EP1743133A1 - Verfahren und einrichtung zur ermittlung der leistungsfähigkeit eines wärmetauschers - Google Patents
Verfahren und einrichtung zur ermittlung der leistungsfähigkeit eines wärmetauschersInfo
- Publication number
- EP1743133A1 EP1743133A1 EP05735079A EP05735079A EP1743133A1 EP 1743133 A1 EP1743133 A1 EP 1743133A1 EP 05735079 A EP05735079 A EP 05735079A EP 05735079 A EP05735079 A EP 05735079A EP 1743133 A1 EP1743133 A1 EP 1743133A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- product
- heat exchanger
- heat
- temperature
- auxiliary medium
- 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
Links
- 238000000034 method Methods 0.000 title claims abstract description 17
- 108010074506 Transfer Factor Proteins 0.000 claims description 10
- 239000002826 coolant Substances 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 238000011156 evaluation Methods 0.000 claims description 4
- 238000009529 body temperature measurement Methods 0.000 claims 1
- 238000012546 transfer Methods 0.000 abstract description 4
- 238000004364 calculation method Methods 0.000 description 7
- 238000010327 methods by industry Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000007619 statistical method Methods 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000000246 remedial effect Effects 0.000 description 1
- 238000010187 selection method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012800 visualization Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
Definitions
- the invention relates to a method and a device for determining the performance of a heat exchanger, by means of which the temperature of a product flowing through the heat exchanger is to be changed with the aid of an auxiliary medium which serves as a coolant or heating medium.
- a heat exchanger is a pipe through which a product flows which is to be cooled or heated by the surrounding medium, which is referred to as the auxiliary medium.
- the largest possible heat exchange surface and the largest possible heat transfer factor are decisive for the performance of the heat exchanger.
- Certain requirements for the heat exchanger result from the materials used, for example the type of product and auxiliary medium, the required cooling or heating output, the cooling process used, structural conditions or legal regulations, for example with regard to cleaning. Due to the different requirements, many different types of heat exchangers are common, for example stirred tanks, cocurrent and countercurrent heat exchangers, tube bundle heat exchangers or plate heat exchangers.
- Fouling is a collective term for all types of soiling. Fouling changes the heat transfer factor between the auxiliary medium, which serves as a coolant or heating medium, and the product. As a result, more coolant or heating medium than auxiliary medium it is necessary that the operating costs increase and / or that in extreme cases the desired temperature of the product can no longer be set by the heat exchanger. If this extreme case occurs, this can cause an unscheduled downtime of the process engineering system in which the heat exchanger is used. A common remedial measure is therefore a regular production shutdown for the maintenance and cleaning of the heat exchangers. However, this increases the operating costs and limits the availability of the system.
- the invention has for its object to provide a method and a device which make it possible to recognize a deterioration in the performance of a heat exchanger at an early stage.
- the new method of the type mentioned has the features specified in claim 1 and the new device has the features specified in claim 5. Further developments of the invention are described in the dependent claims.
- the invention has the advantage that the effects of changed heat transfer factors on the operation of the heat exchanger are determined and displayed in such a descriptive manner that they can also be correctly interpreted by non-specialists.
- the ascertained and displayed outlet temperature of the product which would occur with the maximum flow of the auxiliary medium, is a particularly clear figure for the user, since here the heat exchanger is operated at its performance limit. This is because it becomes visible how the available adjustment range is reduced by increasing fouling. It is therefore easy for the user to see whether and for how long the heat exchanger will set the desired temperature of a product and in a process-technical system without problems can continue to be operated. Unexpected downtimes of the system can thus be largely avoided.
- the arithmetic mean of the values of the outlet temperature of the product in the subset of pairs of values can advantageously be calculated as the statistical criterion for selecting a pair of values. In this way, a particularly simple, reliable and descriptive selection procedure is used.
- a calculation and display of the standard deviation of the values of the outlet temperature of the product in the subset of pairs of values has the advantage that a statement about the reliability of the result is obtained.
- Figure 1 is a schematic diagram of a heat exchanger
- FIG 2 is a display to illustrate the performance of a heat exchanger. Depending on the conditions of use, there are heat exchangers in a wide variety of designs. The basic structure of a heat exchanger is shown in Figure 1.
