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Sveta_85 [38]
3 years ago
7

Explain three (3) modes of heat transfer in air conditioning system.

Engineering
1 answer:
LenKa [72]3 years ago
4 0

Answer:

1. Conduction

2. Convection

3. Radiation

Explanation:

The 3 modes of heat transfer i an air conditioning system:

1. Conduction:

The transfer of heat by conduction  takes place in solid and is when the conduction takes place as a result of direct contact in between the interacting material which transfer the heat energy from particle to particle thus conducting the heat through out the system.

2. Convection:

The other mode for the transfer of heat which takes place especially in fluids - gases and liquids is through the technique of convection in which the transfer of heat takes place by the circular motion of the atoms and molecules of the fluid which carries the heat energy and results in the distribution of the heated fluid in the entire system thus transferring all the heat energy in the entire system.

3. Radiation:

The third mode of heat transfer in the air conditioning system is through radiation. This method transfers the heat by making use of the electro-magnetic radiation in the infra red spectrum where the waves of the spectrum transfers the heat energy with the help of a medium or without any medium at all.

Thus making the radiation method of heat transfer as the only method out of the three methods which does not require the material medium for the transfer of heat energy.

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Answer:

I would say an Oblique drawing.

Explanation:

An oblique drawing uses 45 degree angles.

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4 years ago
Select the correct answer.
babunello [35]

Answer:

The information he needs next is;

B. Volume of paint needed per unit area

Explanation:

The operation Andy wants to perform = To apply paint on the walls of the house

The information Andy knows = The area of all walls in the house

The total volume of paint needed = The total area of the walls × The volume of paint needed for each unit area

Therefore, the information required is the volume of paint needed per unit area.

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3 years ago
An office worker claims that a cup of cold coffee on his table warmed up to 80°C by picking up energy from the surrounding air,
kherson [118]

Answer:

The claim is false and violate the zeroth law of thermodynamics.

Explanation:

Zeroth law of thermodynamics refers to thermal equilibrium among  elements. It states that  elements which different temperatures will reach the same temperature at the endgame if they are close enough to interact each other. This temperaure is called <em>equilibrium temperature and it is always a intermediate value between the element with highest temperature and the element with the lowest one. So there is no way </em> a cup of cold coffee on a table can warm up to 80°C picking up energy from the surrounding air at 25°C because the cup can only reach a temperature closer to the surrounding air temperature which will be the equilimbrium temperature for that case.

4 0
3 years ago
Read 2 more answers
What does pineapple do for my va jay jay
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Answer:

Pineapple packs vitamin B, fiber, and a heaping dose of vitamin C, after all. But at the end of the day, maybe it's okay if your va jay jay just smells and tastes… like a va jay jay. Your scent naturally changes a bit throughout your menstrual cycle, but it probably shouldn't ever taste or smell like a tropical fruit.

Explanation:

8 0
3 years ago
A journeyman electrician with 16 years experience on-the-job was removing metal fish tape from a hole at the base of a metal lig
Romashka-Z-Leto [24]

Answer: He should have ensured the following before beginning work;

1) All circuits must be de-energized before beginning work

2) All controls must be deactivated during work. LOTO(Log out tag out) must be practiced irrespective of the experience of the electrian or worker.

3) Technicians and Electrical workers must be instructed to know the unsafe conditions associated with their work.

Explanation:

We cannot assume that because he is experienced he cannot be prone to all this wrong practices. Humans tend to think that with experience people become less prone to errors and study has shown that this is not true. Safety must be a priority.

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3 years ago
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