US20080121367A1 - Reduction Of Power Consumption - Google Patents

Reduction Of Power Consumption Download PDF

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Publication number
US20080121367A1
US20080121367A1 US11/667,127 US66712705A US2008121367A1 US 20080121367 A1 US20080121367 A1 US 20080121367A1 US 66712705 A US66712705 A US 66712705A US 2008121367 A1 US2008121367 A1 US 2008121367A1
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US
United States
Prior art keywords
cooling
slab
wall
supply air
air
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
US11/667,127
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English (en)
Inventor
Lars-Olof Andersson
Alexander Engstrom
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.)
R L I BYGGDATA AB
Original Assignee
R L I BYGGDATA AB
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 R L I BYGGDATA AB filed Critical R L I BYGGDATA AB
Assigned to R.L.I. BYGGDATA AKTIEBOLAG reassignment R.L.I. BYGGDATA AKTIEBOLAG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ANDERSSON, LARS-OLOF, ENGSTROM, ALEXANDER
Publication of US20080121367A1 publication Critical patent/US20080121367A1/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
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02—Ducting arrangements
    • F24F13/0227—Ducting arrangements using parts of the building, e.g. air ducts inside the floor, walls or ceiling of a building
    • 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
    • F24F5/0017—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 cold storage bodies, e.g. ice
    • 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
    • F24F5/0017—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 cold storage bodies, e.g. ice
    • F24F2005/0025—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 cold storage bodies, e.g. ice using heat exchange fluid storage tanks
    • 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
    • F24F5/0017—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 cold storage bodies, e.g. ice
    • F24F2005/0032—Systems storing energy during the night
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/14—Thermal energy storage

Definitions

  • the present invention relates to a method for temporary reduction of power consumption for cooling of buildings.
  • the reason for over-use of electrical transmission network systems is the lack of accessible power for cooling machines when the offices open in the morning and all of the cooling equipment is turned on almost simultaneously. During the rest of the day the power is then further increased when the outdoor temperature increases and the supply air for ventilation of the offices needs more cooling. To be able to manage the supply during the most critical period, very radical measures may sometimes be demanded.
  • the department of energy in a country may for example demand that the power consumption of a building is reduced by 50% during 5 hours.
  • To increase the cost for the power which is consumed during a certain time of the day may also be a way to decrease the power consumption.
  • a method which has been developed to manage the lack of electrical power for the cooling machines is district cooling, where one in cities near oceans or big lakes can obtain direct cooling, provided that the water in the ocean or the lake is cold enough, by burying in the streets large insulated conduits providing the buildings with necessary cooling water power through heat exchangers, hereby decreasing the power consumed by the cooling machines.
  • Air treatment and cooling plants that are used in this cooling method are mainly in operation only during the office hours. In which way the marine local environment will be affected in the long term is still unclear.
  • the drawbacks with district cooling are several. The investment cost is high and the buildings must be situated close enough together and near a water system in order for it to be practically and economically possible to use district cooling. This limits the use to a great extent.
  • Another method which has been developed to manage the lack of electrical power for the cooling machines is evaporative cooling whereby the ventilation air is cooled by moisturising it with water.
  • both the supply and the return air is moisturised and rotating heat exchangers and driers are also used.
  • the method may in many cases replace mechanical cooling but has its limitation in very hot climates or in hot climates with high air humidity. Air treatment and cooling plants which are used in this cooling method are mainly in operation only during office hours.
  • Another method which has been developed to manage the lack of electrical power for the cooling machines is the use of reservoirs for storage of chilled water coolth or ice coolth whereby the coolth is stored in water or ice reservoirs to eliminate the power peaks during office hours, by way of a cooling machine being operating during non-office hours and cooling the reservoirs and where the stored coolth then is used to minimize the operation of the cooling machine during the hours when the electrical transmission network system is the most loaded.
  • a problem with the cooling method mentioned above is that a separate storage plant is needed to buffer the cooling power which is produced.
  • Another problem with the cooling method mentioned above is that it is costly and complicated.
  • FIG. 1 shows schematically a module-built house in horizontal section through a floor, more precisely the roof slab, with a number of underlying rooms A, B and the corridor C.
  • the rooms A and B are limited by the outer walls 1 , the corridor walls 2 and the room-separating walls 3 .
  • Each room A consists of three modules 4 at 3 ⁇ 1.2 m each (see FIG. 2 ) where in each module three connected channels 5 are run through by supply air from a, in the ceiling of the corridor C situated connector terminal device 6 and supply air channel 7 , which via vertical shafts connects to a fan room situated on the roof.
  • the supply air from the module 4 is then flowing through the supply air terminal device 8 into the room A.
  • the return air from the rooms A goes through a overflow terminal device in the corridor wall, not shown on the drawing, out to the corridor which in this case serves as collecting channel, for further transport to a fan room.
  • the floor slab in room A is used in the same way as the roof slab for distribution of supply air. In this case to a room situated below room A.
  • the modules 4 are laid up on the facade walls.
  • FIG. 3 shows schematically a flow chart for a part of the building, and how those in FIG. 1 and FIG. 2 mentioned modules 4 are connected with the flow chart of the building. Only one module for each room is accounted for as an example.
  • the equipment for cooling and air-change of the building comprises a supply air fan 20 and a return air fan 21 . Further, a heat exchanger 22 , a cooling battery 23 , and four motorised cut-off valves 24 , 25 , 26 and 27 are included.
  • the cooling machine 28 supplies the cooling batteries with, for example cooling water, for cooling of the supply air. Via return air terminals 29 the return air in the corridor C is transported (see FIG. 1 ) back to the fan room.
  • FIG. 4 shows computer simulated cooling powers for the method according to the invention and the conventional method during the time period 00-24.
  • the electrical power for the cooling machine is normally around 50% of the supplied cooling power.
  • the slab as power storage must have enough capacity (mass) and be able to transport necessary air in the hollow channels.
  • the slab surfaces that is the roof and floor surfaces, must be accessible, that is thick carpets, false ceilings, sound absorbing baffles, etc. must be installed in a way so that the heat transfer by convection or by radiation is not hindered to any greater extent.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Building Environments (AREA)
  • Supply And Distribution Of Alternating Current (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
  • Air Conditioning Control Device (AREA)
US11/667,127 2004-11-08 2005-11-07 Reduction Of Power Consumption Abandoned US20080121367A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE0402711-6 2004-11-08
SE0402711A SE527830C2 (sv) 2004-11-08 2004-11-08 Reducering av effektuttag
PCT/SE2005/001670 WO2006049576A1 (en) 2004-11-08 2005-11-07 Reduction of power consumption

