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[主观题]
某电厂的汽轮发电机组功率为200MW,锅炉的燃料消耗量为100t/h,其燃料发热量为22000KJ/㎏,试求汽轮发电机组将热能转变为电能的效率η。
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![](https://static.youtibao.com/asksite/comm/h5/images/solist_ts.png)
2F12.80.26P0.0015PG1G1(T/h)2F23.50.29P0.0015PG2G2(T/h)
2F34.00.17PG30.0015PG3(T/h)
机组功率约束条件为:
20MWPG150MW
20MWPG2100MW20MWPG3100MW
当负荷功率为200MW时机组间负荷的最优分配为()。
A.PG150MW、PG255MW、PG395MW
B.PG140MW、PG280MW、PG380MW
C.PG150MW、PG275MW、PG375MW
D.PG160MW、PG250MW、PG390MW