1. A hybrid system of air conditioner and air cooler comprising of an outer body housing a water tank covered with a base mounted with evaporator fan, compressor and condenser.

2. A hybrid system as claimed in claim 1, wherein the water tank comprising of water pump and water inlet with valve.

3. A hybrid system as claimed in claim 1 or 2, wherein the base is slidable.

4. A hybrid system as claimed in any of the preceding claims, wherein the outer body housing air filter with evaporator coil positioned in front of said evaporator fan.

5. A hybrid system as claimed in any of the preceding claims, wherein compressor is provided in connection with condenser connected to motor with condenser coil at its back.

6. A hybrid system as claimed in any of the preceding claims, comprising of a mode changeover flap provided between the evaporator fan and compressor.

7. A hybrid system as claimed in any of the preceding claims, wherein the condenser coil along with fan motor and change over flap may be positioned on top side.

8. A hybrid system as claimed in any of the preceding claims, wherein the outer body is covered with cooling pads on its three sides.

9. A hybrid system as claimed in any of the preceding claims, wherein the system is operational in desert cooler as well as in air conditioning mode.

10. A hybrid system of air conditioner and air cooler substantially as herein described with reference to the accompanying drawings.

FIELD OF INVENTION
This invention relates to a hybrid system of air conditioner and air cooler.
BACKGROUND OF THE PRESENT INVENTION
Presently, two types of appliances are used to cool the room namely desert cooler and air conditioner.
Desert coolers are based on the simple principle that when unsaturated air comes in contact with water, the water evaporates. In the process, the moisture content of air increases and its temperature decreases. The resulting cold but moist air is used for cooling the environment. Thus, a desert cooler is a device, which consists of an arrangement for blowing dry and hot air over a wet surface and for keeping the surface wet continuously. The cooler normally consists of a blower and a pump. Desert coolers are economical and effective in hot and dry areas. However, the disadvantage associated with it is that, it is not effective when it is humid.
An air conditioner is basically a refrigerator without the insulated box. It uses the evaporation of a refrigerant, like Freon to provide cooling. The mechanics of the Freon evaporation cycle are the same in a refrigerator as in an air conditioner. However, the drawback associated with this is that, power consumption is very high (1.5 Ton Air conditioner consumes around 1800 W).
Hence, there is a need to develop a more efficient appliance for air cooling, which overcomes the disadvantages associated with the known arts.

OBJECTS OF THE INVENTION
The primary object of the present invention is to provide a hybrid system of air conditioner and air cooler which consumes less electricity.
Another object of the present invention is to provide a hybrid system of air conditioner and air cooler which is simple in construction.
Further object of the present invention is to provide a hybrid system of air conditioner and air cooler which is efficient.
Yet another object of the present invention is to provide a hybrid system of air conditioner and air cooler which is cost effective.
Still another object of the present invention is to provide a hybrid system of air conditioner and air cooler which can be operated manually as well as automatically.
Yet another object of the present invention is to provide a hybrid system of air. conditioner and air cooler which serves purpose of both desert cooler and air conditioner.
Further object of the present invention is to provide a hybrid system of air conditioner and air cooler which is compact.
STATEMENT OF INVENTION
According to this invention, there is provided a hybrid system of air conditioner and air cooler comprising of an outer body housing a water tank covered with a base mounted with evaporator fan, compressor and condenser.

BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGS
Further objects and advantages of this invention will be more apparent from the ensuing description when read in conjunction with the accompanying drawings and wherein:
Fig. 1 shows: hybrid air conditioner of the present invention.
Fig. 2 shows: embodiment of the present invention in desert cooler mode.
Fig 3 shows: embodiment of the present invention in air conditioner
mode
Fig. 4 shows: another embodiment of the present invention in desert
cooler mode.
Fig. 5 shows: another embodiment of the present invention in air
conditioner mode.
DETAIL DESCRIPTION OF THE INVENTION WITH REFERENCE TO THE ACCOMPANYING DRAWINGS;
The present invention discloses a hybrid system of air conditioner and air cooler. The system works in desert cooler as well as in air conditioning mode.
Reference may be made to the accompanying figures 1-3. The hybrid system of the instant invention comprises of a slidable base mounted with evaporator coil with air filter in the front. Further, an evaporator fan with motor is provided behind the coil. The water tank below the slidable base comprising of water pump and water inlet with valve.

Again, compressor and condenser fan motor connected to condenser blower with condenser coil there behind are provided at back.
The aforesaid arrangement is accommodated in an outer body. The body is covered with cooling pads on its three sides.
Further, provision has been made for a mode change over flap inside the outer body. It provides the desired air flow path according to the two different modes (desert cooler and refrigerant circuit mode).
In another embodiment of the present invention (as shown in fig 4 & 5), the condenser coil along with fan motor and changeover flap are positioned on top side maintaining the same working principle.
The main advantages of aforesaid embodiment are as follows:-
a) Better efficiency due to upward movement of the hot air.
b) Increase in effective cooling pad...area because all the three sides are free for air flow from all three sides.
The main components of the hybrid AC with their functions are as follows:-
Compressor: The gaseous refrigerant is compressed in the compressor and thus heated up considerably. It is pressed into the condenser under high pressure. This results in heat to be withdrawn from the heated up refrigerant, which leads to its condensation, i. e. its state changes from gaseous to liquid.