- a heat exchanger 1 consists of a container 2, into which a product flows in through an inlet 3 and flows out again through an outlet 4.
- the direction of flow of the product is indicated by an arrow 6.
- the container 2 In the container 2 there is a tortuous tube 7, through which an auxiliary medium flows in the direction of an arrow 8. If the product is cooled by the heat exchanger 1, cooling water flows through the pipe 7, for example.
- the auxiliary medium enters the heat exchanger 1 at an inlet 9 and exits again at an outlet 10.
- the inlet temperature of 3 K, A of the auxiliary medium is a Temp eraturmessumformer c
- control device 18 In addition to its function of calculating the position of the control valve 17 as a function of the measured values of the transducers 11 ... 16, the control device also has the function of an evaluation device which, in order to determine the performance of the heat exchanger 1, determines the outlet temperature of the outlet medium which occurs at maximum flow of the auxiliary medium Product determined.
- the control device 18 is implemented, for example, by an automation device which is connected via a data transmission network the transducers 11 ... 16 and the control valve 17 is connected.
- the display of the determined outlet temperature and other values that are helpful for assessing the performance of the heat exchanger 1 by a user can then be carried out with the aid of a faceplate 19, that is to say through a display window for process visualization on an operating and monitoring station.
- the user can take suitable measures to eliminate the problem at a time before a desired outlet temperature of the product can no longer be set and thus before the process in which the Heat exchanger is used, would no longer be guaranteed.
- control device 18 which due to its additional function is also referred to as an evaluation device 18, determines the performance of the heat exchanger 1.
- the Austrittstemp ⁇ erature 3, from the product and the Auslingerstemp c erature 3K, from the auxiliary medium can be only in a certain range, defined by the inlet temperature of 3 W, A of the product and the inlet temperature 3K, A of the
- Auxiliary medium is limited. If, for example, a product to be cooled down, then the discharge temperature can 3 W, Aeus the product is not less than the strict requirementstem- c p erature 3K, A of the auxiliary medium. Likewise, the outlet temperature 3K, from a coolant cannot become g 3 larger than that
- Outlet temperatures are formed, which are mathematically possible.
- the heat quantities transferred are calculated at the maximum flow of the auxiliary medium. The evaluation takes into account the fact that in steady state a change Q w due to the balanced energy balance
- Amount of heat of the product is equal to a change Q ⁇ of the amount of heat of the auxiliary medium and equal to the amount of heat Q transmitted through the heat exchanger.
- the amount of heat transferred is therefore calculated in three different ways.
- the change in Q w of the heat quantity of the product is determined from the Temp eraturdifferenz c inlet temperature between 3 and A
- the mass flow mw, Atuei ⁇ can be determined in a simple manner as the product of the flow F w measured with the flow meter 16 and the density of the flowing product.
- the change in the amount of heat Q ⁇ of the auxiliary medium is determined from the Temp eraturdifferenz c between inlet temp erature ⁇ 3K, E ⁇ n and
- the currently effective heat transfer factor k w ⁇ rk is first determined on the basis of the current measured values of the transmitters 11 ... 16. The following equation applies to the example of a heat exchanger with counterflow:
- A denotes the effective exchange surface of the heat exchanger and ⁇ w the specific density of the product. This equation applies in the event that the quantities are not temperature-dependent or pressure-dependent. Otherwise, this can be taken into account in the calculation to increase the accuracy.
- the transferable heat quantity Q is calculated on the basis of the mean temperature difference between the product and the auxiliary medium, the heat transfer factor k eff and the effective exchange area A according to the following equation:
- this equation can be solved analytically. However, it is easier and easier to transfer to different designs of heat exchangers to use the calculated changes in heat quantity and the calculated value of the transferred heat quantity to determine a subset from the large number of value pairs for which the calculated values lie within a predeterminable tolerance.
- the last-mentioned equation thus corresponds to a “filter” with which the physically meaningful value pairs can be sorted out as a subset from the multitude of mathematically possible value pairs.
