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AN IMPROVED AIR COOLING SYSTEM.
[Category : - DESIGN PATENTS]
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India is situated and located in such a geographical reason where the climate during summer is very hot and humid. Particularly in the interregnum period of down the summer and advent of rainy season the weather in north and central India is very hot and humid. Normally in this season only air conditioners are useful to cool and control the level of humidity in a particular" closed area. The expenses and running cost of the air conditioners are very huge and cannot be afford easily by large number of people. In addition to this, the air conditioner can function only in closed area and not in an open drawing room, halls, industrial shades and offices with sectional sitting arrangements, etc.
BACKGROUND OF THE INVENTION
There are number of different methods for cooling a flowing stream of air. Indirect evaporative cooling invented in the mid seventies (eg Schlom et at U. S. Pat. No. 4,023,949 & 6,385,987) uses the latest heat of the evaporation of water to remove from the air. Direct evaporative coolers on the other hand also known as Swamp coolers cool the air by passing the air through wet pads by which the evaporative absorption of the latent heat of evaporation by the water directly cools the air. Since the water vapour evaporates directly into the air, the air ends up with high moisture content. Before the advent of refrigeration evaporative cooling was used for millennia. A porous earthenware vessel would cool water by evaporation through its walls. Evaporative cooling is a common form of cooling buildings for thermal comfort since it is relatively cheap and requires less energy than other forms of cooling. Evaporative cooling is only effective when the relative humidity is on the low side limiting its popularity to dry climates. Evaporative cooling raises the internal humidity level significantly which desert inhabitants may appreciate as the moist air re- hydrates dry skin and sinuses. Exhaust desert, open windows must be used at all times to allow the cooled humidified air to continually escape the air conditioned area.
U S Pat No. 8490422 B2 describes an evaporative air cooler with multistage cooling or having with or without cooling coil.
U S Pat No. 20130081414 Al describes an evaporative cooler that includes a frame, a plurality of pads attached to the frame so that the pads substantially enclose an air space to be cooled, a water delivery device positioned at or near the top of the pads to wet the pads a plurality of drain pans positioned at or near the bottom of the pads to collect water from the pads and a fan to draw air through the wetted pads, thereby cooling the air by evaporation.
OBJECTIVE OF THE INVENTION:
1. The objective of the present invention is to provide an improved air cooling system which is cheap, affordable and economic as compared to the existing air conditioners.
2. The another objective of the present invention is to devise a mechanism that it is very energy efficient. The present invention requires less electricity consumption to operate as compared to air conditioner.
3. The another objective of the present invention is that the total power consumption in an improved air cooling system is not more than 0.9 to 1.5 Amp per hours which is around and approx a usage of 200 to 500 Watts per hours for cooling an area of around 200 to 300 sq ft. (Hall or Room).
4. The another objective of the present improved air cooling system is that it makes less noise as compared to the traditional air cooler.
5. The another objective of the present invention is that the present air cooling system controls humidity level as well as compared to traditional air coolers.
6. The another objective of the present invention is that as compared to traditional air coolers an improved air cooling system can cool the larger space of the room up to a comfortable temperature.
7. The another objective of the present invention is that an improved air cooling system also has an air filter installed at the three sides of the suction part so that the dust level can be reduced on the pads as the fresh air strike on the wet pads the water automatically helps to stop the dust and dirt to enter the room/hall.
SUMMARY OF THE INVENTION
The present air cooling system has wood wool pads from three sides through which the fresh air from outside flows in. One fan is also fitted on the front side in central as normally we see in the normal air cooling system. The water that is circulated on these pads is cooled down at very low temperature i.e. around 10 degree centigrade by using a refrigerating compressor. The outside fresh air passes through the pads from three sides and cooled air circulates through the pads. Due to very low degree of water circulating through the pads the fresh air coming from the outside is also chilled after coming in contact with the chilled water.
A separate container is installed with the present system which contains water in it. Cooling coil which is also installed in the container through which compressed air coming from the compressor is passed in order to give the cooling effect to the cooling coil. The cooling coil is placed in the container in such manner that the coil remains under water of the container. The cooled air coming from the compressor is passed through the coil which in return makes ice of the water stored in the container. The water stored in the container being iced by the air is pumped and circulated and re-circulated on the tree sides of pads. With the continuous rotation of the water, the temperature keeps on lowering down. The fresh air being sucked by the fan passes through the chilled water and gets chilled. The chilled air further cool the surrounding and the temperature is brought down to 20-25 degree centigrade with RH Relative Humidity) of 40-45%. The percentage of, humidity is also lowered due to low temperature of air.
DETAILED DESCRIPTION OF THE DRAWING
Fig:-1 is the diagram of the present air cooler illustrating the different parts of present invention.
Figure 1 is the diagram of the present invention illustrating the cooling system which comprises of the cooler body (10), bucket (11), wood wool pad (12), axial
flow fan (13), compressor (14), discharge line (15), condenser (16), suction line (17) liquid line (18), Over flow water(19), expansion device (20), evaporator (21), refrigerated cool water (21).
The present invention of an improved cooling system has three sides wood wool pads (12) through which fresh air from outside flows in. This wood wool pads (12) acts as wet section and is made of wood silvers cut from the logs and are used for cooling pads in an improved cooling system. This wood wool pads has very high volume and large surface area. It has very good water retention capacity which helps in the circulation of water.
