Detailed engineering analysis of exhaust waste gas heat extraction HVAC network revealed the strength and weaknesses of the design. Recommendations were made to improve its performance

Sizing of pipe lines, calculation of pipe network pressure drop, selection of pipe materials, routing of piping, calculating degree of pipe thermal expansion and heat losses through pipes. We ensure the pipe size specified is safe to operate and economical

Our Melbourne based client engaged us to supervise the in-situ fabrication of an equipment designed and scaled-up from the results obtained via CFD modelling & simulation

Designed and fabricated a skid-mounted unit for pharmaceutical companies. The job involved conceptual, detailed engineering, procurement, fabrication and commissioning

CFD modelling and simulation of a transformer room. Transient simulation results show the time taken to reach steady-state room temperature. All available heat sources and heat sinks were considered including heat  conduction/flux through the immediate walls

CFD simulations were performed on ultra-violet photoreactor to characterise its performance. Optimisations were made with respect to the mean residence time, lamps layout, elimination of short-circuiting flows and dead zones. This led to a significant increase in the effective dose

CFD modelling and simulation of the internal component of a globe valve. The streamlines show the flow pattern of fluid travelling through the seat opening and around the valve stopper. Pressure drop and fluid velocity across this valve were also calculated

In this project, the pressure drop across HVAC ducts within a 4-storey building was modelled and simulated using CFD. From the results obtained, "what if" scenarios were simulated. Then, optimisation of the duct network was performed to improve its overall performance

Performance characterisation of an open channel flow showing water flowing over a weir. The results enabled engineers to design and optimise the geometry of weir so as to meet desired flowrate in order to prevent flooding

CFD modelling and simulation of a shell-and-tube heat exchanger to optimise the internal layout with respect to the number of tubes, location of baffles, detection of dead zones and calculating the level of turbulence so as to maximise the heat transfer rate

CFD was employed to verify whether a clarifier designed for a wastewater treatment plant will perform as intended by taking into considerations clarifier design configurations, desired flowrates, capacity and property of settling materials

Modelling and simulation using Autodyn to study the impact of exploding IEDs against armoured vehicle hull. The results assisted hull designers to optimise the shape of bottom hull to increase blast wave deflection capability of this armoured vehicle

Transient simulation of an IEDs detonating on a busy intersection surrounded by skyscrapers. Our analysis shows the overpressure sustained by nearby buildings, the estimated diameter of blast wave and the number of human casualty

Simulation analysis showing a 25mm projectile travelling at Mach 3 fired from an advanced fighter jet. These results enabled engineers to successfully reduce the drag coefficient by modifying the geometry of this projectile

CFD modelling and simulation study to determine particles erosion using the Lagrangian discrete phase model in ANSYS Fluent which follows the Euler-Lagrange approach. CFD results recommended the most effective design to minimise erosion and contain the particles


In Australia, Singapore and throughout the Indo-Pacific region, our professional services are focused on the building & environment, chemical & petrochemical, defence & security, food & beverage, mining, pharmaceutical, renewable energy, semiconductor and water industries. These are a few of the projects we have delivered but due to the sensitive nature of the works involved and the non-disclosure agreement in force, we strive to preserve our clients' identity.


Design of a chemical plant with high pressured non-Newtonian multiphase SS 316 piping network and gravity flow pipes. Sizing and specification of pumps. This is followed by supervision of its installation to ensure what was being installed conformed to what was designed

No job is too small for Jimmy Lea & Chartered Engineers. For example, this scope of work involved the detailed design of a vacuum piping network, process sizing, selection, equipment procurement and supervision of the installation of vacuum pumps

Technology development and scale-up of equipment and/or process plant from laboratory to pilot-scale and subsequently to commercial scale. Jimmy Lea & Chartered Engineers works closely with its clients to ensure scale-up follows the most economically efficient pathway

Selected, sized, specified and procured these high-pressured manually-operated globe valves for process plants. Since Jimmy Lea & Chartered Engineer makes frequent purchases, it enjoys healthy discounts from the vendors which are passed onto the clients

Plant instrument selection, specification, procurement and installation supervision for process plants. Examples of variable: flowrate, pH, pressure, temperature, level, density etc. Thee datasheet we generate enable client's procurement team to commence purchasing

Detailed process calculations was performed to determine the heat load requirements of a chemical plant. From there, an appropriate water boiler was sized, a mechanical datasheet generated for the procurement team to begin procuring the boiler 

Designed of heat-traced high pressure piping (500 Bar) system for highly viscous polymer solution process plant. Provided inputs during construction stage, witnessed hydrostatic and pneumatic testing

Computational Fluid Dynamics (CFD) post-processing results showing region of high velocity inside a continuous stirred tank reactor (CSTR). Through CFD, the blending time was determined and dead zones inside the reactor were eliminated

CFD model showing equipment located on a building roof top. Simulation result shows air flow profiling from cooling towers and high plume fans. CFD results also determine the extend of short-circuiting of discharges and the impact of (plume) on nearby buildings

CFD modelling and simulation of wind driven rain impacting on a train station platform. The results determined whether the station's weather protection was effective in preventing rain water from entering the MRT station interior without compromising its natural and smoke ventilation abilities

CFD modelling and simulation to determine the total boat hull drag force imposed by water and air components. Simulation was also performed to determine the total thrust produced by its propellers. Eventually, the maximum speed of this boat was predicted.

Designed, fabrication, installation and commissioning of a continuous stirred tank reactor (CSTR). Scope of work included process tank sizing, preparing mechanical datasheets, design of control system, procurement, CSTR fabrication supervision, installation and commissioning

This project involved natural ventilation studies using CFD simulations to justify alterations to the building internal partitions. CFD results showed that the addition of additional corridors would improve the natural ventilation, hence justifying the cost of building modifications

A small pilot reactor was fabricated to validate CFD results using Particle Image Velocimetry (PIV) which involved a pair of pulsed 532nm lasers emitted for 400 light pulses and 20 micron Rhodamine B-based fluorescent particles employed as the tracer materials

Our mechanical engineers designed and created a 3D model of a tank fitted with pipes and fittings. In addition, we have also designed the skid to support the tank. This skid-mounted tank unit was designed to comply with relevant Australian Standards

Performing studies to select and size shell-and-tube and plate heat exchangers for the renewable energy industry. Conducting process calculations to ensure fluid flowrate and temperature profile to ensure high performance

We provide system design and fabrication of sea water reverse osmosis (SWRO) mobile desalination unit housed in 40-foot containers. Our system comes with strict in-house quality control. In addition, independent certification of the system's fit-for-purpose can be arranged