Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
  • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
  • F25D31/00—Other cooling or freezing apparatus
  • F25D31/002—Liquid coolers, e.g. beverage cooler
  • F25D31/003—Liquid coolers, e.g. beverage cooler with immersed cooling element
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F24—HEATING; RANGES; VENTILATING
  • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
  • F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
  • F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
  • F24F5/0035—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning using evaporation
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F24—HEATING; RANGES; VENTILATING
  • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
  • F24F6/00—Air-humidification, e.g. cooling by humidification
  • F24F2006/006—Air-humidification, e.g. cooling by humidification with water treatment
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
  • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
  • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
  • Y02B30/54—Free-cooling systems

Definitions

• the present disclosure relates generally to air cooling devices, and more particularly, to an air cooler with an inbuilt compact/mini compressor water air chilling unit which cools water in a storage of the air cooler and thereby enables to provide a cooled air to an outlet, such as a fan or the like.
• An evaporative cooler (also swamp cooler, desert cooler and wet air cooler) is a device that cools air through the evaporation of water. Evaporative cooling differs from typical air conditioning systems, which use vapor-compression or absorption refrigeration cycles. Evaporative cooling works by exploiting water's large enthalpy of vaporization. The temperature of dry air can be dropped significantly through the phase transition of liquid water to water vapor (evaporation). This can cool air using much less energy than refrigeration. In extremely dry climates, evaporative cooling of air has the added benefit of conditioning the air with more moisture for the comfort of building occupants.
• the cooling potential for evaporative cooling is dependent on the wet bulb depression, the difference between dry-bulb temperature and wet-bulb temperature.
• evaporative cooling can reduce energy consumption and total equipment for conditioning as an alternative to compressor-based cooling.
• indirect evaporative cooling can still take advantage of the evaporative cooling process without increasing humidity.
• Passive evaporative cooling strategies offer the same benefits of mechanical evaporative cooling systems without the complexity of equipment and ductwork.
• Evaporative coolers lower the temperature of air using the principle of evaporative cooling, unlike typical air conditioning systems which use vapor-compression refrigeration or absorption refrigerator.
• Evaporative cooling is the conversion of liquid water into vapor using the thermal energy in the air, resulting in a lower air temperature.
• the energy needed to evaporate the water is taken from the air in the form of sensible heat, which affects the temperature of the air, and converted into latent heat, the energy present in the water vapor component of the air, whilst the air remains at a constant enthalpy value.
• This conversion of sensible heat to latent heat is known as an isenthalpic process because it occurs at a constant enthalpy value.
• Evaporative cooling therefore causes a drop in the temperature of air proportional to the sensible heat drop and an increase in humidity proportional to the latent heat gain.
• Evaporative cooling can be visualized using a psychrometric chart by finding the initial air condition and moving along a line of constant enthalpy toward a state of higher humidity.
• a simple example of natural evaporative cooling is perspiration, or sweat, secreted by the body, evaporation of which cools the body.
• the amount of heat transfer depends on the evaporation rate, however for each kilogram of water vaporized 2,257 kJ of energy (about 890 BTU per pound of pure water, at 95 °F (35 °C)) are transferred.
• the evaporation rate depends on the temperature and humidity of the air, which is why sweat accumulates more on humid days, as it does not evaporate fast enough.
• Vapor-compression refrigeration uses evaporative cooling, but the evaporated vapor is within a sealed system, and is then compressed ready to evaporate again, using energy to do so.
• a simple evaporative cooler's water is evaporated into the environment, and not recovered. In an interior space cooling unit, the evaporated water is introduced into the space along with the now-cooled air; in an evaporative tower the evaporated water is carried off in the airflow exhaust.
• Such air coolers are generally built on a tank preferably in square shape with depth to contain and hold water.
• Water pumps are installed to uplift to the water for the said tank with use of small water pumps which thereafter is spread over the three enclosed pores walls filled with water absorbent materials.
• a fan is fitted which pulls the cool air with water droplets from the cooler in the outer direction. It often would be advantageous to maintain internal temperature near or below the external temperature.
