"f1w1" - 1 õppematerjal

Soojustehnika

pv = RT. m. Vid >Vrg. (tõukejõud) , . n . h > ho ( b), h. , 200. . ( p + a /v2) ( v ­ b) = RT ( 1 - 53 ) a b - vk = 3b pk = a/ 27 b2 ( 1 ­ 57) Tk = (8/27 ) ( a/ bR) a = (27/64 ) (RTk)2/pk b = 1/8 (RTk/ pk) ( 1 ­ 58) 16 . ?( . ?) (kg/s) , I-I II-II : M = F1W1/v1 = F2W2/v2 (5-1) F1 F2 ­ I-I II-II. (5-1) , : M = FW/v = FW = const ( 5-2) (5-2) - . 17. ? . ?( . .) ­ , () () . 1-2 ( ), J/kg : (6.1) W ­ m/s, p ­ Pa, h ­ J/kg, ­ kg/m3 ( e . v = 1/ m3/kg) . 6.1 h-s - p/k = pvk = const v ­ J/(kgK), k = cp/cv - T ­ , R - . J/(kgK) , ,,t" - ( ) 1 -2, J/kg 18. . ( ). ( . ?) . 9.2