EP0167729A1 - Procédé de renouvellement et de conditionnement de l'air intérieur dans la zone d'occupation de grandes salles - Google Patents

Procédé de renouvellement et de conditionnement de l'air intérieur dans la zone d'occupation de grandes salles Download PDF

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Publication number
EP0167729A1
EP0167729A1 EP85104808A EP85104808A EP0167729A1 EP 0167729 A1 EP0167729 A1 EP 0167729A1 EP 85104808 A EP85104808 A EP 85104808A EP 85104808 A EP85104808 A EP 85104808A EP 0167729 A1 EP0167729 A1 EP 0167729A1
Authority
EP
European Patent Office
Prior art keywords
air
hall
temperature
conditioning
jet
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.)
Granted
Application number
EP85104808A
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German (de)
English (en)
Other versions
EP0167729B1 (fr
Inventor
Klaus Roschmann
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.)
Sulzer AG
Original Assignee
Sulzer AG
Gebrueder Sulzer AG
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 Sulzer AG, Gebrueder Sulzer AG filed Critical Sulzer AG
Priority to AT85104808T priority Critical patent/ATE36749T1/de
Publication of EP0167729A1 publication Critical patent/EP0167729A1/fr
Application granted granted Critical
Publication of EP0167729B1 publication Critical patent/EP0167729B1/fr
Expired 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
    • F24F7/00—Ventilation
    • F24F7/007—Ventilation with forced flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/0001—Control or safety arrangements for ventilation
    • 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
    • F24F13/26—Arrangements for air-circulation by means of induction, e.g. by fluid coupling or thermal effect