- the subset of the pairs of values is correspondingly larger, so that it is advantageous to use a statistical method to select a pair of values which, with a high degree of probability, contains the outlet temperatures which occur at the maximum flow of the auxiliary medium.
- the arithmetic mean of the values of the outlet temperatures of the product, which are contained in the pairs of values of the subset is calculated.
- the standard deviation of the values of the outlet temperatures of the product from this subset as well as the minimum value and the maximum value of the outlet temperature of the product are additionally determined. If these values are larger, this speaks for a comparatively imprecise result. If the standard deviation is smaller or the minimum and maximum values are closely related, it can be assumed that the result is accurate.
- the range of values begins at the lower end of the bar with 0 ° C and ends at the upper end with 100 ° C.
- a second bar B2 To the right of this bar Bl is a second bar B2, by means of which the user can easily assess the performance of the heat exchanger.
- the range of values of the beam B2 corresponding to that of the beam Bl.
- the height of a lower beam section B21 shows the minimal mög 3 Liche Austrittstemp L erature 3, Off, New domestic product of the process at the new state of the heat exchanger on. In new condition, this was calculated and saved on the basis of the effective heat transfer factor measured at that time. In the example, this temperature is 31.5 ° C.
- a bar section B22 lying above shows the height of the degradation in performance of the heat exchanger due to fouling that has already occurred.
- Another bar section B23 shows with its upper end the entry temperature c -atur 3, Em of the product, which is currently measured at 90 ° C.
- the bar section B23 thus corresponds to the setting range of the heat exchanger.
- the vertical distance between the upper limit of the beam portion Bll and the upper limit of the beam portion B22, which is in the shown example 15.8 ° C, showing how large a still remaining control range with respect to the currently existing Austrittstemp c erature 3W, off, current is the product. This means that even a user without special know-how can assess how reliably the heat exchanger can continue to be operated. In order to enable the values on the faceplate to be read accurately, these are of course also used in practice displayed numerically. These numerical displays are in figure
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
- Air Conditioning Control Device (AREA)
- Feedback Control In General (AREA)
- Control Of Temperature (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004021423A DE102004021423A1 (de) | 2004-04-30 | 2004-04-30 | Verfahren und Einrichtung zur Ermittlung der Leistungsfähigkeit eines Wärmetauschers |
PCT/EP2005/004657 WO2005106375A1 (de) | 2004-04-30 | 2005-04-29 | Verfahren und einrichtung zur ermittlung der leistungsfähigkeit eines wärmetauschers |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1743133A1 true EP1743133A1 (de) | 2007-01-17 |
EP1743133B1 EP1743133B1 (de) | 2007-08-08 |
Family
ID=34966987
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05735079A Active EP1743133B1 (de) | 2004-04-30 | 2005-04-29 | Verfahren und einrichtung zur ermittlung der leistungsfähigkeit eines wärmetauschers |
Country Status (4)
Country | Link |
---|---|
US (1) | US7726874B2 (de) |
EP (1) | EP1743133B1 (de) |
DE (2) | DE102004021423A1 (de) |
