In order to implement close-loop feedback control of HCCI gasoline enginea,new thought of extracting HCCI combustion parameters from knock sensor signal was presented.

It s helpful for studying combustion control of HCCI to research the heat release rate of HCCI combustion,Webie function is the function used to resemble the combustion heat release rate most frequently,but due to the complexity of HCCI combustion and the limitation of Webie function,it couldn t resemble closely.

This paper studies the correlation of spark plug ion current and state of HCCI combustion in several dynamic opera-tions in a gasoline HCCI engine based on internal EGR.

This paper introduces the characteristics of new generation combustion theory-HCCI combustion which could resolve this problem, HCCI combustion is controlled by chemical dynamics, which has not apparent flame front, and its highest combustion temperature is relatively low.

Therefore, the research based on HCCI combustion micro-free piston engine is expected to exceed restrictions by the sm.

Combustion parameters were studied from a turbocharged inter-cooled diesel engine under constant speed and increasing torque(CSIT)operating conditions with combustion analyzer.

Based on experience gained in designing and operation, the paper presents a short description of operational adjustment of principal combustion parameters of circulating fluidized bed boilers with the help of a high temperature cyclone seperation device for the segregation of gases and solids.

Based on tranditional combustion calculation principle and theoritical analysis, a calculation method on combustion references is presented in this paper to approch mix-combustion with multi-fuel under normal condition.