How many types of air conditioning unit?
There are six types:-
What is a central air conditioner?
It is the best air conditioner for the one living in a large home and wishes to cool multiple rooms at once.
This system is a combination of two main units. The outdoor unit pack in the condenser and compressor, while evaporator coils and air handler comprises the indoor unit.
Advantages of Central air conditioner :
create a cooler and regulated environment around the house in very little time.
❖Humidity is reduced around the house as the cool air is circulating in all rooms which makes the overall environment more comfortable.
Disadvantages of Central air conditioner
❖In case any problem arises in the duct, it may lose efficiency and effectiveness.
What is a ductless mini-split air conditioner?
It’s the best choice seems to those who want better efficiency or a lot of ducting or simply want a portion of the home to be cooled. This type of sir conditioner comprises an outdoor unit of a compressor and a condenser which come with one or more than one indoor unit. Indoor units are equipped with an air blower and mounted on a wall.
A split-system air conditioner has its cooling unit and condensing unit split at two different places. The cooling unit, consisting of the expansion valve and the cold coil, is generally placed inside the office or premises. The blower fan blows air through the coil and routes the air throughout the building using a series of ducts. The hot unit known as the condensing unit is kept outside the office or room.
The condensing unit consists of a long spiral coil shaped like a cylinder. Inside the coil, there is a fan to blow air through the coil along with a compressor and some control logic.
This split AC has evolved because its noise is reduced inside the house as the condensing unit which makes noise and generates heat is kept outside the cooling room. There is no fundamental difference between a split AC and a window air conditioner except that the condensing and cooling units are split and kept separately in split AC and the capacity is higher, making the coils and compressor larger.
In premises like warehouses, businesses, malls, large department stores, etc., the condensing unit normally lives on the roof and can be quite massive. Alternatively, many smaller units are found on the roof, each attached inside to a small air handler that cools a specific zone in the building
A tube connects the indoor and outdoor unit and a refrigerant keeps circulating through them with a variation that depends on its usage. These indoor units are so small and compact that each room get its unit installed which can either be used for
heating or cooling purposes.
It consumes less energy compared to some other air conditioners, but installing it in each room to cover the entire house may cost a lot.
Advantages of ductless mini-split air conditioner :
consume less labor and less effort to operate.
❖It is used to control the temperature of each room
particularly, which gives us the benefit of having different
the temperature in different rooms.
Disadvantages of ductless mini-split air conditioner :
conditioner to cool a large home.
❖The indoor unit of a ductless mini-split air conditioner is
visible to the naked eyes as it is wall mounted.
What is a window air conditioner?
Advantages of Window air conditioner
❖It’s very easy to maintain it.
Disadvantages of Window air conditioner
noise while operating.
❖This makes the view from the window dim and it’s necessary to install it near an electrical outlet.
What is a portable air conditioner
This air conditioner is very similar to a window air conditioner but it is free-standing and hence it can be moved from room to room. It has also a single unit which enclosed all its components inside it. Its requirement is a power outlet to give it electricity and access to the window through which it can exhaust its air by using itself.
then this is the best air conditioner. These air conditioners are smaller versions and handy which can be installed in shorter places.
- Advanced technology exhausts humidity so there is no need to empty a bucket on some models.
- Operates on air alone and requires no water to cool.
- Features an antibacterial filter that collects dust particles and prevents bacteria on some models.
- Built-in safety features: antifreeze auto-shutoff and 24 hr programmable timer with bypass option.
- Multi-speed fan control.
- Fan motor protection and a double condenser or simple centrifugal fan.
- Easy-roll casters and handgrips for full portability.
- Heavy-duty, all-metal cabinet, low noise levels/fully insulated cabinet, copper interior pipes, high quality finned evaporator.
- Can be installed permanently or semi-permanently virtually anywhere if desired.
- Is exhausted through an extendable hose that can be used in conjunction with the window bracket. It can also be vented through a drop ceiling or a wall.
- Built-in dehumidifier: removes moisture.
- We have the best warranty!
