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3 years ago

How does fouling affects the performance of a heat exchanger?

Engineering

1 answer:

Kisachek [45]3 years ago

6 0

Answer:

Fouling :

When rust or undesired material deposit in the surface of heat exchanger,is called fouling of heat exchanger.

Effect of heat exchanger are as follows"

1.It decreases the heat transfer.

2.It increases the thermal resistance.

3.It decreases the overall heat transfer coefficient.

4.It leads to increase in pressure drop.

5.It increases the possibility of corrosion.

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5.You are designing the fit for two bearings. For each case, specify the maximum and minimum hole and shaft diameter:a.A journal

KIM [24]

Answer:

The solution is given in the attachments.

8 0

3 years ago

The figure angle c measures 38°

Elanso [62]

The figure c measures 38• so it would be an angle of 48 and a degree of 67

4 0

3 years ago

Ignorance: noun

jarptica [38.1K]

Answer:

A: the condition of living without the benefit of education at some level

Explanation:

As a noun, ignorance is simply defined as the lack of knowledge about a common thing.

For example, he was ignorant about the schemes of his colleagues at the office.

Thus, from the given options, the correct answer is: "the condition of living without the benefit of education at some level".

3 0

3 years ago

A team of engineers is tasked with designing a hydraulic engine for a motorboat that is as efficient as possible. Identify three

Rina8888 [55]

Answer:

Driving surface area as subject to differential pressures
How to achieve continuous rotation
Mechanical connections

Explanation:

The general stages of thinking when designing a system are;

First understanding the problem that requires you to design a solution
Defining the problem that needs to be solved. In this case is to design an efficient hydraulic engine for a motorboat
Research to find any available solutions for similar problems
Idea of the solution
A prototype to try solve the challenge
Selecting and adjusting the prototype as you implement the solution.

For a hydraulic engine design, the following designing parts are vital;

Driving surface area as subject to differential pressures
How to achieve continuous rotation
Mechanical connection

Pressures are important due to motor displacements. Fuel burns in the cylinder to cause power through fuel gases burning and expansion which is the four-stroke cycle. Continuous rotation will come in the design considerations through reciprocating motions of pistons into rotary motions. Mechanical connections are vital especially in crank shaft turns, gear box that turns horizontal motions to spinning motions and finally the propeller that drives the boat on the water.

7 0

3 years ago

Base course aggregate has a target density of 121.8 lb/ft3 in place It will be laid down and compacted in a rectangular street r

irakobra [83]

Answer:

total weight of the aggregate = 3594878.28 lbs

Explanation:

given data

density = 121.8 lb/ft³

area = 1000 ft x 60 ft x 6 in = 1000 ft x 60 ft x 0.5 ft

moisture = 3.5 %

compaction = 95%

solution

we get here first volume of the space that is filled with the aggregate that is

volume = 1000 ft x 60 ft x 0.5 ft = 30,000 cu ft

now we get fill space with aggregate that compact to 95% of dry density.

so we fill space with aggregate of density that is = 95% of 121.8

= 115.71 lb/ cu ft

so now dry weight of aggregate is

dry weight of aggregate = 30,000 × 115.71 = 3471300 lb

when we assume that moisture percentage is by weight

then weight of the moisture in aggregate will be

weight of the moisture in aggregate = 3.56 % of 3471300 lb

weight of the moisture in aggregate = 123578.28 lbs

and

we get total weight of the aggregate to fill space that is

total weight of the aggregate = 3471300 lb +123578.28 lb

total weight of the aggregate = 3594878.28 lbs

4 0

3 years ago