CAJ | 학술논문

对天然气中的主要成分甲烷的燃烧性能进行了研究，在化学动力学的基础上研究了甲烷的燃烧性能和燃烧过程，利用气象动力学软件Chemkin中的零维单区模型建立了甲烷的均质压燃燃烧仿真模型。提出掺入正庚烷来实现甲烷的均质压燃，研究了掺入不同比例的正庚烷对甲烷着火相位和初始条件要求的变化，研究结果表明，掺入少量的正庚烷即可降低进气温度，加入15％的正庚烷可使甲烷实现低温压燃，为天然气在均质压燃条件下的使用提供了较好的思路，对推广天然气在内燃机中的使用有重要参考价值。
대천연기중적주요성분갑완적연소성능진행료연구，재화학동역학적기출상연구료갑완적연소성능화연소과정，이용기상동역학연건Chemkin중적령유단구모형건립료갑완적균질압연연소방진모형。제출참입정경완래실현갑완적균질압연，연구료참입불동비례적정경완대갑완착화상위화초시조건요구적변화，연구결과표명，참입소량적정경완즉가강저진기온도，가입15％적정경완가사갑완실현저온압연，위천연기재균질압연조건하적사용제공료교호적사로，대추엄천연기재내연궤중적사용유중요삼고개치。
The combustion properties of methane—the main component of nature gas were studied .Combustion performance and combustion processes of methane were researched based on chemical kinetics .The simulation model of a single area of meth-ane HCCI combustion was established using the zero -dimensional model in gas dynamics software Chemkin .Incorporating n-heptane was proposed to achieve HCCI of methane .The ignition phase and the change of initial conditions requirement of methane were studied under different n -heptanein corporation ratio;it concluded that incorporating little amounts of n -heptane can re-duce the temperature of the intake air .The study provided a good idea to the use of natural gas under the conditions of HCCI , and it is important to promote the use of natural gas in internal combustion engines .