GB2317948A - Heat reclaim luminaires - Google Patents

Heat reclaim luminaires Download PDF

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Publication number
GB2317948A
GB2317948A GB9712683A GB9712683A GB2317948A GB 2317948 A GB2317948 A GB 2317948A GB 9712683 A GB9712683 A GB 9712683A GB 9712683 A GB9712683 A GB 9712683A GB 2317948 A GB2317948 A GB 2317948A
Authority
GB
United Kingdom
Prior art keywords
heat
heat reclaim
luminaires
lighting
reclaim
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.)
Withdrawn
Application number
GB9712683A
Other versions
GB9712683D0 (en
Inventor
Paul Bennett
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB9712683A priority Critical patent/GB2317948A/en
Publication of GB9712683D0 publication Critical patent/GB9712683D0/en
Publication of GB2317948A publication Critical patent/GB2317948A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/56—Cooling arrangements using liquid coolants
    • F21V29/58—Cooling arrangements using liquid coolants characterised by the coolants
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/60—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
    • F21V33/0088—Ventilating systems
    • F21V33/0092—Ventilating systems with heating or cooling devices
    • 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
    • F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
    • F24F13/078—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser combined with lighting fixtures
    • 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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems

Abstract

The invention is based upon the idea of separating and re-using the heat produced as a by-product of lighting. Heat reclaim luminaires consist of five essential components; heat reclaim unit(1), light source generator(2), fibre optic light distributing leads(3), light output units(4), and heat reclaim ducts(5). Air or water may be used as a cooling medium and the reclaimed heat can be used for air conditioning, water heating or any other purpose.

Description

" HEAT RECLAIM LUMINAIRES " SPECIFICATION This invention relates to heat reclaim luminaires.
Traditionally electrically powered luminaires are used in buildings for the purpose of illuminating internal environments, unfortunately there is an unwanted secondary Bi product of electric lighting being heat.
Luminaires are often used in buildings in large numbers and generate significant quantities of uncontrolled heat causing internal environments to gain in temperature. This undesired heating effect is unwanted in summer months and constitutes a heat load to which electrically powered air conditioning is employed to cool the space.
It is apparent that in air conditioned buildings clectricity is wasted since it is firstly consumed by luminaires to illuminate and heat internal environments and then consumed to cool the space via air conditioning. The process is extremely energy inefficient with high capital and energy cost wastage. (In non air conditioned buildings the heat generated by luminaires is simply unused and wasted in summer months, and in winter months uncontrolled) The objective of the invention "Heat Reclaim Luminaires" is to separate the fonder unidirectional light and heat energys from luminaires control these energies to become Bi directional i.e. to illuminate in one direction and to provide heat energy for another.
According to the present invention the heat reclaim luminaire consists of a duct connected heat reclaim unit containing fibre optic light source generator with connecting fibre optic looms terminating at light output units.
See figure 1, figure 2 and figure 3 for details.
The fibre optic generator produces light energy to the light output units via fibre optic looms to illuminate the desired environment as detailed in figure 4. The light output is a cold light since only light energy is transmitted along the optical fibres. The light output units can be fashioned to any desired format i.e. modular, recessed, surface, spot, linear, uplight etc.
The heat generated by the electric light source is contained in the heat reclaim unit. By air flow techniques and the location of air fins around the light source generator the heat output can be controlled and collected. The heat reclaim unit is connected to a forced air ducting system so that heat gains from other heat reclaim units can be collected.
ze collected heat is then transfered to the required destination and can be utilised in winter months to provide space heating and in summer months to be diverted from spaces to reduce air conditioning loads (or even negate the requirements for air conditioning at all) The diverted heat energy can then be used in the following ways:- 1. Rejected to the external environment.
2. Transfered to internal areas requiring space heating.
3. Transfered into thermodynamic processes such as to heat water for domestic hot water services.
4. Transfered to any other application that could benefit from a primary hot air energy source. E.g air to air reverse cvcle heat pump cycles etc.

Claims (5)

