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《Journal of Southeast University(Natural Science Edition)》 1982-02
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Dynamic CaIculation of a Natural Circulation BoiIer and Discussion about Its Variable Pressure Operation

Chang Chen-yueh, Fan Chong-yuan, and Li Bao-qin  
Taking a 200MW unit with a natural-circulation boiler as an example, this paper presents a model of boiler dynamics.Based upon the results of calcul-ation on a digital computer, the transient behaviors of the unit are discussed.For a step change in fuel flow rate only, the steam pressure and turbine out-put respond very slowly.But the rate of change in stearin temperature in the transient process may be dangerous for certain thick-walled elements.The situ-ation can be improved to a large extent by a simultaneous change in the tur-bine governor valve position.It is suggested that all these facts should be consi-dered for a natural circulation boiler to be operated in the variable-pressure mode.
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【References】
Chinese Journal Full-text Database 3 Hits
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【Co-references】
Chinese Journal Full-text Database 10 Hits
1 Wang Guangjun (Department of Thermal Power Engineering,NortheastChina Institute of Electric Power Engineering,Jilin city 132012)Wu Jingxing(Postgraduate Department,Northeast china Institute of Electric Power Engineering,Jilin city 132012)Wan;Dynamic Mathematical Model of Boiler's Air-flue Gas System and Analysis of Implosion Process in Furnace Chamber[J];JOURNAL OF NORTHEAST CHINA INSTITUTE OF ELECTRIC POWER ENGINEERING;1997-04
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【Secondary References】
Chinese Journal Full-text Database 1 Hits
1 Zheng Jianxue, Chen Tingkuan, Chen Xuejun, Yang Dong(Xian Jiaotong University, Xi'an 710049 );DYNAMIC THERMALHYDRAULIC MODELS FOR SINGLEPHASE HEATED TUBES[J];Advances In Mechanics;1997-04
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