```
In [17]:
```from ht import *
import matplotlib.pyplot as plt
from math import *
% matplotlib inline
import numpy as np
from scipy.interpolate import *

```
In [16]:
```%timeit Ft_aircooler(Thi=125., Tho=45., Tci=25., Tco=95., Ntp=1, rows=4)

```
```

```
In [3]:
```%timeit Rohsenow(Te=4.9, Cpl=4217., kl=0.680, mul=2.79E-4, sigma=0.0589, Hvap=2.257E6, rhol=957.854, rhog=0.595593, Csf=0.011, n=1.26)*4.9

```
```

```
In [4]:
```%timeit Stephan_Abdelsalam(Te=16.2, Tsat=437.5, Cpl=2730., kl=0.086, mul=156E-6, sigma=0.0082, Hvap=272E3, rhol=567, rhog=18.09, angle=35, correlation='hydrocarbon')

```
```

```
In [5]:
```%timeit Serth_HEDH(D=0.0127, sigma=8.2E-3, Hvap=272E3, rhol=567, rhog=18.09)

```
```

```
In [6]:
```%timeit Nusselt_laminar(Tsat=370, Tw=350, rhog=7.0, rhol=585., kl=0.091, mul=158.9E-6, Hvap=776900, L=0.1)

```
```

```
In [7]:
```%timeit Boyko_Kruzhilin(m=100, rhog=6.36, rhol=582.9, kl=0.098, mul=159E-6, Cpl=2520., D=0.03, x=0.85)

```
```

```
In [8]:
```%timeit S_isothermal_pipe_eccentric_to_isothermal_pipe(.1, .4, .05, 10)

```
```

```
In [9]:
```%timeit Nu_cylinder_Zukauskas(7992, 0.707, 0.69)

```
```

```
In [10]:
```%timeit Nu_cylinder_Whitaker(6071, 0.7)

```
```

```
In [11]:
```%timeit Nu_vertical_cylinder(0.72, 1E7, Method='McAdams, Weiss & Saunders')
%timeit Nu_vertical_cylinder(0.72, 1E7)

```
```

```
In [12]:
```%timeit Nu_horizontal_cylinder(0.72, 1E7)
%timeit Nu_horizontal_cylinder(0.72, 1E7, Method='Morgan')
%timeit Nu_horizontal_cylinder(0.72, 1E7, Method='Churchill-Chu')

```
```

```
In [13]:
```%timeit laminar_T_const()
%timeit 3.66

```
```

```
In [14]:
```%timeit Nu_conv_internal(Re=1E5, Pr=1.2, fd=0.0185, eD=1E-3)
%timeit Nu_conv_internal(Re=1E5, Pr=1.2, fd=0.0185, eD=1E-3, AvailableMethods=True)
print Nu_conv_internal(Re=1E5, Pr=1.2, fd=0.0185, eD=1E-3, AvailableMethods=True)

```
```

```
In [15]:
```%timeit Lehrer(m=2.5, Dtank=0.6, Djacket=0.65, H=0.6, Dinlet=0.025, dT=20., rho=995.7, Cp=4178.1, k=0.615, mu=798E-6, muw=355E-6)
%timeit Lehrer(m=2.5, Dtank=0.6, Djacket=0.65, H=0.6, Dinlet=0.025, dT=20., rho=995.7, Cp=4178.1, k=0.615, mu=798E-6, muw=355E-6, inlettype='radial', isobaric_expansion=0.000303)

```
```

```
In [16]:
```%timeit Nu_packed_bed_Gnielinski(dp=8E-4, voidage=0.4, vs=1, rho=1E3, mu=1E-3, Pr=0.7)

```
```

```
In [17]:
```%timeit dP_Kern(m=11., rho=995., mu=0.000803, mu_w=0.000657, DShell=0.584, LSpacing=0.1524, pitch=0.0254, Do=.019, NBaffles=22)
%timeit dP_Zukauskas(Re=13943., n=7, ST=0.0313, SL=0.0343, D=0.0164, rho=1.217, Vmax=12.6)
%timeit dP_Zukauskas(Re=13943., n=7, ST=0.0313, SL=0.0313, D=0.0164, rho=1.217, Vmax=12.6)

```
```

```
In [18]:
```%timeit LMTD(100., 60., 30., 40.2)
%timeit LMTD(100., 60., 30., 40.2, counterflow=False)

```
```

```
In [21]:
```%timeit [[Ntubes_Perrys(DBundle=1.184, Ntp=i, do=.028, angle=j) for i in [1,2,4,6]] for j in [30, 45, 60, 90]]
%timeit [[Ntubes_VDI(DBundle=1.184, Ntp=i, do=.028, pitch=.036, angle=j) for i in [1,2,4,8]] for j in [30, 45, 60, 90]]
%timeit [Ntubes_Phadkeb(DBundle=1.200-.008*2, do=.028, pitch=.036, Ntp=i, angle=45.) for i in [1,2,4,6,8]]

```
```

```
In [2]:
```from ht.insulation import ASHRAE_k, ASHRAE, materials_dict
%timeit [ASHRAE_k(ID) for ID in ASHRAE]
print len(ASHRAE)

```
```

```
In [13]:
```a = 'Bitumen'
print nearest_material(a)
%timeit nearest_material(a)

```
```

```
In [15]:
```%timeit blackbody_spectral_radiance(800., 4E-6)
%timeit q_rad(.85, 400, 305.)

```
```