Multi-parameter sensitivity analysis on thermal characteristics of stratospheric airship

Abstract Thermal characteristics analysis of stratospheric airship is pivotal in airship design. Many factors can affect the thermal performance. Though the separate influence of each factor was examined in detail by single factor analysis, the multi-parameter sensitivity analysis is still a terra incognita. Here, ten factors were selected to analyze the multi-parameter sensitivity based on the heat transfer process analysis of stratospheric airship and the simplification of thermal equilibrium equations. The orthogonal test design method was used to build the prediction model. In addition, response surface methodology based on the binomial equations was employed as a numerical solver for the fitting equations of the influencing factors. The solutions obtained satisfied the requirements and the relative error of optimal point was 1.7%. The results show that: (1) Among ten parameters, the photovoltaic cells conversion efficiency is an insensitive parameter. (2) An optimum combination scheme is the envelope emissivity of 0.9, envelope absorptivity of 0.1, photovoltaic cells emissivity of 0.9, photovoltaic cells absorptivity of 0.5, photovoltaic cells equivalent thermal resistance of 0.8 m2∙K/W. And the helium temperature difference in this condition is 17.404 K. (3) Considering the real situation, five alternatives are recommended according to their performance close to the optimal results.

[1]  Zhenguo Wang,et al.  Thermal modeling of stratospheric airships , 2015 .

[2]  Xiande Fang,et al.  An empirical model for estimating the atmospheric transmittance of upward infrared radiation at different altitudes , 2016 .

[3]  Xiande Fang,et al.  A new model for atmospheric radiation under clear sky condition at various altitudes , 2014 .

[4]  Mingyun Lv,et al.  Optimization design of a thermal protection structure for the solar array of stratospheric airships , 2019, Renewable Energy.

[5]  Chunlei Liu,et al.  Thermal characteristics and output power performances analysis of solar powered stratospheric airships , 2017 .

[6]  Xiande Fang,et al.  Research on Thermal Characteristics of Photovoltaic Array of Stratospheric Airship , 2011 .

[7]  Yang Yongqiang,et al.  Effect of envelop thermal radiative properties on the stratospheric super-pressure LTA vehicle helium temperature , 2010 .

[8]  Houju Pei,et al.  Forced Convection Heat Transfer for Stratospheric Airship Involved Flight State , 2020, Applied Sciences.

[9]  Jun Li,et al.  Output performance analyses of solar array on stratospheric airship with thermal effect , 2016 .

[10]  Jack P. C. Kleijnen.  Design and Analysis of Simulation Experiments , 2007 .

[11]  Cai Jingjing,et al.  Thermal performance of stratospheric airship with photovoltaic array , 2017 .

[12]  Hong Shi,et al.  Thermodynamics analysis of a stratospheric airship with hovering capability , 2019, Applied Thermal Engineering.

[13]  Lanchuan Zhang,et al.  Effects of solar array on the thermal performance of stratospheric airship , 2017 .

[14]  Xiande Fang,et al.  Thermal performance analysis of solar array for solar powered stratospheric airship , 2020 .

[15]  Jun Li,et al.  Transmittance optimization of solar array encapsulant for high-altitude airship , 2018, Renewable Energy.

[16]  Emanuele Borgonovo,et al.  Sensitivity analysis: A review of recent advances , 2016, Eur. J. Oper. Res..

[17]  Majdi I. Radaideh,et al.  Efficient analysis of parametric sensitivity and uncertainty of fuel cell models with application to SOFC , 2020 .

[18]  Yuanming Xu,et al.  Research on optimal solar array layout for near-space airship with thermal effect , 2018, Solar Energy.

[19]  Xiao-Liang Wang,et al.  Thermal sensitivity factors analysis of stratospheric airships , 2019 .

[20]  Lanchuan Zhang,et al.  Multidisciplinary design of high altitude airship based on solar energy optimization , 2021 .

[21]  Baoyin Song,et al.  Thermal Performance of Stratospheric Airships During Ascent and Descent , 2009 .

[22]  Zan Wu,et al.  Thermal Characteristics of a Stratospheric Airship with Natural Convection and External Forced Convection , 2019, International Journal of Aerospace Engineering.