Card 1
Question
Rotational speed
Answer
U = ω · r = 2π · f · r
Discover Thermo 3 teil 2: 19 flashcards with questions and answers.
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Rotational speed
U = ω · r = 2π · f · r
Mass flow (velocity triangle)
m˙ = ρ · A · C_x
1st Law of Thermodynamics
W˙ − Q˙ = ˙m ( h1 − h2 + (v12−v22)/ρ + g (z1 − z2) )
Ideal Gas equations
pv = RT
p = ρRT
Thermal coefficients
R = cp − cv
γ = k = cp/cv
Specific Enthalpy of Gases
h = u + pv
Isentropic ideal gas equations T_2/T_1 to p

Isentropic ideal gas equations T_2/T_1 to v

Isentropic ideal gas equations p_2/p_1 to v

Isentr. turbine efficiency

Isentr. compressor efficiency

Thermal efficiency
ηthermal =W_out/Q_in
Ideal pump work

Isentropic Compression
h2 = h1 + v1 (p2 − p1)
Linear interpolation

Nassdampfanteil X
X = (s-s_f)/)s_g-s_f)
Nassdampfgebiet mit x interpolieren:
h = h_f + x(h_g-h_f)
const volume / pressure
h = c*T
Euler work
delta_h = U*delta C_theta
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