turbinaning effektiv f.i.k.lari
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1.49 – masala. agar turbina oldidagi bug’ parametrlari p0 = 3,4 mpa, t0 = 440 °с , turbinadan keyin esa p2 = 0,4 mpa, t2 = 220 °с va turbinaning mexanik f.i.k.i ηm = 0,98 ga teng bo’lsa turbinaning ichki nisbiy va effektiv f.i.k.larini aniqlang. javob: ηni = 0,77; ηne = 0,755. 1.50 – masala. agar turbina oldidagi bug’ parametrlari p0 = 4,0 mpa, t0 = 390 °с , turbinadan keyin esa p2 = 1,0 mpa, t2 = 240 °с , turbinaning mexanik f.i.k.i ηm = 0,97 ga va elektrogenerator f.i.k. ηg = 0,95 ga teng bo’lsa turbogeneratorning nisbiy elektrik f.i.k.ini aniqlang. javob: ηn.el = 0,71. 1.51 – masala. turbinani sinovi paytida uning oldidagi bug’ parametrlari p0 = 3,5 mpa, …
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