Input/loss method for determining boiler efficiency of a fossil-fired system
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G06F-015/46
G06F-015/00
출원번호
US-0630853
(2000-08-02)
발명자
/ 주소
Lang, Fred D.
출원인 / 주소
Exergetic Systems LLC
대리인 / 주소
Hoenig, Gary
인용정보
피인용 횟수 :
11인용 특허 :
4
초록▼
The operation of a fossil-fueled thermal system is quantified by obtaining an unusually accurate boiler efficiency. Such a boiler efficiency is dependent on the calorimetric temperature at which the fuel's heating value is determined. This dependency affects the major thermodynamic terms comprising
The operation of a fossil-fueled thermal system is quantified by obtaining an unusually accurate boiler efficiency. Such a boiler efficiency is dependent on the calorimetric temperature at which the fuel's heating value is determined. This dependency affects the major thermodynamic terms comprising boiler efficiency.
대표청구항▼
The operation of a fossil-fueled thermal system is quantified by obtaining an unusually accurate boiler efficiency. Such a boiler efficiency is dependent on the calorimetric temperature at which the fuel's heating value is determined. This dependency affects the major thermodynamic terms comprising
The operation of a fossil-fueled thermal system is quantified by obtaining an unusually accurate boiler efficiency. Such a boiler efficiency is dependent on the calorimetric temperature at which the fuel's heating value is determined. This dependency affects the major thermodynamic terms comprising boiler efficiency. ght-hand wheels, one of a difference and a ratio between the characteristic amount of the right-hand front wheel and the characteristic amount of the right-hand rear wheel, and said left-hand wheels difference-value calculation component calculates, as the value of difference between left-hand wheels, one of a difference and a ratio between the characteristic amount of the left-hand front wheel and the characteristic amount of the left-hand rear wheel. 8. The apparatus for estimating tire air pressure according to claim 6, wherein said state determination component calculates, as a value of difference between right and left, one of a difference and a ratio between the value of difference between right-hand wheels and the value of difference between left-hand wheels, and, when a degree of difference between the value of difference between right-hand wheels, and the value of difference between left-hand wheels represented by the value of difference between right and left, is at least a predetermined value, said state determination component determines that the air pressure of a tire has been reduced. 9. The apparatus for estimating tire air pressure according to claim 6, wherein said state determination component calculates, as a value of difference between right and left, one of a difference and a ratio between the value of difference between right-hand wheels and the value of difference between left-hand wheels, and, when a degree of difference between the value of difference between right and left, and a predetermined reference value is at least a predetermined value, said state determination component determines that the air pressure of a tire has been reduced. 10. The apparatus for estimating tire air pressure according to claim 6, wherein the characteristic amount of the frequency characteristic of the wheel speed is an amount related to power in a predetermined frequency range of the wheel speed. 11. A method for estimating tire air pressure, comprising the steps of: (a) detecting wheel speed of each of a front wheel and a rear wheel; (b) calculating a characteristic amount of a frequency characteristic of each of the wheel speeds detected in said step (a); (c) calculating a value of difference which represents a degree of difference between a characteristic amount of the front wheel and a characteristic amount of the rear wheel, which characteristic amounts are calculated in said step (b); and (d) determining a state of air pressure of a tire based on the value of difference calculated in said step (c). 12. The method for estimating tire air pressure according to claim 11, wherein said step (c) comprises calculating, as the value of difference, one of a difference and a ratio between the characteristic amount of the front wheel and the characteristic amount of the rear wheel. 13. The method for estimating tire air pressure according to claim 11, wherein said step (d) comprises determining, when the degree of difference between the characteristic amount of the front wheel and the characteristic amount of the rear wheel represented by the value of difference is at least a predetermined value, that the air pressure of a tire has been reduced. 14. The method for estimating tire air pressure according to claim 11, wherein said step (d) comprises determining, when a degree of difference between the value of difference and a predetermined reference value is at least a predetermined value, that the air pressure of a tire has been reduced. 15. The method for estimating tire air pressure according to claim 11, wherein the characteristic amount of the frequency characteristic of the wheel speed is an amount related to power in a predetermined frequency range of the wheel speed. 16. A method for estimating tire air pressure, comprising the steps of: (a) detecting wheel speed of each of a right-hand front wheel, a right-hand rear wheel, a left-hand front wheel and a left-hand rear wheel; (b) calculating a characteris tic amount of a frequency characteristic of each of the wheel speeds detected in said step (a); (c) calculating a value of difference between right-hand wheels, which represents a degree of difference between a characteristic amount of the right-hand front wheel and a characteristic amount of the right-hand rear wheel, which characteristic amounts are calculated in said step (b); (d) calculating a value of difference between left-hand wheels, which represents a degree of difference between the characteristic amount of the left-hand front wheel and the characteristic amount of the left-hand rear wheel, which characteristic amounts are calculated in said step (b); and (e) determining a state of air pressure of a tire based on the value of difference between right-hand wheels and the value of difference between left-hand wheels. 17. The method for estimating tire air pressure according to claim 16, wherein said step (c) comprises calculating, as the value of difference between right-hand wheels, one of a difference and a ratio between the characteristic amount of the right-hand front wheel and the characteristic amount of the right-hand rear wheel, and said step (d) comprises calculating, as the value of difference between left-hand wheels, one of a difference and a ratio between the characteristic amount of the left-hand front wheel and the characteristic amount of the left-hand rear wheel. 18. The method for estimating tire air pressure according to claim 16, wherein said step (e) comprises calculating, as a value of difference between right and left, one of a difference and a ratio between the value of difference between right-hand wheels and the value of difference between left-hand wheels, and determining, when a degree of difference between the value of difference between the right-hand wheels and the value of difference between the left-hand wheels, represented by the value of difference between right and left is at least a predetermined value, that the air pressure of a tire has been reduced. 19. The method for estimating tire air pressure according to claim 16, wherein said step (e) comprises calculating, as a value of difference between right and left, one of a difference and a ratio between the value of difference between right-hand wheels, and the value of difference between left-hand wheels, and determining, when a degree of difference between the value of difference between right and left and a predetermined reference value is at least a predetermined value, that the air pressure of a tire has been reduced. 20. The method for estimating tire air pressure according to claim 16, wherein the characteristic amount of the frequency characteristic of the wheel speed is an amount related to power in a predetermined frequency range of the wheel speed.
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이 특허에 인용된 특허 (4)
Altemark Detlef (Dorsten DEX) Hess Robert (Essen DEX) Hillringhaus Karl H. (Bottrop DEX), Method and apparatus for the measurement of gas properties.
Cauger David M. (65 Main St. ; #10 Hudson MA 01749) Sanford Andrew (Beverly MA), Method of measuring changes in the energy transfer efficiency of a thermal transfer system.
Lang,Fred D., Input/Loss Method using the genetics of fossil fuels for determining fuel chemistry, calorific value and performance of a fossil-fired power plant.
Chandler, Christopher, Optimization of gas turbine combustion systems low load performance on simple cycle and heat recovery steam generator applications.
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