Condenser: The compressed refrigerant by compressor is injected to condenser coil to high pressure, which enable it to leave the heat into the outside environment.
Condenser Fan: It throws the outside room air on the condenser coil and enhances the heat exchange from condenser to outside air.
Evaporator: This allows the refrigerant to evaporate and expand. It becomes cooled and absorbs the room heat.
Evaporator Fan: It throws the room air on the evaporator coil to enhance the heat exchange.
Cooling pads: This is the kind of mat made of wood peeling to spread the contact area of water with air commonly used as cooling media in desert coolers.
Water pump: The function of water pump is to supply the water on cooling pads applied on all three sides of outer body. It makes it wet by continuous water supply.
Mode changeover flap mechanism: This is a mode change over mechanism (manual or automatic type as per need of user) to control the operation in dry and humid environment. It provides the desired air flow path as per design for two different modes. (Desert cooler mode and Refrigerant circuit mode)
Refrigerant piping: These are connecting metal pipes to make a closed and sealed refrigeration circuit which allows the refrigerant gas flow.

Existing and New parts list (basisAir conditioner)
(Table Removed)
WORKING PRINCIPLE: The Hybrid air-conditioner works in two different modes as per weather condition. The working phenomena are given herein below.
Desert cooler mode (fig. 2 and 4): The appliance works in desert cooler mode (manually selected or automated as per designer choice) in the condition when outside environment humidity is lower (dry summer).
In this mode the refrigeration system is not operational (i.e: compressor is in off condition) and water pump, evaporator fan are in working condition (switched on). The dry hot air is sucked in by evaporator fan motor through cooling pad. The dry hot air is cooled by water evaporation principle, which is supplied inside room continuously. So that, room temperature is cooled down. Advantages:
a) Low electrical power consumption compared to Air conditioner mode (20% of AC mode)
b) More comfortable cooling in dry summer due to moisture in dry air.

Air conditioning mode (fig. 3 and 5): The appliance works in 'Air-conditioner mode' (manually selected or automated as per designer choice) in the condition when outside environment humidity is higher (Rainy season and high humid days).
In this mode the refrigeration circuit is operational and mode changeover flap shifts to other position (stops the outside air to enter inside room). Now the outside air is cooled through cooling pad and passes through the condenser to be supplied through top duct (Airflow is shown in the AC mode figure). In this, the cold air is passed through the condenser to enhance the cooling efficiency of system as additional benefit compared to the conventional Air-conditioner.
The room air is sucked by evaporator fan motor and passed through chilled evaporator coil to supply cold air to room again for cooling the room.
Advantages:
a) High efficiency due to dual cooling of condenser, (first stage air cooling by cooling pad and then cold air thrown on condenser for better heat exchange), Which leads to power saving in Air conditioner mode.

Electrical parts control matrix in two different modes:
ON / OFF CONTROL OF ELECTRICAL PARTS IN TWO DIFFERENT MODE
(Table Removed)
emarks: About 19% improvement observed in energy efficiency ratio while conducting a test on 1 Ton AC with water Pump ON in AC mode.
Energy saving sample calculation:
Casel: Using conventional 1.5 Ton Air conditioner for 6 month usage,
the average monthly electricity bill is around:
Watt hours units = (1800 W x 10hrs x 60%)x Rs 4 per unit x 30
days/1000 ≈ Rs 1300.
Total expense of electricity for 6 month is = 1300 x 6 ≈ Rs 7800
Case 2: Using the hybrid air conditioner for same period :-
a) In dry days per month electricity consumption in desert cooler mode is: A= (300Wx 10 hrs x Rs 4 per unit x 30 days)/1000 = Rs 360
b) During humid days electricity consumption for remaining 3 months: is :
B = Rs 1300 x 0.85 (dual cooling pad effect 15%) x 3 month ≈ Rs 3300
Total expense for 6 month = A+B = 360 + 3500 = Rs 3660
Hence, there is almost 50% electricity saving by using the hybrid AC.
Thus, the present invention is integration of principles of refrigeration cycle and desert coolers water evaporation cooling into one single device using some common parts and some additional part and by arranging them in a way to achieve the desired cooling performance.
The important aspect is 50% electricity saving as compared to conventional Air conditioner.
lilt is to be noted that the present invention is susceptible to modifications, adaptations and changes by those skilled in the art. Such variant embodiments employing the concepts and features of this invention are intended to be within the scope of the present invention, which is further set forth under the following claims:-

WE CLAIM:
1. A hybrid system of air conditioner and air cooler comprising of an outer body housing a water tank covered with a base mounted with evaporator fan, compressor and condenser.
2. A hybrid system as claimed in claim 1, wherein the water tank comprising of water pump and water inlet with valve.
3. A hybrid system as claimed in claim 1 or 2, wherein the base is slidable.
4. A hybrid system as claimed in any of the preceding claims, wherein the outer body housing air filter with evaporator coil positioned in front of said evaporator fan.
5. A hybrid system as claimed in any of the preceding claims, wherein compressor is provided in connection with condenser connected to motor with condenser coil at its back.
6. A hybrid system as claimed in any of the preceding claims, comprising of a mode changeover flap provided between the evaporator fan and compressor.
7. A hybrid system as claimed in any of the preceding claims, wherein the condenser coil along with fan motor and change over flap may be positioned on top side.
8. A hybrid system as claimed in any of the preceding claims, wherein the outer body is covered with cooling pads on its three sides.
9. A hybrid system as claimed in any of the preceding claims, wherein the system is operational in desert cooler as well as in air conditioning mode.
10. A hybrid system of air conditioner and air cooler substantially as herein described with reference to the accompanying drawings.