The present invention mainly depends upon the working principle of the refrigeration cycle. Earlier the cooler functions on the simple evaporative principle which are unable to give the chilled cooling effect in the room and it only give the cooling air in the specified small room or covered room. In this present invention a cylindrical metallic tank/bucket (11) is installed in the cooler body which contained the chilled water which helps in the cooling of the remaining water in the cooler body which are attached with the kind of refrigerator compressor(14) that is installed inside the cooler body (10) at the stand. This kind of refrigerator compressor starts and brings down the temperature of water to as low as 10 degree centigrade from an initial temperature of about 35 degree centigrade or above. The metallic tank contained the chilled freezing water which helps in keeping the water cooled in the cooler body and increases the cooling capacity of an improved cooling system. The present invention works on the principle of refrigeration which consists of the four main parts i.e. compressor (14), Condenser (12), expansion device (20) and an evaporator (21). The refrigerant leaving the compressor (14) in the gaseous state and at a high pressure and temperature. Here the heat is taken from the low temperature water reservoir i.e. metallic water tank (11) which contained in the tank (11) to the high temperature reservoir. The compressor sucks through the suction line (17) low pressure and low temperature refrigerant from the evaporator (21) and compresses it to high pressure and high temperature gaseous state. The size of the compressor (14) depends upon the size of the cooling system. The high pressure and
temperature gas then enters the condenser. The gas then runs through the coils that cause the heat to dissipate which condenses it back to a liquid. The condensed liquid then runs through an expansion device (20) where it evaporates and become a cold gas which pulls heat from the surrounding air. The gas runs through another set of coils and a blower i.e. axial flow fan (13) blows the cold air inside the spaces or the halls. The capillary tube is designed for constant temperature and pressure and operates as throttle between the condenser (16) and the evaporator (21).
This refrigerant then enters the condenser (16) where it loses the heat to the coolant of water. After passing through the condenser (16) the refrigerant gets condensed but still remains at high pressure. It comes out in a partially liquid and gaseous state and then enters through the expansion device (20). This air cooled condenser (16) also known as coil condenser as they are usually made of copper or aluminium. The refrigerant keeps on flowing through these components in a continuous cycle. The high pressure and medium temperature condensed refrigerant leaves the condenser (16) and enters the expansion device (20). In expansion device (20) the pressure of the refrigerant reduces suddenly and excessively with this-the temperature of the refrigerant also reduces drastically. This low pressure and low temperature liquid refrigerant then enters the evaporator (21) and absorbs heat from the substances or the space to be cooled.
in the present invention the expansion device (20) are used to reduce the pressure levels within a given cooling system and ensure it continuous to function efficiently work as part of the evaporating system and assist with regulating the extraction and omission of cold and hot air. The low temperature liquid refrigerant enters the evaporator (21) and produces the chilling effect for refrigeration. The space comprising the evaporator (21) is an enclosed space. The evaporator section is usually insulated by using insulating materials. The low temperature refrigerant flowing through the evaporator (21) absorbs heat from the substances or any other enclosed space and gets converted into a gaseous state at its temperature rises. This is then sucked by the suction line (17) by the compressor (14) which compress it keeping the cycle of refrigerating the water
continues. Evaporator (21) is called cooling coil. Usually the fan would pass the hot room air over the evaporator coil, which is chilled hence the air gets cooled. This air is then supplied into the room, where it creates the cooling effect by absorbing heat from the room. Evaporator acts as chillar and is in the form of a copper coil over which several fins are welded to increase the cooling area of the evaporator (21).
We Claim:-
1. An improved Air cooling system wherein the water is cooled with the help of refrigerator compressor to 5-7 degree centigrade with the help of condenser, expansion device and an evaporator and wherein the body of the cooler has three sides wood wooi pads through which the chilled water passes through with the help of the pump; also having axial fan which used to flow in clear and chilled air in the cooling areas by receiving the fresh air from outside flows in which supports in the circulation of the water through the pump and this cooling system works on the principle of refrigerator system which consumes less energy and also produces less noise and cools the surroundings to 15-20 degree centigrade with minimum level of humidity.
2. An improved air cooling system as claimed in claim 1, wherein a separate container water is installed in the base of the body of the cooler which is called as a evaporator which is attached with the refrigerator compressor and makes the ice water contained in the container by the refrigerating system;
3. An improved air cooling system as claimed in claim2, wherein the container containing iced water installed in the base of the body of the cooler is connected with the compressor, condenser, expansion device and evaporator;
4. An improved air cooling system as claimed in claim 2, wherein the container containing the iced water is installed in the base body of the air cooler containing water is chilled / cooled on to 5-7 degree centigrade by coming into contact with the body of the container containing iced water.
5. An improved cooling system as claimed in claim 1, wherein the celiulosic pads are used are of wood wool pads which has high water retention capacity.
6. An improved air cooling system as claimed in claim 1, wherein an air filter installed at the wood wool pad so that the dust level can be reduced on the pads as the fresh air strike on the wet pads.
7. An improved cooling system as claimed in claim 1. wherein a kind of refrigerator compressor are used to lower down the temperature of water upto 5- 7 degree centigrade.
8. An improved cooling system as claimed in claim 2, wherein the compressor installed inside the cooling system which begins to make ice in the water reservoir which is a metallic water tank where the cooling coil are installed which recirculates the water in the cooling system water tank.
9. An improved air cooling system as claimed in claim
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