The present invention broadly relates to the field of HVAC and refrigeration systems. More specifically, it pertains to an energy efficient machine for atmospheric vapor condensation and air conditioning.
BACKGROUND OF THE INVENTION
Air conditioning unit plays a vital role and is very necessary especially in tropical regions where excess heat is available and to curb the heat it is employed extensively.
Current HVAC system is available to cool the confined space where HVAC system is mounted comprising of various refrigerating components and simultaneously transform water from vapors present in atmosphere in that confined space but the main drawback arises that these components draws lot of power or energy to operate in the regions and is not affordable to everyone.
Secondly, water shortage is considered as a huge crisis in the world especially in those regions where water scarcity is very high. In addition, shortage in supply of potable water is increasing at an immense rate particularly in deserts where natural ground water resources are being depleted.
Demand for potable water in tropical areas as well as need of air conditioning for people residing in tropical regions to counter the excess heat as well as to calm themselves. Considering the fact that the moisture content is abundant in tropical regions, a strong need is felt to develop a unique apparatus which can extract the moisture present in air, transform it into potable water and simultaneously cool the atmosphere. Consequently resolving and curbing the issue of water scarcity and excess heat.
Current technology related to air conditioning of air is available but is not within the budget of lower and middle class family of India as well as abroad. Moreover, the current existing technology is not efficient enough and usually delivers low performance yet has high operating cost. Similarly there are plenty of machines available in market with several mechanisms to extract potable water from moisture present in atmosphere. But are not efficient enough and still deliver low mechanical efficiency with respect to power consumption. No single machine which is energy efficient and which can perform dual function of atmospheric vapor condensation and air conditioning simultaneously.

Problems / Limitations in existing machines for atmospheric vapor condensation and air conditioning
The current prior arts and already existing inventions use refrigeration gases (refrigerant) as a
working fluid which goes through various thermodynamic cyclic processes. The atmospheric
air works as a medium and passes through condenser and evaporator coils to condense where
the cooled and condensed water is obtained. At the evaporator, heat is exchanged from the air
to working fluid. This process for conversion of atmospheric air into potable water from
atmosphere which employs refrigeration gases for assisting in mechanism. Therefore, making
the system costlier, complex, bulky and therefore demands maintenance in regular interval of
time.
Moreover, the refrigerant gases being used are toxic in nature thereby harmful to human beings
as well as to environment. The primary substance in machine is refrigerant and if it leaks the
entire system or operation goes down. The chances of leakage increase with the passage of
time. Also the cost of detecting leakage and repairing it increases the maintenance cost.
The high pressure compressor, metering device and evaporator are generally required in all
current inventions to complete the water generating process and therefore become an
integrating part of water generating machine.
But generally mechanisms which are simple and fulfill the operation (mechanism) of above
mentioned components without utilizing it and enhancing efficiency of operation, smoothness
and cost effectiveness of machine are preferable.
INNOVATIVE SOLUTION PROPOSED BY THE INVENTOR
The present invention is the solution of the above-mentioned problems. It comprises of several refrigerating components required to generate potable water from atmospheric air. The atmospheric air is itself used as a working fluid where it goes into an arranged pattern of refrigerating components to achieve the scope of invention. The system has high mechanical efficiency and is cost effective because of very components used yet fulfilling the aim of invention. It avoids the need of refrigerant thus saving a lot of money on maintenance charges. Working fluid remains in single phase only throughout the process comparatively to the other systems in which working fluid changes its phase while working in the cycle. The state of water vapor present in atmosphere is changed into liquid only after expansion through expander. Only small amount of work input and power is required at the compressor to compress the air up to the required low compression pressure and hence saving a lot of energy in compare with the

another invention where high energy input and power is required to compress the air to high
pressure.
No usage of high cost physical properties detection sensor (pressure and volume) is
implemented at each physical property variable by passing through various machine
components. Therefore, enhancing the cost effectiveness of invention and reducing maintenance
cost required in regular interval of time to ensure proper working.

