大型アンモニア低温吸収式冷凍設備の経済性評価

COPと設備費の経済性評価解析

抄録

NH₃-H₂O absorption refrigeration plant is attractive from each standpoint of electric power saving, non-fluorocarbon and energy saving.
The plant can be the economic alternative of power compression refrigeration for evaporation temperature range from 0°C to -60°C, using suitable waste heat (co-generation system, waste incinerator), oil and natural gas.
In the application of the plant, the equipment cost and the COP must be reasonable from economical standpoint. Therefore, the paper shows the following.
1) Necessary heating temparature analysis for absorption plant
2) Equipment cost analysis for heating temperature
3) Equipment cost analysis for COP
4) Number of trays in the rectifying column for COP
5) Equipment cost analysis and COP in two-stage absorption