this final pressure Pf.
We can rewrite the ideal gas law as:P2 = (P1V1T2)/(V2T1)Now we can substitute in our values:Pf = (150 kPa * 1 m3 * 320 K)/(0.5 m3 * 300 K)Pf = 320 kPaTherefore, the final pressure is 320 kPa.Answer: The final pressure is 320 kPa.
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Leather palm gloves can protect your hands from what hazards
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Answer:
They protect the entire hand from abrasion and punctures, and are a dependable, comfortable glove for a wide variety of jobs. Drivers' gloves are available in various types of leathers and can be unlined or lined for cold weather. Leather palm gloves provide maximum protection against abrasive and puncture hazards.
Gloves with leather palms offer the best defense against abrasive and puncture risks. They have leather palms and fingers and are constructed of dependable cotton or canvas.
What is abrasive?Abrasive is defined as a substance, sometimes a mineral, used to shape or polish a product by rubbing, which causes some of the workpiece to be removed due to friction. Abrasives are a particular kind of extremely hard material that are utilized in a variety of residential, industrial, and technological applications. A portion of the work piece is worn away when the abrasive is rubbed against it.
These leather gloves each offer particular levels of comfort, protection, and durability. Some of these leather gloves are suitable for use by those handling dangerous chemicals and sparks. Some can provide cut protection to an extreme degree. For workers who handle heat and water, certain types of leather gloves are recommended.
Thus, gloves with leather palms offer the best defense against abrasive and puncture risks. They have leather palms and fingers and are constructed of dependable cotton or canvas.
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how would i be able to make a simple mechanism that will feed my bird in a pull of a lever, and know when to refill itself?
Answers
Answer: Take two cups. ...
Tie a string to one hole on a cup, then thread it through the hole on one end of a stick.
Tie the end of the string to the other hole in that cup.
Now, take the second cup. ...
Hold the stick on its side, with the cups hanging down. ...
Put weights in the cups to balance.
Explanation:
Suppose you are planning a party, and your objective is to have an enjoyable party for all guests. An outdoor barbecue would be the best but only if the sun shines; rain would ruin the barbecue. On the other hand, you could plan an indoor party. This would be a good party, not as nice as an outdoor barbecue in the sunshine but better than a barbecue in the rain. Of course, it is always possible to forego the party altogether!
Construct an influence diagram and a decision tree for this problem.
Answers
The decision tree is continuing support for judgment, that utilizes a tree-like decision model, and its possible effects, such as the chance event results, resources as well as utility costs. It is a way of displaying an automated system containing the only conditional statement of control, and the further discussion can be defind as follows:
To make it pleasant for all guests concerned, the host needs to decide on the course of the barbeque party.Plan and draw up a decision tree that will show the potential results based on the different site conditions. The weather conditions that will prevail at the site on that particular day of the party are the factor of concern about the decision.Start the tree with such a single node the day of the party which will provide a view of the weather.Please find the diagram in the attachment file.
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A specimen of steel having an initial diameter of 0.503 in was tested in tension using a gauge length of 2 in. The following data were obtained for the elastic and plastic states: Elastic State Load P lbf Elongation in 1 000 0.0004 2 000 0.0006 3 000 0.0010 4 000 0.0013 7 000 0.0023 8 400 0.0028 8 800 0.0036 9 200 0.0089 Plastic State Load P lbf Area A; in? 8 800 0.1984 9 200 0.1978 9 100 0.1963 13 200 0.1924 15 200 0.1875 17 000 0.1563 16 400 0.1307 14 800 0.1077 Note that there is some overlap in the data. (a) Plot the engineering or nominal stress-strain diagram using two scales for the unit strain , one scale from zero to about 0.02 in/in and the other scale from zero to maximum strain. (6) From this diagram find the modulus of elasticity, the 0.2 percent offset yield strength, the ultimate strength, and the percent reduction in area. (C) Characterize the material as ductile or brittle. Explain your reasoning. (d) Identify a material specification from Table A-20 that has a reasonable match to the data.
Answers
400 x 8 = 50, 40,000 x 800 = 50, and 40,000 x 80 = 500 will be the correct formulae. Then C, D, and E are the appropriate choices.
A fraction number is a number that denotes a portion of an entire number, where the entire number itself can be any integer. It takes the shape of a denominator and a numerator. Let's examine each option, and then we have A. 400 ÷ 80 ≠ 50 B. 4, 000 ÷ 80 ≠ 5 C. 400 ÷ 8 = 50 D. 40,000 ÷ 800 = 50 E. 40,000 ÷ 80 = 500. 400 x 8 = 50, 40,000 x 800 = 50, and 40,000 x 80 = 500 will be the correct formulae. Then C, D, and E are the appropriate choices. The maximum stress on the stress vs. strain graph corresponds to the tensile strength, which can be roughly calculated at 370Mpa (complete plot)
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what type of nuclear decay produces energy instead of a particle?
