CAJ | 학술논문

目前，多数微波辅助化学合成实验是基于家用微波炉进行的，但是存在两大问题：加热不均匀以及加热效率低。为解决这一问题，通过使用comsol多物理场仿真软件进行优化设计，提出了一种通用的多试管结构，通过改变试管位置和试管厚度，便可改善水在家用微波炉中的加热效率和温度分布均匀性。这里对加热30ml水和60ml水分别进行了仿真分析，仿真结果表明，相比单试管，此多试管结构对30ml水的加热均匀性和加热效率的提升值分别为97．6%和7．1%，对60ml水的加热均匀性和加热效率提升值分别为98．2%和9．2%。之后对仿真结果进行了实验验证，证明了其正确性。因为水是化学实验中的一种重要溶剂，且稀水溶液与纯水的介电常数相差不大，所以这种多试管结构对稀水溶液具有通用性。
목전，다수미파보조화학합성실험시기우가용미파로진행적，단시존재량대문제：가열불균균이급가열효솔저。위해결저일문제，통과사용comsol다물리장방진연건진행우화설계，제출료일충통용적다시관결구，통과개변시관위치화시관후도，편가개선수재가용미파로중적가열효솔화온도분포균균성。저리대가열30ml수화60ml수분별진행료방진분석，방진결과표명，상비단시관，차다시관결구대30ml수적가열균균성화가열효솔적제승치분별위97．6%화7．1%，대60ml수적가열균균성화가열효솔제승치분별위98．2%화9．2%。지후대방진결과진행료실험험증，증명료기정학성。인위수시화학실험중적일충중요용제，차희수용액여순수적개전상수상차불대，소이저충다시관결구대희수용액구유통용성。
Currently many microwave-assisted chemical syntheses are based on modified domestic microwave ovens. But there are two obvious problems:nonuniform temperature distribution and low heating efficiency. Therefore,a universal type of multiple tube structure was proposed by using COMSOL Multiphysics software for optimization analysis. The heating efficiency and heating uni-formity of water can be improved by changing the tubes’position and thickness simply. The heating performances of 30ml water and 60ml water were simulated respectively. Compared with the single tube structure,the multiple tube structure can improve the water' s heating uniformity and heating efficiency to 97. 6%and 7. 1%(30ml),98. 2%and 9. 2%(60ml)respectively. Then the experiment proved the accuracies of simulation results. Since water is an important solvent and the dielectric constants of water and aqueous so-lutions are similar,the multiple tube structure has the universality for aqueous solutions.