1. Joint 19th IHPC and 13th IHPS, Pisa, Italy, June 10-14, 2018 PAPER N°: _ _ _ _ _
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First Author1, Second Author2, Third Author3
1 University of Pisa, Energy Systems Territory and Construction Department (DESTeC), Largo Lazzarino 2, Pisa, Italy
2 ………
3 ………………
AIM:
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EXPERIMENTAL SET UP:
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Figure 1 shows the test cell sketch and thermocouples location.
Figure 1. All labels in the sketch should be readable. Figures should be quoted in the text
NUMERICAL MODEL:
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Figure 2. All labels and symbols in the plots should be readable.
All equations should be numbered and quoted in the text.
Table 1. Code input parameters.
Input parameter
Value
Working fluid
FC-72
Tube material
Copper
Internal diameter
1.1 mm
External diameter
2 mm
Surface roughness
50 μm
Evaporator length
6 mm
Condenser length
180 mm
Filling ratio
0.5
Gravity acceleration
1g, 2g, 10g
External temperature
20 °C
External HTC
300 W/m2K
Heat power
50 W
𝑓 𝑥 = 𝑎 0 + 𝑛=1 ∞ 𝑎 𝑛 cos 𝑛𝜋𝑥 𝐿 + 𝑏 𝑛 sin 𝑛𝜋𝑥 𝐿
(1)
RESULTS:
The simulated pseudo-steady state values in term of temperature and pressure are closed to the ones experimentally observed (max error < 10°C) as shown in figure 2.
Equation (1) is the Fourier Series of the function f(x).
CONCLUSIONS:
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