Salman Jalalifar

• PhD
• Associate Lecturer at Macquarie University

Drowning poses a significant threat, resulting in unexpected injuries and fatalities. To promote water sports activities, it is crucial to develop surveillance systems that enhance safety around pools and waterways. This paper presents an overview of recent advancements in drowning detection, with a specific focus on image processing and sensor-bas...

To reduce drowning incidents, this study presents a novel sensor-based system for detecting swimmer distress in different water environments and depths. This system includes a measuring device, a GPS beacon, and a receiver. The measuring device includes a heart rate oximeter, a 3-axis accelerometer and a pressure sensor for water depth detection. T...

Further efforts are still needed to refine and optimise complex thermochemical pyrolysis processes crucial in waste management and clean energy production. In this work, a comparative artificial intelligence (AI) based modelling study is conducted using four supervised machine learning models, including artificial neural network (ANN), random fores...

Drowning is considered amongst the top 10 causes of unintentional death, according to the World Health Organization (WHO). Therefore, anti-drowning systems that can save lives by preventing and detecting drowning are much needed. This paper proposes a robust and waterproof sensor-based device to detect distress in swimmers at varying depths and dif...

A new, facile, low-cost, and green sol-gel route for the synthesis of the MgFe2O4@CoCr2O4 magnetic nanocomposite is reported. The photocatalytic performances of the prepared magnetic nanocomposite was investigated for the degradation of organic dye under visible light irradiation. The synthesized magnetic photocatalyst depicted high degradation per...

It is critical to comprehend the safety aspects of hydrogen fuel cell vehicles (FCVs) in semi-confined and confined environments. The hydrogen jet fire is a key hazard resulting from coincidental hydrogen release from onboard storage followed by ignition. The rise in temperature and depletion of oxygen inside the tunnel may cause calamitous debacle...

The formation of a butt weld bead occurs at the conjoined pipes during the process of butt-welding for pipelines in water and wastewater networks. Pressure losses in pipes with weld beads are often underestimated in design practice that affects the safety and reliability of the system. This paper focuses on the effect of weld beads and pressure los...

This study uses computational fluid dynamics to model powder fluidisation in a turbulent channel flow. A two-fluid model is adopted for simulations. Closures are provided through the kinetic theory of granular flow where particle energy fluctuations are captured through granular temperature. Simulation results are compared to the experimental evacu...

This study presents computational fluid dynamics (CFD) analysis of the effects of wettability, viscosity and interfacial tension (IFT) for enhanced oil recovery (EOR) with varying pore configuration. A more realistic pore-throat geometry is studied which was motivated by oil-containing rock configuration that indicates the importance of pore geomet...

In this work, an auger pilot-scale fast pyrolysis process computational fluid dynamic (CFD) model was developed for use as a design tool for scale-up. Multiphase flow dynamics and chemical kinetics were included in the multi-fluid model (MFM). Rotating reference frame (RRF) was adopted to simulate the effect of rotation of the auger in the reactor....

Fluidisation of sand particles and consequently their mixing with biomass particles have significant effects on bio-oil production in bubbling fluidised bed reactors (BFBR). Minimum fluidisation velocity (MFV) which is a function of particle size, is an important factor that shows the lower limit for the velocity of fluidising media in BFBR. The fl...

Comprehensive scrutiny is necessary to achieve an optimised set of operating conditions for a pyrolysis reactor to attain the maximum amount of the desired product. To reach this goal, a computational fluid dynamic (CFD) model is developed for biomass fast pyrolysis process and then validated using the experiment of a standard lab-scale bubbling fl...

T his paper presents a CFD study of a fast pyrolysis process in a pilot-scale auger reactor. By providing a detailed CFD simulation of this reactor, we are capable to obtain a clearer insight into the complex physical phenomena associated with multi-phase flow dynamics, heat transfer and chemical kinetics. The three main products of the process are...

In this study, the Eulerian-Granular approach is applied to simulate a fast pyrolysis bubbling fluidized bed reactor. Fast pyrolysis converts biomass to bio-products through thermochemical conversion in absence of oxygen. The aim of this study is to employ a numerical framework for simulation of the fast pyrolysis process and extend this to more co...

In this study, the Eulerian-Granular approach is applied to simulate a fast pyrolysis bubbling fluidized bed reactor. Fast pyrolysis converts biomass to bio-products through thermochemical conversion in absence of oxygen. The aim of this study is to employ a numerical framework for simulation of the fast pyrolysis process and extend this to more co...

In this study, the heat conduction problems of the disk brake components (pad and rotor) are modeled mathematically and is solved numerically using Finite Difference Method. In the discretization of time dependant equations the implicit method is taken into account. In the derivation of the heat equations, parameters such as the duration of braking...

In this paper, the governing heat equations for the disk and the pad are extracted in the form of transient heat equations with heat generation that is dependant to time and space. In the derivation of the heat equations, parameters such as the duration of braking, vehicle velocity, geometries and the dimensions of the brake components, materials o...

In this research, two major models are used for calculation of frictional heat generation: namely macroscopic and microscopic model. In the macroscopic model, the law of conservation of energy or First Law of Thermodynamics is taken into account. And for the microscopic model, parameters such as the duration of braking, velocity of the vehicle, dim...