蓄熱を考慮したコージェネレーションシステムの省エネルギー性に関する研究

概要

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To obtain more energy-conserving effect with cogeneration system, which has the problem caused by imbalance between heat consumption and electric power consumption, this study propose a cogeneration system equipped with thermal storage tank for a building and/or District Heating and Cooling. As the result of this study, 1) A energy flow chart for the system is set up. 2) Through a theoretical computation on gas-engine cogeneration system, a maximum energy-conserving effect is gained where the heat power ratio is over 1.25 and also over 25% of insufficient heat consumption is supplied from thermal storage tank. And the thermal storage makes the range of the heat power ratio, where the energy-conserving effect is negative, narrower. 3) Through a simulation of 3 representative DHCs in Tokyo Metropolitan area, the thermal storage makes the heat power ratio's standard deviation smaller, and the bigger the capacity of cogeneration and/or thermal storage, the more the energy-conserving effect is expected, but in complex district and residential district, if the regeneration's capacity is comparatively smaller, the thermal storage effect is negligible.
社団法人日本建築学会の論文
1994-12-30