• the air supplied by the evaporative cooler is generally
• evaporative coolers require a constant supply of water to wet the pads. Further, water high in mineral content (hard water) will leave mineral deposits on the pads and interior of the cooler. Depending on the type and concentration of minerals, possible safety hazards during the replacement and waste removal of the pads could be present. Bleed-off and refill (purge pump) systems can reduce but not eliminate this problem. Installation of an inline water filter (refrigerator drinking water / ice maker type) will drastically reduce the mineral deposits.
• any mechanical components that can rust or corrode need regular cleaning or replacement due to the environment of high moisture and potentially heavy mineral deposits in areas with hard water.
• evaporative media must be replaced on a regular basis to maintain cooling performance. Wood wool pads are inexpensive but require replacement every few months. Higher-efficiency rigid media is much more expensive but will last for a number of years proportional to the water hardness; in areas with very hard water, rigid media may only last for two years before mineral scale build-up unacceptably degrades performance.
• evaporative coolers In areas with cold winters, evaporative coolers must be drained and winterized to protect the water line and cooler from freeze damage and then de- winterized prior to the cooling season.
• the numbers expressing quantities of ingredients, properties such as concentration, reaction conditions, and so forth, used to describe and claim certain embodiments of the invention are to be understood as being modified in some instances by the term "about.” Accordingly, in some embodiments, the numerical parameters set forth in the written description and attached claims are approximations that can vary depending upon the desired properties sought to be obtained by a particular embodiment. In some embodiments, the numerical parameters should be construed in light of the number of reported significant digits and by applying ordinary rounding techniques. Notwithstanding that the numerical ranges and parameters setting forth the broad scope of some embodiments of the invention are approximations, the numerical values set forth in the specific examples are reported as precisely as practicable. The numerical values presented in some embodiments of the invention may contain certain errors necessarily resulting from the standard deviation found in their respective testing measurements.
• the present disclosure relates generally to cooling devices, and more particularly, to an air cooler with an inbuilt compact/mini compressor water air chilling device which cools water in a storage of the air cooler and thereby enables to provide a cooled air to an outlet or dispenser, such as a fan or the like.
• Embodiment of the present disclosure provides domestic air cooler with an inbuilt compact/mini compressor water chiller.
• An aspect of the present disclosure relates to an air cooler to provide a cooled air to an outlet or dispenser.
• the air cooler includes a cooling tank having water, and a chiller unit positioned within said cooling tank.
• the chiller unit is operable to maintain a water temperature within the cooling tank lower than atmospheric temperature outside the cooling tank.
• the chiller unit comprises a compressor 106, one or more evaporator tubes or condenser 112, a capacitor 110, and a fan with motor 108 to implement a vapor-compression refrigeration cycle, and utilizes one or more refrigerants to achieve a refrigeration effect.
• the one or more refrigerants are selected from any or combination of perfluorocarbons (FCs), hydrofluorocarbons (HFCs) chlorofluorocarbons (CFCs) and hydro chlorofluorocarbons (HCFCs).
• FCs perfluorocarbons
• HFCs hydrofluorocarbons
• CFCs chlorofluorocarbons
• HCFCs hydro chlorofluorocarbons
• the compressor pumps the one or more refrigerants in compressed refrigerant form to the condenser that rejects heat energy from the compressed refrigerant to form cooling water or gas refrigerant.
• the transfer of heat enables the gas to condense into a liquid refrigerant which restricts the flow of liquid refrigerant which causes a drop in pressure, thereby causing the warm refrigerant liquid to change phase from liquid to gas and in doing so absorbs heat from the water within said cooling tank to be cooled due to adiabatic flash evaporation.
• the cooling tank being adapted to connect to a water supply or to store the water.
• the air cooler operates based on water's large enthalpy of vaporization.
• the chiller unit further comprises one or more pipes to circulate one or more refrigerants to achieve a refrigeration effect for cooling the water temperature within the cooling tank.
• the air cooler further includes one or more sensors and a display unit.
• the sensors can be IR sensors to control the temperature using a remote.
• the temperature can be also controlled by knob or physical buttons on the outer body of the air cooler.
• the display can be LED display OR OLED to display the temperature along with other indications
• the air cooler further includes a temperature regulating device adapted to control the temperature of the cool air from the air cooler.
• said air cooling device is characterized in that it delivers cool air with less humidity, low power consumption and less water consumption, preferably 50% less water consumption.