Definitions

  • the invention relates to a method for renewing and conditioning the room air in the lounge area of halls with heights greater than 5 m, conditioned conditioning air, guided and controlled by a second air jet, flowing through the lounge area of the hall, and a device for carrying out the method.
  • the object of the invention is to develop a ventilation method for large halls with minimum heights of 5 m - such as manufacturing, exhibition or sports halls - for the implementation of which only systems are required which are in the ceiling area of the hall requires as few installations as possible, so that, for example, the incidence of light from skylights or work processes - such as crane travel - are not obstructed if possible.
  • this object is achieved in that air is used as the control jet, the temperature of which corresponds at least approximately to the temperature level in the hall, and further that the conditioning air and the control air above the stay area from at least approximately opposite air outlets as directed jets into the Hall are blown in, and that, finally, at least during the transition from one operating mode to another, the pulse of the control jet, which is formed as the product of volume flow and speed, is changed stepwise or continuously; a device for carrying out the method is in turn characterized by two at least approximately opposite air outlets which are arranged at least seven times the hall height above the floor, one being connected to a source of conditioned compressed air and the other being connected to a compressed air source is acted upon, the air conveys at least approximately the same temperature as the hall air and, furthermore, its pressure potential can be adjusted.
  • the new method can be carried out with the help of air outlets installed on intermediate fittings.
  • the aim is to warm up the warm air as much as possible during operating modes a) and b) by thoroughly mixing the "ceilings "- Use air with the rest of the hall air with the help of the control jet for heating the lounge area.
  • the aim is not to have a vertical temperature gradient over the entire height of the hall.
  • the speed for the control air jet is selected for the heating operation in such a way that it is 1.2 to 1.8 times that in the area of the air outlet for the conditioning air Conditioning air speed is, and that the control air jet is directed and processed so that it covers the hall ceiling at least in the last part of its throw.
  • the injected conditioning air is deflected downward into the lounge area immediately after it enters.
  • the control jet reaching up to the ceiling ensures intensive "mixing" of the warm ceiling air into the mixed air circulation generated for heating the lounge area.
  • the warm ceiling air remains as undisturbed as possible above the air jets directed against each other; this can be achieved if - in the operating modes c) and d) - the jet impulse of the control air for cooling operation is reduced so that the two jets collide and mix in a desired area between the two air outlets, preferably in the middle, with a stratification the hall air and a temperature gradient in the vertical direction is maintained.
  • the compressed air source for the control jet can also be supplied with suitably prepared air from the outside atmosphere or other origin, it is easiest and most economical to use indoor air directly for the control jet; it is therefore expedient if the compressed air source for the air, which is at least similar in temperature to the hall air in terms of temperature, directly draws in and accelerates the hall air.
  • the fan can also be equipped with a variable-speed drive. Finally, especially in the transition period, a change in the described operating modes can be initiated in a simple manner if the temperature of the conditioning air and / or the pulse of the control air jet is controlled by room thermostats located in the lounge area.
  • the floor plan of Hall 1 (Fig. L) is divided into four equal zones 2, which have dimensions of 35 x 2 0 m 2.
  • the height H (Fig. 2) of hall 1 is about 9 m.
  • air outlets 3 and 4 are provided opposite each other at a height of 6 - 6.5 m.
  • a primary or conditioning air jet is blown into each zone from the air outlet 3 by means of a fan 5 (FIG. 2). With this air, which is drawn in as fresh air from the outside atmosphere - possibly via filters (not shown) - passes through a heat exchanger 6 in which it is heated or cooled before it exits into the hall interior.
  • the heat exchanger 6 is connected to a supply line 8 provided with a flow control valve 7 and a return line 9, in which a shut-off device 12 is provided, to a network (not shown) for a heating or cooling medium - in general in both cases appropriately tempered Water - connected.
  • the flow control valve 7 is adjusted by a controller 10, the input signal of which is supplied by a room thermostat 11, which is arranged separately in the lounge area 1A of the people in hall 1 or in each zone 2.
  • the controller 10 outputs a second signal, which reaches a speed controller 13 for the drive motor, not shown, of a second fan 14. Hall air is drawn in directly by this fan 14, the drive speed of which can be set in stages, for example in five stages, and as a control or secondary air jet blown out of the air outlet 4 against the primary air jet from the air outlet 3, as will be described later.
  • the flow distribution shown in FIG. 3 results in the new method.
  • the primary air jet from conditioned air in this case at least heated to the hall temperature, is only relatively short, since the control jet formed from the hall air is blown against the primary air jet at such a speed that it has a higher speed in the area of the air outlet 3 for the conditioning air. for example 1.2 to 1.8 times the speed - than the primary beam has.
  • the supply air which is made up of primary and secondary air, is mainly deflected downwards according to the laws of beam expansion and flows directly through lounge area 1A.
  • the pulse of the control jet is reduced so far, for example by reducing the speed of the drive for the fan 14 - and / or, if appropriate, the pulse of the primary jet is increased accordingly - that the flow diagram sketched in FIG. 4 is produced.
  • the speeds of the two beams are selected so that they meet at least approximately in the middle of Hall 1 or Zone 2. This creates two circulations in the lounge area lA with which cooled primary air, mixed with control or secondary air from the control jet, is transported through the lounge area lA.
  • the reduced widening of the control beam also has the effect that the lounge area 1A is shielded from the warm air collecting on the ceiling, which is drawn off by the exhaust air device 15, without stressing the lounge area 1A.
  • the new process creates a temperature stratification over the height.
  • the room or hall air temperature t in degrees C is plotted horizontally as the abscissa, which is measured by the room thermostat 11 (FIG. 2).
  • the curve curve shown in the lower third k shows the position of the valve 7 as a function of the temperature t when a cooling medium passes through the heat exchanger 6 for cooling the primary air, the lower level z for a closed valve and the level g for a fully open valve 7 applies.
  • the upper third h of diagram 5 embodies the position of valve 7 in heating mode.
  • the speeds for driving the fan 14, which are set at the different room temperatures, are plotted in the central area i. M denotes the maximum speed and n the minimum speed.
  • a setpoint temperature t 1 of 18 ° C is set on the room thermostat 11.
  • the valve 7 on the heat exchanger 6, which is charged with a heating medium is initially fully open.
  • the fan 14 runs at maximum speed m, so that the flow pattern of FIG. 3 is given.
  • the valve 7 is closed linearly proportional to the rising temperature. If the room air temperature continues to rise, the heat generated in hall 1A is sufficient to cover the demand if fan 14 continues to deliver its full output.
  • neither heating nor cooling media for the primary or conditioning air are therefore made available at the maximum speed of the fan 14.
  • the temperature setpoint t 2 is set at 22 ° C.
  • the flow diagram sketched in FIG. 4 results, for example.
  • the conditioning air is cooled in the heat exchanger 6 before it is blown into the hall 1, the valve 7 in the supply line 8 for the coolant flow being proportional to the in the range w between 25 ° C and 27 ° C rising temperatures is opened and is completely open at indoor air temperatures above 27 ° C.
  • valve 7 If the supply of heat when valve 7 is fully open in heating mode - i.e. at hall temperatures below 16 ° C - and the heat dissipation when valve 7 is fully open in cooling mode - ie at hall temperatures above 28 ° C - is insufficient to meet the demand for heat or "cold" off, it is possible to increase the temperature of the heating or cooling medium and / or its flow rates or speeds through the heat exchanger 6.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Conditioning Control Device (AREA)
  • Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
  • Central Air Conditioning (AREA)
  • Duct Arrangements (AREA)
  • Air Bags (AREA)
EP85104808A 1984-07-04 1985-04-20 Procédé de renouvellement et de conditionnement de l'air intérieur dans la zone d'occupation de grandes salles Expired EP0167729B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85104808T ATE36749T1 (de) 1984-07-04 1985-04-20 Verfahren zur erneuerung und konditionierung der raumluft im aufenthaltsbereich von hallen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3218/84 1984-07-04
CH3218/84A CH664003A5 (de) 1984-07-04 1984-07-04 Verfahren zur klimatisierung des aufenthaltbereichs einer halle.