- Peripheral Manufacturing is a Leader in Portable Room Air Conditioners.
Advantages of portable AC :
❖There is no requirement for any permanent installation
of this air conditioner.
Disadvantages of portable air conditioner :
❖It can’t cool down the larger room.
What is a hybrid air conditioner
usage of electricity and the burning of fossil fuels by detecting the temperature outside.
and in winter, it pushes the heat inside to maintain temperature, and when the heat pump is too cold to function
properly, the furnace starts working.
Advantages of Hybrid air conditioner :
❖It also minimizes the footprints of carbon.
Disadvantages of Hybrid air conditioner :
❖It can’t go for a long duration as some parts may get breakeven in long run.
What is a geothermal air conditioner?
This system uses a piping system to circulates water between
the ground, heat pump, and your home, and this also requires
a lot of intensive work for installation in the underground.
Advantages of Geothermal air conditioner :
❖It stands for a longer duration in comparison to other air conditioners.
Disadvantages of Geothermal air conditioner :
location as it’s loops go underground.
❖The installation cost of this system is very high.
Important factors while selecting an air conditioner for your home :
Budget plays a pivotal role while selecting an air conditioner for your home.
Budget wise ranking of air conditioners:
Cheapest to expensive-
I. Window air conditioner
II. Portable air conditioner
III. Ductless mini-split air conditioner
IV. Central air conditioner
V. Hybrid air conditioner
VI. Geothermal air conditioner
Another rating is also used for energy consumption known
as SEER ( Seasonal Energy Efficiency Ratio )
11,000 which is more suitable for a normal size home.
Components of Air Conditioner:
- A window air conditioner contains:
- A compressor
- An expansion valve
- A condensing unit and hot coil (on the outside)
- A cooling unit and chilled coil (on the inside)
- A control unit
PHYSICS OF AIR COOLING IN AC :
Lussac’s law is used by chemists and manufacturers to monitor the gas behavior at different temperatures and pressures by an algebraic equation i.e. P/T = k, where k is a constant that does not change the value. This equation explains that if we compress a gas to a higher pressure, its temperature will rise and if we reduce the pressure on the refrigerant its temperature will also fall.
When we compress the gas (refrigerant) with the compressor it will get very warm. If we pump this warm gas outside our house and run it through a coil with a fan blowing air over it via condenser coil the warm cut off becomes cool enough so that some of it turns into a liquid. It is just like steam condensing into the water when it cools. The liquid in an air conditioner has a much lower boiling point than water does. So to turn gas into a liquid, we have to remove a lot of heat from it which is known as latent heat of vaporization. So, by the time our warm gas has cooled enough to turn into a liquid in the outdoor cooling coil, a large amount of heat has been removed from it which is why we find the air coming from the outdoor unit of an air conditioner to be hot.
The second phase of air cooling is just the opposite of the process once the refrigerant has cooled into a liquid it is pumped back into the coil to reduce the pressure on the refrigerant which causes it to gets colder than it was when it left the outdoor condenser coil. The cold refrigerant flows through the evaporator coil, where it absorbs heat from the air and warms back. The evaporator coil is located inside the house, and it gets very cold because of the cold refrigerant inside it. The air blowing over the coil gets cold, and we have air conditioning.
Evaporator: As explained, the outdoor condenser coil has to remove heat from the refrigerant to turn it into a liquid. And to turn it back to a gas (to make it evaporate), it has to absorb that much heat. Even though it absorbs a lot of heat, the temperature doesn’t change until it turns into a gas. So we start with a cold liquid, add a bunch of heat to it, which comes from the air in our house and we still have a cold gas. That’s why the change from gas to the liquid makes the air conditioner work much better than if we tried to do it all with gas.
By the time the refrigerant leaves the evaporator coil, it has completely turned to gas and has warmed up significantly. This is the gas that we started with at the beginning of this description, ready to be compressed to start the cycle all over again.
Frequently asked questions :
➢ What type of air conditioner is the best?
Ans- The best air conditioner is the one which is the most suitable for your house as of the above factors.