PRIOR ART PATENTS/ RESEARCH ARTICLES AND THEIR LIMITATIONS
Already disclosed inventions and their comparisons with the present invention are shown below in table for the better understanding of the invention.
Comparison with present invention
S no.
Patent application no./ Research Article

US 6755037 B2: Apparatus and method for extracting filtered potable drinking water from air through the use of a refrigeration system including a compressor, evaporator, fan, condenser and a reservoir system may be provided as an indoor unit window or wall mounted unit or a portable or mobile indoor/outdoor unit, and may be integrated with an existing air conditioning system and/or a conventional refrigerator, or mounted in a vehicle The apparatus may also function as a dehumidifier, an air purifier, or a heat pump for cooling or heating air. In some embodiments the compressor, condenser, and water dispenser are remote from the housing. Collected water may be cooled by a secondary evaporator and heated by a secondary condenser or strip heater. The secondary condenser and secondary

In the current invention no such evaporator is used and atmospheric air is itself used as working fluid from which the water is to be extracted. The current invention works on the principle of "Air Standard Reversed Open Brayton Cycle", which don't follow the cyclic process. In addition to that the state of working fluid is not changed at any stage throughout the thermodynamic process involved. It is the open one. In the devised mechanism the compressed cool air is expanded which lead to cool down the air below its DPT with the help of expander directly on the perforated plates from where the portable water and dehumidified air is obtained.

evaporator may be connected with a secondary compressor to isolate the system for cooling water from that of condensing the air.
US 9222689 B2: The patent discloses an air conditioning and potable water generating system in which a cooling element condenses water from atmospheric air is operable two switch between an air conditioning mode, in which cooled atmospheric air from which water has been extracted is supplied to a building's interior environment, and a water generating mode, in which communication of such supply air into the building interior is closed off. The system can thus be operated to collect water regardless of whether cooling of the building interior is required at a particular point in time. Use of the same cooling element in each mode provides and use of return air from the building to mix with incoming fresh air and cool the heat dissipating element of the cooling system make for efficient operation. Controls of the system are operable to change a mixture ratio of the fresh atmospheric air and circulating return air.
US2008027661: A method and machine to produce drinking water from fresh air using energy saving environmentally friendly chillers comprising the following steps of: Filtering and sterilize

The current invention works on the principle of "Air Standard Reversed Open Brayton Cycle", which don't follow the cyclic process.
In the current invention an array of perforated metallic plates are used. The uniform perforated metallic plates has uniform pores in it for the passage of cooled and condensed low temperature water droplet that is gathered and aggregate into the larger water drop due to the cohesion between the water droplets. These water droplets will move towards the downward direction due to gravity and can be easily collected below from the bottom most plate. In the current invention heat exchanger is used instead of condenser because of no phase change of working fluid (air) is required. In the current invention it has developed an efficient mechanism for extraction of water from atmosphere without requirement of evaporator.
The current invention uses atmospheric air as
working fluid instead of refrigerant gas (brine
solution).
The current invention is used for the dual
purpose i.e. for extraction of portable drinking

fresh air, then passed to several evaporator coils to condensate the moisture and the condensate collected to a pan. Passing secondary condenser by cold air after passing evaporator coil and dipping tertiary condenser to a cold condensate water tank, so the refrigerant after the condenser will be sub-cooled and after passing through the expansion valve, will heat exchange with the brine as a secondary refrigerant in the heat exchanger.
Where brine is passed to several evaporator coils in air handling unit to cool and condensate the moisture passing through the air handling unit, a part of the air will condensate and the other part will passed to a cooled room where the cold air of the room then will exhaust and used to cool the main condenser through the exhaust air duct. water from the atmosphere as well as cooled
dehumidified air is also obtained.
The refrigerant used in invention is itself a
working fluid (air) which undergoes through
several refrigerating components to acquire the
complete process.
The invention does not uses any uses chiller for
removal of heat from liquid
It removes heat from compressed humid air via
heat exchanger instead of condenser to avoid the
phase change of working fluid which is air.
In the current invention it has developed an
efficient mechanism for extraction of water from
atmosphere without requirement of evaporator.
No requirement of pump is needed as the entire
system is operating in the form of gas.
No relevant patent was found in Indian Patent database.
Therefore, it can be concluded from the above that in spite of all the efforts made, the solutions previously proposed and known in the prior art do not meet all the essential requirements which are taken into consideration in the present invention.
5 OBJECTS OF THE INVENTION
The primary object of the present invention is to extract the moisture from air and transform into water and simultaneously air-conditioning the environment.
One more object of the invention is to increase the efficiency as well as performance of the entire process while reducing the cost of the entire process. 10 Still another object of the invention is to subsequently reduce reducing maintenance cost required in regular interval of time to ensure proper working.
6

