電力逆潮を前提としたコージェネ地域冷暖房のシステム評価に関する研究 : ガスタービンコージェネのケーススタディー

概要

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This paper is one of the evaluation on D.H.C. (district heating and cooling) systems combined with cogeneration system with gas turbine, in which the system operation is made mainly based on heating requirements, rather than electric demands, and therefore, the surplus electric power from the D.H.C. plant is supplied back, in due course, to the power supply system of electric power company. The evaluation of the D.H.C. systems has been made quantitatively, through the case study making the effective use of "Design of Experiments" methods, concerning "energy conservation efficiency", "economical efficiency" and "environmental efficiency". Firstly, "energy conservation efficiency" has been evaluated on "system primary thermal annual efficiency", "system primary exergy annual efficiency" and "system annual availability ratio loss". Secondly, the evaluation of "economical efficiency" has been made on "annual system running cost". Thirdly, "environmental efficiency" has been also evaluated on "annual emmissions of CO_2, NO_x and SO_x. The case study has clarified as the results, that, in the reverse power supply system, both "energy conservation efficiency" and "environmental efficiency" become to be more highly evaluated in accordance with the increase of power generation capacity, while the optimum capacity suitable to the scale of D.H.C. acutually exists from the viewpoint of "economical efficiency".
社団法人日本建築学会の論文
1994-02-28