Publications (2)

Publication Number Publication Date
EP0167729A1 true EP0167729A1 (fr) 1986-01-15
EP0167729B1 EP0167729B1 (fr) 1988-08-24

Family

ID=4251202

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85104808A Expired EP0167729B1 (fr) 1984-07-04 1985-04-20 Procédé de renouvellement et de conditionnement de l'air intérieur dans la zone d'occupation de grandes salles

Country Status (6)

Country Link
EP (1) EP0167729B1 (fr)
AT (1) ATE36749T1 (fr)
BR (1) BR8503172A (fr)
CH (1) CH664003A5 (fr)
DE (2) DE3425454A1 (fr)
ES (1) ES8607520A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2731267A1 (fr) * 1995-03-03 1996-09-06 Sarl Tuffigo Dispositif pour augmenter le mouvement de l'air dans les batiments d'elevage
US20160131380A1 (en) * 2014-11-10 2016-05-12 Internal Air Flow Dynamics, Llc Method and System for Eliminating Air Pockets, Eliminating Air Stratification, Minimizing Inconsistent Temperature, and Increasing Internal Air Turns

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2336759B1 (es) * 2009-07-09 2011-03-15 Tecnica En Instalaciones De Fluidos, S.L. Sistema de climatizacion por capas.

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2262243A (en) * 1937-05-03 1941-11-11 Hugh C Lord Air conditioning, method and apparatus
FR1064666A (fr) * 1951-06-25 1954-05-17 Carrier Corp Procédé et installation de conditionnement de l'air dans un batiment
DE1454370A1 (de) * 1963-08-13 1969-02-06 Bahco Ab Heiz- und Belueftungsanlage
FR2076813A5 (fr) * 1970-01-29 1971-10-15 Tunzini
FR2225699A1 (fr) * 1973-04-13 1974-11-08 Svenska Flaektfabriken Ab
FR2250966A1 (en) * 1972-08-22 1975-06-06 Bahco Ventilation Ab Supply air inlet for air conditioned room - discharges two parallel horizontal streams of air at high level
CH580788A5 (fr) * 1972-05-08 1976-10-15 Svenska Flaektfabriken Ab
US4079665A (en) * 1976-07-09 1978-03-21 Stanley Irvin Martin Wall mounted ventilator
EP0085428A1 (fr) * 1982-02-02 1983-08-10 Fläkt Aktiebolag Procédé et appareil pour la ventilation d'espaces

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2262243A (en) * 1937-05-03 1941-11-11 Hugh C Lord Air conditioning, method and apparatus
FR1064666A (fr) * 1951-06-25 1954-05-17 Carrier Corp Procédé et installation de conditionnement de l'air dans un batiment
DE1454370A1 (de) * 1963-08-13 1969-02-06 Bahco Ab Heiz- und Belueftungsanlage
FR2076813A5 (fr) * 1970-01-29 1971-10-15 Tunzini
CH580788A5 (fr) * 1972-05-08 1976-10-15 Svenska Flaektfabriken Ab
FR2250966A1 (en) * 1972-08-22 1975-06-06 Bahco Ventilation Ab Supply air inlet for air conditioned room - discharges two parallel horizontal streams of air at high level
FR2225699A1 (fr) * 1973-04-13 1974-11-08 Svenska Flaektfabriken Ab
US4079665A (en) * 1976-07-09 1978-03-21 Stanley Irvin Martin Wall mounted ventilator
EP0085428A1 (fr) * 1982-02-02 1983-08-10 Fläkt Aktiebolag Procédé et appareil pour la ventilation d'espaces

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
HEATING/PIPING/AIR CONDITIONING, Band 49, Nr. 3, März 1977, Seiten 63-67, R.J. Osborn, Stamford, US; J.A. DAVIS: "The unidirectional flow ventilation system" *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2731267A1 (fr) * 1995-03-03 1996-09-06 Sarl Tuffigo Dispositif pour augmenter le mouvement de l'air dans les batiments d'elevage
US20160131380A1 (en) * 2014-11-10 2016-05-12 Internal Air Flow Dynamics, Llc Method and System for Eliminating Air Pockets, Eliminating Air Stratification, Minimizing Inconsistent Temperature, and Increasing Internal Air Turns
US10473348B2 (en) * 2014-11-10 2019-11-12 Internal Air Flow Dynamics, Llc Method and system for eliminating air stratification via ductless devices

Also Published As

Publication number Publication date
DE3425454A1 (de) 1986-01-16
EP0167729B1 (fr) 1988-08-24
ATE36749T1 (de) 1988-09-15
BR8503172A (pt) 1986-03-25
CH664003A5 (de) 1988-01-29
ES8607520A1 (es) 1986-06-01
DE3564616D1 (en) 1988-09-29
ES543420A0 (es) 1986-06-01

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