Answers
The type of nuclear decay that produces energy instead of a particle is nuclear fusion.
Nuclear fusion is a process in which two atomic nuclei join together to form a larger nucleus, releasing a significant amount of energy in the process. The energy produced is much greater than that produced by nuclear fission, which is another type of nuclear decay that involves the splitting of an atomic nucleus into smaller fragments. Nuclear decay is a process of spontaneous transformation of an unstable atomic nucleus to a more stable configuration accompanied by the release of energy or the emission of subatomic particles. There are several types of nuclear decay such as alpha decay, beta decay, and gamma decay. This question is concerned with the type of nuclear decay that produces energy instead of a particle. Nuclear fusion is a type of nuclear reaction that involves the merging of two atomic nuclei to form a single, more massive nucleus. During the process, a significant amount of energy is released in the form of light, heat, and radiation. This energy is the result of the conversion of a small portion of the mass of the atomic nuclei into energy, as predicted by Albert Einstein's famous equation, E = mc². Nuclear fusion is the energy source of stars like the Sun and other main-sequence stars. It is also being developed as a potential source of energy on Earth, through experiments like the International Thermonuclear Experimental Reactor (ITER) project, which aims to harness nuclear fusion to produce clean and sustainable energy.
In conclusion, the type of nuclear decay that produces energy instead of a particle is nuclear fusion. It is a process in which two atomic nuclei join together to form a larger nucleus, releasing a significant amount of energy in the process. Nuclear fusion is the energy source of stars like the Sun and other main-sequence stars and is being developed as a potential source of energy on Earth.
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Legal metrology would protect consumers from businesses that do not take measurements according to defined measuring regulations.
Answers
From what my research concluded, true
Za answa iz:
True
Twust meh
Which of the following is a measurement at the nominal level?
A-personal income in a year
B-student grades
C-the color of a person's hair (blond, brunette, redhead)
D-temperature
Answers
Answer:
A-personal income in a year this is the answer
Is the iced water a pure substance? Why ?
Answers
Answer:
ice water is pure depending on the purity of the water that was frozen
A ship, carrying freshwater to a desert island in the Caribbean, has a horizontal cross-sectional area of 2800 m2 at the waterline. When unloaded, the ship rises 6.00 m higher in the sea. How much water was delivered?
Answers
16,800 cubic m volume of water was delivered to a desert island in the Caribbean which has a horizontal cross sectional area of 2800 m² on ship.
How to calculate volume of water ?Each millilitre of water has a capacity of one cubic centimetre (1cm3). Some atoms have different sizes and masses. The order in which specific atoms appear on the periodic table depends on how many protons are present in an atom's nucleus. Even though an atom is smaller than another atom, it may nonetheless have more mass. How much water is within a container depends on its shape and how much of it is there. To determine the volume of a square or rectangular vessel, you need to know its length, width, and depth.A cross sectional area of 2800 sq m rose 6 m,
Thus 2800 x 6 = 16800 cubic m of seawater was un displaced
Surface density varies by location and temperature.
A standard figure is 1023.6 kg / cubic m. or 102.36 times denser than pure fresh water.
Therefore the 16800 cubic m of sea water displaced weighed more than the same volume of fresh water.
The volume of fresh water then was greater, 16800 x 102.36 / 100 = 17196.48 cubic meter.
Ignoring the density difference, i.e. 16800 cubic meter .
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To measure an object accurately, what point on the ruler would you align with the object edge
Answers
Answer:
Along the zero to measure an object on a ruler
Assuming the machine is already in position to commence drilling, list the cutting tool sequence used to create a #10 threaded hole in an aluminum workpiece on a manual milling machine.
Answers
1. Drill in the center.
2. Tap drill size 22.
3. 10-24 tap.
These are the necessary steps for using a manual milling machine to cut a threaded hole in an aluminum workpiece.
What is manual milling machine?
Using a multi-toothed cutter that is fed into a moving workpiece, the Manual Mill is a milling machine that removes metal. A manual mill can machine rather complex items since it can remove material along all three axes (X, Y, and Z).
To hold a shaft between centers, a hole is drilled on its axis using a center drill. Although the spot drill (which has a simpler geometry) has taken its place, it was also used to drill center holes on machining centers.
When drilling aluminum at slower cutting speeds, BUE is a significant issue since the wear mechanisms switch from abrasion and/or adhesion to diffusion as cutting speed increases.
