[紧急]Boilers and generation efficiency

现今常用的 coal-fired boilers 是 supercrtical boilers
而steam conditions --〉tempeature大概是 540degree celcius
                       pressure大概是 24.1MPa (absolute)

另外，据说latest-generation boiler是ultra-supercritical boiler(USCB)
而steam conditions --〉tempeature大概是 600degree celcius
                       pressure大概是 30.5MPa (absolute)

如果题目how do the steam conditions in our current boiler compare with those in latest-generation boilers for power generation? how does this effect generation efficiency?

请问
how does this effect generation efficiency 须怎样回答？

我的答案是因为USCB的steam conditions，
T,P都很高，所以必须设法maintain,因此BOILERS的设计（大小，所用的MATERIALS等）而间接影响 energy efficiency

请问这样有回答道题目吗？
还是因为high T & P,就会使到energy efficiency 增加？？

谢谢