SUMMARY OF THE INVENTION
The present invention discloses a mechanically designed and developed energy efficient machine which comprises of an Inlet of the air duct comprised of intake fan (2) which sucks the moisture air (humid air) from atmosphere and further passing to the inlet of low pressure 5 compressor (3), Centrifugal compressor (3) compresses the sucked air thereby increasing the pressure and temperature below the saturation pressure (phase change),Shell tube heat exchanger (4) is employed to extract heat from compressed air and reducing the temperature to nearby surrounding temperature where the pressure remains constant and is a substitute to a condenser as no phase change is required during that particular process. The cooled and
10 compressed air is further passes in the expander (5) where expansion of air takes place below dew point temperature of air at the outlet of expander (5). Series of perforated metallic plates (6) are employed mainly for the accumulation of water droplets generally 4 plates are used and are made of copper. Suction fan (7) is placed to the left of plates and is in perpendicular direction to the length of plates (6) and is used to suck the atmospheric air and exhaust the
15 cooled air to atmosphere. The collected water towards water filter (9) placed below the perforated plates (6) and in gravitational flow. Reservoir tank (8) is used to store filtered water and is placed directly below water filter (9) component.
BRIEF DESCRIPTION OF DRAWINGS
Fig 1: schematic diagram representing the geometrical work flow of water generating 20 machine.
1. Atmospheric Air inlet
2. Intake fan
3. Low Pressure Air Compressor
4. Air Cooled Heat Exchanger
25 5. Expander
6. Perforated Metallic Plates
7. Suction fan
8. Water Reservoir tank
9. Water filter 30 10. Faucet
DETAILED DESCRIPTION OF THE INVENTION
7

The present invention discloses an energy efficient machine for atmospheric vapor condensation and air conditioning.
In order to overcome the above mentioned limitations and conservation of electrical energy is concerned, inventors of the present invention have mechanically designed and developed a 5 machine comprising low power consumption refrigerating unit with the motive of fulfilling the aim of invention by consuming very low power.
The inventors of the present invention have developed an integrated machine which transforms water vapor present in atmosphere into potable drinking water by incorporating atmospheric air as working fluid (refrigerant gas) where it goes through the several refrigeration processes to 10 generate potable drinking water as outcome.
The present invention is an open process which works on the principle of “Air standard reversed open Bray-ton cycle” where the moisture content present in the air is converted into pure water in liquid form.
The compressor utilized in invention is a low pressure generating compressor which mainly
15 increases the working fluid (air) physical properties i.e. its pressure and temperature without
changing its phase (phase remains constant). On compressing atmospheric air, both
temperature and pressure increases (directly proportional) which remain above its
saturation point to avoid condensation (phase change) of water vapor. The compressed air
flows through air-cooled heat exchanger where it is cooled and its temperature reduces to
20 nearby surrounding temperature of atmosphere (exchange) of heat, but pressure remains
constant, as slight change in pressure can be there considering practicality but not drastic
change. The high pressure and low temperature air is then expanded adiabatically with the
help of expansion device i.e. expander. The temperature and pressure of the compressed and
condensed air is dropped down to 5-6°C and 1atm pressure after expansion through expander.
25 The temperature of the expanded air may decrease depending on the degree of compression of
atmospheric air and maximum pressure of compressed and cooled atmospheric air as well as
mass flow rate of upcoming air.
Since, the temperature of the air after expansion is very much below the dew point temperature (DPT) so the moisture content of the air will easily get condensed into the water 30 droplets after expansion.
The gas is allowed to expand directly on the series of perforated metallic plates made of copper alloy. The cooled and condensed low temperature water droplet that is gathered and aggregate into the larger water drop due to the cohesion between the water droplets.
8

