GB1103361A - Calorimeter apparatus - Google Patents

Calorimeter apparatus

Info

Publication number
GB1103361A
GB1103361A GB1360966A GB1360966A GB1103361A GB 1103361 A GB1103361 A GB 1103361A GB 1360966 A GB1360966 A GB 1360966A GB 1360966 A GB1360966 A GB 1360966A GB 1103361 A GB1103361 A GB 1103361A
Authority
GB
United Kingdom
Prior art keywords
gas
pipe
calorific value
burner
variations
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
GB1360966A
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.)
HARRY BOLLING BREEDLOVE
Original Assignee
HARRY BOLLING BREEDLOVE
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 HARRY BOLLING BREEDLOVE filed Critical HARRY BOLLING BREEDLOVE
Priority to GB1360966A priority Critical patent/GB1103361A/en
Publication of GB1103361A publication Critical patent/GB1103361A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G01N25/20—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity
    • G01N25/22—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on combustion or catalytic oxidation, e.g. of components of gas mixtures
    • G01N25/28—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on combustion or catalytic oxidation, e.g. of components of gas mixtures the rise in temperature of the gases resulting from combustion being measured directly
    • G01N25/34—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on combustion or catalytic oxidation, e.g. of components of gas mixtures the rise in temperature of the gases resulting from combustion being measured directly using mechanical temperature-responsive elements, e.g. bimetallic
    • G01N25/36—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on combustion or catalytic oxidation, e.g. of components of gas mixtures the rise in temperature of the gases resulting from combustion being measured directly using mechanical temperature-responsive elements, e.g. bimetallic for investigating the composition of gas mixtures
    • 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
    • G01K17/10—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 between an inlet and an outlet point, combined with measurement of rate of flow of the medium if such, by integration during a certain time-interval

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)

Abstract

1,103,361. Measuring calorific value electrically. H.B. BREEDLOVE. March 28, 1966, No.13609/66. Heading G1N. The calorific value of combustible gas fed through a pipe 17, Fig. 1, to a burner 12 is measured by automatically controlling at 15 the flow by means of a valve 16 to maintain constant the temperature differential between thermocouples 13, 14 which measure respectively the temperatures of the combustion products and of the air supply 18, the thermal input rate to the burner being thereby maintained constant; and by measuring the variations in gas flow-rate with a flowmeter 21, this being inversely proportional to the calorific value of the gas. A greater accuracy of measurement is achieved by controlling the air supply to the burner by means of an arrangement Fig. 2 (not shown) which allows for variations of absolute temperature and pressure. In order to maintain a constant rate of thermal input to a large gas furnace (51), Fig. 3 (not shown) irrespective of variations in calorific value of the gas supply (41), a sample of the gas is taken (43) to a measuring arrangement as described, the output of the flowmeter (21) of which is used (47) to control the flow of gas in the main supply pipe (42) to the furnace (51). The main gas flow is further controlled by a thermocouple (49) associated with a heat exchanger (52) in the furnace so that long term constancy of the furnace temperature is achieved. The rate of thermal input may be indicated, alternatively, by an arrangement Fig. 4 (not shown), in which a sample of the gas in the main pipe (60) is taken to a measuring arrangement as described, the output signal (67) of which is mathematically divided (at 63) into a signal from a differential pressure gauge (68) situated across an aperture in the main pipe (60) representing mass flow of the gas therein. The result of the dividing operation is square rooted (at 64), to allow for the square law characteristics of the flowmeters (66, 68) and the output represents, for example, B.T.U. per minute. In a further embodiment Fig. 5 (not shown) variations in calorific value of a test gas in a pipe (84) are measured by detecting the change in flowrate of a known gas, such as methane, flowing in a second pipe (83), required to maintain a constant rate of thermal input to a burner (12) to which the two gases are supplied after being mixed (at 82).
GB1360966A 1966-03-28 1966-03-28 Calorimeter apparatus Expired GB1103361A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1360966A GB1103361A (en) 1966-03-28 1966-03-28 Calorimeter apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1360966A GB1103361A (en) 1966-03-28 1966-03-28 Calorimeter apparatus

Publications (1)

Publication Number Publication Date
GB1103361A true GB1103361A (en) 1968-02-14

Family

ID=10026149

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1360966A Expired GB1103361A (en) 1966-03-28 1966-03-28 Calorimeter apparatus

Country Status (1)

Country Link
GB (1) GB1103361A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL2010064C2 (en) * 2012-12-27 2014-06-30 Berkin Bv DEVICE AND METHOD FOR DETERMINING THE BURNING VALUE OF A FUEL.

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL2010064C2 (en) * 2012-12-27 2014-06-30 Berkin Bv DEVICE AND METHOD FOR DETERMINING THE BURNING VALUE OF A FUEL.
WO2014104889A1 (en) * 2012-12-27 2014-07-03 Berkin B.V. Device and method for determining the combustion value of a fuel
CN105026920A (en) * 2012-12-27 2015-11-04 伯金有限公司 Device and method for determining the combustion value of a fuel
RU2635843C2 (en) * 2012-12-27 2017-11-16 Беркин Б.В. Device and method for determining fuel combustion heat
US9857321B2 (en) 2012-12-27 2018-01-02 Berkin B.V. Device and method for determining the combustion value of a fuel

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