Tremophysical Properties of Component Materials of Molten Carbonates Fuel Cell

熔融碳酸盐燃料电池组成材料的热物理性能

• 批准号: 06650266
• 负责人: NAGASAKA Yuji
• 金额: $ 1.28万
• 依托单位: Keio University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1994
• 资助国家: 日本
• 起止时间: 1994 至 1995
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-06650266/
• 关键词: Molten Carbonate Fuel Cell; Thermophysical Properties; Molten Carbonates; Thermal Diffusivity; Forced Rayleigh Scattering Method; High Temperature Melts

The results obtained from the present research are summarized as follows.(1) In order to develop a practical forced Rayleigh scattering apparatus applicable to a wide range of substances and conditions, we have invented a free-surface feating technique using CO_2 laser which does not require any cell windows.(2) By measuring water at room temperature and molten caronates, it has been found the effect of two-dimensional heat conduction. We have analyzed the error factors, and attempted to apply new analysis to correct the errors.(3) The thermal diffusivity of molten carbonates mixtures (Li_2CO_3-Na_2CO_3-K_2co_3 : 45.3-31.5-25.0mol% and Li_2CO_3-Na_2CO_3 : 53.3-46.7mol%) at temperatures up to 1030K.(4) The thermal diffusivity of molten Li_2CO_3 (1130 to 1170K), Na_2CO_3 (1160 to 1260K) and K_2CO_3 (1170 to 1300K) has been measured by using sapphire glass as a sample cell. The accuracy of the present measurement is estimated to be <plus-minus> 25%. We found that the previous date by Egorov are larger than ours with a macximum deviation of about 170%.

从本研究中获得的结果总结如下。(1)为了研制一种实用的、适用于多种物质和条件的受迫瑞利散射装置，我们发明了一种不需要小室窗口的CO_2激光自由表面测量技术。(2)通过对室温水和碳酸盐熔体的测量，发现了二维导热效应。分析了误差因素，并尝试应用新的分析方法对误差进行修正。(3)本文研究了熔融碳酸盐混合物（Li_2CO_3-Na_2CO_3-K_2CO_3：45.3-31.5-25.0mol%和Li_2CO_3-Na_2CO_3：53.3-46.7mol%）在1030 K以下的热扩散系数。(4)用蓝宝石玻璃作样品池，测量了Li_2CO_3（1130 ~ 1170 K）、Na_2CO_3（1160 ~ 1260 K）和K_2CO_3（1170 ~ 1300 K）熔体的热扩散率。本测量的准确度估计为<plus-minus>25%。我们发现Egorov以前的数据比我们的大，最大偏差约为170%。

项目成果

T. Ibata: "Experimental Study of the Thermal Diffusivity of Molten Carbonates by the Forced Rayleigh Scattering Method with CO_2 Laser" Proc. 4th Asian Thermophysical Properties Conference. 85-88 (1995)

T. Ibata：“通过 CO_2 激光强制瑞利散射法对熔融碳酸盐热扩散率的实验研究”Proc。

Ibata, T.: "Experimental Study of the Thermal Diffusivity of Molten Carbobnates by the Forced Rayleigh Scatteing Method with CO_2 Laser" Proc.4th Asian Thermphysical Properties Conference. 85. (1995)

Ibata, T.：“通过 CO_2 激光强制瑞利散射法进行熔融碳酸盐热扩散率的实验研究”Proc.4th 亚洲热物理性质会议。

大坪誠司: "CO_2レーザーを用いた強制レイリー散乱法の研究(第5報 溶融Li_2CO_3およびNa_2CO_3の測定)"

大坪精二：“使用CO_2激光的强制瑞利散射法的研究（报告5：熔融Li_2CO_3和Na_2CO_3的测量）”

Ibata, T.: "Experimental Study of the Forced Rayleigh Scattering Method with CO_2 Laser (3rd Report ; Improvenment of the Optical System and Investigation of Error Factor due to Free Surface Heating Technique)" Proc.31st National Heat Transfer Symposium o

Ibata, T.：“CO_2 激光强制瑞利散射法的实验研究（第 3 次报告；光学系统的改进和自由表面加热技术引起的误差因素的研究）”第 31 届全国传热学术研讨会论文集

茨田高志: "CO_2レーザーを用いた強制レイリー散乱法の研究(第3報.光学系の改良及び自由表面加熱法の誤差要因の検討)" 第31回日本伝熱シンポジウム講演論文集. 283-285 (1994)

Takashi Ibarata：“使用CO_2激光的强制瑞利散射方法的研究（第3次报告。光学系统的改进和自由表面加热方法的误差因素的研究）”第31届日本传热研讨会论文集283-285（1994）。