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Consider a system with a single light (can be on or off) that can be controlled by any one of three switches. On switch is the master on/off switch. If it is down, the light is off. When the master switch is up, the light will be on iff both the other switches are up.a. Write a Boolean function (let’s call it F) for this circuitb. Write a truth table for F.c. Draw a circuit diagram to show how F could be implemented with AND, OR, and NOT gates.
Answers
Answer:
Explanation:
Hi sorry I'm new and need points ty
Wastewater flows into a _________ once it is released into a floor drain.
A) HoseB) Covered containerC) Sump pitD) Bucket
Answers
Answer:
a
Explanation:
Wastewater flows into a sump pit once it is released into a floor drain.
For better understanding, lets understand what wastewater means
Wastewater are water that are not needed or have been use and therefore they are disposed. Waster water often contains waste product of man such as food waste,feaces etc.Sump is simply known as a basin into which groundwater is channeled to. A sump pit is commonly known as a temporary pit that is fixed to trap and filter water for carrying or pumping into a design discharge area.From the above, we can therefore say that the answer that Wastewater flows into a sump pit once it is released into a floor drain is correct
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Exactly 5. 00 mL aliquots of a solution containing Phenobarbital were measured into 50. 00ml volumetric flasks and made basic with KOH.
The following volumes of a standard solution of Phenobarbital containing 2. 00 µg/ml of Phenobarbital were then introduced into each flask and the mixture was diluted to volume: 0. 00, 0. 500,1. 000, 1. 50, and 2. 00ml.
The fluorescence of each of these solutions was measured with a fluorometer, which gave volumes of 3. 26, 4. 80, 6. 41, 8. 02, and 9. 56 respectively.
(a) Pot the data.
(b) Using the plot from (a) calculate the concentration of Phenobarbital in the unknown.
(c) Derive a least-squares equation for the data.
(d) Find the concentration of Phenobarbital from the equation in (c)
(e) Calculate a standard deviation for the concentration obtained in (d)
Answers
The data can be plotted as a standard curve. The concentration of Phenobarbital in the unknown can be determined by finding the point on the curve where the fluorescence of the solution intersects the x-axis.
Pot the dataa) The data is plotted in form of a standard curve, which is a graph of the fluorescence of the solutions versus the volume of the standard solution added.
Using the plot from (a) calculate the concentration of Phenobarbital in the unknown.b) By drawing a line of best fit through the data points, we can find the point where the line intersects the x-axis, the x-intercept, which will give us the concentration of phenobarbital in the unknown.
Derive a least-squares equation for the data.c) The least-squares equation is a mathematical representation of the line of best fit. It is used to find the relationship between two variables by minimizing the sum of the squared residuals between the data points and the line.
Find the concentration of Phenobarbital from the equation in (c)d) Using the equation obtained in c), we can calculate the concentration of phenobarbital in the unknown.
Calculate a standard deviation for the concentration obtained in (d)e) By using the residuals of the line of best fit, we can calculate the standard deviation of the concentration obtained in d). This will give us an idea of how much the concentration of phenobarbital in the unknown deviates from the actual value.
The least-squares equation can be found by fitting a line to the data points. The concentration of Phenobarbital can then be determined using this equation. The standard deviation for the concentration can be calculated using the residuals from the line of best fit.
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What is the aim of reviewing a research paper?
Answers
Answer:
Purpose of review papers
They carefully identify and synthesize relevant literature to evaluate a specific research question, substantive domain, theoretical approach, or methodology and thereby provide readers with a state-of-the-art understanding of the research topic.
using a diagram, explain five(5) factors that shift the aggregate demand and aggregate supply. (10 marks)
Answers
Refer to the attachments
Answer:
Refer to attachements hope its help
Dion Training wants to install a network cable to run a television signal between two buildings. Which of the following cable types should it utilize?
a. Fiber
b. Shielded
c. Coaxial
d. Plenum
Answers
Coaxial cables are metallic cables that are most frequently used to link video equipment and convey television signals. They offer protection from electromagnetic interference, enabling the transmission of low-power communications over greater distances.
Which of the following does a user most frequently utilise to input data into their workstation?The keyboard, mouse, and touch screen are the three most used input methods.
Which of the following categories of networking equipment is used to send broadband Internet access over a fibre connection to a user's home or workplace?The high bandwidth of an HFC and RFoG network is utilised to give broadband internet access via cable using cable modems.
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Given the following MATLAB statement: ( 3 + 2 ) / 5 * 4 + 5 ^ 2 In what order will these operations be done?
Answers
Answer:
first is the parentheses, (3+2)=5 next is the exponent 5^2=25, next is the division 5 / 5 = 1, then the multiplication 4*1=4 and then you add 4+25=29. so the answer is 29.
hmmmmmmmm i already put the photo as attachment its
Answers
Answer:
letse see
Explanation: