Lab Report Aircond
Lab Report Aircond
Lab Report Aircond
processes found in practical air conditioning plant, such as heating, cooling, humidification,
dehumidification air stream. Sometime two or more of these process are needed to bring air to adesired
temperature and humidity level. Various air conditioning processes in psychrometric chart. Notice that
simple heating and cooling processes appear as horizontal line on this chart since moisture content of the air
remains constant ( = constant) during this processes. Air is commonly heated and humidified in winter and
cooled and dehumidified in summer. Notice how these processes appear on the psychrometric.
INTRODUCTION
Air conditioning is the conditioning of air within a defined space, usually a residence or a
place of business. Conditioning usually involves heating or cooling, humidifying or
dehumidifying, and filtering or cleaning air and controlling its moisture level:
conditioning it to provide maximum indoor comfort. An air conditioner transfers heat
from the inside of a building, where it is not wanted, to the outside. Refrigerant in the
system absorbs the excess heat and is pumped through a closed system of piping to an
outside coil. A fan blows outside air over the hot coil, transferring heat from the
refrigerant to the outdoor air. It is because the heat is removed from the indoor air, the
indoor
area
is
cooled.
Air-conditioning is a system giving automatic control of the required environmental conditions, by
method of heating, cooling, humidification, dehumidification, cleaning and movement of air in the
building,
vehicles
and
others.
These control conditions may be desirable to maintain the health and comfort of the occupants or to
meet the requirements of industrial process irrespective of the external climatic conditions.
Suitable environment for plants growth, process, electronic and laboratory areas
Less risk of fire or damage due to static electricity caused by dry air
Usage
OBJECTIVE
To examine the air conditioning performance with regarding to the requirement 24'C of in a building
temperature
1.
APPARATUS:
Thermometer
2.
3.
Measurement tape
METHODOLOGY:
1.
A room is selected
2.
The different thermometer is placed at the different location with the same distance each
other.
3.
4.
The reading of temperature and relative humidity of the room is taken for different time by
different group
5.
6.
DISCUSSION
For this experiment, we have chosen the building services laboratory 1 as our location. 12
thermometers have been placed in 12 different positions such as at the fluorescent lamp, airconditioning inlet, air-conditioning outlet, and sprinkler and also outside the laboratory. The distance
of all thermometers is same. The readings of 12 thermometers are taken for every 1 hour time
interval.
The experiment we have done shows that the two different graphs of average temperature and
temperature obtained from logger meter. In overall, at 10 11 am, the average temperature taking
from thermometer at 12 different positions and the reading of logger meter is the highest value by
23.68 and
22.20 respectively.
From the both graph, we can see both are obviously different. It may because of the present of some
error during taking the reading of thermometer. The person who taking the thermometer reading may
not in proper condition such as his eyes may not perpendicular to the point of view (parallax error).
Parallax
error
will
cause
inaccurate
reading
of
thermometer.
Besides that, different data collector may differ the way the reading is taken. As the thermometers
are hanging up manually by a person, the distance may not the same. It is also can affect the
reading of the thermometer. It is because the further distance the lower temperature.
CONCLUSION
From the experiment that we have done, we can get know about the air conditioning system.
Usually, split unit system will be used to almost building. In split unit system, the compressor will be
installed outside the building. There are usually used to heat and cool one or more rooms, or an
open-plan
area,
of
up
to
60m^2.
Different place may install the different types of air conditioner system. For example, a ducted
system is usually installed in the roof or outside on the ground, and ducted to air outlets throughout
the building. For this building that we have observed along this experiment, the ducted system has
been used as the building is very big.Split unit system is not efficient to install in the multi-level
building.
Therefore, the experiment is successful as the result is accepted by the requirement of 24'C for a
building. Although the temperature obtained from this experiment is not exactly 24'C, but the value is
approaching
the
requirement 24'C.
RECOMMENDATION
1.
2.
3.
4.
The eyes must be perpendicular to the point of view during taking the reading of
thermometer.
Take the reading at least three times for the best results.
REFERENCES
1.
2.
3.
4.
http://www.aelag.com.au/air-conditioning-type