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DE4309946A1 - Process for controlling inert systems for heating and cooling buildings - Google Patents

Process for controlling inert systems for heating and cooling buildings

Info

Publication number
DE4309946A1
DE4309946A1 DE19934309946 DE4309946A DE4309946A1 DE 4309946 A1 DE4309946 A1 DE 4309946A1 DE 19934309946 DE19934309946 DE 19934309946 DE 4309946 A DE4309946 A DE 4309946A DE 4309946 A1 DE4309946 A1 DE 4309946A1
Authority
DE
Germany
Prior art keywords
heating
cooling
freely selectable
temperature
outside temperature
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Withdrawn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
DE19934309946
Other languages
German (de)
Inventor
Walter Dipl Ing Scheu
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 US08/101,613 priority Critical patent/US5439049A/en
Publication of DE4309946A1 publication Critical patent/DE4309946A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/1927—Control of temperature characterised by the use of electric means using a plurality of sensors
    • G05D23/193—Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperaure in different places in thermal relationship with one or more spaces
    • G05D23/1931—Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperaure in different places in thermal relationship with one or more spaces to control the temperature of one space

Landscapes

  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Building Environments (AREA)
  • Control Of Temperature (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Description

Analog zum bereits beschriebenen Verfahren zur Steuerung des Heizbetriebs muß der Kühlbetrieb einschalten, wenn
TKist<TKsoll.Analogous to the previously described procedure for controlling the heating mode, the cooling mode must switch on if
T Kist <T Ksoll .

Dabei ist TKist=gemessene Kühlflächen-Temperatur
TKsoll=erforderliche Kühlflächen-Temperatur.T Kist = measured cooling surface temperature
T Ksoll = required cooling surface temperature.

TKsoll hängt von den Außen-Temperaturen und von den bauli­ chen, nutzerseitigen und klimatischen Einflüssen ab. Diese Abhängigkeit wird in einer Kühlkurve dargestellt, wie z. B. in der Zeichnung dargestellt. Bei sehr großen Kühlflächen - wie sie z. B. in dem in P 40 27 833 beschriebenen und ähnlich trägen Systemen gegeben sind - ist diese Kühlkurve sehr flach und mit einer geraden gemäß folgender Formel ausreichend defi­ niert:
TKsoll=TA·aK+bK.T Ksoll depends on the outside temperatures and the structural, user and climatic influences. This dependence is shown in a cooling curve, such as. B. shown in the drawing. With very large cooling surfaces - as z. B. in the similarly slow systems described in P 40 27 833 - this cooling curve is very flat and sufficiently defined with a straight line according to the following formula:
T Ksoll = T A · a K + b K.

Dabei ist TA: gemessene Außen-Temperatur,
aK: Faktor für die wählbare Steilheit der Kühlkurve,
bK: wählbare Temperaturdifferenz für die Parallelverschiebung der Kühlkurve. Where T A is the measured outside temperature,
a K : factor for the selectable steepness of the cooling curve,
b K : selectable temperature difference for the parallel shift of the cooling curve.

Der Kühlbetrieb wird bei dieser Steuerung also eingeschaltet, wenn
TKist<TA·aK+bK.The cooling mode is switched on with this control, if
T Kist <T A · a K + b K.

Bei trägen Systemen sind die Nachteile einer solchen Steuer­ ung für den Kühlbetrieb dieselben, wie sie für den Heizbe­ trieb bereits beschrieben wurden.In slow systems, the disadvantages of such a tax are The same for cooling operation as for heating have already been described.

Dem erfindungsgemäßen Verfahren zur Steuerung träger Kühl­ systeme liegt deshalb analog zur Steuerung träger Heizsys­ teme die entsprechende Aufgabenstellung zugrunde:The inventive method for controlling slow cooling systems is therefore analogous to the control of slow heating systems based on the corresponding task:

  • - Es müssen die Tag/Nacht-Schwankungen unberücksichtigt bleiben, da die Speicherfähigkeit träger Systeme und der den trägen Systemen meist zugehörige automatische Selbstregel­ ungseffekt eine solche Berücksichtigung weder ermöglichen noch erfordern.- The day / night fluctuations must be disregarded remain because the storage capacity of sluggish systems and the inertial systems usually associated with sluggish systems effect such a consideration still require.
  • - Es muß ferner bewirkt werden, daß der Kühlbetrieb gemäß jener mittleren Tagesaußentemperatur erfolgt, die nach Ablauf der durch die Trägheit des Systems bedingten langen Reaktionszeit zu erwarten ist. D.h. das Verfahren muß Trends zu allgemein wärmerem oder kälterem Wetter vorausschauend erkennen und berücksichtigen können.- It must also be ensured that the cooling operation according to that mean daily outside temperature takes place after Expiry of the long due to the inertia of the system Response time is expected. I.e. the process must be trends Looking ahead to generally warmer or colder weather recognize and take into account.

