A liquid dominated geothermal power system, uses saturated liquid water from a reservoir at 290 psi and outputs 250MW at the turbine. The steam enters the turbine at 44 psi and condenses at 3 psi. The turbine efficiency is 80%. The cooling tower exit temperature is 20°C.
a) Calculate the mass flow rate of steam passing through the turbine
b) Calculate the mass flow rate of water out of the reservoir
Answers
A liquid dominated geothermal power system, uses saturated liquid water from a reservoir at 290 psi and outputs 250MW at the turbine. The steam enters the turbine at 44 psi and condenses at 3 psi. The turbine efficiency is 80%. The cooling tower exit temperature is 20°C.
a) Mass flow rate of steam passing through the turbine Mass flow rate can be calculated using the energy balance equation as follows:Wt = Qh - Ql,where, Qh = Enthalpy of steam at turbine inletQl = Enthalpy of steam at turbine outletWt = Work done by the turbine.According to the question, Enthalpy of steam at turbine inlet, hf = 44 psi, hfg = 1184.0 BTU/lb (from the steam table)Qh = hf + xhfg, where x is the quality of the steamQh = 687.87 BTU/lb at 44 psiaEnthalpy of steam at turbine outlet, hf = 3 psi, hfg = 1085.4 BTU/lbQl = hf + xhfg, where x is the quality of the steamQl = 1017.08 BTU/lb at 3 psia.
The work done by the turbine, Wt = 250 MW and the efficiency of the turbine, η = 80% = 0.8.η = (Wt/Qh)Wt/Qh = 0.8Wt = 0.8QhWt = 0.8 x (250 x 10^6) WattsWt = 2 x 10^8 WattsQh = Wt / ηQh = (2 x 10^8) / 0.8Qh = 2.5 x 10^8 WattsUsing the energy balance equation,Wt = Qh - Ql2 x 10^8 = 2.5 x 10^8 - QlQl = 0.5 x 10^8 WattsNow, mass flow rate can be calculated as,m = Ql / (hfg x η)hfg = 1085.4 BTU/lb = 286.34 kJ/kgη = 0.8m = 0.5 x 10^8 / (286.34 x 0.8)m = 216524 kg/hour or 601.45 kg/second.
Therefore, the mass flow rate of steam passing through the turbine is 601.45 kg/sb) Mass flow rate of water out of the reservoirMass flow rate of water out of the reservoir can be calculated as follows:Total heat supplied, Qs = Qh - QcQc is the heat removed in the cooling tower.
Let, mc = mass flow rate of cooling water, hcf = enthalpy of cooling water at the inlet of cooling tower, hcout = enthalpy of cooling water at the outlet of cooling tower.
Qc = mc (hcf - hcout)Now, enthalpy of saturated liquid water at 290 psi = 293.52 BTU/lbmQh = 687.87 BTU/lbm from part aQs = Qh - QcTotal heat supplied, Qs = m (hfg + hsf)hfg = 1184.0 BTU/lbm, hsf = cp x (T2 - T1) = 1 x (80 - 20) = 60 BTU/lbm.Qs = m (hfg + hsf)687.87 = m (1184 + 60)m = 0.5436 lbm/s or 1960.96 lbm/hourTherefore, the mass flow rate of water out of the reservoir is 1960.96 lbm/hour.
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Related Questions
Describe some typical pairs of entities that you think might be common in business, and describe their relationships, whether many-to-many, one-to-many, many-to-one, or one-to-one. Explain why you think that a particular relationship applies to that pair of entities.
Answers
Answer:
Sole Proprietorship, General Partnership , Limited Partnership, corporation
Explanation:
Business in something that an individual or a group of people do for a living and produce products and services that benefits the society and the people. There are several entities that can be common in business. Some common form of entities are :
Sole Proprietorship : One to one
-- here there is only one owner in the business and he maintains and manages the entire business functions under his control.
Limited Partnership : many to one
-- here two or more than two partners establish business and runs it but only one or more is liable to the amount of the investments.
General Partnership : many to many
-- It is a business partnership where all the partners shares the profits, the assets, legal liabilities and financial liabilities, etc.
Corporation : many to one
It is a business entity where a group of individual or a group of companies run a single business which is generally authorized by the state.