• the proposed air cooler incorporated with the water chiller provides an effective replacement to air conditioners. Also, the proposed air cooler incorporated with the water chiller enables to reduce cost of electricity/power consumption substantially when compared with the conventional air conditioner.
• the proposed air cooler incorporated with the water chiller operates on a technique of water chiller which regulates the provided water at a very lower temperature.
• the proposed air cooler incorporated with the water chiller consumes less electricity/power, enable faster cooling, and provides more humidity as compared to the conventional air conditioner. Further, as compared to the conventional air conditioner, the proposed air cooler are easy to handle and much cost effective. Further, since the proposed air cooler consumes less electricity/power, the proposed air coolers can operate on household inverters easily.
• FIG. 1 illustrates a proposed air cooler, in accordance with an exemplary embodiment of the present disclosure.
• FIG. 2 illustrates an exemplary positon of a proposed chiller unit in the proposed air cooler, in accordance with an exemplary embodiment of the present disclosure.
• FIGs. 3A-3B illustrates various components of the proposed chiller unit, in accordance with an exemplary embodiment of the present disclosure.
• light be included or have a characteristic, that particular component or feature is not required to be included or have the characteristic.
• the present disclosure relates generally to cooling devices, and more particularly, to an air cooler with an inbuilt compact/mini compressor water air chilling device which cools water in a storage of the air cooler and thereby enables to provide a cooled air to an outlet or dispenser, such as a faucet or the like.
• Embodiments of the present disclosure relates to an air cooler installed with an inbuilt small and compact sized water chiller.
• the water chiller is preferably based on a miniature/compact compressor technology. Such technology incorporated into the water chiller enables the air cooler to maintain water temperature lower than the usual temperature at which the existing product lines available in the market performs/operates.
• the proposed water chiller uses a technique to lower the water temperature which ultimately performs a better cooling breeze and cooling effect in the domestic use.
• the air cooler incorporated with the proposed water chiller can be made in different sizes and shapes/models which can be utilized in accordance with the use/requirements of the user making it more user-friendly and accommodable.
• the present invention provides an air cooler incorporated with a mini-compressor (also interchangeably referred to as "chiller” or “water chiller” hereafter).
• a mini-compressor also interchangeably referred to as "chiller” or “water chiller” hereafter.
• the proposed air cooler according to the present disclosure can be described in between an air cooler and air conditioning unit with respect to its usage and usefulness.
• the proposed air cooler delivers cool air with less humidity and low power consumption.
• the proposed air cooler delivers economics value and saving against the existing product.
• the proposed air cooler incorporated with the water chiller operates on cold water for which the temperature is preferably in the range of 5 degree to 15 degree Celsius.
• the proposed air cooler is small, compact, and consumes less power as compared to the conventional air conditioner.
• the proposed air cooler produces less humidity due to cold water circulation as a part of inbuilt process.
• An aspect of the present disclosure relates to an air cooler to provide a cooled air to an outlet or dispenser.
• the air cooler includes a cooling tank having water, and a chiller unit positioned within said cooling tank.
• the chiller unit is operable to maintain a water temperature within the cooling tank lower than atmospheric temperature outside the cooling tank.
• the chiller unit comprises a compressor, one or more evaporator tubes or condenser, a capacitor, and device fan with motor to implement a vapor-compression refrigeration cycle, and utilizes one or more refrigerants to achieve a refrigeration effect.
• the one or more refrigerants are selected from any or combination of perfluorocarbons (FCs), hydrofluorocarbons (HFCs) chlorofluorocarbons (CFCs) and hydro chlorofluorocarbons (HCFCs).
• FCs perfluorocarbons
• HFCs hydrofluorocarbons
• CFCs chlorofluorocarbons
• HCFCs hydro chlorofluorocarbons
• the compressor pumps the one or more refrigerants in compressed refrigerant form to the condenser that rejects heat energy from the compressed refrigerant to form cooling water or gas refrigerant.
• the transfer of heat enables the gas to condense into a liquid refrigerant which restricts the flow of liquid refrigerant which causes a drop in pressure, thereby causing the warm refrigerant liquid to change phase from liquid to gas and in doing so absorbs heat from the water within said cooling tank to be cooled due to adiabatic flash evaporation.
• the cooling tank being adapted to connect to a water supply or to store the water.
