GB1095476A - - Google Patents

Info

Publication number
GB1095476A
GB1095476A GB1095476DA GB1095476A GB 1095476 A GB1095476 A GB 1095476A GB 1095476D A GB1095476D A GB 1095476DA GB 1095476 A GB1095476 A GB 1095476A
Authority
GB
United Kingdom
Prior art keywords
flow
thermocouples
rate
measuring
oct
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.)
Expired
Application number
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.)
Publication date
Publication of GB1095476A publication Critical patent/GB1095476A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/68—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using thermal effects
    • G01F1/684—Structural arrangements; Mounting of elements, e.g. in relation to fluid flow
    • G01F1/688—Structural arrangements; Mounting of elements, e.g. in relation to fluid flow using a particular type of heating, cooling or sensing element
    • G01F1/6888—Thermoelectric elements, e.g. thermocouples, thermopiles
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/704—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow using marked regions or existing inhomogeneities within the fluid stream, e.g. statistically occurring variations in a fluid parameter
    • G01F1/708—Measuring the time taken to traverse a fixed distance
    • G01F1/7084—Measuring the time taken to traverse a fixed distance using thermal detecting arrangements
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C17/00—Monitoring; Testing ; Maintaining
    • G21C17/02—Devices or arrangements for monitoring coolant or moderator
    • G21C17/032—Reactor-coolant flow measuring or monitoring
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C17/00—Monitoring; Testing ; Maintaining
    • G21C17/10—Structural combination of fuel element, control rod, reactor core, or moderator structure with sensitive instruments, e.g. for measuring radioactivity, strain
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Measuring Volume Flow (AREA)
  • Monitoring And Testing Of Nuclear Reactors (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)

Abstract

1,095,476. Measuring fluid-flow electrically. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Oct.2, 1964 [Oct. 17, 1963], No.41034/63. Heading G1N. The rate of flow of a fluid is determined from the phase difference in the response signals of two similar thermally sensitive elements, e.g. thermocouples, separated by a known distance in the direction of flow to thermal fluctuations of a predetermined frequency, selected by a narrow band filter. In another form of flowmeter, two thermocouples with dissimilar time constants are located at the same location and the phase difference in their response signals to a selected frequency component indicates the rate of flow by reference to a predetermined relationship. The two thermocouples are mounted in a common probe, with one thermally shielded to make the time constants different. It is stated that the rate of flow may be determined by measuring the time constant of a single thermocouple, e.g. by measuring the delay at different frequencies.
GB1095476D 1963-10-17 Expired GB1095476A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4103463 1963-10-17

Publications (1)

Publication Number Publication Date
GB1095476A true GB1095476A (en) 1900-01-01

Family

ID=10417807

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1095476D Expired GB1095476A (en) 1963-10-17

Country Status (3)

Country Link
BE (1) BE654508A (en)
DE (1) DE1473206C3 (en)
GB (1) GB1095476A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0072044A1 (en) * 1981-07-06 1983-02-16 The Dow Chemical Company Cell apparatus for metering liquid flow in the range of less than 10 ml/minute
GB2116699A (en) * 1982-03-02 1983-09-28 Itt Ind Ltd Fluid flowmeter
US4491024A (en) * 1981-07-06 1985-01-01 The Dow Chemical Company Method for metering sub-10 cc/minute liquid flow
US4532811A (en) * 1981-07-06 1985-08-06 The Dow Chemical Company Apparatus for metering sub-10 cc/minute liquid flow
US4628743A (en) * 1981-07-06 1986-12-16 The Dow Chemical Company Apparatus and method for metering sub-10 cc/minute liquid flow
US5176199A (en) * 1990-09-14 1993-01-05 Taprogge Gmbh Method for measuring the cleaning effectiveness of cleaning bodies on heat exchangers
US20220084702A1 (en) * 2016-06-09 2022-03-17 Ge-Hitachi Nuclear Energy Americas Llc Apparatus with flow assembly including temperature sensors and heating element

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1359151A (en) * 1970-07-06 1974-07-10 Coulthard J Measurement of fluid flow rates

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0072044A1 (en) * 1981-07-06 1983-02-16 The Dow Chemical Company Cell apparatus for metering liquid flow in the range of less than 10 ml/minute
US4491024A (en) * 1981-07-06 1985-01-01 The Dow Chemical Company Method for metering sub-10 cc/minute liquid flow
US4532811A (en) * 1981-07-06 1985-08-06 The Dow Chemical Company Apparatus for metering sub-10 cc/minute liquid flow
US4628743A (en) * 1981-07-06 1986-12-16 The Dow Chemical Company Apparatus and method for metering sub-10 cc/minute liquid flow
GB2116699A (en) * 1982-03-02 1983-09-28 Itt Ind Ltd Fluid flowmeter
US5176199A (en) * 1990-09-14 1993-01-05 Taprogge Gmbh Method for measuring the cleaning effectiveness of cleaning bodies on heat exchangers
US20220084702A1 (en) * 2016-06-09 2022-03-17 Ge-Hitachi Nuclear Energy Americas Llc Apparatus with flow assembly including temperature sensors and heating element

Also Published As

Publication number Publication date
DE1473206C3 (en) 1975-07-31
DE1473206A1 (en) 1968-12-19
BE654508A (en) 1965-04-16
DE1473206B2 (en) 1974-12-19

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