Some of the typical types of the entities that one may think to be common in term of the business entities are about the relationships that are held within many to many and one to many.
The one to one relation is Sole Proprietorship, General Partnership, Limited Partnership, corporation.Learn more about the typical pairs of entities.
brainly.com/question/24935985.
Write a Python function with the following prototype:
def drawPyramid(rows)
This function accepts a number from 1 to 26 inclusive and draws a letter
pyramid with the first row starting with the character 'a'. Subsequent rows contain 2 more characters than the previous row such that the middle character in each row increases by 1.
Also, each row begins with the letter 'a' and increases by 1 for each column until the middle
character is reached at which point, the characters decrease until they end with
the character 'a'.
Also, each row displays spaces so that the pyramid appears as an isoscelles triangle.
The first row will contain row - 1 spaces, the second row will contain row - 2 spaces,
etc.
# For example, when rows = 3 the pyramid looks like:
a
aba
abcba
# For example, when rows = 10 the pyramid looks like:
a
aba
abcba
abcdcba
abcdedcba
abcdefedcba
abcdefgfedcba
abcdefghgfedcba
abcdefghihgfedcba
abcdefghijihgfedcba
NOTE: Consider using string.ascii_lowercase, string slices [ : ], string repetition operator *,
and the join( ) function to accomplish your solution.
Your solution may ONLY use the python modules listed below
import math
import random
import string
import collections
import datetime
import re
import time
import copy
def drawPyramid(rows) :
# your code here...
def main( ) :
drawPyramid(5)
drawPyramid(3)
Answers
Here is the Python function which accepts a number from 1 to 26 inclusive and draws a letter pyramid with the first row starting with the character 'a'. The subsequent rows contain two more characters than the previous row such that the middle character in each row increases by
1. Each row begins with the letter 'a' and increases by 1 for each column until the middle character is reached at which point, the characters decrease until they end with the character 'a'. Also, each row displays spaces so that the pyramid appears as an isosceles triangle.
def drawPyramid(rows): # rows variable will store the number of rows for i in range(rows): # to display the characters till the middle of the row # here, chr function will convert the ASCII value to its character.
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if a motor turns a shaft with a 25-tooth gear 8 times in 10.67 seconds. that gear meshes with a gear having 75 teeth which are connected to a second shaft. how fast is the second gear turning? 45 rpm 27 rpm 23 rpm 15 rpm
Answers
The speed of the second gear is 45 rpm. A gear is a rotating, circular machine element with teeth that can be cut or, in the case of a gear or pinion, inserted.
A gear is a rotating, circular machine element with teeth that can be cut or, in the case of a gear or pinion, inserted. These teeth, known as gears, mesh with another gear to transmit torque and speed.
The basic idea of how gears work is comparable to the basic idea of how levers work. Sprocket is another colloquial term for a gear wheel. The speed, torque and direction of the power source can be changed using gearing devices.
Through their gear ratio, gears of different sizes vary the torque and provide a mechanical advantage; consequently, they can be considered basic machines. The two meshing gears have different torques and rotational speeds in proportion to their diameter.
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A European apparel manufacturer has production facilities in Italy and China to serve its European market, where annual demand is for 1.9 million units. Demand is expected to stay at the same level over the foreseeable future. Each facility has a capacity of 1 million units per year. With the current exchange rates, the production and distribution cost from Italy is 10 euro per unit, whereas the production and distribution cost from China is 7 euro. Over each of the next three years, the Chinese currency could rise relative to the euro by 15 percent with a probability of 0.5 or drop by 5 percent with a probability of 0.5. An option being considered is to shut down 0.5 million units of capacity in Italy and move it to China at a one-time cost of 2 million euros. Assume a discount factor of 10 percent over the three years. Do you recommend this option?
Answers
very big question aa having i can't answer it
FOR BRAINLIST ITS A DCP
The Battle of Sabine Pass
The Battle of Galveston
The Battle of Palmito Ranch
The Battle of Vicksburg
Answers
Answer:
I think The Battle of Sabine Pass
Future solution for air pollution in new zealand
Answers
Answer:
New Zealand may use some of these solutions to prevent air pollution
Explanation:
Using public transports.
