GB2431236A - Radiant heat flux absorbed by coated test specimen - Google Patents

Radiant heat flux absorbed by coated test specimen

Info

Publication number
GB2431236A
GB2431236A GB0703415A GB0703415A GB2431236A GB 2431236 A GB2431236 A GB 2431236A GB 0703415 A GB0703415 A GB 0703415A GB 0703415 A GB0703415 A GB 0703415A GB 2431236 A GB2431236 A GB 2431236A
Authority
GB
United Kingdom
Prior art keywords
radiation
specimen
incident radiation
electrical heating
imposed
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
Application number
GB0703415A
Other versions
GB2431236B (en
GB2431236A8 (en
GB0703415D0 (en
Inventor
John L De Ris
Mohammed M Khan
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.)
FM Global Technologies LLC
Original Assignee
FM Global Technologies LLC
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 FM Global Technologies LLC filed Critical FM Global Technologies LLC
Publication of GB0703415D0 publication Critical patent/GB0703415D0/en
Publication of GB2431236A publication Critical patent/GB2431236A/en
Publication of GB2431236A8 publication Critical patent/GB2431236A8/en
Application granted granted Critical
Publication of GB2431236B publication Critical patent/GB2431236B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K17/00—Measuring quantity of heat
    • G01K17/003—Measuring quantity of heat for measuring the power of light beams, e.g. laser beams
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K17/00—Measuring quantity of heat
    • G01K17/06—Measuring quantity of heat conveyed by flowing media, e.g. in heating systems e.g. the quantity of heat in a transporting medium, delivered to or consumed in an expenditure device
    • G01K17/08—Measuring quantity of heat conveyed by flowing media, e.g. in heating systems e.g. the quantity of heat in a transporting medium, delivered to or consumed in an expenditure device based upon measurement of temperature difference or of a temperature
    • G01K17/20—Measuring quantity of heat conveyed by flowing media, e.g. in heating systems e.g. the quantity of heat in a transporting medium, delivered to or consumed in an expenditure device based upon measurement of temperature difference or of a temperature across a radiating surface, combined with ascertainment of the heat transmission coefficient
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
    • G01K7/02—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N25/00—Investigating or analyzing materials by the use of thermal means
    • G01N25/50—Investigating or analyzing materials by the use of thermal means by investigating flash-point; by investigating explosibility
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/52—Radiation pyrometry, e.g. infrared or optical thermometry using comparison with reference sources, e.g. disappearing-filament pyrometer
    • G01J5/53—Reference sources, e.g. standard lamps; Black bodies
    • G01J5/532—Reference sources, e.g. standard lamps; Black bodies using a reference heater of the emissive surface type, e.g. for selectively absorbing materials

Abstract

A device (10) for measuring the flux received by a specimen (12) in fire test apparatuses has a copper disk or plate of the same dimensions and the same type of surface coating (14) as a typical material specimen, an embedded heating coil (16) and thermocouple (18), and an insulated sample holder (20) similar to that used for a specimen. The transient response of the embedded thermocouple (18) is measured for several different levels of imposed incident radiation, from radiant heating apparatus (22), without electrical heating and for several different known levels of electrical heating without any imposed radiation. The principle of Electrical Substitution Radiometry (ESR) is applied, and the transient responses to incident radiation and electrical heating under identical thermal conditions are compared to determine the amount of incident radiation that is actually absorbed by the device while it is being irradiated. The situations are kept thermally identical thereby insuring that all effects due to heat losses (e.g. convection, radiation and conduction) are exactly the same.
GB0703415A 2005-04-08 2005-04-08 Device and method for measuring absorbed heat flux in a fire test apparatus Expired - Fee Related GB2431236B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2005/012184 WO2006110143A1 (en) 2005-04-08 2005-04-08 Radiant heat flux absorbed by coated test specimen

Publications (4)

Publication Number Publication Date
GB0703415D0 GB0703415D0 (en) 2007-04-04
GB2431236A true GB2431236A (en) 2007-04-18
GB2431236A8 GB2431236A8 (en) 2007-05-18
GB2431236B GB2431236B (en) 2009-12-16

Family

ID=37087325

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0703415A Expired - Fee Related GB2431236B (en) 2005-04-08 2005-04-08 Device and method for measuring absorbed heat flux in a fire test apparatus

Country Status (2)

Country Link
GB (1) GB2431236B (en)
WO (1) WO2006110143A1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4309901A (en) * 1979-12-18 1982-01-12 The United States Of America As Represented By The Secretary Of The Air Force Heat transfer calibration plate
US5161889A (en) * 1991-06-03 1992-11-10 Patentsmith Ii, Inc. Heat transfer rate target module

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4309901A (en) * 1979-12-18 1982-01-12 The United States Of America As Represented By The Secretary Of The Air Force Heat transfer calibration plate
US5161889A (en) * 1991-06-03 1992-11-10 Patentsmith Ii, Inc. Heat transfer rate target module

Also Published As

Publication number Publication date
GB2431236B (en) 2009-12-16
GB2431236A8 (en) 2007-05-18
GB0703415D0 (en) 2007-04-04
WO2006110143A1 (en) 2006-10-19

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20160602 AND 20160608

PCNP Patent ceased through non-payment of renewal fee

Effective date: 20170408