Study on thermo-mechanical coupling method of ship cabin with ceiling vent under fire condition

Table 1. Comparison of predicted temperature between FDS and ANSYS models
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Table 1. Comparison of predicted temperature between FDS and ANSYS models
测温点测点温度/℃ 误差/%
FDS模型 ANSYS模型
A 365 357 2.1
B 346 338 2.3
C 226 230 1.8
D 174 182 4.6
E 68 70 3.1

Table 2. Values of wall material thermal performance parameters of the engine room at different temperatures^[25]

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Table 2. Values of wall material thermal performance parameters of the engine room at different temperatures^[25]

温度T/℃	热传导系数λ_s/(W·m⁻²·K⁻¹)	比热容C_p/(J·kg⁻¹·℃⁻¹)	热膨胀系数α_s
20	53.3	439.8	1.21×10⁻⁵
100	50.7	487.6	1.25×10⁻⁵
200	47.3	529.8	1.29×10⁻⁵
300	44.0	564.7	1.33×10⁻⁵
400	40.6	605.9	1.37×10⁻⁵
500	37.4	666.5	1.41×10⁻⁵
600	34.0	759.9	1.45×10⁻⁵
700	30.7	1 500.0	1.49×10⁻⁵
800	27.4	803.3	1.41×10⁻⁵
900	27.3	650.0	1.34×10⁻⁵
1 000	27.3	611.2	1.41×10⁻⁵
1 100	27.3	593.3	1.46×10⁻⁵
1 200	27.3	650.0	1.51×10⁻⁵

Table 3. Physical parameters of n-heptane^[28]

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Table 3. Physical parameters of n-heptane^[28]

参数	取值
密度${\rho _{\rm{s}}}/( { {\rm{kg} }\cdot{ {\rm{m} }^{-3} } } )$	684.0
比热容${C}_{ {\rm{p} } }/({\rm{k} }{\rm{J} }\cdot{\rm{kg} }^{-1}\cdot {\text{℃} }^{-1} )$	2.33
沸点T/℃	98.5
导热系数${\lambda _{\rm{s} } }/( { {\rm{W} }\cdot { { {\rm{m} }}^{-1} \cdot {\rm{K} } } ^{-1} } )$	0.14
燃烧热${h_{\rm{c}}}/( {{\rm{kJ}}\cdot{\rm{g}}^{-1}} )$	44.6

Table 4. Errors of predicted temperature under different conditions
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Table 4. Errors of predicted temperature under different conditions
时刻/s 误差/%
工况1 工况2 工况3 工况4
200 1.2 2.8 3.2 4.0
400 1.6 2.3 3.5 4.7
600 2.5 3.3 3.9 4.5
800 1.6 3.2 2.8 3.4

Table 5. Correspondence between cross-sectional strength-load ratio and critical temperature^[29]
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Table 5. Correspondence between cross-sectional strength-load ratio and critical temperature^[29]
R T_d/℃ R T_d/℃
0.30 676 0.65 546
0.35 656 0.70 528
0.40 636 0.75 510
0.45 617 0.80 492
0.50 599 0.85 472
0.55 582 0.90 452
0.60 564

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Jinhui WANG, Xianda ZHANG, Keye CHEN. Study on thermo-mechanical coupling method of ship cabin with ceiling vent under fire condition[J]. Chinese Journal of Ship Research, 2021, 16(3): 74

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Paper Information

Category: Ship Design and Performance

Received: Mar. 16, 2020

Accepted: --

Published Online: Mar. 27, 2025

The Author Email:

DOI:10.19693/j.issn.1673-3185.01903

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

Table 1. Comparison of predicted temperature between FDS and ANSYS models

Table 1. Comparison of predicted temperature between FDS and ANSYS models

Table 2. Values of wall material thermal performance parameters of the engine room at different temperatures[25]

Table 2. Values of wall material thermal performance parameters of the engine room at different temperatures[25]

Table 3. Physical parameters of n-heptane[28]

Table 3. Physical parameters of n-heptane[28]

Table 4. Errors of predicted temperature under different conditions

Table 4. Errors of predicted temperature under different conditions

Table 5. Correspondence between cross-sectional strength-load ratio and critical temperature[29]

Table 5. Correspondence between cross-sectional strength-load ratio and critical temperature[29]

Table 2. Values of wall material thermal performance parameters of the engine room at different temperatures^[25]

Table 2. Values of wall material thermal performance parameters of the engine room at different temperatures^[25]

Table 3. Physical parameters of n-heptane^[28]

Table 3. Physical parameters of n-heptane^[28]

Table 5. Correspondence between cross-sectional strength-load ratio and critical temperature^[29]

Table 5. Correspondence between cross-sectional strength-load ratio and critical temperature^[29]