observer based gas

Observer Based Cylinder Charge Estimation for Spark

model is built to study the engine gas path dynamics and characteristics and then simplified to provide system dynamic basis for the following estimation algorithm development Using the developed model a disturbance observer based cylinder charge estimation technique is developed based on a combination of sensors including MAF...

Observer Based Fuel Delivery Control for PEM Fuel Cells

Then a high order sliding mode observer is designed to observe the system states with known disturbance Finally based on the developed disturbance and sliding mode observer an output feedback controller is proposed to supply adequate hydrogen and maintain the anode hydrogen at a suitable concentration level...

Egypt Says UAE Joins East Mediterranean Gas Forum as an

Jan 13 2021 0183 32 Egypt said on Wednesday that the United Arab Emirates has joined the Cairo-based Eastern Mediterranean Gas Forum as an observer Egypt Israel Greece Cyprus Italy and Jordan established the East Mediterranean Gas Forum EMGF as an intergovernmental organization in a virtual ceremony hosted by Cairo in September...

Ultrasonic Leak Detector Observer

Ultrasonic Leak Detector instantly detects pressurized gas leaks with high precision omni-direction acoustic gas detection Detection range up to 28m The Observer® i UGLD provides an industry-leading detection range up to 28 m reducing the number of detectors required Approvals subject to change without notice and may differ based...

Adaptive observer based approach for the fault diagnosis

Dec 01 2019 0183 32 Similar to Observer 1 Observer 2 also converges to the true values of the adaptive variables quickly The observer can track all the state variables and the faulty inlet concentration variables effectively as seen in Fig 5 Unlike Observer 1 there is a lag in the Observer 2 convergence of system variabl...

Rosatom to build small

Dec 25 2020 0183 32 The exploitation of the nuclear plant will also result in phasing out of coal-based and diesel-based energy sources and a corresponding yearly reduction of up to 10 000 tons of greenhouse gas emissions in the region In the future the plant can also be used for the production of hydrogen for green energy sources the statement sa...

Top 80 Oil and Gas Blogs Websites Influencers in 2021

Jan 17 2021 0183 32 Aussie Oil Gas Observer About Blog The Aussie Oil and Gas Observer blog is a regular blog written by an industry observer based in Australia It provides his very personal observations and analysis on week-daily developments in the oil and gas scene viewed from an Australian perspective...

PDF Observer Based Nonlinear State Feedback Control of

In this paper the observer based nonlinear state feedback controller has been developed to control the pressures of the oxygen and the hydrogen in the PEM Proton Exchange Membrane fuel cell system...

Evaluation of Lyapunov

Summary In this paper we present two new Lyapunov-based observers for the decentralized multiphase flow measurement that are based on the interconnections between the two subsystems to precisely estimate the states of the multiphase flow at the gas refinery...

Watchdog Fossil fuel firms need to curb climate gas leaks

Jan 18 2021 0183 32 A report published Monday by the Paris-based organization found the estimated 10 drop in methane emissions from oil and gas companies...

Sarnia natural gas plant at risk if Line 5 pipeline shut down

Dec 16 2020 0183 32 The Plains Midstream natural gas liquids fractionation plant on Plank Road began operating in 1970 The company a subsidiary of Houston-based...

Stochastic Air

Abstract In this paper the air-fuel ratio regulation problem of compressed natural gas CNG engines considering stochastic L 2 disturbance attenuation is researched A state observer is designed to overcome the unmeasurability of the total air mass and total fuel mass in the cylinder since the residual air and residual fuel that are included in the residual gas are unmeasured and the...

Ultrasonic Leak Detector Observer

Features Artificial Neural Network ANN technology that distinguishes between real gas leaks and false alarm sources without requiring any in-field training The Observer® i UGLD provides an industry-leading detection range up to 28 m reducing the number of detectors required Ideal for use in complex outdoor pipeline systems...

NM at an energy crossroads » Albuquerque Journal

Recovery will take years they say and the heyday of booming shale-based gushers that pushed production to records in recent years will not return Fracking sand used at the Blue Moon well site...

Petrofac wins flare gas recovery contract

UK-based international oilfield and petrochemical engineering services giant Petrofac has announced that it has secured a contract to support the development of a flared gas recovery project in the Sultanate It was one of three engineering contracts awarded to...

UAE joins Egypt

Jan 15 2021 0183 32 France has applied to join the Cairo-based forum while the United States and the European Union requested observer status Energy-hungry Turkey has denounced the EMGF as an attempt to exclude it from the gas equation in the Eastern Mediterranean In August Ankara dispatched its seismic survey vessel Oruc Reis into a disputed area in the...

Is hydrogen the solution to net

Mar 21 2020 0183 32 The report drew a parallel to the way the gas industry converted from town gas to natural gas in the 1960s and 70s Town gas was a combination of hydrogen carbon monoxide and methane...

Disturbance Observer

This paper proposes a disturbance observer-based discrete sliding-mode control scheme with the variable sampling rate control for the marine diesel engine speed control in the presence of system uncertainties and disturbanc Initially a sliding-mode controller based on the fast power reaching law is employed which has a good dynamic quality of the arrival stage and can suppress chattering...

Nonlinear observer

Jul 18 2019 0183 32 This paper presents a nonlinear observer-based control design approach for gasoline engines equipped with exhaust gas recirculation EGR system A mean value engine model is designed for control which includes both the intake manifold and exhaust manifold dynamic focused on gas mass flows Then the nonlinear feedback controller based on the developed model is designed for the state...

IET Digital Library Observer canonical form based robust

They convert the original faulty plant into its observer canonical form By proposing two filters based on the resulting observer canonical form they develop novel parameter update laws for fault parameter estimation With the proposed update laws the true state of the faulty plant can be estimated by the proposed observers...

Observers see rays of hope for 2021 in Canada s gloomy oil

Dec 20 2020 0183 32 Roszell heads a team of executives who have created built and sold three Calgary-based conventional oil and gas companies in the past dozen or so years All had water-themed names Raging River Exploration Wild Stream Exploration and Wild River Resourc...

North Carolina looks for additional transportation funding

Jan 12 2021 0183 32 According to the study an average driver who travels 12 000 miles per year in a vehicle that gets 22 miles to the gallon -- such as a minvan -- pays about 1641 per month in state gas...

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