Material Properties: Polystyrene
Data Available:
- Thermal Conductivity
- Specific Heat
- Linear Expansion
Thermal Conductivity density: 31.88 kg/m3 (=1.99 lb/ft3 Freon filled ) |
Thermal Conductivity
density: 32.04 kg/m3 (=2.0 lb/ft3) |
Thermal Conductivity density: 49.98 kg/m3 (=3.12 lb/ft3) |
Thermal Conductivity density: 99.96 kg/m3 (=6.24 lb/ft3) |
|
| UNITS | W/(m-K) | W/(m-K) | W/(m-K) | W/(m-K) |
| a | -1557.5 | -1145.45 | -1.5194 | 7.39582 |
| b | 3984.7 | 4086.02 | -4.6449 | -59.6737 |
| c | -3940.245 | -6234.293 | 11.643 | 160.58 |
| d | 1649.668 | 5260.106 | -15.969 | -240.33 |
| e | 12.80097 | -2649.914 | 12.722 | 218.817 |
| f | -294.2616 | 797.0372 | -5.821 | -124.155 |
| g | 119.5898 | -132.5244 | 1.4174 | 42.9088 |
| h | -20.6301 | 9.3968 | -0.14128 | -8.26683 |
| i | 1.36067 | 0 | 0 | 0.68082 |
data range |
90-300 | 33-300 | 7-300 | 4-300 |
equation range |
90-300 | 25-300 | 4-300 | 4-300 |
curve fit % error relative to data |
2 | 2 | 2 | 3 |
| Curve fit equation of the form: log10 y = a+b(log10T) + c(log10T) 2 + d(log10T) 3 + e(log10T) 4 + f(log10T) 5 + g(log10T) 6 + h(log10T) 7 + i(log10T) 8 Solves as: y = 10 a+b(log10T) + c(log10T) 2 + d(log10T) 3 + e(log10T) 4 + f(log10T) 5 + g(log10T) 6 + h(log10T) 7 + i(log10T) 8 Where: Coefficients a - i are summarized in the appropriate table and T is the temperature in K (x-axis), and y is the property to solve for. |
Specific Heat density: 99.96 kg/m3 (=6.24 lb/ft3) |
Specific Heat density: 9.93 kg/m3 (=.062 lb/ft3) |
Specific Heat density: 60.07 kg/m3 (=3.75 lb/ft3) |
|
| UNITS | J/(kg-K) | J/(kg-K) | J/(kg-K) |
| a | -5911.474 | -734.172 | 2139.33 |
| b | 14991.16 | 1163.613 | -6518.015 |
| c | -15513.753 | -135.157 | 9650.919 |
| d | 8232.5666 | -878.514 | -9229.889 |
| e | -2237.3586 | 791.787 | 6104.0571 |
| f | 225.423 | -308.6236 | -2739.14 |
| g | 20.33505 | 58.6764 | 784.878 |
| h | -4.6169 | -4.4494 | -128.40103 |
| i | 0 | 0 | 9.08405 |
data range |
100-300 | 100-300 | 100-300 |
equation range |
90-300 | 90-300 | 80-300 |
curve fit % error relative to data |
1 | 1.5 | 1 |
| Curve fit equation of the form: log10 y = a+b(log10T) + c(log10T) 2 + d(log10T) 3 + e(log10T) 4 + f(log10T) 5 + g(log10T) 6 + h(log10T) 7 + i(log10T) 8 Solves as: y = 10 a+b(log10T) + c(log10T) 2 + d(log10T) 3 + e(log10T) 4 + f(log10T) 5 + g(log10T) 6 + h(log10T) 7 + i(log10T) 8 Where: Coefficients a - i are summarized in the appropriate table and T is the temperature in K (x-axis), and y is the property to solve for. |
| Linear expansion density: 51.42 kg/m3 (=3.21 lb/ft3) |
Linear expansion density: 51.42 kg/m3 (=3.21 lb/ft3) |
Linear expansion density: 102.2 kg/m3 (=6.38 lb/ft3) |
Linear expansion density: 102.2 kg/m3 (=6.38 lb/ft3) |
|
.Units |
[(L-L293)/L293] x 105 unitless, eg. m/m | [(L-L293)/L293] x 105 unitless, eg. m/m | [(L-L293)/L293] x 105 unitless, eg. m/m | [(L-L293)/L293] x 105 unitless, eg. m/m |
a |
-1.6948E3 | -2.1168E3 | -1.7494E3 | -1.9374E3 |
b |
-9.6845E-1 | 1.0963E1 | 2.0607E0 | 3.6139E0 |
c |
7.8268E-2 | -3.5335E-2 | -4.7467E-2 | 3.5974E-2 |
d |
-2.4831E-4 | 1.3552E-4 | 1.2156E-3 | -1.5164E-4 |
e |
0 | -1.9890E-7 | -5.4405E-6 | 2.1764E-7 |
Tlow (K) |
6.4 | NA | NA | NA |
f> |
-1697.9 | NA | NA | NA |
data range (K) |
4-300 | 4-300 | 4-300 | 4-300 |
equation range (K) |
4-105 | 105-278 | 4-102 | 102-286 |
curve fit % error relative to data |
1 | 1 | 1 | 2 |
| equation of the form: | |
y = a + bT + cT 2 + dT 3 + eT 4 |
>T > Tlow |
y = f |
T < Tlow |
| solves as expected: Where: Coefficients a-e are summarized in the appropriate table and T is the temperature in K (x-axis), and y is the property to solve for. | |