WO (1) | WO2005106375A1 (de) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005043952A1 (de) * | 2005-09-15 | 2007-04-05 | Danfoss A/S | Wärmetauscher und Verfahren zum Regeln eines Wärmetauschers |
CA2641698C (en) * | 2006-02-10 | 2011-06-21 | Danfoss A/S | Control of a system with a large thermal capacity |
DE102007062422A1 (de) * | 2007-12-20 | 2009-06-25 | Bayer Materialscience Ag | Verfahren und Anlage zur Regelung eines kontinuierlichen Kristallisationsprozesses |
US7775706B1 (en) * | 2009-07-08 | 2010-08-17 | Murray F Feller | Compensated heat energy meter |
DE102011111556B4 (de) * | 2011-08-26 | 2021-02-18 | Man Truck & Bus Se | Verfahren zur Funktionsüberprüfung eines Klimageräts |
CH706736A1 (de) * | 2012-07-09 | 2014-01-15 | Belimo Holding Ag | Verfahren zum Betrieb eines Wärmetauschers sowie HVAC-Anlage zur Durchführung des Verfahrens. |
FR2995063B1 (fr) * | 2012-08-28 | 2018-08-10 | Kp1 | Recuperateur de chaleur pour douche |
US9631585B2 (en) * | 2013-09-11 | 2017-04-25 | GM Global Technology Operations LLC | EGHR mechanism diagnostics |
DE102015107224A1 (de) * | 2015-05-08 | 2016-11-10 | Endress + Hauser Messtechnik Gmbh+Co. Kg | Mobile Vorrichtung zur Vor-Ort-Bestimmung des Wirkungsgrades |
CZ2015399A3 (cs) * | 2015-06-15 | 2017-02-08 | Jiří Dostál | Zapojení systému pro řízení výkonu a diagnostiku tepelného výměníku |
WO2017062457A1 (en) * | 2015-10-05 | 2017-04-13 | Crowley Maritime Corporation | Lng gasification systems and methods |
CN109476572B (zh) | 2016-07-22 | 2022-02-11 | 沙特基础工业全球技术有限公司 | 用于连续制造双酚a的方法 |
BR112020005034B1 (pt) | 2017-09-19 | 2023-10-10 | Ecolab Usa Inc | Método para controlar tratamento de água de resfriamento, e,sistema |
WO2019094747A1 (en) | 2017-11-10 | 2019-05-16 | Ecolab Usa Inc. | Cooling water monitoring and control system |
US10415899B2 (en) * | 2017-12-28 | 2019-09-17 | Asm Ip Holding B.V. | Cooling system, substrate processing system and flow rate adjusting method for cooling medium |
AT16461U1 (de) * | 2018-08-27 | 2019-10-15 | Ivd Prof Hohenberg Gmbh | Prüfeinrichtung zum ermitteln des dynamischen thermischen verhaltens eines prüfobjektes |
DE102019217032A1 (de) * | 2019-11-05 | 2021-05-06 | Zf Friedrichshafen Ag | Verfahren und Anordnung zum Überwachen eines Zustands eines Getriebekühlers |
CN113567171B (zh) * | 2021-09-27 | 2021-12-21 | 江苏新恒基特种装备股份有限公司 | 高温气冷堆蒸汽发生器的换热器热量测试装置、系统及方法 |
Family Cites Families (63)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1988787A (en) * | 1933-05-23 | 1935-01-22 | Hood Rubber Co Inc | Manufacture of embossed sheet material and roll for producing same |
US2897538A (en) * | 1956-11-15 | 1959-08-04 | Commercial Plastics Ltd | Means for bending the rolls of rolling machines |
US3089191A (en) * | 1961-06-13 | 1963-05-14 | American Pipe & Constr Co | Product method and apparatus for making a hobbed-surfaced sheet material |
NL299751A (de) * | 1962-10-26 | |||
US3312583A (en) * | 1963-10-02 | 1967-04-04 | James J Rochlis | Apertured and staggered molded pile product |
US3508889A (en) * | 1964-05-22 | 1970-04-28 | Exxon Research Engineering Co | Process for producing high quality town gas for delivery |
US3353663A (en) * | 1966-02-10 | 1967-11-21 | Minnesota Mining & Mfg | Adherent fasteners |
US3350671A (en) * | 1966-07-27 | 1967-10-31 | Jr Robert C Seamans | High power-high voltage waterload |
US3593578A (en) * | 1968-05-09 | 1971-07-20 | Emerson Electric Co | Heat transfer meters |
US3594863A (en) * | 1969-07-10 | 1971-07-27 | American Velcro Inc | Apparatus for molding plastic shapes in molding recesses formed in a moving endless belt |
