GB1056540A - Method of and apparatus for measurement of calorific values - Google Patents
Method of and apparatus for measurement of calorific valuesInfo
- Publication number
- GB1056540A GB1056540A GB4231163A GB4231163A GB1056540A GB 1056540 A GB1056540 A GB 1056540A GB 4231163 A GB4231163 A GB 4231163A GB 4231163 A GB4231163 A GB 4231163A GB 1056540 A GB1056540 A GB 1056540A
- Authority
- GB
- United Kingdom
- Prior art keywords
- furnace
- air
- fuel
- sample
- analyzer
- 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
- G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
- G01N31/12—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using combustion
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Combustion & Propulsion (AREA)
- Molecular Biology (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
1,056,540. Measuring thermal efficiency electrically. VYZKUMNEY USTAV ENERGETICKY OF PRAHA. Oct. 26, 1963, No.42311/63. Heading G1N. The calorific value of fuel supplied per unit time to a furnace 7 Fig. 1 (not shown), is measured in terms of the air required to burn it, the rate of air input to the furnace being measured by a flowmeter 3, 4 the output signal from which is combined with a signal representing the proportion of unburned air in the furnace exhaust gases, thus providing an indication of the amount of air actually burned. A sample of the gases and combustible remnants extracted at 9, from the furnace, is mixed in a constant ratio with a further air input, regulated by a valve 11 either manually or automatically, then fed to a heat exchanger 12, and completely burned in an oven 14. The exhaust from this oven 14 passes through a cyclone ash separator, 15 and is blown back into the furnace, a sample being taken via a junction 17 to an oxygen analyzer 18 which measures a quantity "α" defined as the ratio of the amount of air introduced into the furnace 7 to the actual amount of air required for complete burning of the fuel. The analyzer may be in the form of an oxygen sensitive inductor Z m , Fig.2 (not shown) with a centre-tapped iron-cored choke T, and a variable inductance Z o which sets the zero value for calibration purposes. If K is a constant representing the heat developed by a given fuel per unit weight of consumed air when the fuel is completely burned, and V is the flowmeter reading (3, 4), then the required calorific value, Q, is given by Q = K Î 1/α x V. The factor K is introduced at 20, and the signal representing V is delayed in unit 22 to allow for the time of passage of a sample from extractor 9 around the system to the analyzer 18, the output from the unit 19 then representing V Î 1/α. The unit 5 (Fig. 1) compensates the flowmeter reading for any temperature variations in the input conditions to the furnace. The furnace may burn liquid, pulverized, or gaseous fuel.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4231163A GB1056540A (en) | 1963-10-26 | 1963-10-26 | Method of and apparatus for measurement of calorific values |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4231163A GB1056540A (en) | 1963-10-26 | 1963-10-26 | Method of and apparatus for measurement of calorific values |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1056540A true GB1056540A (en) | 1967-01-25 |
Family
ID=10423875
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4231163A Expired GB1056540A (en) | 1963-10-26 | 1963-10-26 | Method of and apparatus for measurement of calorific values |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1056540A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0323658A2 (en) * | 1987-12-05 | 1989-07-12 | N.V. Nederlandse Gasunie | Method for determining the wobbe number of a gas mixture |
EP0326494A1 (en) * | 1988-01-29 | 1989-08-02 | Gaz De France (Service National) | Apparatus for measuring the calorific power carried by a flow of combustible matter |
CN111289683A (en) * | 2020-03-05 | 2020-06-16 | 内蒙古汇能集团长滩发电有限公司 | Thermal power pulverized coal combustion efficiency detection system |
-
1963
- 1963-10-26 GB GB4231163A patent/GB1056540A/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0323658A2 (en) * | 1987-12-05 | 1989-07-12 | N.V. Nederlandse Gasunie | Method for determining the wobbe number of a gas mixture |
EP0323658A3 (en) * | 1987-12-05 | 1990-06-13 | N.V. Nederlandse Gasunie | Method for determining the wobbe number of a gas mixture |
EP0326494A1 (en) * | 1988-01-29 | 1989-08-02 | Gaz De France (Service National) | Apparatus for measuring the calorific power carried by a flow of combustible matter |
FR2626673A1 (en) * | 1988-01-29 | 1989-08-04 | Gaz De France | METHOD AND DEVICE FOR MEASURING THE HEAT POWER OF A VEHICLE BY A FUEL CURRENT |
JPH01233355A (en) * | 1988-01-29 | 1989-09-19 | Gaz De France | Method and apparatus for measuring heating value of fluid fuel |
JP2792881B2 (en) | 1988-01-29 | 1998-09-03 | ガーズ、ド、フランス | Method and apparatus for measuring calorific value of fluid fuel |
CN111289683A (en) * | 2020-03-05 | 2020-06-16 | 内蒙古汇能集团长滩发电有限公司 | Thermal power pulverized coal combustion efficiency detection system |
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