可用系數(shù)=可用小時(shí)/統(tǒng)計(jì)期間小時(shí)數(shù)×100% =7900.15/8760×100%=90.18%
通風(fēng)量極低保護(hù)定值=1233×25%=308.25(t/h)
供電燃燒成本=2177×240/4320000=0.1209[元/(kWh)]