Recycle and Reuse
No to plastic bags
Reduction of forest fires and smoking
Use of fans instead of Air Conditioner
Use filters for chimneys
Avoid usage of crackers
Air flows through a heating duct with a square cross-section with 9-inch sides at a speed of 6.1 ft/s. Just before reaching an outlet in the floor of a room, the duct widens to assume a square cross-section with sides equal to 13 inches. Compute the speed of the air flowing into the room (in ft/s), assuming that we can treat the air as an incompressible fluid.
Answers
Answer:
2.9237 ft/s
Explanation:
Given the data in the question;
A₁ = 9-inch × 9-inch = 81 in² = 81 / 144 = 0.5625 ft²
V₁ = 6.1 ft/s
A₂ = 13 in × 13 in = 169 in² = 1.17361 ft²
v₂ = ?
using the the equation if continuity
( Rate of volumetric flow is constant )
A₁V₁ = A₂V₂
we substitute
0.5625 ft² × 6.1 ft/s = 1.17361 ft² × V₂
3.43125 ft³/s = 1.17361 ft² × V₂
V₂ = 3.43125 ft³/s / 1.17361 ft²
V₂ = 2.9237 ft/s
Therefore, the speed of the air flowing into the room is 2.9237 ft/s
The accompanying specific gravity values describe various wood types used in construction. 0.320.350.360.360.370.380.400.400.40 0.410.410.420.420.420.420.420.430.44 0.450.460.460.470.480.480.490.510.54 0.540.550.580.630.660.660.670.680.78 Construct a stem-and-leaf display using repeated stems. (Enter numbers from smallest to largest separated by spaces. Enter NONE for stems with no values.)
Answers
Answer:
\(\begin{array}{ccc}{Steam} & {\vert} & {Leaf} \ \\ \\ {0.3} & {\vert} & {2\ 5\ 6\ 6\ 7\ 8} \ \\ \\{0.4} & {\vert} & {0\ 0\ 0\ 1\ 1\ 2\ 2\ 2\ 2\ 2\ 3\ 4\ 5\ 6\ 6\ 7\ 8\ 8\ 9} \ \\ \ \\ {0.5} & {\vert} & {1\ 4\ 4\ 5\ 8} \ \\ \ \\ {0.6} & {\vert} & {3\ 6\ 6\ 7\ 8} \ \\ \ \\ {0.7} & {\vert} & {8} \ \ \end{array}\)
Explanation:
Given
\(0.32,\ 0.35,\ 0.36,\ 0.36,\ 0.37,\ 0.38,\ 0.40,\ 0.40,\ 0.40,\ 0.41,\)
\(0.41,\ 0.42,\ 0.42,\ 0.42,\ 0.42,\ 0.42,\ 0.43,\ 0.44,\ 0.45,\ 0.46,\)
\(0.46,\ 0.47,\ 0.48,\ 0.48,\ 0.49,\ 0.51,\ 0.54,\ 0.54,\ 0.55,\)
\(0.58,\ 0.63,\ 0.66,\ 0.66,\ 0.67,\ 0.68,\ 0.78.\)
Required
Plot a steam and leaf display for the given data
Start by categorizing the data by their tenth values:
\(0.32,\ 0.35,\ 0.36,\ 0.36,\ 0.37,\ 0.38.\)
\(0.40,\ 0.40,\ 0.40,\ 0.41,\ 0.41,\ 0.42,\ 0.42,\ 0.42,\ 0.42,\ 0.42,\)
\(0.43,\ 0.44,\ 0.45,\ 0.46,\ 0.46,\ 0.47,\ 0.48,\ 0.48,\ 0.49.\)
\(0.51,\ 0.54,\ 0.54,\ 0.55,\ 0.58.\)
\(0.63,\ 0.66,\ 0.66,\ 0.67,\ 0.68.\)
\(0.78.\)
The 0.3's is will be plotted as thus:
\(\begin{array}{ccc}{Steam} & {\vert} & {Leaf} \ \\ {0.3} & {\vert} & {2\ 5\ 6\ 6\ 7\ 8} \ \ \end{array}\)
The 0.4's is as follows:
\(\begin{array}{ccc}{Steam} & {\vert} & {Leaf} \ \\ {0.4} & {\vert} & {0\ 0\ 0\ 1\ 1\ 2\ 2\ 2\ 2\ 2\ 3\ 4\ 5\ 6\ 6\ 7\ 8\ 8\ 9} \ \ \end{array}\)
The 0.5's is as follows:
\(\begin{array}{ccc}{Steam} & {\vert} & {Leaf} \ \\ {0.5} & {\vert} & {1\ 4\ 4\ 5\ 8} \ \ \end{array}\)
The 0.6's is as thus:
\(\begin{array}{ccc}{Steam} & {\vert} & {Leaf} \ \\ {0.6} & {\vert} & {3\ 6\ 6\ 7\ 8} \ \ \end{array}\)
Lastly, the 0.7's is as thus:
\(\begin{array}{ccc}{Steam} & {\vert} & {Leaf} \ \\ {0.7} & {\vert} & {8} \ \ \end{array}\)
The combined steam and leaf plot is:
