燃气轮机热效率(thermal efficiency ofgas turbine)
燃气轮机热效率(thermal efficiency ofgas turbine)
相关考题:
在燃气轮机的压气机压缩比一定时,()。A、燃烧室温度越高,则燃气轮机热效率越高B、燃烧室温度越高,则燃气轮机热效率越低C、燃烧室压力越大,则燃气轮机热效率越高D、燃烧室压力越大,则燃气轮机热效率越低
评估燃气轮机在设计预定运行条件下的主要性能参数有()。A、年平均气象参数条件下燃气轮机额定功率;B、热效率或热耗率;C、月最低平均气象参数下燃气轮机保证的连续功率;D、月最高平均气象参数下燃气轮机保证的连续功率。
下列有关热效率和比功的说法中,有误的一项是:()A、热效率和比功是两个衡量燃气轮机性能好坏的技术特性指标。B、热效率越高,机组就可以少用燃料。C、比功越小,同功率机组的尺寸就可以做得较小。D、设计燃气轮机时,应力争提高热效率和比功。
单选题在燃气轮机的压气机压缩比一定时,()。A燃烧室温度越高,则燃气轮机热效率越高B燃烧室温度越高,则燃气轮机热效率越低C燃烧室压力越大,则燃气轮机热效率越高D燃烧室压力越大,则燃气轮机热效率越低
单选题The ash content of a fuel oil is significant to the operating engineer because it ()Ais an indication of the amount of noncombustible material present in the oilBindicates the quantity of energy released by burning a unit amount of the fuelCis useful for determining proper atomization temperaturesDreflects the overall thermal efficiency of the fuel oil service system
单选题The ratio of the brake horsepower to the indicate of a diesel engine is its ()Athermal efficiencyBmechanical efficiencyCbrake thermal efficiencyDvolumetric efficiency
单选题Which of the following equipment can not be used for the waste heat recovery of the M/E to further improve its thermal efficiency?()AM/E turbochargerBexhaust gas boilerCincineratorDfresh water generator
单选题下列有关热效率和比功的说法中,有误的一项是:()A热效率和比功是两个衡量燃气轮机性能好坏的技术特性指标。B热效率越高,机组就可以少用燃料。C比功越小,同功率机组的尺寸就可以做得较小。D设计燃气轮机时,应力争提高热效率和比功。
单选题F级燃气轮机联合循环(不供热)整体热效率约为()。A68%B58%C48%D38%