POWER TRANSMISSION END THERMAL EFFICIENCY PREDICTION METHOD ACHIEVABLE AT POWER GENERATION PLANT

To provide a power transmission end thermal efficiency prediction method that is achievable at a power generation plant and that derives, by a calculation of a thermal balance among various equipment items ranging from a fuel of the power generation plant to a power transmission end thereof, a combi...

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Bibliographische Detailangaben
Hauptverfasser:	SASAKI SHUNSUKE, OTAKA HIDEO
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	BLASTING ENGINE PLANTS IN GENERAL ENGINE PLANTS NOT OTHERWISE PROVIDED FOR ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING METHODS OF STEAM GENERATION NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES STEAM ACCUMULATORS STEAM BOILERS STEAM ENGINE PLANTS STEAM ENGINES STEAM GENERATION WEAPONS
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Beschreibung
Zusammenfassung:	To provide a power transmission end thermal efficiency prediction method that is achievable at a power generation plant and that derives, by a calculation of a thermal balance among various equipment items ranging from a fuel of the power generation plant to a power transmission end thereof, a combination of auxiliary machinery output conditions such as a fan output and a circulating pump output of a cooling tower to improve power transmission end thermal efficiency.SOLUTION: In a power transmission end thermal efficiency prediction method achievable at a power generation plant 1 comprising primary machinery 13 including a generator and the like and auxiliary machinery including a cooling tower 15 and the like, conditions at which the power transmission end thermal efficiency will be maximum are computed on the basis of: a steam generation amount or fuel usage amount of a boiler 11; and a thermal balance calculation required to set the operating conditions of the auxiliary machinery.SELECTED DRAWING: Figure 1 【課題】発電プラントの燃料から送電端までの各設備における熱収支の計算より、送電端熱効率が改善される冷却塔のファン出力、循環ポンプの出力等の補機出力条件の組み合わせを導く発電プラントで実現可能な送電端熱効率の予測方法を提供する。【解決手段】発電機等含む主機１３と冷却塔１５等を含む補機とを備える発電プラント１で実現可能な送電端熱効率の予測方法であって、ボイラー１１における蒸気発生量または燃料使用量と、前記補機の運転条件設定に必要な熱収支計算とから、送電端熱効率が最大となる条件を算出する。【選択図】図１