From: Industrial dry spinning processes: algorithmic for a two-phase fiber model in airflows
Physical parameters | |||
---|---|---|---|
Description | Symbol | Value | Unit |
CA density | \(\rho _{p}^{0}\) | 1300 | kg/m3 |
Acetone density | \(\rho _{d}^{0} \) | 767 | kg/m3 |
CA spec. heat cap. | \(q_{p}^{0}\) | 1600 | J/(kg K) |
Acetone spec. heat cap. | \(q_{d}^{0} \) | 2160 | J/(kg K) |
Molec. weight acetone | \(M_{d} \) | 5.81⋅10−2 | kg/mol |
Molec. weight air | \(M_{\star }\) | 2.90⋅10−3 | kg/mol |
Molar volume acetone | \(V_{d} \) | 6.60⋅10−5 | m3/mol |
Molar volume air | \(V_{\star }\) | 2.01⋅10−5 | m3/mol |
Setup-specific reference values | |
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Description | Formula |
Mass line density | \(\varrho _{M,0}=\rho (c_{\mathrm{in}})R_{\mathrm{in}}^{2}\pi \) |
Curve | \(r_{0}=H\) |
Diameter | \(d_{0}=2R_{\mathrm{in}}\) |
Velocity | \(v_{0}=u_{\mathrm{in}}\) |
Viscosity | \(\mu _{0}=\mu (c_{\mathrm{in}},T_{\mathrm{in}})\) |
Spec. heat cap. | \(q_{0}=q(c_{\mathrm{in}})\) |
Thermal cond. | \(C_{0}=C_{\mathrm{const}}\) |
Diffusivity | \(D_{0}=D(c_{\mathrm{in}},T_{\mathrm{in}})\) |
Take up speed | \(u_{\mathrm{out},0}=u_{\mathrm{out}}\) |
Further scales | \(b_{0}=b_{\mathrm{in}}\), \(b \in \{T,\alpha ,\gamma ,p_{\star }, \lambda _{\star },\nu _{\star },q_{\star },\rho _{\star },D_{d,\star }\}\) |