\(\begin{array}{ccc}{Steam} & {\vert} & {Leaf} \ \\ \\ {0.3} & {\vert} & {2\ 5\ 6\ 6\ 7\ 8} \ \\ \\{0.4} & {\vert} & {0\ 0\ 0\ 1\ 1\ 2\ 2\ 2\ 2\ 2\ 3\ 4\ 5\ 6\ 6\ 7\ 8\ 8\ 9} \ \\ \ \\ {0.5} & {\vert} & {1\ 4\ 4\ 5\ 8} \ \\ \ \\ {0.6} & {\vert} & {3\ 6\ 6\ 7\ 8} \ \\ \ \\ {0.7} & {\vert} & {8} \ \ \end{array}\)
four working ladies a,b c,d are sitting around a table
1) a sits opposite to cook
2.b sits on the right side of the beautician
3.teacher is on the left side of an accountant
4.d sits opposite to c
5.c is to the right of the accountant
Answers
Answer:
A accountant
D teacher
B cook
C beautician
Explanation:
C is on the right of the accountant, so D (opposite C) is the teacher. The accountant is to the right of the teacher, so cannot be B, and must be A. Then B (opposite A) is the cook, and C (left of B) is the beautician.
__
Clockwise from A:
A accountant
D teacher
B cook
C beautician
What is An ampere is
Answers
Answer:
the SI base unit of electrical current.
Answer:
An ampere is the SI base unit of electrical current
Consider the cyclic redundancy check (crc) algorithm. suppose that the 4-bit generator (g) is 1001, that the data payload (d) is 10011100 and that r = 3. what are the crc bits (r) associated with the data payload d, given that r = 3?
Answers
According to the cyclic redundancy check algorithm (crc), when the remainder (r) calculated on the receiving side is non-zero (r = 3 or whatever), the data transmission is not correct. Below an example.
Python code of CRC algorithmdef modDivision(g,f4d):
d01 = []
for i in range(1,len(f4d)):
if g[i] == f4d[i]:
d01.append('0')
else:
d01.append('1')
return ''.join(d01)
def crcGenerator(dg,g):
#Obtaining the remainderglobal dr
cbits = len(g)
#first 4 digits of the data payload
f4d = dg[:cbits]
#In this case, cicle exit when cbits=4 until 11
while cbits < len(dg):
if f4d[0] == '1':
f4d = modDivision(g, f4d)+dg[cbits]
else:
g0 = '0'*cbits
f4d = modDivision(g0, f4d)+dg[cbits]
cbits+=1
if f4d[0] == "1":
f4d = modDivision(g, f4d)
else:
g0 = '0'*cbits
f4d = modDivision(g0, f4d)
return f4d
if __name__ == '__main__':
# Define variables
d01 = []
dr = str()
dr = ""
#***************Sender Side********************
#4-bit generator (g)
g = '1001'
#the data payload (d)
d = '10011100'
#Adding zeroes to the data to be sentdg = d + '0'*(len(g)-1)
#Calling function to get remainder
f4d = crcGenerator(dg,g)
#Append the remainder to the end of the datadr+= d+f4d
print("Data payload: " ,d)
print("Dividend: " ,dg)
print("Divisor: " ,g)
print("Remainder: " ,f4d, " (Check key = ", g, ")")
print("Total data sent: " ,d+f4d, " (appending the remainder to the data payload)")
#Checking for errors (Receiver Side)r = crcGenerator(dr,g)
print("After checking in receiver side, remainder is:", r, end="")
if int(r) == 0:
print(" (r =", int(r), " data is error-free)")
else:
print(" (r =", int(r), " data has error)")
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* Question 1: Design alarm system as shown below. The alarm turns on when one of the following
conditions happened:
A. Motion IR sensor & window sensor
activated.