These water droplets will move towards the downward direction due to gravity and can be easily collected below from the bottom most plate. This collected water below from the copper plates can be used directly after filtration. The cooled and dehumidified air is guided with the help of fan into the space that is to be conditioned or cooled. 5
Figure 1 shows the work flow diagram of energy efficient machine for atmospheric vapor condensation and air conditioning and its several components function which is described as below:
Constructional details:
The present invention discloses a mechanically designed and developed energy efficient
machine which comprises of following components mentioned below:-
10 - An Inlet of the air duct comprising of intake fan (2) which sucks the moisture air (humid
air) from atmosphere and further passing to the inlet of low pressure compressor (3).
- Centrifugal compressor (3) compresses the sucked air thereby increasing the pressure
and temperature below the saturation pressure (phase change)
- Shell tube heat exchanger (4) is employed to extract heat from compressed air and
15 reducing the temperature to nearby surrounding temperature where the pressure remains
constant and is a substitute to a condenser as no phase change is required during that particular process.
- The cooled and compressed air is further passed in the expander (5) where expansion of
air takes place below dew point temperature of air at the outlet of expander (5).
20 - Series of perforated metallic plates (6) are employed mainly for the accumulation of
water droplets. Generally 4 plates are used and are made of copper.
- Suction fan (7) is placed to the left of plates and is in perpendicular direction to the
length of plates (6) and is used to suck the atmospheric air and exhaust the cooled air to
atmosphere.
25 - The collected water towards water filter (9) placed below the perforated plates (6) and
in gravitational flow
- Reservoir tank (8) is used to store filtered water and is placed directly below water filter
(9) component.
30 Working Details:
9

The method of water extraction from atmospheric air and simultaneously air conditioning the atmosphere is comprised of several stages as mentioned below:-
Stage A-B: - Intake fan (2) sucks the atmospheric air at temperature in range of 25-35 °C and delivers it to the air filters (not shown) which obstruct dirt particles present in the air and further passes filtered air to the inlet of compressor (3) for compression purposes.
Stage B-C: - Low pressure air compressor (3) compresses the inlet atmospheric air and increases both temperature and pressure in the range of state up to 60- 75°C and 1.341-1.5 bar which mainly depends on the speed compressor and ambient condition but this operation occurs below saturation point to avoid phase change of air.
Stage C-D: - Air cooled heat exchanger (4) is employed to extract heat from compressed air and reducing the temperature to a range of 40-50 °C where only slight change in pressure occurs considering practically.
Stage D-E: - Pressurized and cooled air is then expanded with the help of expansion device i.e. expander (5). Both physical properties of air which are temperature and pressure of the compressed and condensed air is dropped down to 1- C and latm pressure after expansion through expander (5). The temperature of the expanded air may decrease below 0°C depending on the degree of compression of atmospheric air and maximum pressure of compressed and cooled atmospheric air as well as mass flow rate.
Stage E-F: - The Series of perforated metallic plates (6) bare employed mainly for the accumulation of water droplets due to the water cohesive property and it has pores in it for allow passage of accumulated water to flow downward with gravitational force.
Stage F-G: - The accumulated water in plate goes below the plates and gets stored in reservoir tank (8) through pores provided in the plates.
Stage G-H: - The collected water in reservoir tank (8) gets filtered by the water filter (9) placed directly below reservoir tank and is ready for drinking purposes.

Stage I-J: - The dry cooled air left out from the outlet of expander (5) gets uniformly mixed with the upcoming air sucked by suction fan (7) in which is placed in perpendicular direction to the flow of outlet cooled air and after mixing, suction fan (7) exhaust the cooled air for Air conditioning the atmosphere.
NOVELTY, INVENTIVE STEP AND INDUSTRIAL APPLICATION NOVELTY
The novelty of the present invention lies in its method or process of generating potable water from atmosphere without requirement of any generic refrigerant gases (working fluid) which changes its phase for air conditioning the environment as well as cooling atmospheric air and converting it to water. The novel feature of invention is that atmospheric air is itself used as refrigerant (working fluid) and is gone through series of refrigerating components (all components mentioned above) for water extraction from atmosphere. The novel feature can also be account that no phase change takes place during the process and it occurs only once at the outlet of expander (5) which is condensation. Therefore, avoiding the need of condenser and high pressure compressor required for phase change thereby saving the lot of energy required for operation and enhancing efficiency. The another novel feature is that it has implemented perforated metallic plates (6) for water droplets accumulation and passage of collected water below water filter through gravitational force which is technical advancement and is still not disclosed by any prior art.
INVENTIVE STEP
The technical advancement implemented in the invention is that it has incorporated atmospheric air as working fluid instead refrigerant (R134a) which passes through various refrigerating components of and it similarly works therefore, reducing the machine operating cost as well as maintenance cost in repairing.
The series of perforated metallic plates (6) implemented in invention are placed in such a way
that after conversion from gases to liquid no pump is required to input water into water reservoir
tank as it goes downward through its gravitational force.
Perforated metallic plates (6) have a strong efficacy for water droplets accumulation and have
uniform pores in it for passage of accumulated water droplets into reservoir tank (8).
The inventor mainly focuses on how to reduce power consumption as well as to increase
performance of entire operation and it is smoothly achieved by avoiding the need of condenser