US3871444A (en) * | 1971-08-02 | 1975-03-18 | Beckman Instruments Inc | Water quality analysis system with multicircuit single shell heat exchanger |
US3775291A (en) * | 1971-09-02 | 1973-11-27 | Lummus Co | Production of jet fuel |
US3756760A (en) * | 1971-11-08 | 1973-09-04 | Hallmark Cards | Finishing roll for extruded plastic sheet |
US3752619A (en) * | 1971-11-11 | 1973-08-14 | American Velcro Inc | Production of a continuous molded plastic strip |
US3956056A (en) * | 1972-11-20 | 1976-05-11 | Uniroyal Inc. | Fabric coating by extrusion die-calendering apparatus and method |
GB1472405A (en) * | 1973-09-27 | 1977-05-04 | Ici Ltd | Production of pile surfaced materials |
US3918300A (en) * | 1974-01-03 | 1975-11-11 | Aaron Weisstuch | Heat transfer measuring device |
BE840727A (fr) * | 1975-05-24 | 1976-08-02 | Calandre a cylindres multiples | |
AU504975B2 (en) * | 1976-02-20 | 1979-11-01 | Textron Inc. | Forming fastening element |
FI64902C (fi) * | 1976-03-30 | 1984-02-10 | Wiik & Hoeglund | Foerfarande foer kompensering av valsboejningen i en kalander |
CH601686A5 (de) * | 1976-11-30 | 1978-07-14 | Escher Wyss Ag | |
US4224825A (en) * | 1978-10-12 | 1980-09-30 | Wilgood Corporation | Heat meters |
US4163388A (en) * | 1978-10-20 | 1979-08-07 | International Telephone And Telegraph Corporation | Calorimeter |
JPS5747199A (en) | 1980-09-03 | 1982-03-17 | Hitachi Ltd | Device and method for diagnosis of heat exchanger |
SE8006391L (sv) | 1980-09-12 | 1982-03-13 | Jacob Weitman | Sett att reglera en vermevexlare |
GB2107475B (en) * | 1981-09-26 | 1985-08-21 | Joshua Swithenbank | Measuring fluid flow |
CH662837A5 (de) * | 1983-02-10 | 1987-10-30 | Escher Wyss Ag | Kalander zur druck- und waermebehandlung von warenbahnen. |
US4766553A (en) * | 1984-03-23 | 1988-08-23 | Azmi Kaya | Heat exchanger performance monitor |
KR890001890B1 (ko) | 1984-03-23 | 1989-05-30 | 더 뱁콕 앤드 윌콕스 컴퍼니 | 열교환기 성능 감지기 |
US4794028A (en) * | 1984-04-16 | 1988-12-27 | Velcro Industries B.V. | Method for continuously producing a multi-hook fastner member and product of the method |
GB2161105B (en) * | 1984-07-04 | 1988-06-15 | Fred Whitehead | Calendar or roll assembly |
DE3430947A1 (de) | 1984-08-22 | 1986-03-06 | Martin Dr. 8000 München Alexander | Verfahren und vorrichtung zur ermittlung der in einem waermetauscher ausgetauschten waermemenge |
US4609581A (en) * | 1985-04-15 | 1986-09-02 | Minnesota Mining And Manufacturing Company | Coated abrasive sheet material with loop attachment means |
EP0322127B1 (de) * | 1987-12-04 | 1994-02-02 | Canon Kabushiki Kaisha | Rotierendes Bauteil für Fixiergerät und Fixiergerät hierfür |
US5254194A (en) * | 1988-05-13 | 1993-10-19 | Minnesota Mining And Manufacturing Company | Coated abrasive sheet material with loop material for attachment incorporated therein |
DE3903022C1 (de) * | 1989-02-02 | 1990-04-26 | Hermann Berstorff Maschinenbau Gmbh, 3000 Hannover, De | |
DE3918531A1 (de) * | 1989-06-07 | 1990-12-13 | Taprogge Gmbh | Verfahren und vorrichtung zur ueberwachung des wirkungsgrades eines kondensators |
JPH0397525A (ja) * | 1989-09-12 | 1991-04-23 | Canon Inc | 光情報記録媒体用基板の製造方法 |
US5263840A (en) * | 1989-10-30 | 1993-11-23 | Sulzer-Escher Wyss Gmbh | Calendar for surface treatment of material webs |
US4972903A (en) * | 1990-01-25 | 1990-11-27 | Phillips Petroleum Company | Heat exchanger |
US5459498A (en) * | 1991-05-01 | 1995-10-17 | Hewlett-Packard Company | Ink-cooled thermal ink jet printhead |
CH682893A5 (de) * | 1991-05-03 | 1993-12-15 | Escher Wyss Ag | Walze und Kunststoffolien-Giessanlage mit einer Walze. |
US5215704A (en) * | 1991-06-24 | 1993-06-01 | Electric Power Research Institute | Method and apparatus for in situ testing of heat exchangers |