B. Motion IR sensor & door sensor
activated.
C. Otherwise the buzzer off.
(A)
Warning
Motion
Sensors
Buzzer
Suppose that: Warning buzzer on pin 8
Motion sensor on pin 5
Window sensor on pin 6
Door sensor on pin 7
The buzzer works on beating mode.
(C)
Door
sensor
TE
(B)
Window
Sensors
Answers
Answer:
A
Explanation:
The satisficing decision maker is best characterized as:A) a decision confirmation process.B) following bounded rationality.C) a search for consistency.D) seeking a "good enough" solution.
Answers
Using the satisficing technique, the decision-maker selects the first alternative that meets his or her minimum standards of satisfaction.
A manager's values, which also shape their ethics, have an impact on the alternatives, determining factors, and performance measurements that are used in the decision-making process. When making decisions, the term "satisficing" refers to picking the outcome that is more acceptable or satisfactory than the best. concentrating on what matters rather than exerting maximum effort to achieve the ideal result when faced with tasks brainly.com/question/14925666 on practical effort. The satisficing decision-making paradigm states that satisficing decision-makers always pick the first option that appeals to them. It might not be connected to the greatest answer. It suggests that decision-makers should focus only on options that meet a set of essential criteria for sufficiency. satisficing in terms of making decisions. Choose the cheapest alternative.
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True or False; If I was trying to find the Voltage of my computer, and I was given the Watts and Amps it uses, I would use Watt's Law.
Answers
Answer:
true
Explanation:
An asbestos pad is square in cross section, measuring 5 cm on a side at its small end, increasing linearly to 10 cm on a side at the large end. The pad is 15 cm high. If the small end is held at 600 K and the large end at 300 K, what heat‐flow rate will be obtained if the four sides are insulated? Assume one‐dimensional heat conduction. The thermal conductivity of asbestos may be taken as 0.173 W/m⋅K.
Answers
A platinum resistance temperature detector has a resistance of 100.00 V at 0°C, 138.50 V at 100°C and 175.83 V at 200°C. What will be the nonlinearity error in °C at 100°C if the detector is assumed to have a linear relationship between 0 and 200°C?
Answers
Answer:
about 1.54 °C
Explanation:
The error will be the difference between the temperature interpreted from the resistance value and the actual temperature. The linear equation used to translate the resistance reading to temperature will be ...
T = (200 -0)/(175.83 -100.00)(R -100.00)
T ≈ 2.637479(R -100)
At the temperature of 100°C, the resistance value of 138.50 will be interpreted to be a temperature of ...
T = 2.637479(138.50 -100) ≈ 101.543°C
This represents an error of 1.543°C relative to the actual temperature.
There are 22 people in the classroom 12 are we
toals 5 are doing book work 4 are playing on their phones. 1 is sleeping. How
many people have to wear safety glasses?
A1
89
C 12
D 22
Answers
relevance of engineering law and ethic in contemporary society
Answers
Answer:
Engineering law and ethics are the moral codes associated with the field in which engineers are meant to adhere strictly to.
These ethics help in the safety of the engineers as a result of wearing protective clothing being a part of the ethics . Accuracy should also be taken important in research and daily activities. Corrupt practices and activities which poses risk to the environment is also strictly prohibited.
Which of the following is NOT used to stabilize a vehicle involved in a collision?
A. Strut
B. Cribbing
C. Nader pin
D. Step chock
Answers
Among the options provided, the Nader pin is NOT used for stabilization.
So, the correct answer is C.
Instead, it is a component of the vehicle door latch system that helps secure the door.
In a vehicle collision scenario, various tools and techniques are employed to stabilize the vehicle and ensure safety.
