GB1103361A - Calorimeter apparatus - Google Patents
Calorimeter apparatusInfo
- 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
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).
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)
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. |
-
1966
- 1966-03-28 GB GB1360966A patent/GB1103361A/en not_active Expired
Cited By (5)
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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