A New Method of Identifying the Limit Condition of Injection Pump Wear in Self-Ignition Engines

Bejger, A.; Drzewieniecki, Jan

doi:10.3390/en13071601

Cited by 6 publications

(7 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Typically, the sensitivity threshold here is quite low: damage is generally only seen (or heard) when it is at an advanced stage of development. The elastic waves of acoustic emission for machine and system diagnostics are used in the broadest sense [3,11,18]. Thus, the use of wave relationships, or putting it more precisely, disturbances of the propagating elastic waves, was proposed and preliminarily tested for diagnosing wind turbine blade damage.…”

Section: Downtime Case Analysis Of Wind Turbines Installed In Polandmentioning

confidence: 99%

The Use of Coherence Functions of Acoustic Emission Signals as a Method for Diagnosing Wind Turbine Blades

Bejger,

Drzewieniecki,

Bartoszko

et al. 2023

Energies

Self Cite

View full text Add to dashboard Cite

Acoustic emission (AE) is one of the methods of non-destructive evaluation (NDE), and functions by means of detecting elastic waves caused by dynamic movements in AE sources, such as cracking in various material structures. In the case of offshore wind turbines, the most vulnerable components are their blades. Therefore, the authors proposed a method using AE to diagnose wind turbine blades. In the identification of their condition during monitoring, it was noted that the changes characterising blade damage involve non-linear phenomena; hence, wave phenomena do not occur in the principal components of the amplitudes or their harmonics. When the authors used the inverse transformation in the signal analysis process, which essentially leads to finding a signal measure, it allowed them to distinguish the wave spectrum of an undamaged system from one in which the material structure of the blade was damaged. The characteristic frequencies of individual phenomena interacting with the blade of a working turbine provide the basis for the introduction of filters (or narrowband sensors) that will increase the quality of the diagnosis itself. Considering the above, the use of the coherence function was proposed as an important measure of a diagnostic signal, reflecting a given condition of the blade.

show abstract

Section: Downtime Case Analysis Of Wind Turbines Installed In Polandmentioning

confidence: 99%

The Use of Coherence Functions of Acoustic Emission Signals as a Method for Diagnosing Wind Turbine Blades

Bejger,

Drzewieniecki,

Bartoszko

et al. 2023

Energies

Self Cite

View full text Add to dashboard Cite

show abstract

“…Tentunya hal ini ISSN 2549-2888 perlu pembongkaran pompa injeksi tersebut. Namun kini ada teknologi baru yang diciptakan untuk mendeteksi batas pemakaian atau umur pemakaian pompa injeksi dengan cara yang lebih modern yaitu menggunakan sinyal emisi akustik, sehingga tau kapan saatnya diperbaiki [5].…”

Section: Pendahuluanunclassified

Analisis Pengaruh Kalibrasi Pompa Injeksi Tipe Inline dan Injektor Motor Diesel Terhadap Volume dan Tekanan Penginjeksian

Anugrah

2021

jtm

View full text Add to dashboard Cite

Motor Diesel dalam jangka waktu tertentu akan menurunkan performanya yaitu daya, torsi, dan respon mesin sehingga perlu dilakukan perawatan berkala. Metode dalam perawatan berkala Motor Diesel diantaranya dengan kalibrasi pompa injeksi dan injektor. Kalibrasi pompa injeksi dan injektor dilakukan untuk mendapatkan bentuk pengabutan (atomisasi) bahan bakar yang baik. Indikator kualitas pengabutan bahan bakar dapat ditinjau dari volume dan tekanan penginjeksian yang sesuai dengan standard atau tidak. Tujuan penelitian ini adalah untuk menganalisis pengaruh kalibrasi pompa injeksi tipe inline dan injektor pada Motor Diesel 6 silinder terhadap volume dan tekanan penginjeksian. Metode kalibrasi yang pertama adalah menghubungkan pompa injeksi pada alat kalibrasi dan menghubungkan porosnya pada motor penggerak dengan putaran 1100 rpm. Kedua, mengaktifkan saklar AC dan DC agar solenoid aktif dan membuka katup sehingga bahan bakar dapat mengalir, hal ini dilakukan selama 1 menit. Langkah selanjutnya adalah memeriksa tekanan penginjeksian dan volume bahan bakar yang keluar lalu dibandingkan dengan standarnya. Untuk mendapatkan hasil yang sesuai standard maka dilakukan penyetelan aliran bahan bakar dengan memutar fuel load adjusting screw pada pompa injeksi setiap 90° dan adjusting screw pada injector. Hasil dari pengujian setelah dilakukan kalibrasi diperoleh hasil yang sesuai standard yaitu tekanan penginjeksian 22 MPa atau 3200 psi dan volume penginjeksian rata-rata 13,5 cc.

show abstract

“…Operating experience and test results clearly show that diluting LO with fuel is unfavorable for the engine, deteriorating the engine's operating efficiency, shortening the life of the oil, and reducing the reliability and safety of the engine [19,20]. Over time, the excessive and progressive dilution of oil with fuel can lead to significant wear [7,21] and serious engine failure [22], resulting in explosions in the crankcase, among other issues [13,23]. Castrol indicates in a publication that diluting LO with fuel would result in a crankcase explosion [23].…”

Section: Introductionmentioning

confidence: 99%

Arrhenius Equation for Calculating Viscosity in Assessing the Dilution Level of Lubricating Oil with Diesel Oil—A Case Study of SAE 30 and SAE 40 Grade Marine Lubricating Oils

Chybowski,

Szczepanek,

Gawdzińska

2024

Energies

View full text Add to dashboard Cite

This article proposes using the Arrhenius model for estimating the viscosity of a mixture of two liquids in the quantitative assessment of the physicochemical properties of lubricating oils in the context of assessing the level of dilution of lubricating oil with diesel oil. Dynamic are made of mixtures of lubricating oil and diesel oil with known concentrations of 0, 1, 2, 5, 10, 20, 50, and 100% m/m of the diesel oil content in the mixture. Mixtures of the most popular oils (viscosity classes SAE 30 and SAE 40) with diesel oil that meet the requirements of the DMX of the marine distillate fuels category are prepared and tested. Viscosity measurements are performed at 40, 50, 60, 70, 80, 90, and 100 °C temperatures. The Arrhenius model is used to estimate the viscosity of the mixtures with an assumed diesel oil content and to estimate the diesel oil concentration in the mixtures with a known measured viscosity value. In both cases, the absolute estimation error is determined, and the accuracy of the estimation is assessed against the known concentration of diesel oil in the mixture with lubricating oil and the temperature at which the viscosity is measured. The estimated concentrations of diesel oil in mixtures with lubricating oil are useful to assess the condition of the lubricating oil (for concentrations of diesel oil lower than 5% m/m). The method is proposed to be used in practice to support standard laboratory oil analysis.

show abstract

A New Method of Identifying the Limit Condition of Injection Pump Wear in Self-Ignition Engines

Cited by 6 publications

References 7 publications

The Use of Coherence Functions of Acoustic Emission Signals as a Method for Diagnosing Wind Turbine Blades

The Use of Coherence Functions of Acoustic Emission Signals as a Method for Diagnosing Wind Turbine Blades

Analisis Pengaruh Kalibrasi Pompa Injeksi Tipe Inline dan Injektor Motor Diesel Terhadap Volume dan Tekanan Penginjeksian

Arrhenius Equation for Calculating Viscosity in Assessing the Dilution Level of Lubricating Oil with Diesel Oil—A Case Study of SAE 30 and SAE 40 Grade Marine Lubricating Oils

Contact Info

Product

Resources

About