CO-GENERATION SYSTEM

• Main Authors: SUZUKI MINORU, YAMAKI TOSHIO
• Format: Patent
• Language: English; Japanese
• Published: 20.12.2018
• Subjects: BASIC ELECTRIC ELEMENTS; BLASTING; ELECTRICITY; FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEATGENERATING MEANS, IN GENERAL; HEATING; LIGHTING; MECHANICAL ENGINEERING; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; RANGES; VENTILATING; WEAPONS

To provide a co-generation system which can achieve water self-sufficiency while increasing heat recovery amount, without requiring a large cost.SOLUTION: A co-generation system includes a modification part 4, a solid oxide fuel cell part 1, a heat recovery part H having a thermal storage tank 63 storing a heat transfer medium, and recovering heat from exhaust fuel gas, by heat-exchanging the exhaust fuel gas exhausted from an anode after used for power generation reaction in the fuel cell part 1 and the heat transfer medium of the thermal storage tank 63, a water recovery part 14 for recovering condensate water contained in the exhaust fuel gas after heat is recovered in the heat recovery part H, a combustion part 5 for combusting fuel component in the exhaust fuel gas after the condensate water is recovered, and a heat transfer medium supply path 65 for supplying the heat transfer medium of the thermal storage tank 63 to the heat utilization device side. The condensate water is used for steam modification of raw fuel in the modification part 4, and combustion heat generated in the combustion part 5 is used for steam modification in the modification part 4.SELECTED DRAWING: Figure 1 【課題】熱回収量を高めると共に水自立を達成するために大きなコストを必要としないコジェネレーションシステムを提供する。【解決手段】コジェネレーションシステムが、改質部４と、固体酸化物形の燃料電池部１と、熱媒体を貯えている蓄熱タンク６３を有し、燃料電池部１での発電反応で用いられた後にアノードから排出される排出燃料ガスと蓄熱タンク６３の熱媒体とを熱交換させることで、排出燃料ガスから熱を回収する熱回収部Ｈと、熱回収部Ｈで熱が回収された後の排出燃料ガスに含まれる凝縮水を回収する水回収部１４と、凝縮水が回収された後の排出燃料ガス中の燃料成分を燃焼させる燃焼部５と、蓄熱タンク６３の熱媒体を熱利用装置側に供給する熱媒体供給路６５とを備え、凝縮水が改質部４での原燃料の水蒸気改質に用いられ、燃焼部５で発生した燃焼熱が改質部４での水蒸気改質に利用される。【選択図】図１