US5260015A (en) * | 1991-08-16 | 1993-11-09 | Velcro Industries, B.V. | Method for making a laminated hook fastener |
DE4207144A1 (de) * | 1992-03-06 | 1993-09-09 | Bayer Ag | Verfahren zur regelung von waermeuebertragern |
JP2756211B2 (ja) * | 1992-06-17 | 1998-05-25 | ワイケイケイ株式会社 | 両面に係合片を有する一体成形面ファスナーの製造方法及びその装置 |
JP2744384B2 (ja) * | 1992-07-22 | 1998-04-28 | ワイケイケイ株式会社 | 裏面に裏部材を有する係合部材の製造方法及びその装置 |
US5429178A (en) * | 1993-12-10 | 1995-07-04 | Electric Power Research Institute, Inc. | Dual tube fouling monitor and method |
US5785784A (en) * | 1994-01-13 | 1998-07-28 | Minnesota Mining And Manufacturing Company | Abrasive articles method of making same and abrading apparatus |
US5505747A (en) * | 1994-01-13 | 1996-04-09 | Minnesota Mining And Manufacturing Company | Method of making an abrasive article |
TW317223U (en) * | 1994-01-13 | 1997-10-01 | Minnesota Mining & Mfg | Abrasive article |
US5615733A (en) * | 1996-05-01 | 1997-04-01 | Helio-Compatic Corporation | On-line monitoring system of a simulated heat-exchanger |
KR100206660B1 (ko) * | 1996-08-13 | 1999-07-01 | 이종훈 | 열교환기 전열면의 부착물 감시장치 및 방법 |
DE69711538T2 (de) * | 1996-10-14 | 2002-10-24 | Idemitsu Petrochemical Co., Ltd. | Verfahren zur Herstellung einer Dekorfolie und Vorrichtung zu seiner Herstellung |
US5945131A (en) * | 1997-04-16 | 1999-08-31 | Velcro Industries B.V. | Continuous molding of fastener products and the like and products produced thereby |
US6013151A (en) * | 1998-05-15 | 2000-01-11 | Clopay Plastic Products Company, Inc. | High speed method of making microporous film products |
US6962435B2 (en) * | 2000-12-15 | 2005-11-08 | Abb Technology Ltd. | Condition diagnosing |
US6931352B2 (en) * | 2001-10-19 | 2005-08-16 | General Electric Company | System and method for monitoring the condition of a heat exchange unit |
US6678628B2 (en) * | 2002-01-14 | 2004-01-13 | William J. Ryan | Apparatus and methods for monitoring and testing coolant recirculation systems |
ES2561829T3 (es) * | 2002-10-15 | 2016-03-01 | Danfoss A/S | Un procedimiento para detectar una anomalía de un intercambiador de calor |
US7051946B2 (en) * | 2003-05-29 | 2006-05-30 | Hewlett-Packard Development Company, L.P. | Air re-circulation index |
US6957693B2 (en) * | 2003-12-12 | 2005-10-25 | Honeywell International, Inc. | Heat exchanger thermal indicator |
US7134291B2 (en) * | 2004-09-22 | 2006-11-14 | Horan Christopher J | Process for refrigerant charge level detection using a neural net having one output neuron |
-
2004
- 2004-04-30 DE DE102004021423A patent/DE102004021423A1/de not_active Ceased
-
2005
- 2005-04-29 US US11/587,874 patent/US7726874B2/en active Active
- 2005-04-29 EP EP05735079A patent/EP1743133B1/de active Active
- 2005-04-29 WO PCT/EP2005/004657 patent/WO2005106375A1/de active IP Right Grant
- 2005-04-29 DE DE502005001196T patent/DE502005001196D1/de active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2005106375A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2005106375A1 (de) | 2005-11-10 |
EP1743133B1 (de) | 2007-08-08 |
DE102004021423A1 (de) | 2005-12-01 |
DE502005001196D1 (de) | 2007-09-20 |
US20080296010A1 (en) | 2008-12-04 |
US7726874B2 (en) | 2010-06-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1743133A1 (de) | Verfahren und einrichtung zur ermittlung der leistungsfähigkeit eines wärmetauschers | |
DE102005055333B4 (de) | Verfahren zur Leistungsbewertung von Wärmetauschern | |
DE3133222C2 (de) | ||
DE102012103652A1 (de) | Verfahren, Computerprogramm und System zur Durchführung der Interpolation bei Sensordaten zur Erzielung einer hohen Systemverfügbarkeit | |
