重构传统发动机的效率体系  

Reconstruction of the Efficiency System of Traditional Engines

作　　者：刘祖川 Liu Zuchuan

机构地区：[1]成都双镟动力科技有限公司,四川省成都市610000

出　　处：《时代汽车》2022年第23期35-36,共2页Auto Time

摘　　要：在机械转换损失、废气带走损失、传热冷却损失等三大发现的冲击下,理论热效率“天花板”已然被打翻在地,其效率体系及其背后支撑热力学第二定律也跌落神坛,所有这些势必引发一场颠覆性革命。早已弃置一旁的理论热效率近乎消失匿迹,但在“高速换档”的新能源时代和重大历史机遇的席卷之下,推出简洁、实用、有效的效率体系迫在眉睫。抛开热力循环,剔除高、低温热源,不屑理论热效率,直奔有效热效率,在热平衡框架内,抓住既反映燃烧热量又反映有效功的膨胀功,重构效率体系,并给出估测实例。Under the impact of the three major discoveries,namely,mechanical conversion loss,waste gas removal loss,and heat transfer and cooling loss,the theoretical thermal efficiency “ceiling” has been knocked to the ground,and its efficiency system and the second law of thermodynamics behind it have also fallen off the altar,all of which will inevitably lead to a reverse revolution.The theoretical thermal efficiency that has long been abandoned almost disappeared.But under the sweep of the new energy era of “high-speed shift” and major historical opportunities,it is urgent to launch a simple,practical and effective efficiency system.Put aside the thermal cycle,remove the high and low temperature heat sources,disdain the theoretical thermal efficiency,and go straight to the effective thermal efficiency.In the heat balance framework,it is necessary to seize the expansion work that reflects both the combustion heat and the effective work,reconstruct the efficiency system,and give an estimation example.

关 键 词：效率体系 有效热效率 热平衡 膨胀功 压缩功 燃烧损失 机械损失 

分 类 号：G63[文化科学—教育学]