On the other hand, a strut (A) is a support device that holds the vehicle in place, cribbing (B) consists of wooden or plastic blocks placed beneath the vehicle to prevent movement, and step chocks (D) are wedge-shaped supports placed under the tires to prevent rolling.
These three tools contribute to vehicle stabilization, while the Nader pin does not.
Hence, the answer is C.
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who owns the building that is erected on land that has a ground lease
Answers
Answer:
The building that is erected on land that has a ground lease is typically owned by the tenant who has leased the land from the owner of the property. However, the terms of the ground lease may specify that the building and other improvements on the land revert to the owner of the property at the end of the lease term.
Mark as brainliest....
Tech A says that on most front wheels the replaceable sealed bearing is pressed between the hub and the wheel flange and is the more difficult to replace. Tech B says that the unitized wheel hub includes a sealed wheel bearing, a removable wheel hub, and possibly the wheel flange. This type can be unbolted. Who is correct
Answers
Both technicians A and B are correct. On most front wheels the replaceable sealed bearing is pressed between the hub and the wheel flange and is the more difficult to replace. Hence it is usually replaced as a unit.
What about the Unitized Wheel Hub?The unitized wheel hub includes a sealed wheel bearing, a removable wheel hub, and possibly the wheel flange that can be unbolted.
Hence both technicians are correct.
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When you park on a hill,the direction your __are pointed determines which direction your car will roll if the breaks fail
Answers
Answer:
Tires or wheels? I think this is the answer. ^_^
Explanation:
The US navy recently funded the development of submersible drones to investigate shipwrecks located
on the ocean floor of the Marianas Trench. In this region of the world the ocean floor is located about
7.0 miles below sea level. Calculate the pressure a submersible drone would need to withstand 7 miles
below the surface of the ocean.
Answers
The pressure a submersible drone would need to withstand 7 miles is given to be 114.49 MPA
How to solve for the pressure of the submersible droneWer have P = rho x H
Where Rho s is the Sp x the weight of the sea water
= 10163 . 16n/m²
We are to proceed to find the value of H
H = 7. 0 miles below sea water
= 11265.408m
P = 11265.408m x 10163 . 16n/m²
= 114,492.144
= 114.49 MPA
Hence we can say that the pressure of the submersible drone should be equal to 114.49 MPA
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Please help me solve Problem 21.2
Answers
__________________________________________________________
Hello! In this question, we are trying to find the maximum value of shear flow in the web of the wing spar. Note that we are trying to find this with a section that is 1 meter away from the free end of the beam.
__________________________________________________________
Explanation:
In this problem, we know that:
the web has a thickness of 2 mm.Fully effective in resisting direct stressThis information should be kept in mind and can help us solve our problem.
__________________________________________________________
Solve:
Let us begin to solve the problem.
Since we're analyzing the moment in one section, in this case, we can note this as "section 1", we can use this formula to determine the moment in this section:
\(M_{1}=\frac{wl^2}2}\)
Whereas:
Plug in the values into the equation and solve:
\(M_{1}=\frac{15*1^2}2}=7.5\text{kN-m}\)
Now, let us find the moment of inertia of the beam in our 1st section. We'll use the formula:
\(I_{xx}=\frac{BD^3}{12} +2Ah^2\)
Whereas:
B = width (2 mm)D = depth (300 mm)A = area (500 mm²)h = centroid of this section (150 mm)Plug in the values into the equation and solve:
\(I_{xx}=\frac{2(300)^3}{12} +2(500)(150)^2=2.7\times10^7\:\text{mm}^4\)
Now knowing our moment and inertia, we can solve our direct distress in the z direction of our flanges using the following formula:
\(\sigma_{z,U} = -\sigma_{z,L}=\frac{M_{1}}{I_{xx}}y\)
We know:
Plug the values into the equation and solve. (Note that unit conversion was done for M1):
\(\sigma_{z,U} = -\sigma_{z,L}=\frac{7.5\text{kN-m}*(\frac{1000 N}{1kN})(\frac{1000mm}{1m} )}{2.7\times10^7}(150mm)=-41.7\:\text{N/mm}^2\)
Since we now know what our direct distress is, we can find the bending moment resultant with the formula:
\(P_{z,U}=\sigma_{z,U}\times A\)
We know:
\(\sigma_{z,U} = -\sigma_{z,L}=-41.7\:\text{N/mm}^2\)A = 500 mm² (according to our wing spar given in our problem)Plug in the values to our equation and solve:
\(P_{z,U}=-41.7\:\text{N/mm}^2\times 500\:mm^2=-20850\:N\)
Now knowing our bending moment resultant, we can now find our flange load of the web section. Note that our flange load is uniformly distributed. We will use the formula:
\(P_{U}=\sqrt{P_{z,U}^2+P_{y,U}^2}}\)
We know that:
Plug in the values into the equation and solve:
\(P_{U}=\sqrt{(-20850)^2+0^2}}=20850\:N\)
Please note that the answer we calculated above is our tension (T).