DE102014210545A1 (de) | Verfahren zum Kalibrieren von Durchflussmessern für fluide Medien | |
EP2128551A1 (de) | Überwachung von Wärmetauschern in Prozessleitsystemen | |
WO2010026025A1 (de) | Verfahren zum betreiben einer messstelle und messstelle | |
DE69729306T2 (de) | Ereignisfeststellung mit kurzen und langen Mittelwerten | |
EP4088077B1 (de) | Verfahren und vorrichtung zur ermittlung von fouling bei einem wärmetauscher | |
CN106845826A (zh) | 一种基于PCA‑Cpk的冷连轧生产线服役质量状态评估方法 | |
EP1846886A1 (de) | Verfahren und einrichtung zur energie- und medienverbrauchserfassung und nutzerspezifischen umlage bei gemeinschaftlich genutzten raumlufttechnischen anlagen | |
EP3599583A1 (de) | Bestimmung des verbrauchs an heiz- oder kühlenergie einer baulichen untereinheit | |
DE3529257A1 (de) | Verfahren und anordnung zur ermittlung der waermeabgabe von heizflaechen einer heizungsanlage | |
WO2014067591A1 (de) | Messvorrichtung, messanordnung und verfahren zur bestimmung einer messgrösse | |
DE4412024A1 (de) | Solarkollektor mit Störungsüberwachung | |
EP4347234A1 (de) | System umfassend eine anlage mit einem heizsystem und einer vorrichtung oder komponente, sowie verfahren zur bestimmung eines energieverbrauchs der anlage | |
EP0058233B1 (de) | Verfahren und Vorrichtung zur Detektion von Natrium-Leckagen in Dampferzeugern | |
EP2327971B1 (de) | Verfahren zur Analyse der Wärmemengenverteilung in einem Heizsystem und Vorrichtung zur Durchführung des Verfahrens | |
DE102017112505A1 (de) | Verfahren zum Betreiben eines thermischen Verbrauchssystems | |
DE202021002657U1 (de) | Vorrichtung als CO2- und/oder Energiezähler | |
EP1055162A1 (de) | Prozess- und anlagendiagnoseverfahren | |
DE19504325C2 (de) | Verfahren und Vorrichtung zur kostenorientierten Überwachung und/oder Anzeige des Betriebszustandes eines reinigbaren Wärmetauschers | |
EP0530382B1 (de) | Verfahren zur Ermittlung der Heizleistung der Heizkörper einer Einrohrheizung | |
AT525900B1 (de) | Verbrauchsmesssystem für Fahrzeuge mit einer Brennstoffzelleneinheit oder einem mit Erdgas betriebenen Antrieb und Verfahren zur Verbrauchsmessung an Fahrzeugen mit einer Brennstoffzelleneinheit oder einem mit Erdgas betriebenen Antrieb | |
DE2742737C2 (de) | Verstopfungsmeßgerät zum automatischen Messen der Dichte oder Konzentration der in einem flüssigen Metall enthaltenen Verunreinigungen |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20061026 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE FR GB IT |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE FR GB IT |
|
DAX | Request for extension of the european patent (deleted) | ||
RBV | Designated contracting states (corrected) |
Designated state(s): DE FR GB IT |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20070816 |
|
REF | Corresponds to: |
Ref document number: 502005001196 Country of ref document: DE Date of ref document: 20070920 Kind code of ref document: P |
|
ET | Fr: translation filed | ||
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20080509 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 12 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 13 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 14 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20240507 Year of fee payment: 20 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20240619 Year of fee payment: 20 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20240422 Year of fee payment: 20 Ref country code: FR Payment date: 20240415 Year of fee payment: 20 |