[HTML][HTML] A method for correcting the high-frequency mechanical vibration effects in the dynamic calibration of pressure measurement systems using a shock tube

A Svete, E Amer, G Jönsson, J Kutin… - Mechanical systems and …, 2023 - Elsevier
The extremely rapid reflection of a shock wave from the end wall generated in the shock
tube, in addition to the high-frequency content of pressure, inevitably also excites …

A new knock event definition for knock detection and control optimization

P Bares, D Selmanaj, C Guardiola, C Onder - Applied Thermal Engineering, 2018 - Elsevier
In this paper, the knock phenomenon is studied and characterized in the time-frequency
domain. From the analysis results, a new knock event definition is proposed, which …

Cycle by cycle NOx model for diesel engine control

C Guardiola, J Martín, B Pla, P Bares - Applied Thermal Engineering, 2017 - Elsevier
This paper presents a model for on-line NOx estimation. The method uses both, low
frequency components and high frequency components of in-cylinder pressure signal: it …

[HTML][HTML] Optical study of active narrow throat pre-chamber assisted internal combustion engine at lean limit

P Sharma, Q Tang, R Sampath, P Hlaing… - Applications in Energy …, 2023 - Elsevier
The pre-chamber assisted ignition offers several much-needed upgrades to gas engines,
ranging from improved combustion efficiency and stability to extended lean limits. The …

Acoustic characterization of combustion chambers in reciprocating engines: An application for low knocking cycles recognition

R Novella, B Pla, P Bares… - International Journal of …, 2022 - journals.sagepub.com
In this paper the acoustic response of a combustion chamber is studied by assuming
different pressure field excitation. The viscous effects on the combustion chamber and the …

An analysis of the in-cylinder pressure resonance excitation in internal combustion engines

C Guardiola, B Pla, P Bares, A Barbier - Applied Energy, 2018 - Elsevier
This paper analyses the in-cylinder pressure oscillations in internal combustion engines,
which are initiated by combustion and resonate during the expansion stroke. A specific …

In-cylinder pressure statistical analysis and digital signal processing methods for studying the combustion of a natural gas/diesel heavy-duty engine at low load …

J Cuisano, F Flores, L Chirinos, A Vaudrey - Energy Conversion and …, 2022 - Elsevier
In-cylinder pressure analysis is one of the most important tools for combustion diagnosis.
The dual-fuel compression ignition engines present a different in-cylinder pressure evolution …

Effect of exhaust gases of Exhaust Gas Recirculation (EGR) coupling lean-burn gasoline engine on NOx purification of Lean NOx trap (LNT)

L Liu, Z Li, S Liu, B Shen - Mechanical Systems and Signal Processing, 2017 - Elsevier
Based on pervious experimental research on the application of Exhaust Gas Recirculation
(EGR) and Lean NOx Trap (LNT) with its effects on NOx emission control and secondary …

In-cylinder pressure based model for exhaust temperature estimation in internal combustion engines

C Guardiola, P Olmeda, B Pla, P Bares - Applied Thermal Engineering, 2017 - Elsevier
Exhaust temperature is a valuable parameter for engine control. However, measurement
conditions at the engine exhaust and the slow dynamic response of temperature sensors …

Cylinder state estimation from measured cylinder pressure traces-a survey

L Eriksson, A Thomasson - IFAC-PapersOnLine, 2017 - Elsevier
In the search for improved performance and control of combustion engines there is a search
for the sensors that gives information about the combustion profile and the state of the gases …