NO152311B - PROCEDURE FOR SETTING THE RELATIONSHIP BETWEEN THE COMPENSATION AIR FLOW AND THE EXHAUST AIR FLOW IN A HEATING AIR SYSTEM - Google Patents

PROCEDURE FOR SETTING THE RELATIONSHIP BETWEEN THE COMPENSATION AIR FLOW AND THE EXHAUST AIR FLOW IN A HEATING AIR SYSTEM Download PDF

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Publication number
NO152311B
NO152311B NO813795A NO813795A NO152311B NO 152311 B NO152311 B NO 152311B NO 813795 A NO813795 A NO 813795A NO 813795 A NO813795 A NO 813795A NO 152311 B NO152311 B NO 152311B
Authority
NO
Norway
Prior art keywords
air flow
setting
compensation
ratio
exhaust air
Prior art date
Application number
NO813795A
Other languages
Norwegian (no)
Other versions
NO152311C (en
NO813795L (en
Inventor
Markku Kari
Original Assignee
Rakennusvalmiste Oy
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 Rakennusvalmiste Oy filed Critical Rakennusvalmiste Oy
Publication of NO813795L publication Critical patent/NO813795L/en
Publication of NO152311B publication Critical patent/NO152311B/en
Publication of NO152311C publication Critical patent/NO152311C/en

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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
    • F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
    • F24F12/001—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
    • 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]
    • Y02B30/56—Heat recovery units

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ventilation (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Air Conditioning Control Device (AREA)
  • Regulation And Control Of Combustion (AREA)

Description

Fremgangsmåte for innstilling av forholdet mellom kompensasjonsluftstrømmen og utblåsingsluftstrømmen i et varmluftsystem. Procedure for setting the ratio between the compensation air flow and the exhaust air flow in a hot air system.

Foreliggende oppfinnelse omhandler en fremgangsmåte ifølge kravenes innledning. The present invention relates to a method according to the preamble of the claims.

Ved varmluftsystemer søker man å oppnå det forhold at det i en bygning strømmer inn like mye kompensasjonsluft som det strømmer utblåsningsluft ut av bygningen. Man har forsøkt å nå dette mål ved å måle den gjennom varmeopptaksanordningen strømmende utgangsluftstrøm og kompensjonssluft-strøm, og etter behov å opprette en nødvendig balanse ved hjelp av reguleringsspjeld. Siden målingen må utføres ved hjelp av pitotrør, er denne fremgangsmåte meget besværlig, bl.a. fordi måleapparatene ikke alltid fungerer. With warm air systems, the aim is to achieve the condition that as much compensation air flows into a building as exhaust air flows out of the building. Attempts have been made to achieve this goal by measuring the output airflow and compensation airflow flowing through the heat absorption device, and if necessary to create a necessary balance by means of a control damper. Since the measurement must be carried out using a pitot tube, this method is very difficult, i.a. because the measuring devices do not always work.

Hensikten med den foreliggende oppfinnelse er å eliminere ulempene ved de kjente fremgangsmåter, og å frem-bringe en helt ny fremgangsmåte for innstilling av forholdet mellom kompensasjonsluftstrømmen og utblåsingsluftstrømmen. The purpose of the present invention is to eliminate the disadvantages of the known methods, and to produce a completely new method for setting the ratio between the compensation air flow and the exhaust air flow.

Oppfinnelsen er basert på den idé at når temperaturforandringen hos begge luftstrømmer etter strømning gjennom varmeopptaksanordningen er like stor, er også luftstrømmene like store. Således får man et meget pålitelig bilde av luftstrømmenes forhold til hverandre ved å måle relevante temperaturforskjeller og sammenligne disse. Riktignok oppnås ikke å fastsette luftstrømmenes absolutte nivå, noe som heller ikke er påkrevet i foreliggende situasjon. The invention is based on the idea that when the temperature change in both air streams after flowing through the heat absorption device is the same, the air flows are also the same. Thus, you get a very reliable picture of the air currents' relationship to each other by measuring relevant temperature differences and comparing these. Admittedly, it is not possible to determine the absolute level of the air flows, which is also not required in the present situation.

Nærmere bestemt kjennetegnes fremgangsmåten ifølge foreliggende oppfinnelse ved det som er angitt i kravenes karak-teriserende deler. More specifically, the method according to the present invention is characterized by what is indicated in the characterizing parts of the claims.