and high pressure compressor and substituting it with simple air cooled heat exchanger (4) and low pressure compressor (3) respectively.
None of the prior art patents have developed a mechanism in which it uses atmospheric air as working fluid thereby avoiding the need of refrigerant. Moreover, existing technology is not focused on enhancing efficiency or on increasing performance while reducing operating and maintenance cost. All in all, it reflects inventive effort.
INDUSTRIAL APPLICATION
The present invention resolves the demerit of water scarcity prevailing in regions where water scarcity is considered as a main problem and preferably in humid regions where moisture level in atmosphere are abundant. The current invention resolves and avoids the problem of maintenance required in system having refrigerant gas (R134a) which largely effects efficiency and maintenance hardly available in remote areas. Therefore, the current invention has substituted refrigerant gas with atmospheric air. Therefore, reducing maintenance cost as well as increasing performance to large extent thus increasing industrial applicability.
^yy

CLAIM:

An energy efficient machine for atmospheric vapor condensation and air conditioning consisting of:
- An Inlet of the air duct further comprising of intake fan (2) which sucks the moisture air (humid air) from atmosphere;
- Centrifugal compressor (3) to compress the sucked air thereby increasing the pressure and temperature below the saturation pressure (phase change);
- Shell tube heat exchanger (4) employed to extract heat from compressed air and reducing the temperature to nearby surrounding temperature ;
- Expander (5) for expansion of air;
- Series of perforated metallic plates (6) employed for the accumulation of water droplets;
- Suction fan (7) placed to the left of plates and in perpendicular direction to the length of plates (6);
- Water filter (9) placed below the perforated plates (6) and
- Reservoir tank (8) WHEREIN:
Water extraction from atmospheric air and air conditioning of the atmosphere is carried out without using a condenser and high pressure compressor, due to simultaneous working of air cooled heat exchanger (4) and low pressure compressor (3) respectively and Atmospheric air is used as working fluid from which the water is to be extracted.
The energy efficient machine as claimed in claim 1 WHEREIN the method of water extraction from atmospheric air and simultaneously air conditioning the atmosphere is comprised of several stages as mentioned below:
- Stage A-B: - Intake fan (2) sucks the atmospheric air at temperature in range of 25-35 °C
and delivers it to the air filters which obstruct dirt particles present in the air and passes
filtered air to the inlet of compressor (3) for compression purposes;
Stage B-C: - Low pressure air compressor (3) compresses the inlet atmospheric air and increases both temperature and pressure in the range of state up to 60- 75°C and 1.341-1.5 bar;
- Stage C-D: - Air cooled heat exchanger (4) is employed to extract heat from
compressed air and reducing the temperature to a range of 40-50 °C where only slight
change in pressure occurs;

- Stage D-E: - Pressurized and cooled air is then expanded with the help of expander (5) so that temperature and pressure of the compressed and condensed air is dropped down to 10°C - 0°C and latm pressure after expansion;
- Stage E-F: - Water droplets are accumulated in perforated metallic plates (6);
- Stage F-G: - The accumulated water in perforated metallic plates (6) goes below the plates (6) due to downward gravitational force and gets stored in reservoir tank (8);
- Stage G-H: - The collected water in reservoir tank (8) gets filtered by the water filter (9) placed directly below reservoir tank (8);
- Stage I-J: - The dry cooled air left out from the outlet of expander (5) gets uniformly mixed with the upcoming air sucked by suction fan (7) placed in perpendicular direction to the flow of outlet cooled air and
- After mixing, suction fan (7) exhaust the cooled air for Air conditioning of the atmosphere.
The energy efficient machine as claimed in claim 1 WHEREIN the state of working fluid is not changed at any stage throughout the thermodynamic process.
The energy efficient machine as claimed in claim 1 WHEREIN compressed cool air from expander (5) gets cooled down below its dew point temperature (DPT).