Publications (1)

Publication Number Publication Date
US20080121367A1 true US20080121367A1 (en) 2008-05-29

Family

ID=33488181

Family Applications (1)

Application Number Title Priority Date Filing Date
US11/667,127 Abandoned US20080121367A1 (en) 2004-11-08 2005-11-07 Reduction Of Power Consumption

Country Status (7)

Country Link
US (1) US20080121367A1 (zh)
EP (1) EP1828687A4 (zh)
CN (1) CN101091092A (zh)
CA (1) CA2588266A1 (zh)
SA (1) SA05260346B1 (zh)
SE (1) SE527830C2 (zh)
WO (1) WO2006049576A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130184876A1 (en) * 2012-01-12 2013-07-18 International Business Machines Corporation Managing Power Consumption In A User Space
JP2014240751A (ja) * 2014-10-02 2014-12-25 株式会社トヨックス 空気調和システム

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4124062A (en) * 1971-04-20 1978-11-07 Andersson Lars O Method and device for controlling the temperature in a premise
US4393861A (en) * 1979-10-09 1983-07-19 Beard Buddy M Apparatus for the utilization of solar energy
US4562883A (en) * 1981-05-27 1986-01-07 Janeke Charl E Air conditioning method and installation
US5778683A (en) * 1995-11-30 1998-07-14 Johnson Controls Technology Co. Thermal storage system controller and method
US6079481A (en) * 1997-01-23 2000-06-27 Ail Research, Inc Thermal storage system
US20030221436A1 (en) * 2001-06-01 2003-12-04 Yunsheng Xu Recoverable ground source heat pump

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2208922B (en) * 1987-08-22 1992-04-01 Rli Byggdata Ab Temperature control of buildings
WO1990013776A1 (en) * 1989-05-11 1990-11-15 Frederick Bon Jasperson Heating/cooling system and method
GB9407854D0 (en) * 1994-04-20 1994-06-15 Barnard Nicholas I Building structures and methods of controlling the temperature of an interior space defined by such structures
US5826650A (en) * 1997-10-02 1998-10-27 Keller; Leonard J. Devices and methods for utilization of intermittently available electric energy for heating and cooling of habitable structures

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4124062A (en) * 1971-04-20 1978-11-07 Andersson Lars O Method and device for controlling the temperature in a premise
US4393861A (en) * 1979-10-09 1983-07-19 Beard Buddy M Apparatus for the utilization of solar energy
US4562883A (en) * 1981-05-27 1986-01-07 Janeke Charl E Air conditioning method and installation
US5778683A (en) * 1995-11-30 1998-07-14 Johnson Controls Technology Co. Thermal storage system controller and method
US6079481A (en) * 1997-01-23 2000-06-27 Ail Research, Inc Thermal storage system
US20030221436A1 (en) * 2001-06-01 2003-12-04 Yunsheng Xu Recoverable ground source heat pump

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130184876A1 (en) * 2012-01-12 2013-07-18 International Business Machines Corporation Managing Power Consumption In A User Space
JP2014240751A (ja) * 2014-10-02 2014-12-25 株式会社トヨックス 空気調和システム

Also Published As

Publication number Publication date
EP1828687A4 (en) 2010-12-15
CN101091092A (zh) 2007-12-19
SE0402711D0 (sv) 2004-11-08
SE527830C2 (sv) 2006-06-13
WO2006049576A1 (en) 2006-05-11
EP1828687A1 (en) 2007-09-05
SA05260346B1 (ar) 2010-04-04
SE0402711L (sv) 2006-05-09
CA2588266A1 (en) 2006-05-11

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Date Code Title Description
AS Assignment

Owner name: R.L.I. BYGGDATA AKTIEBOLAG, SWEDEN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ANDERSSON, LARS-OLOF;ENGSTROM, ALEXANDER;REEL/FRAME:019292/0326

Effective date: 20070423

STCB Information on status: application discontinuation

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