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VARVARA [1.3K]
3 years ago
10

What are the major types of stone used in construction? How do their properties differ? What sequence of operations would be use

d to produce rectangular slabs of polished marble from a large quarry block? In what ways is the laying of stone masonry different from the laying of bricks? What are the advantages of concrete masonry units over other types of masonry units? How long is a wall that is made up of 22 concrete masonry units, each nominally 8 ×8 ×16 inches (203 ×203 ×406 mm), joined with ⅜_inch (10 mm) mortar joints? How may horizontal and vertical steel reinforcement be introduced into a CMU wall? Describe how a cavity wall works and sketch its major construction features. What aspects of cavity wall construction are most critical to its success in preventing water leakage? Where should flashings be installed in a masonry wall? What is the function of the flashing in each of these locations? Where should weep holes be provided? Describe the function of a weep hole and indicate several ways in which it may be constructed. What types of movement joints are required in a concrete masonry wall? In a brick masonry wall? Where should these joints be located? What are some ways of insulating masonry walls? What precautions should be taken when constructing masonry walls in Minneapolis in the winter?
Engineering
1 answer:
Kruka [31]3 years ago
5 0

Answer:

woah man that's long... and that is supposed to be high school work - you should ask someone a lot more professional like a professor or teacher

Explanation:

this question alone has my head spinning if i didn't  know any better i'd think this was alchemy or something.

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Liquid water is fed to a boiler at 24°C and 10 bar is converted at a constant pressure to saturated steam.
zepelin [54]

We can find the change in the enthalpy through the tables A5 for Saturated water, pressure table.

For 1bar=1000kPa:

T_{sat}=179.88\°c

H_{fg} = 2014.6kJ/kg

c_p=4.18 kJkg^{-1}{K^{-1}

\nu_g = 0.19436m^3/kg

Replacing,

\Delta h = h_{fg}+c_p(T_{sat}-T_{inlet})

\Delta h = 2014.6+4.18(179.88-24)

\Delta h=2666.17kJ/kg

With the specific volume we know can calculate the mass flow, that is

\dot{m}=\frac{\frac{15000}{3600}}{0.19436}

\dot{m} = 21.4378kg/s

Then the heat required in input is,

Q=\dot{m}\Delta h

Q=21.4378*2666.17

Q=57157.036kW

With the same value required of 15000m^3/h, we can calculate the velocity of the water, that is given by,

V= \frac{\dotV}{A}

V = \frac{\frac{15000}{3600}}{\pi /4 *(0.15)^2}

V=235.79m/s

Finally we can apply the steady flow energy equation, that is

\dot{m}(h_1+\frac{V^2}{2000})+Q = \dot{m}h_2

Re-arrange for Q,

Q=\dot{m}(h_2-h_1-\frac{V^2}{2000})

Q=\dot{m}(\Delta h-\frac{V^2}{2000})

Q= (21.4378)(2666.17-\frac{235.79^2}{2000})

Q= 56560.88kW

We can note that consider the Kinetic Energy will decrease the heat input.

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Which element of Miranda's character is best illustrated by this excerpt?
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Answer:

B. She is compassionate

Explanation:

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Consider a CMOS inverter which has ideal transistors with the following characteristics: PMOS transistor: W/L = 2; Mobility (up)
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Answer:

The transistor will be in amplifier mode and we will expect current will be higher than expected.

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Who was the American founder and leader of the Shakers in the 1770’s who advocated equality, individual responsibility, and peac
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Answer: Ann Lee (1736-1784)

Explanation:

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