Let's now calculate our bending moment resultant using:
\(P_{y,L}=P_{z,L}\times\frac{\delta{y}^2}{\delta_{z}}\)
We know:
\(P_{z,L}=-20850\:N\)\(\delta{y}^2=100\:mm\)\(\delta_{z}=1\:m\)Plug in the values and solve. To make things go faster, I included the unit conversion for our denominator value:
\(P_{y,L}=-20850\:N\times\frac{100\:mm}{(1\:m\times\frac{1000\:mm}{1\:m} )}=-2085\:kN=2085\:kN\)
Please note that the above calculation would be our compression value.
Let's calculate our shear force in the web in our 1st section using a known relationship:
\(S_{y}=-W\times\delta_{z}+P_{y,L}\)
We know:
Plug in our known values and solve:
\(S_{y}=-15\times(1\:m\times\frac{1000\:mm}{1\:m} )+2085=-12915\:N\)
In order to figure out what our shear flow is (note that our shear flow is represented as q), we will use the relationship:
\(q=\frac{S_y}{I_{xx}} [\int_{0}^{s}2(150-s)ds+500\times(\frac{300}{2} )]\)
We know:
\(S_{y}=-12915\:N = 12915\:N\)\(I_{xx}=2.7\times10^7\:mm\)Plugging in the values, we will get:
\(q=\frac{12915}{2.7\times10^7\:mm} [\int_{0}^{s}2(150-s)ds+500\times(\frac{300}{2} )]\)
Simplify the equation:
\(q=4.78\times10^{-4} [\int_{0}^{s}(300-s)ds+75000]\)
Integrate the equation:
\(q=4.78\times10^{-4} [\int_{0}^{s}(300-s)ds+75000]\\\\q=4.78\times10^{-4} ((300s-\frac{2s^2}{2} +[0])+75000)\\\\q=4.78\times10^{-4} ((300s-s^2 )+75000)\)
We now have our equation for the shear flow. We know that the max value of shear flow will happen when s equals 150 mm, so let's plug in the value 150 mm into "s" in our "q" equation and solve:
\(q=4.78\times10^{-4} ((300(150)-150^2 )+75000)=\boxed{46.8\:N/mm}\)
__________________________________________________________
Answer:
The max value of shear flow in the web in the 1st section of the beam is:
\(q=\boxed{46.8\:N/mm}\)
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For surface-mounted and pendant-hung luminaires, support rods should be placed so that they extend about ____
Answers
For surface-mounted and pendant-hung luminaires, support rods should be placed so that they extend about one.
What is mounted?A particular disk is activated by mounting software, which makes its contents accessible to the computer's file system. A partition is created in the computer's file system for the mounted device when it is mounted.
A framework or foundation that supports or supports something else. Mounting is another word for support.
The procedure through which the operating system of a computer makes the files and directories on a storage device (such as a hard drive, CD-ROM, or network share) accessible to users via the computer's file system is known as mounting.
For surface-mounted and pendant-hung luminaires, mounting rods should be placed so that they develop about one.
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In lighting system, why it is important to consider maintenance factor?
Answers
Answer: The maintenance factor of a lighting system reflects how much of the initial luminous flux is still available at the end of its useful life. The planned lighting engineer must compute the maintenance factor and multiply the new value of the light output by it.