Diese Aufgabe wird erfindungsgemäß genauso wie zur Steuerung des Heizbetriebs gelöst:According to the invention, this task is performed in exactly the same way as for control of heating operation solved:

Anstelle momentaner Außentemperaturen werden für die der Steuerung zugrundezulegenden Werte für die Außentemperatur gemäß folgender Formel vorausschauend ermittelt:
TAM=TAM2+(TAM2-TAM1)·d/c.Instead of the current outside temperature, the values for the outside temperature to be used as the basis for the control are determined in advance using the following formula:
T AM = T AM2 + (T AM2 -T AM1 ) d / c.

Die Bedeutungen der in dieser Gleichung gewählten Bezeich­ nungen sind dieselben, wie in der Beschreibung des Verfah­ rens zur Steuerung des Heizbetriebs. The meanings of the terms chosen in this equation The same as in the description of the procedure rens to control the heating operation.  

Setzt man diese, nach einiger Zeit zu erwartende Außentempe­ ratur (TAM) anstelle von TA in die o.g. Formel "TKsoll=TA·aK+bK" ein, wird die Kühlung eingeschaltet, wenn
TKist<{TAM2+(TAM2-TAM1)×d/c}·aK+bK.If one uses this, after some time to be expected outside temperature (T AM ) instead of T A in the above formula "T Ksoll = T A · a K + b K ", the cooling is switched on when
TK is <{T AM2 + (T AM2 -T AM1 ) × d / c} · a K + b K.

Das beschriebene Verfahren wird - wie das Verfahren zur Steuerung des Heizbetriebs - in dieselbe handelsübliche Com­ puter-gesteuerte Regeleinrichtungen einprogrammiert. Anhand der Meßdaten und aufgrund des beschriebenen Verfahrens ent­ scheidet dann die Regeleinrichtung vorausschauend über den Kühlbetrieb.The procedure described is - like the procedure for Control of heating operation - in the same commercial Com Computer-controlled control devices programmed. Based the measurement data and based on the described method ent then the control device looks ahead over the Cooling mode.

Außerdem wird in die Computer-gesteuerte Regeleinrichtung jene frei wählbare Tagesaußentemperatur einprogrammiert, unterhalb welcher das Verfahren für den Heizbetrieb ange­ wandt werden soll. Ferner wird in die Computer-gesteuerte Regeleinrichtung auch jene frei wählbarer mittlere Tages­ außentemperatur einprogrammiert, oberhalb welcher das Ver­ fahren für den Kühlbetrieb angewandt werden soll. Diese beiden mittleren Tagesaußentemperaturen werden zweckmäßiger­ weise so auseinanderliegend gewählt, daß ein Außentemperatur- Bereich entsteht, in welchem weder eine Heizung noch eine Kühlung betrieben werden muß.In addition, the computer-controlled control device that freely selectable daily outside temperature programmed, below which the procedure for heating is indicated should be turned. It is also computer-controlled Control device also those freely selectable middle day programmed outside temperature, above which the Ver drive for cooling operation to be applied. These two mean daily outside temperatures are more appropriate chosen so apart that an outside temperature Area arises in which neither heating nor Cooling must be operated.

Für den Kühlbetrieb sind die mit der Erfindung erzielten Vorteile für träge Systeme:For cooling operation, those achieved with the invention are Advantages for slow systems:

  • - Das Verfahren legt nicht momentane sondern die erst in einigen Stunden vorausschauend zu erwartende Außentempera­ turen zugrunde und ermöglicht so für träge, d. h. speicherfä­ hige Systeme eine quasi vorbereitende Kühlung für den nächsten Tag und damit einen Kühlbetrieb auch nachts und eine kleinere Dimensionierung der Kältemaschine.- The procedure does not place the current one but only in outdoor temperature to be expected a few hours in advance underlying structures and thus allows for sluggish, d. H. storable systems a quasi preparatory cooling for the next day and therefore a cooling operation also at night and a smaller dimensioning of the chiller.
  • - Das Verfahren kontrolliert in relativ geringen Zeitab­ ständen, ob ein Kühlbetrieb beibehalten oder abgebrochen werden muß. - The process controls in a relatively short time whether cooling operation is maintained or canceled must become.  
  • - Das Verfahren ist für träge Kühlsysteme - wie z. B. in P 40 27 833 beschrieben - unabdingbar. Erst dieses Verfahren ermöglicht, solche umweltfreundlichen Systeme problemlos zu betreiben.- The process is for slow cooling systems - such. B. in P 40 27 833 described - indispensable. First this procedure enables such environmentally friendly systems to easily operate.