• the air cooler operates based on water's large enthalpy of vaporization.
• the chiller unit further comprises one or more pipes to circulate one or more refrigerants to achieve a refrigeration effect for cooling the water temperature within the cooling tank.
• said air cooling device is characterized in that it delivers cool air with less humidity, low power consumption and less water consumption, preferably 50% less water consumption.
• FIG. 1 illustrates a proposed air cooler, in accordance with an exemplary embodiment of the present disclosure. As shown, a proposed air cooler 100 is incorporated with a proposed chiller unit 102.
• FIG. 2 illustrates an exemplary positon of a proposed chiller unit in the proposed air cooler, in accordance with an exemplary embodiment of the present disclosure.
• the proposed chiller unit is proposed to be set in cut-out area of the air cooler.
• the cut-out area is also used for the cross-ventilation and it also protects the compressor for excessive heating.
• the air cooler 100 can be any device for cooling the air inside a building, room, or vehicle.
• Air coolers are used in thermally insulated casings to form refrigerators and are also used in buildings to cool rooms. In buildings they are only required when the building itself is not constructed so that it is able to dissipate enough heat. Methods to construct buildings in such a fashion that additional air coolers are not required are e.g., earth sheltering or specific building design.
• the air cooler 100 can be an evaporative cooler (also swamp cooler, desert cooler and wet air cooler) is a device that cools air through the evaporation of water.
• Evaporative cooling differs from typical air conditioning systems, which use vapor-compression or absorption refrigeration cycles. Evaporative cooling works by exploiting water's large enthalpy of vaporization. The temperature of dry air can be dropped significantly through the phase transition of liquid water to water vapor (evaporation). This can cool air using much less energy than refrigeration. In extremely dry climates, evaporative cooling of air has the added benefit of conditioning the air with more moisture for the comfort of building occupants.
• the cooling potential for evaporative cooling is dependent on the wet bulb depression, the difference between dry-bulb temperature and wet- bulb temperature.
• evaporative cooling can reduce energy consumption and total equipment for conditioning as an alternative to compressor-based cooling.
• indirect evaporative cooling can still take advantage of the evaporative cooling process without increasing humidity.
• Passive evaporative cooling strategies offer the same benefits of mechanical evaporative cooling systems without the complexity of equipment and ductwork.
• air cooler 100 may lower the temperature of air using the principle of evaporative cooling, unlike typical air conditioning systems which use vapor-compression refrigeration or absorption refrigerator.
• Evaporative cooling is the conversion of liquid water into vapor using the thermal energy in the air, resulting in a lower air temperature.
• the energy needed to evaporate the water is taken from the air in the form of sensible heat, which affects the temperature of the air, and converted into latent heat, the energy present in the water vapor component of the air, whilst the air remains at a constant enthalpy value.
• This conversion of sensible heat to latent heat is known as an isenthalpic process because it occurs at a constant enthalpy value.
• Evaporative cooling therefore causes a drop in the temperature of air proportional to the sensible heat drop and an increase in humidity proportional to the latent heat gain.
• Evaporative cooling can be visualized using a psychrometric chart by finding the initial air condition and moving along a line of constant enthalpy toward a state of higher humidity.
• the chiller unit 102 is a machine that removes heat from a liquid via a vapor-compression or absorption refrigeration cycle. This liquid can then be circulated through a heat exchanger to cool equipment, or another process stream (such as air or process water). As a necessary by product, refrigeration creates waste heat that must be exhausted to ambience, or for greater efficiency, recovered for heating purpose.
• the chilled water produced by the chiller unit is the chilled water produced by the chiller unit
• Water chillers can be water-cooled, air-cooled, or evaporative cooled. Water-cooled systems can provide efficiency and environmental impact advantages over air- cooled systems
• the chiller unit 102 can operate based on vapor-compression chiller technology.
• vapor compression chillers there can be four basic types of compressors used in vapor compression chillers: Reciprocating compression, scroll compression, screw-driven compression, and centrifugal compression are all mechanical machines that can be powered by electric motors, steam, or gas turbines. They produce their cooling effect via the reverse-Rankine cycle, also known as vapor-compression. With evaporative cooling heat rejection, their coefficients of performance (COPs) are very high; typically 4.0 or more.
• COPs coefficients of performance
• the current vapor-compression chiller technology is based on the "reverse-Rankine" cycle known as vapor-compression.
• refrigeration compressors are essentially a pump for refrigerant gas.
• the capacity of the compressor, and hence the chiller cooling capacity, is measured in kilowatts input (kW), Horse power input (HP), or volumetric flow (m3/h, ft3/h).
• the mechanism for compressing refrigerant gas differs between compressors, and each has its own application.
• Common refrigeration compressors include reciprocating, scroll, screw, or centrifugal. These can be powered by electric motors, steam turbines, or gas turbines.
• Compressors can have an integrated motor from a specific manufacturer, or be open drive- allowing the connection to another type of mechanical connection. Compressors can also be either Hermetic (welded closed) or semi hermetic (bolted together).
• Condensers can be air-cooled, water-cooled, or evaporative.
• the condenser is a heat exchanger which allows heat to migrate from the refrigerant gas to either water or air.
• Air cooled condenser are manufactured from copper tubes (for the refrigerant flow) and aluminum fins (for the air flow). Each condenser has a different material cost and they vary in terms of efficiency. With evaporative cooling condensers, their coefficients -of- performance (COPs) are very high; typically 4.0 or more.
• the expansion device or refrigerant metering device restricts the flow of the liquid refrigerant causing a pressure drop that vaporizes some of the refrigerant; this vaporization absorbs heat from nearby liquid refrigerant.
• the RMD is located immediately prior to the evaporator so that the cold gas in the evaporator tubes can absorb heat from the water in the evaporator. There is a sensor for the RMD on the evaporator outlet side which allows the RMD to regulate the refrigerant flow based on the chiller design requirement.
• Evaporators can be plate type or shell and tube type.
• the evaporator is a heat exchanger which allows the heat energy to migrate from the water stream into the refrigerant gas. During the state change of the remaining liquid to gas, the refrigerant can absorb large amounts of heat without changing temperature.
• FIGs. 3A-3B illustrates various components of the proposed chiller unit, in accordance with an exemplary embodiment of the present disclosure.
• the chiller unit 102 can include a compressor
• the chiller unit 102 typically utilizes HCFC or CFC refrigerants to achieve a refrigeration effect.
• Compressor 106 is the driving force in chiller unit 102 and act as a pump for the refrigerant.
• Compressed refrigerant gas is sent from the compressor 106 to an evaporator tubes or condensorl l2 unit that rejects the heat energy from the refrigerant to cooling water or air outside of the chiller unit 102.
• the transfer of heat allows the refrigerant gas to condense into a liquid which is then sent to a metering device (not shown).
• the metering device (not shown) restricts the flow of liquid refrigerant which causes a drop in pressure.
• the drop in pressure causes the warm refrigerant liquid to change phase from liquid to gas and in doing so absorbs heat from the water to be cooled due to adiabatic flash evaporation.
• the metering device (not shown) is positioned so that the expanding refrigerant gas is contained within the evaporator tubes or condenser 112, transferring the heat energy from the water to be cooled into the refrigerant gas.
• the warm refrigerant gas is then sent back to the compressor to start the cycle over again and the newly chilled water in the separate loop can now be used for cooling.
• the pipes 104-1 and 104-2 which may be merged in the water inside the cooling tank.
• the cooled air from the chiller unit 102 may be passed to the water using at least one of these pipes say via. 104-1, and the warm air from cooling tank is passed to the chiller unit 102 through at least one of these pipes, say via. 104-2.
• the liquid ammonia makes its way to the evaporator tubes or condenser 112 where it mixes with refrigerant and evaporates, producing cool temperatures inside the cooling tank 100.
• Coupled to is intended to include both direct coupling (in which two elements that are coupled to each other or in contact each other) and indirect coupling (in which at least one additional element is located between the two elements). Therefore, the terms “coupled to” and “coupled with” are used synonymously. Within the context of this document terms “coupled to” and “coupled with” are also used euphemistically to mean “communicatively coupled with” over a network, where two or more devices are able to exchange data with each other over the network, possibly via one or more intermediary device.

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• 2018
  • 2018-02-01 CN CN201880004977.7A patent/CN110249181A/zh active Pending
  • 2018-02-01 WO PCT/IB2018/050619 patent/WO2019025873A1/en active Application Filing

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