摘要:
A heat exchanger system comprises a heat exchanger 100; and one or more sensor(s) 90 for measuring characteristics of a fluid flow field across a cross-section of a flow path in the heat exchanger 100. Each of the one or more sensor(s) 90 comprises multiple conductivity sensing elements 110 distributed across multiple locations in an array extending over the cross-section of the flow path for obtaining measurements of the fluid flow field at the multiple locations.
摘要:
The invention relates to a method for detecting deficiencies of a cooling tower (2) of a thermal facility (1) in operation in a given environment, comprising the implementation of the steps of: (a) measurement, by a plurality of sensors (13), of a set of values of physical parameters relating to the cooling tower (2), at least one of which being an endogenous parameter relating to the operation of the cooling tower (2) and at least one of which being an exogenous parameter relating to said environment; (b) calculation, by data processing means (11), of at least one expected optimum value of said endogenous parameter according to said values of the physical parameters and a model; (c) determination, by the data processing means (11), of at least one potentially deficient function of the cooling tower (2) according to the difference between the measured value and the expected optimum value of said endogenous parameter and/or the variation of said difference; (d) testing, by the data processing means (11), of each function of the cooling tower (2) defined as being potentially deficient; and (e) triggering of an alarm, by the data processing means (11), if at least one function of the cooling tower (2) is evaluated as being deficient in the test.
摘要:
Methods, devices, and systems for an inferential sensor for internal heat exchanger parameters are described herein. One device includes a memory (436), and a processor (434) configured to execute executable instructions stored in the memory (436) to receive a number of measured process variables of a heat exchanger(104, 218), including a number of measured inlet process variables and a number of measured outlet process variables, predict, using a dynamic differential model including the number of measured inlet process variables, internal parameters of the heat exchanger(104, 218) and a number of outlet process variables of the heat exchanger(104, 218), compare the number of measured outlet process variables with the number of predicted outlet process variables, and update, based on the comparison, the internal parameters of the heat exchanger(104, 218).
摘要:
Es werden ein Verfahren und eine Vorrichtung zur Bestimmung eines Gebäudewärmebedarfs auf Basis von Wärmeverbrauchsdaten beschrieben, bei denen ein Gesamtwärmeverlustkoeffizient ( u A ) ermittelt wird. Dieser Gesamtwärmeverlustkoeffizient ( u A ) wird in einen zeitinvarianten Transmissionswärmedurchgangskoeffizient ( u trans ) und einen zeitvarianten Lüftungswärmeverlustkoeffizient ( u inf ) aufgeteilt.
摘要:
Verfahren zur Durchströmungsüberwachung eines Wärmetauschers (1), vorzugsweise einer Heizungsanlage, mit mindestens 2 parallel durchströmten Fluidwegen (2, 3) sowie und einer Sammelleitung (4), in welche die mindestens 2 parallel durchströmten Fluidwege (2, 3) münden, wobei in der Sammelleitung (4), als auch in jedem der parallelen Fluidwege (2, 3) jeweils ein Temperatursensor (5, 6, 7) angeordnet ist und aus den mittels der Temperatursensoren (5, 6, 7) gemessenen Temperaturen der Anteil des Durchflusses durch mindestens einen Fluidweg (2, 3) errechnet wird.
摘要:
The invention relates to a spectrophotometer for the automated optical characterization of solar collector tubes and to a method for the operation thereof, that measures the coefficient of transmission of the glass tube (13) and of reflection of the metal tube (15). The device includes all the necessary components for taking said measurement, such as the optical bench (1) supporting the tube (2), the standard or framework (3), and the optical modules for the device, a main module (5) that generates the light bundles, a measuring module (4) that measures the coefficient of transmission of the outer glass tube (13) and the coefficient of reflection of the inner metal tube (15), a mechanical system of tube rotation (9), an electronic system of data acquisition and processing (6), an external computer (7) for controlling the device and processing the data measured, and a system of communication (8) between the device and the computer (7).
摘要:
Systems, methods and devices for utilizing an energy chassis device designed to sense, collect, store and distribute energy from where it is available using devices that harvest or convert energy to locations requiring energy such as but not limited to HVAC (heating, ventilation and cooling) systems. The systems, methods and devices can also be used with a next generation geothermal heat exchanger that achieves higher energy harvesting efficiency and provides greater functionality than current geothermal exchangers.
摘要:
The invention relates to a heat exchange system (1) including a heat exchanger (2) with a flow passage (210) arranged in a flow segment (21). For the exchange of heat between a transport fluid (3) and a heat transfer medium (4) flowing through the flow passage (210) in the operating state, the transport fluid (3) can be brought into flowing contact with the heat exchanger (2) via an inlet area (201) and can be led away again from the heat exchanger (2) via an outlet area (202). In accordance with the invention, for the determination of a degree of contamination (V) of the heat exchanger (2), a contamination sensor (5) in the form of a pressure sensor (5) and/or of a speed sensor (5) is provided with which a transport parameter (TK) can be determined which is characteristic for the flow of the transport fluid (3) from the inlet area (201) via the outlet area (202). Furthermore, the invention relates to a method for the operation of a heat exchange system (1).
摘要:
According to the present invention, a heat transfer tube monitoring apparatus for use in a heat exchanger including multiple-stage heat transfer tube bundles (11a, 11b, 12a, 12b, 13a, 13b) spaced apart from each other in a flow direction of flue gas includes a differential pressure detecting unit used for detecting a differential pressure between upstream and downstream for each of the heat transfer tube bundles (11a, 11b, 12a, 12b, 13a, 13b). With this configuration, an abnormal heat transfer tube bundle can be specified.
摘要:
A device for closing at least one inner tube in a tubular heat exchanger. The device comprises a main body provided with inner tube through holes and at least one plug configured to be inserted into the at least one inner tube.