Gjennom oppfinnelsen oppnås betydelige fordeler. Således tilveiebringes de ønskede relative verdier auto-matisk, eksempelvis ved anvendelse av en dator. Når oppfinnelsen benyttes, er det ikke påkrevd å måle luftstrøm-mene. Dessuten blir hele måleprosessen og også innstillings-arbeidet enklere. Significant advantages are achieved through the invention. Thus, the desired relative values are provided automatically, for example by using a computer. When the invention is used, it is not required to measure the air flows. In addition, the entire measurement process and also the setting work become easier.

Fremgangsmåten ifølge oppfinnelsen beskrives i det følgende ved et utførelseseksempel vist på tegningen som skjematisk viser en innretning som anvendes for benyttelse The method according to the invention is described in the following by an embodiment shown in the drawing which schematically shows a device that is used for use

av fremgangsmåten ifølge oppfinnelsen. of the method according to the invention.

Gjennom varmeopptaksanordningen 1 strømmer på den ene side en kompensasjonsluftstrøm V 1 ved påvirkning av en vifte 2 drevet av motoren 3. På tilsvarende måte strømmer en utblåsningsluftstrøm gjennom varmeopptaksanordningen 1 ved påvirkning av en vifte 4 drevet av motoren 5. Ifølge oppfinnelsen måles nå utgangstemperaturen T2 og inngangstemperaturen T. for den kompensasjonsluft V. som går gjennom varmeopptaksanordningen 1. Deretter utregnes disse temperaturers differanse T2 - . På samme måte måles inngangstemperaturen T3 og utgangstemperaturen for den utblåsningsluft som går gjennom vannopptaksanordningen 1, hvoretter disse temperaturers differanse T, - T. beregnes. Siden beregnes forholdet mellom differansene T2 - og Through the heat absorption device 1, on the one hand, a compensatory airflow V 1 flows under the influence of a fan 2 driven by the motor 3. In a similar way, an exhaust air flow flows through the heat absorption device 1 under the influence of a fan 4 driven by the motor 5. According to the invention, the output temperature T2 is now measured and the inlet temperature T. for the compensation air V. which passes through the heat absorption device 1. The difference of these temperatures T2 - is then calculated. In the same way, the inlet temperature T3 and the outlet temperature of the exhaust air passing through the water absorption device 1 are measured, after which the difference of these temperatures T, - T. is calculated. The ratio between the differences T2 - and is then calculated

T3 - T4, dvs. (<T>1<-> T2)/(T3 - <T>4) som samtidig representerer forholdet mellom kompensasjonsluftstrømmen og utblås-ningsluf tstrømmen V2 eller en funksjon derav. T3 - T4, i.e. (<T>1<-> T2)/(T3 - <T>4) which simultaneously represents the ratio between the compensation air flow and the exhaust air flow V2 or a function thereof.

Således er Thus is

TemperaturmålingsresultateneT1 ...T4 mates inn i en dator The temperature measurement results T1 ...T4 are fed into a computer

7, som beregner det ovenfor nevnte forhold, på hvilket grunnlag innstillingen kan utføres manuelt eller av datoren 7. 7, which calculates the above-mentioned ratio, on the basis of which the setting can be carried out manually or by the computer 7.

I eksemplet utføres innstillingen via en koblings-motstand 6 koblet til hver viftes 2, 4 motor 3, 5. In the example, the setting is carried out via a switching resistor 6 connected to each fan's 2, 4 motor 3, 5.

Claims (5)

