A5038814518- Advanced Combustion Engine Technologies
- Catalytic Processes in Materials Science
- Combustion and flame dynamics
- Vehicle emissions and performance
- Biodiesel Production and Applications
- Atmospheric chemistry and aerosols
- Combustion and Detonation Processes
- Rocket and propulsion systems research
- Engine and Fuel Emissions
- Refrigeration and Air Conditioning Technologies
- Heat transfer and supercritical fluids
Tianjin University
2021-2025
Ammonia-diesel premixed-charge compression ignition (PCCI) represents an effective method to reducing greenhouse gas (GHG) emissions from engines, while potentially achieving higher thermal efficiency. Nevertheless, the efficiency of current ammonia-diesel dual-fuel (ADDF) engines can still be improved, and limited research has been conducted on in-cylinder combustion optimization pollutant formation mechanisms, as well control strategies, PCCI mode across multi-load conditions. This study...
The application of mechanisms such as exhaust gas recirculation (EGR) coupled with variable valve timing (VVT) and a geometry turbocharger (VGT) can improve engine efficiency; however, the energy laws loss distribution after EGR, VVT, VGT changes are unclear, restricting optimization structures corresponding strategies. Herein, six-cylinder is studied, revealing that cooling high-pressure (HP) EGR loop an important factor affecting distribution. accounts for 10.00%–20.00% total energy,...
Natural gas (NG) engines have very broad application prospects. The pilot-ignited NG diesel engine can be organized into two combustion modes according to the sequence of oil and injection: (1) High-pressure direct injection, where is mainly diffused combustion; (2) partially premixed compression ignition, combustion. In this study, we used CONVERGE explore influence injection timing on distribution mixture equivalence ratio, ignition characteristics, thermal efficiency, emission, reaction...
Ammonia (NH3), as a zero carbon, easy to synthesize, and easily obtainable fuel, is one of the choices for future internal combustion engine fuels. However, slow laminar flames speed high ignition temperature NH3 seriously hinder development engines. How efficiently ignite ensure its stable currently difficult research topic. Optimizing process by using diesel effective solutions. increase unburned ammonia (UNH3) unstable combustion, under load conditions have always been technical...
Ammonia (NH3), as a zero carbon, easy to synthesize, and easily obtainable fuel, is one of the choices for future internal combustion engine fuels. However, slow laminar flames speed high ignition temperature NH3 seriously hinder development engines. How efficiently ignite ensure its stable currently difficult research topic. Optimizing process by using diesel effective solutions. increase unburned ammonia (UNH3) unstable combustion, under load conditions have always been technical...
Methanol, as a low-carbon and easily synthesizable fuel, is one of the promising directions for future internal combustion engine (ICE) fuels. However, methanol/diesel engines with high energy substitution ratios exhibit significant drawback at low loads, namely poor fuel economy, which seriously hinders development dual engines. Therefore, this paper conducts an optimization study on strategy in heavy-duty vehicle under (70%) loads. And innovatively combines single-hole injection direct...
The gasoline compression ignition (GCI) is deemed to be one of the effective ways achieve efficient and clean combustion. However, low in-cylinder temperature under idle low-load conditions leads certain problems, such as difficulties in unstable In this paper, based on a refitted single-cylinder diesel engine, combustion stability GCI mode idling speed was studied. thermal efficiency were improved by adjusting intake temperature, coolant injection strategy. During test, engine set 800 rpm...