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Likurg_2 [28]
3 years ago
14

liquid water enters a cooling tower operating at a steady state 40ºC with a mass flow rate of 105 kg/h. Cooled water at 25ºC exi

ts the cooling tower at the same mass flow rate. Makeup water is supplied at 23ºC. Atmospheric air enters the tower at 30ºC, 1 bar, 35% relative humidity. A saturated moist air stream exits at 34 ºC, 1 bar. Determine a. the mass flow rates of the dry air and makeup water, each in kg/h. b. teh rate of exergy destruction within the cooling tower, in kW, for T0 = 23ºC
Engineering
2 answers:
jasenka [17]3 years ago
5 0

Answer:2

Explanation:

egoroff_w [7]3 years ago
4 0

Answer:

Analyzing Cooling Towers. Liquid water at 100°F enters a cooling tower operating at steady state, and cooled water exits the tower at 80°F.

Explanation:

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A 179 ‑turn circular coil of radius 3.95 cm and negligible resistance is immersed in a uniform magnetic field that is perpendicu
suter [353]

Answer:

The energy, that is dissipated in the resistor during this time interval is 153.6 mJ

Explanation:

Given;

number of turns, N = 179

radius of the circular coil, r = 3.95 cm = 0.0395 m

resistance, R = 10.1 Ω

time, t = 0.163 s

magnetic field strength, B = 0.573 T

Induced emf is given as;

emf= N\frac{d \phi}{dt}

where;

ΔФ is change in magnetic flux

ΔФ  = BA = B x πr²

ΔФ  = 0.573 x π(0.0395)² = 0.002809 T.m²

emf = N\frac{d \phi}{dt} = 179(\frac{0.002809}{0.163} ) = 3.0848 \ V

According to ohm's law;

V = IR

I = V / R

I = 3.0848 / 10.1

I = 0.3054 A

Energy = I²Rt

Energy = (0.3054)² x 10.1 x 0.163

Energy = 0.1536 J

Energy = 153.6 mJ

Therefore, the energy, that is dissipated in the resistor during this time interval is 153.6 mJ

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The mechanical advantage of a screw is always ____________________ than/to 1. Question 5 options: less, greater, equal, none of
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Explanation:

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I’m in Sociology Class guys and I need help on this question!
Kitty [74]

The stance that a person will take on increasing the minimum wage  is that higher earnings would boast the total standard of living for anyone that is earning minimum wage and it is one that  can provide them with a lot of appropriate income level to manage the cost of living as it increases.

<h3>How would you validate your stance through research?</h3>

I will take a survey using a sample population of minimum wage workers and give them questionnaires to fill.

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Therefore, The stance that a person will take on increasing the minimum wage  is that higher earnings would boast the total standard of living for anyone that is earning minimum wage and it is one that  can provide them with a lot of appropriate income level to manage the cost of living as it increases.

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Which of the following is NOT a line used on blueprints?
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