1. Fremgangsmåte for innstilling av forholdet mellom kompensasjonsluftstrømmen (V^) og utblåsningsluftstrømmen (V2) i et varmluftsystem (1-5), karakterisert ved å måle utgangstemperaturen (T2) og inngangstemperaturen (T^) for den kompensasjonsluft som strømmer gjennom en varmeopptaksanordning (1) og utregne deres differanse (T2 - Tj), å måle inngangstemperaturen (T3) og utgangstemperaturen (T4) for den utblåsningsluft (V2) som strømmer gjennom opp-taksanordningen (1) og utregne deres differanse (T3 - T4), at forholdet mellom nevnte differanser (T2 - T^) og (T3 - T4) beregnes, hvilket samtidig representerer forholdet mellom kompensasjonsluftstrømmen { Vi) og utblåsningsluftstrømmen (V2) eller en funksjon derav, og at det på grunnlag av de beregnede forhold f.eks. periodisk utføres en innstilling av motorens (3, 5) ytelse til viften (2, 4) for hver luftstrøm (Vi, V2).1. Procedure for setting the ratio between the compensation air flow (V^) and the exhaust air flow (V2) in a hot air system (1-5), characterized by measuring the outlet temperature (T2) and the inlet temperature (T^) of the compensation air that flows through a heat absorption device ( 1) and calculate their difference (T2 - Tj), to measure the inlet temperature (T3) and outlet temperature (T4) of the exhaust air (V2) flowing through the recording device (1) and calculate their difference (T3 - T4), that the ratio between said differences (T2 - T^) and (T3 - T4) is calculated, which at the same time represents the ratio between the compensation air flow {Vi) and the exhaust air flow (V2) or a function thereof, and that on the basis of the calculated ratios e.g. . periodically, a setting of the motor (3, 5) performance of the fan (2, 4) is performed for each air flow (Vi, V2). 2. Fremgangsmåte ifølge krav 1, karakterisert ved å mate måleresultatene (T-^, T2, T3, T4) inn i en datamaskin (7), som beregner forholdet mellom differansene (T2 - T^) og (T3 - T4), på grunnlag av hvilket innstillingen utføres.2. Method according to claim 1, characterized by feeding the measurement results (T-^, T2, T3, T4) into a computer (7), which calculates the ratio between the differences (T2 - T^) and (T3 - T4), on basis on which the setting is performed. 3. Fremgangsmåte ifølge krav 2, karakterisert ved å utføre innstillingen manuelt.3. Method according to claim 2, characterized by performing the setting manually. 4. Fremgangsmåte ifølge krav 2, karakterisert ved at innstillingen utføres av en datamaskin (7) .4. Method according to claim 2, characterized in that the setting is carried out by a computer (7). 5. Fremgangsmåte ifølge krav 1, karakterisert ved at innstillingen utføres via en koblingsmot-stand (6) koblet til motoren (5) for i det minste en av vif-tene (4) .5. Method according to claim 1, characterized in that the setting is carried out via a switching resistor (6) connected to the motor (5) for at least one of the fans (4).
NO813795A 1980-11-11 1981-11-10 PROCEDURE FOR SETTING THE RELATIONSHIP BETWEEN THE COMPENSATION AIR FLOW AND THE EXHAUST AIR FLOW IN A HEATING AIR SYSTEM NO152311C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI803514A FI61563B (en) 1980-11-11 1980-11-11 FOERFARANDE FOER INSTAELLNING AV FOERHAOLLANDET MELLAN KOMPENSATIONSLUFTSTROEMMEN OCH UTBLAOSNINGSLUFTSTROEMMEN I ETT LUFTVAERMESYSTEM

Publications (3)

Publication Number Publication Date
NO813795L NO813795L (en) 1982-05-12
NO152311B true NO152311B (en) 1985-05-28
NO152311C NO152311C (en) 1985-09-04

Family

ID=8513908

Family Applications (1)

Application Number Title Priority Date Filing Date
NO813795A NO152311C (en) 1980-11-11 1981-11-10 PROCEDURE FOR SETTING THE RELATIONSHIP BETWEEN THE COMPENSATION AIR FLOW AND THE EXHAUST AIR FLOW IN A HEATING AIR SYSTEM

Country Status (4)

Country Link
DE (1) DE3144276A1 (en)
FI (1) FI61563B (en)
NO (1) NO152311C (en)
SE (1) SE8106588L (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3224635A1 (en) * 1981-10-23 1983-05-05 Mitsubishi Denki K.K., Tokyo VENTILATION DEVICE
JPS5876318A (en) * 1981-10-30 1983-05-09 Mitsubishi Heavy Ind Ltd Control method and device of airflow of air conditioner
FI83134C (en) * 1987-12-18 1991-05-27 Ilmaterae Oy FOERFARANDE OCH ANORDNING FOER REGLERING AV LUFTSTROEMMAR OCH TRYCK I LUFTKONDITIONERING.
JP2503119Y2 (en) * 1989-08-22 1996-06-26 サンデン株式会社 Heat recovery type ventilation device
US5431215A (en) * 1993-12-30 1995-07-11 Honeywell Inc. Pressure switch for energy recovery ventilator
DE4404477A1 (en) * 1994-02-13 1995-08-17 Gerd Kuemmel Combined ventilating, heating and cooling of building

Also Published As

Publication number Publication date
DE3144276A1 (en) 1982-09-09
FI61563B (en) 1982-04-30
NO152311C (en) 1985-09-04
NO813795L (en) 1982-05-12
SE8106588L (en) 1982-05-12

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