Explanation:
Answer:
Explanation: A lighting system's maintenance factor indicates how much of the initial luminous flux remains available at the end of its service life. The maintenance factor must be determined by the planning lighting engineer and the new value of the luminous flux multiplied by it.
What should wheel bearing seals be checked for
Answers
Answer:
drugs
Explanation:
Question 2
For the circuit above in question 1, what is the most negative value v_{s}v
s
can take
before the amplifier saturates? Express your answer in mV and omit
units from your answer.
Answers
The most negative value can take before the amplifier saturates. Suppose, Consider a non-ideal op amp where the output can saturate. Hence, The most negative value of is 0.5 mV
Can take before the amplifier saturates?The most negative value v2 can take before the amplifier saturates.Suppose, Consider a non-ideal op amp where the output can saturate.The open voltage gain is2*10 4 where,According to figure,
The negative output value is
v0 = -10V
We need to calculate the most negative value of
Using given formula
v0 = -A(Vs)
Where, = output value
A = voltage gain
Put the value into the formula
-10 = -2 *10 4* Vs
vs = 10/2*10 4
Vs = 0.0005v
Vs = 0.5MV
Hence, The most negative value of is 0.5 mV.
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The most negative value can take before the amplifier saturates. Suppose, Consider a non-ideal op amp where the output can saturate. Hence, The most negative value of is 0.5 mV
Can take before the amplifier saturates?The most negative value v2 can take before the amplifier saturates. Suppose, Consider a non-ideal op amp where the output can saturate. open voltage gain is2*10 4 where, According to figure,
The negative output value is
v0 = -10V
We need to calculate the most negative value of
Using given formula
v0 = -A(Vs)
Where, = output value
A = voltage gain
Put the value into the formula
-10 = -2 *10 4* Vs
vs = 10/2*10 4
Vs = 0.0005v
Vs = 0.5MV
Hence, The most negative value of is 0.5 mV.
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What is the maximum rating of the motor branch-circuit short-circuit and ground-fault protective device for a 7 1/2-horsepower, 208-volt, 3-phase squirrel-cage induction motor using time-delay fuses?.
Answers
The maximum rating of the motor branch-circuit short-circuit and ground-fault protective device for a 7 1/2-horsepower, 208-volt, 3-phase squirrel-cage induction motor using time-delay fuses is approximately 45 A.
To determine the maximum rating of the motor branch-circuit short-circuit and ground-fault protective device for a 7 1/2-horsepower, 208-volt, 3-phase squirrel-cage induction motor, we can use the National Electrical Code (NEC) guidelines.
Step 1: Calculate Full Load Current (FLA)
The full load current (FLA) of a motor can be calculated using the formula:
\(\mathrm{FLA = \frac{Horsepower \times 746}{\sqrt{3}\times voltages \times efficiency \times power factor } }\)
Since efficiency and power factor are not given, we will assume typical values of 0.85 for efficiency and 0.85 for power factor.
Given:
Horsepower (HP) = 7.5 HP
Voltage = 208 V
Efficiency = 0.85
Power Factor = 0.85
Substitute these values into the formula:
\(\mathrm{FLA = \frac{7.5 \times 746}{\sqrt{3}\times 208 \times 0.85 \times 0.85 } }\)
Step 2: Determine the Maximum Rating:-
According to NEC guidelines, the maximum rating of the protective device can be calculated by multiplying the FLA by a percentage that corresponds to the type of motor and the type of protective device.
For a squirrel-cage induction motor with time-delay fuses, the percentage is typically around 175%.
Maximum Rating = FLA × 175%
Maximum Rating = 25.76A × 1.75 ≈ 45.12A
Rounded to the nearest standard fuse size, the maximum rating of the protective device is 45 A.
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The employer rejected a contractor's tender and accepted a different
tender, but that tenderer went into liquidation before starting on site. The
employer then accepted the first tender, but the contractor said it would
have to increase the price. Is the contractor allowed to do that?
Answers
Answer:
gift cards like subscribe channel comment on this is new to the same time as I will send it in the blanks with past and different problems with the day I will send it by clicking the link to and from the day of a place to stay in touch with you tube dash board and my family is greenhouse gases and different songs of a
Answer:
No what was in the past is the past but present is in the present unless it has it's own law/rule
Explanation: