US20170097167A1 - Air cooling system - Google Patents

Air cooling system Download PDF

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Publication number
US20170097167A1
US20170097167A1 US14/982,436 US201514982436A US2017097167A1 US 20170097167 A1 US20170097167 A1 US 20170097167A1 US 201514982436 A US201514982436 A US 201514982436A US 2017097167 A1 US2017097167 A1 US 2017097167A1
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US
United States
Prior art keywords
cooling system
water
room
air
air cooling
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US14/982,436
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English (en)
Inventor
Mithun SRINIVAS PRABHAKAR
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HCL Technologies Ltd
Original Assignee
HCL Technologies Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by HCL Technologies Ltd filed Critical HCL Technologies Ltd
Assigned to HCL TECHNOLOGIES LIMITED reassignment HCL TECHNOLOGIES LIMITED ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SRINIVAS PRABHAKAR, MITHUN
Publication of US20170097167A1 publication Critical patent/US20170097167A1/en
Abandoned legal-status Critical Current

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Classifications

    • 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
    • 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
    • F24F5/001—Compression cycle type
    • 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 subject matter described herein generally relates to a cooling system, and more particularly to an air cooling system for cooling a room.
  • air conditioning (frequently referred to as ‘A/C’ or ‘AC’) is the process of altering the properties of air, in particular temperature and humidity to conditions more comfortable to humans. Further, the aim of AC is to distribute the conditioned air in an occupied space such as a building or a vehicle to improve thermal comfort and indoor air quality.
  • an air conditioner is a device that lowers the air temperature.
  • air conditioners use a lot of electricity. This creates both financial disadvantages due to high utility bills, and more generalized enviromnental disadvantages caused by power production.
  • One of the main reasons a lower/middle class family living in hot and humid areas limit AC use at home is because of excessive operating costs. In other words paying higher electric bills even though the market value of the air-conditioner is quite affordable.
  • air conditioning contributes indirectly to the release of greenhouse gases and other pollutants. Thus, energy saving is a big need for the current society.
  • the air cooling system includes a primary water cooling system for cooling water based on a vapor compression refrigeration methodology and a secondary cooling system for cooling a room utilizing the cold water.
  • the primary cooling system further includes a liquid line for cooling the water based on heat transfer. Further, during operation, the liquid line is configured to receive a liquid refrigerant for cooling the water.
  • the secondary cooling system further includes a container containing water, a pump connected to the container and an evaporator for cooling ambient air in a room, Furthermore, during operation, the water in the container is cooled due to the liquid refrigerant flowing in the liquid line. Upon cooling, the cold water is pumped by the pump into the evaporator for cooling a room.
  • FIG. 1 illustrates an air cooling system at lower operational cost for cooling a room, in accordance with an embodiment of the present subject matter.
  • the air cooling system may cool the room at a low operation cost.
  • the air cooling system comprises a primary water cooling system and a secondary cooling system.
  • the primary water cooling system may be based on a vapor compression refrigeration methodology.
  • the primary water cooling system includes a liquid line partially submerged or fully submerged in water for cooling the water based on heat transfer.
  • the liquid line may be configured to receive a liquid refrigerant for cooling the water.
  • the secondary cooling system includes a container containing cold water, a pump connected to the container, and an evaporator for cooling ambient air in the room. Further, during operation, the water in the container is cooled due to the liquid refrigerant flowing in the liquid line. Upon cooling, the cold water is pumped by the pump into the evaporator for cooling a room. In one embodiment, a fan is placed next to the evaporator in order to blow the cold air across the room.
  • the air cooling system 100 includes a primary water cooling system 140 for cooling water and a secondary air cooling system 142 for effective cooling of a room minimal consumption of electricity.
  • the air cooling system 100 consumes 1.2 amperes of total power for room cooling the capacity being 1 ton.
  • the primary cooling system 140 may be utilized to cool the water or a water glycol mixture, which may be further utilized to cool the room.
  • the primary water cooling system 140 may cool the water based on a vapor compression refrigeration methodology.
  • the primary water cooling system 140 may cool the water glycol mixture based on a vapor compression refrigeration methodology.
  • the primary water cooling system 140 may cool the water to at least 3-5° C. below room temperature. Vapor-compression refrigeration methodology may be understood as a methodology in which the refrigerant undergoes phase changes.
  • the primary cooling system 140 may comprise a compressor 102 , a condenser 104 configured to receive the refrigerant from the compressor 102 .
  • a first fan 118 -A may be located next to the condenser 104 for blowing air over the condenser 104 to achieve an enhanced heat transfer and rejection of latent heat.
  • the primary cooling system 140 may comprise an expansion valve 106 and a liquid line 108 .
  • coil(s) of liquid line 108 is partially submerged in the water.
  • the liquid line 108 may be manufactured utilizing copper tube.
  • liquid line 108 manufactured in a spiral shape for increasing the surface area, and in turn increasing the rate of heat transfer.
  • the primary cooling system 140 may comprise a primary control system configured to control the primary water cooling system 140 based on the water temperature.
  • the primary control system may switch-off the primary cooling system 140 when the temperature of the water falls below a pre-defined limit.
  • the power consumption may be controlled based on switching off the compressor 102 .
  • the compressor 102 may receive a refrigerant at a low-pressure and gaseous form during operation. Upon receiving, the compressor 102 may compress the refrigerant to a high-pressure and high-temperature gaseous state. Further to the compression, the condenser 104 may receive the refrigerant and the refrigerant may be converted to a liquid refrigerant due to the heat transfer. Subsequently, the expansion valve 106 receives the liquid refrigerant from the condenser 104 and upon receiving the liquid refrigerant the expansion valve 106 expands the liquid refrigerant to lower its temperature. Finally, the liquid line 108 may to receive the liquid refrigerant. Further the liquid refrigerant absorbs the heat from the water thus cooling the water to 3-5° C.
  • the secondary air cooling system 142 for cooling a room utilizing cold water comprises a container 110 containing water, a pump 114 connected to the container 110 , and an evaporator 116 coupled to the pump 114 for cooling ambient air in a room.
  • the pump 114 may be submerged in the container 110 containing water.
  • the container 110 may be buried in a sand filled earthen pot for effective insulation and achieving better efficiency.
  • the container 110 may be an earthen pot for effective insulation and achieving better efficiency.
  • the secondary air cooling system 142 may comprise, a secondary control system configured to control the secondary air cooling system 142 based on the water temperature based on room temperature.
  • the secondary control system may switch-off the primary air cooling system 140 when the temperature of the room or the water in the container 110 falls below a pre-defined limit. In one example, the secondary control system may switch-off the secondary air cooling system 140 when the temperature of the room or the water in the container 100 falls below a pre-defined limit.
  • the water in the container 110 is cooled due to the liquid refrigerant flowing in through the liquid line 108 and heat transfer.
  • the water may be mixed with glycol in order to avoid freezing of water.
  • salt water mixture may be utilized.
  • the cold water is pumped in to the evaporator 116 by the pump 114 .
  • the cold water absorbs the heat from the room, thus cooling the room.
  • a second fan 118 -B may be place next to the evaporator 116 and may be configured to blow air over the evaporator 116 for cooling the room.
  • the secondary control system and the completed configuration of the air cooler system 100 effective cooling of a room at low operational cost may be achieved.
  • Sonic embodiments of the air cooler system enable cooling of a room at lower operational cost.
  • Sonic embodiments of the air cooler system enable in reduction in electricity consumption.
  • Some embodiments of the air cooler system enable in reduction in electricity consumption to 1.2 amps.
  • Some embodiments of the air cooler system enable reduction in the utility bills.
  • Exemplary embodiments discussed above may provide certain advantages. Though not required to practice aspects of the disclosure, these advantages may include an air cooling system at lower operational cost for cooling a room.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Other Air-Conditioning Systems (AREA)
  • Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)
US14/982,436 2015-10-06 2015-12-29 Air cooling system Abandoned US20170097167A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN3212/DEL/2015 2015-10-06
IN3212DE2015 IN2015DE03212A (enrdf_load_stackoverflow) 2015-10-06 2015-10-06

Publications (1)

Publication Number Publication Date
US20170097167A1 true US20170097167A1 (en) 2017-04-06

Family

ID=54397278

Family Applications (1)

Application Number Title Priority Date Filing Date
US14/982,436 Abandoned US20170097167A1 (en) 2015-10-06 2015-12-29 Air cooling system

Country Status (2)

Country Link
US (1) US20170097167A1 (enrdf_load_stackoverflow)
IN (1) IN2015DE03212A (enrdf_load_stackoverflow)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2253940A (en) * 1940-08-27 1941-08-26 Novadel Agene Corp Brew cooling equipment
US4377076A (en) * 1980-12-24 1983-03-22 Electrolux-Sigmund Gmbh Cooling arrangement, particularly for beverages
US4800729A (en) * 1986-08-27 1989-01-31 Hoshizaki Electric Co., Ltd. Thermo-hygrostatic refrigerators
US20120096883A1 (en) * 2009-07-06 2012-04-26 Hamdi Tavsan Climate Simulation System with Cold Accumulation Technique
US20140009655A1 (en) * 2011-03-11 2014-01-09 Fujifilm Corporation Imaging device and storage medium storing an imaging program
US20140096556A1 (en) * 2012-10-10 2014-04-10 Hassan S. Emam Solar air conditioner

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2253940A (en) * 1940-08-27 1941-08-26 Novadel Agene Corp Brew cooling equipment
US4377076A (en) * 1980-12-24 1983-03-22 Electrolux-Sigmund Gmbh Cooling arrangement, particularly for beverages
US4800729A (en) * 1986-08-27 1989-01-31 Hoshizaki Electric Co., Ltd. Thermo-hygrostatic refrigerators
US20120096883A1 (en) * 2009-07-06 2012-04-26 Hamdi Tavsan Climate Simulation System with Cold Accumulation Technique
US20140009655A1 (en) * 2011-03-11 2014-01-09 Fujifilm Corporation Imaging device and storage medium storing an imaging program
US20140096556A1 (en) * 2012-10-10 2014-04-10 Hassan S. Emam Solar air conditioner

Also Published As

Publication number Publication date
IN2015DE03212A (enrdf_load_stackoverflow) 2015-10-23

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Owner name: HCL TECHNOLOGIES LIMITED, INDIA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SRINIVAS PRABHAKAR, MITHUN;REEL/FRAME:037375/0941

Effective date: 20151217

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STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION