What is principle of air conditioning and requirement of comfort air conditioning?

The purpose of a comfort air conditioning system is to provide suitable conditions in the occupied space so that it is thermally comfortable to the occupants. A sedentary person at neutral condition loses about 40 \% of heat by evaporation, about 30 \% by convection and 30 \% by radiation.

What thermodynamic principle does air conditioning work on?

An air conditioner works using a thermodynamic cycle called the refrigeration cycle. It does this by changing the pressure and state of the refrigerant to absorb or release heat. The refrigerant (aka coolant) absorbs heat from inside of your home and then pumps it outside.

What is IDU and ODU in AC?

A split conditioner is divided into two separate units where compressor and condenser is the part of an external unit ODU (Outdoor Unit) whereas the internal unit has the evaporative part which we may call as IDU (Indoor Unit).

What are the three main factors of air conditioning?

There are three factors to consider above all others when making the jump. You want to look at the AC unit’s power, energy efficiency, and noise. There are many kinds of air conditioning units that can fulfill your cooling needs, but you should be able to narrow down the ones which can work the best for you.

Which coolant is used in AC?

Freon
AC Coolant—Freon (R22) Refrigerant Replacement Central air conditioners, portable air conditioners, refrigerators, freezers car AC systems, and dehumidifiers all have one thing in common: the use of a cooling agent. In the world of HVAC, we commonly refer to this cooling agent as “AC coolant.”

What is refrigerant R-32?

R-32 is a next generation refrigerant that efficiently carries heat and has lower environmental impact. Air conditioners transfer heat while circulating refrigerant between the indoor and outdoor units. Although there are various types of refrigerants, R-32 is a new refrigerant currently receiving the most interest.

Why is R410A so expensive?

R410a is actually a blend of two different refrigerants, one of which is called R125. There’s currently a world shortage of R125 because there aren’t enough plants to produce it. Without enough R125, producers can’t make enough R410a to keep up with the increasing demand.

What is the meaning of split AC?

Split AC means the air conditioning system is made up of two separate units. The air-cooled condensing unit called the compressor unit is placed outside the air-conditioned area whereas the air-handling unit is inside the room where the AC is fixed. When we talk about split AC, we usually refer to the regular split AC.