  1. "HEAT RECLAIM LUMINAIRES"
    CLAIMS 1. Heat reclaim luminaires can be used either separately or collectively in any Building Services/HVAC conventional system and controlledlutilised for any energy recycling application.
  2. 2. Heat reclaim luminaires as claimed in claim 1 can utilise air or water or any other desired heat transfer medium to transfer heat from one location to another.
  3. 3. Heat reclaim luminaires as claimed in claim 1 or claim 2 are not limited to applications in buildings but to any lighting application.
  4. 4. Heat reclaim luminaires as claimed in claim 1, claim 2 and claim 3 can form a range of units to suit the number of light outputs required i.e can have 1, 2, 3, 4 etc number of light source generators fitted integral.
  5. 5. Heat reclaim luminaires as claimed in claim 1, claim 2, claim 3 and claim 4 may be prewired with one external isolating unit for ease of wiring, installation and control.
    AMENDMENTS TO THE CLAIMS HAVE BEEN FILED AS FOLLOWS: A localised modular lighting scheme incorporating local heat reclaim from electric lighting.
    The Invention " Heat Reclaim Luminaires" is designed for integration into HVAC systems where local environmental control is required in terms of heat reclaim with local lighting control (see figure 4). The Invention is a modular system and pre-selected for local environments and is therefore suitable for to pre-fabrication in manufacture and installation (see figure 1).
    The invention consists of five essential components (see figure 1).
    (1) The Heat Reclaim Unit (2) The light Source Generator(s) (3) Fibre Optic Lighting Distribution Leads (4) Light Output Units (5) Heat Reclaim Ducts.
    The heat reclaim unit is a duct connected, thermally insulated unit fitted with an external isolator and maintenance access hatch. The heat reclaim unit internally houses pre-wired light source generator(s). There may be one, two, three, four or more light source generators dependant upon the luminous output required for a local space. The light source generator (see figure 2) contains a high efficiency lamp, control gear, lenses and mirrors inside a removable housing. The housing has specially designed air vents to maximise heat transfer from the lamp and control gear to the passing air stream.
    The luminous output of the lamp is directed towards a low loss fibre optic distribution lead. This lead transmits luminous flux from the light source generator/heat reclaim unit to numerous light output units (see figure 1). The utilisation of a low loss fibre optic distribution leads ensures that heat energy produced by the electric lighting source remains within the heat reclaim unit and is not transmitted into the space which is being illuminated.
    The light output units take the form of standard luminaires and may be of the modular recessed/ surface/ linear/ spot/ uplight/ wall light types. The light output unit is similar to traditional luminaire bodies in appearance but differ in that there are obviously no lamps and control equipment inside.
    The main fibre optic distribution lead splits into numerous smaller leads and terminates at the various light output units. A combination of mirrors and lenses directs the luminous flux into the desired illumination direction.
    Localised light switching of the light output is afforded by simple on/off/dimmed or daylight control to the individual light output units.
    The Heat Reclaim Unit is located in a ceiling void and is connected via a network of forced air ducting to collect or transmit the heat gain from local units to a central position. At this central position the heat can be utilised, distributed to other zones in need of heat energy or rejected.
    "Heat reclaim Luminaires"are therefore designed to provide a range units. In lighting/heat reclaim design it is desired that one heat reclaim unit provides lighting for a single internal space For ease of control. Multiples of the heat reclaim units are therefore used in very large open spaces. This design requirement reduces electric wiring and heat reclaim ducting. A proposed range of the heat reclaim units are as follows: One heat reclaim unit can house: 1 generator serving 4-6 light output units 2 generators serving 8-12 light output units 3 generators serving 12-18 light output units 4 generators serving 16-24 light output units A localised modular lighting scheme incorporating local heat reclaim from electric lighting as claimed in claims 1 which incorporates a water heat transfer medium opposed to an air system for the recovery of heat.
    A localised modular lighting scheme incorporating heat reclaim from electric lighting as claimed in claims 1 or 2 which can be modified to any lighting application.
    A localised modular lighting scheme incorporating local heat reclaim from electric lighting as claimed in claims 1 or 2 or 3 which includes a heat/light splitting filter.
GB9712683A 1997-06-18 1997-06-18 Heat reclaim luminaires Withdrawn GB2317948A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9712683A GB2317948A (en) 1997-06-18 1997-06-18 Heat reclaim luminaires

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9712683A GB2317948A (en) 1997-06-18 1997-06-18 Heat reclaim luminaires

Publications (2)

Publication Number Publication Date
GB9712683D0 GB9712683D0 (en) 1997-08-20
GB2317948A true GB2317948A (en) 1998-04-08

Family

ID=10814400

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9712683A Withdrawn GB2317948A (en) 1997-06-18 1997-06-18 Heat reclaim luminaires

Country Status (1)

Country Link
GB (1) GB2317948A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102042512A (en) * 2009-10-12 2011-05-04 富准精密工业(深圳)有限公司 Lamp

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4076073A (en) * 1975-02-18 1978-02-28 Matsushita Electric Industrial Co., Ltd. Combination re-conditioning unit and illuminating appliance for use with central air conditioning system
US4081023A (en) * 1976-11-26 1978-03-28 Grumman Aerospace Corporation Heat pipes to use heat from light fixtures
US4704660A (en) * 1985-03-27 1987-11-03 Lumenyte Corporation High-intensity light source for a fiber optics illumination system
US4825341A (en) * 1987-11-17 1989-04-25 Fiberstars, Inc. Cooled lighting apparatus and method
EP0388128A2 (en) * 1989-03-13 1990-09-19 Less Lighting Limited Apparatus for illuminating an environment which operates below normal ambient temperature
WO1991011743A1 (en) * 1990-01-26 1991-08-08 Olympus Corporation Light source receptacle for fiberoptic illumination
US5371660A (en) * 1992-01-31 1994-12-06 Massachusetts Institute Of Technology Illumination system and method
GB2311849A (en) * 1996-04-04 1997-10-08 Colin William Green A combined lighting and air-conditioning unit

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4076073A (en) * 1975-02-18 1978-02-28 Matsushita Electric Industrial Co., Ltd. Combination re-conditioning unit and illuminating appliance for use with central air conditioning system
US4081023A (en) * 1976-11-26 1978-03-28 Grumman Aerospace Corporation Heat pipes to use heat from light fixtures
US4704660A (en) * 1985-03-27 1987-11-03 Lumenyte Corporation High-intensity light source for a fiber optics illumination system
US4825341A (en) * 1987-11-17 1989-04-25 Fiberstars, Inc. Cooled lighting apparatus and method
EP0388128A2 (en) * 1989-03-13 1990-09-19 Less Lighting Limited Apparatus for illuminating an environment which operates below normal ambient temperature
WO1991011743A1 (en) * 1990-01-26 1991-08-08 Olympus Corporation Light source receptacle for fiberoptic illumination
US5371660A (en) * 1992-01-31 1994-12-06 Massachusetts Institute Of Technology Illumination system and method
GB2311849A (en) * 1996-04-04 1997-10-08 Colin William Green A combined lighting and air-conditioning unit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102042512A (en) * 2009-10-12 2011-05-04 富准精密工业(深圳)有限公司 Lamp

Also Published As

Publication number Publication date
GB9712683D0 (en) 1997-08-20

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WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)