Claims (3)

1. Verfahren gemäß Patentanmeldung P42 25 622.4 und bei welchem zur Steuerung von Einrichtungen zum Heizen und Kühlen von Gebäuden die erforderliche Temperatur im Heiz- und Kühlsystem in Ab­ hängigkeit von der Außentemperatur und von einem frei wählbaren Faktor mehr oder weniger steil ansteigend oder fallend gewählt werden kann, und bei welchem dieser mehr oder weniger steile Verlauf der erforderlichen Tempera­ tur im Heiz- und Kühlsystem um eine frei wählbare, aber konstant bleibende Temperaturdifferenz insgesamt mehr oder weniger hoch gewählt, d. h. parallel verschoben wer­ den kann, dadurch gekennzeichnet, daß für den Heizbetrieb und für den Kühlbetrieb verschiedene Faktoren und Temperaturdif­ ferenzen gewählt werden.1. The method according to patent application P42 25 622.4 and in which to control devices for heating and cooling buildings, the required temperature in the heating and cooling system depending on the outside temperature and of a freely selectable factor can be selected more or less steeply increasing or decreasing can, and in which this more or less steep course of the required tempera ture in the heating and cooling system by a freely selectable but constant temperature difference is chosen overall more or less high, ie shifted in parallel, who can, characterized in that for heating operation and various factors and temperature differences can be selected for cooling operation. 2. Verfahren gemäß Anspruch 1 und 2, dadurch gekennzeichnet, daß die Steuerung einen Heizbe­ trieb nur unterhalb einer frei wählbaren mittleren Tages-Außentemperatur zuläßt.2. The method according to claim 1 and 2, characterized in that the control a Heizbe only drifted below a freely selectable middle one Permits daily outside temperature. 3. Verfahren gemäß Anspruch 1 und 2, dadurch gekennzeichnet, daß die Steuerung einen Kühlbe­ trieb nur oberhalb einer frei wählbaren mittleren Tages-Außentemperatur zuläßt.3. The method according to claim 1 and 2, characterized in that the control a cooling only drove above a freely selectable middle one Permits daily outside temperature.
DE19934309946 1992-08-03 1993-03-16 Process for controlling inert systems for heating and cooling buildings Withdrawn DE4309946A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US08/101,613 US5439049A (en) 1992-08-03 1993-08-03 Method for controlling sluggish heating and cooling systems for buildings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19924225622 DE4225622A1 (en) 1992-08-03 1992-08-03 Control method for building heating and cooling systems with inertia - estimating average external temp. against time from measured values over previous 24 hour period taking account of day-night fluctuations and trends

Publications (1)

Publication Number Publication Date
DE4309946A1 true DE4309946A1 (en) 1993-10-28

Family

ID=6464736

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19924225622 Withdrawn DE4225622A1 (en) 1992-08-03 1992-08-03 Control method for building heating and cooling systems with inertia - estimating average external temp. against time from measured values over previous 24 hour period taking account of day-night fluctuations and trends
DE19934309946 Withdrawn DE4309946A1 (en) 1992-08-03 1993-03-16 Process for controlling inert systems for heating and cooling buildings

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE19924225622 Withdrawn DE4225622A1 (en) 1992-08-03 1992-08-03 Control method for building heating and cooling systems with inertia - estimating average external temp. against time from measured values over previous 24 hour period taking account of day-night fluctuations and trends

Country Status (2)

Country Link
DE (2) DE4225622A1 (en)
GB (1) GB2269917A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT398858B (en) * 1992-11-02 1995-02-27 Vaillant Gmbh METHOD FOR CONTROLLING / CONTROLLING A HEATER OUTDOOR TEMPERATURE
RU2180771C2 (en) * 1996-03-12 2002-03-20 Рейкем Корпорейшн Electric heating system
DE19747592B4 (en) * 1996-10-31 2005-11-17 VTI Thüringer Verfahrenstechnisches Institut für Umwelt und Energie e.V. Method for controlling a heating system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3210428A1 (en) * 1982-03-22 1983-09-22 Centra-Bürkle GmbH & Co, 7036 Schönaich METHOD AND DEVICE FOR OPTIMIZING THE HEATING CURVE OF A HEATING SYSTEM
SE8401173L (en) * 1984-03-02 1985-09-03 Tour & Andersson Ab TEMPERATURE CONTROLLER FOR HEATING INSTALLATIONS
US4706882A (en) * 1985-02-15 1987-11-17 Honeywell Inc. Adaptive optimum start

Also Published As

Publication number Publication date
DE4225622A1 (en) 1993-03-11
GB9315853D0 (en) 1993-09-15
GB2269917A (en) 1994-02-23

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