Liquid or incompressible flow systems can be solved using the Darcy-Weisbach equation with fluid physical properties solved throughout the system. Open or closed-loop system can be modeled and heat transfer can also be considered.
This example is from a Smelter Cooling Circuit. This plant includes 26 plate heat exchangers, 24 orifice plates and 3 pumps. All orifice plates and circulating pumps in the system were automatically sized by the software.
Other systems modeled include fire protection, district heating/cooling, mine dewatering, utility, crude oil, lube oil systems, irrigation circuits and desalination plants.
FluidFlow does not make simplifying assumptions of gas ideality but solves for real gas conditions using an equation of state. The gas physical properties are established throughout and the system solved using a marching algorithm for small pipe increments. The conservation equations are solved and acceleration losses determined. Gas mixtures can also be considered.
This example is from a Blast Furnace Gas System which considers a gas mixture at 60 mbarg inlet pressure.
Other systems modeled include natural gas transmission lines, carbon dioxide systems, compressed air, nitrogen systems, steam lines, and dust extraction systems.
Two-phase systems are solved for differential pipe length. Flash, liquid holdup and flow regime calculations are solved for each pipe segment and a flow pattern map plotted for each pipe. The software also acknowledges that pressure loss per unit length changes as the two-phase fluid flows through the system.
This example is from a Condensate Recovery System. This system consists of 671 M of pipework collecting condensate from three separate locations. Flashing occurs across a number of valves & the physical properties including condensate quality is established throughout the system.
3 Other systems modeled include Geothermal, power generation, petrochemical plant, cryogenic plant and systems.
Choose from four available non-Newtonian viscosity models: Bingham Plastic, Power Law, Herschel Bulkley & Casson.
This example is a 40% tailings slurry system with a flow rate of 700 m3/h. Other sample systems modeled include food process, mine tailings and paste backfill. FluidFlow is used widely by EPC companies to design and model food process and mine site non-settling slurry systems.
This example is of a mine tailings system transporting a slurry with 60% solids concentration by weight. Choose from five solution options. The software helps characterise your slurry, determine deposition velocity, consider solids derating, determine solids delivered and also identify potential line blockage or sanding.
Other systems modeled include hydro transportation of ores and minerals, dredging, waste water and cross-country slurry pipelines. The software is used widely in the mining industry.
The Scripting Module allows you to take your steady-state solutions a step further. Scripting can be used to perform a wide range of dynamic simulations.
You can write your own scripts using Basic or Pascal. Scripting is used to look at scenarios such as tank fill/drain times, pump station optimization, flare stack depressurising, or equipment performance over time.
Scripting allows you to make changes to any flowsheet element (node or pipe) via a Pascal or Basic-based scripting language and then study the effects of these changes at any other flowsheet component or component. Scripting therefore allows sequential steady-state calculations. These may be a sequence of “what-if” calculations, say trialing different orifice sizes to achieve a desired flow balance, or a time-based sequence of calculations, based on a user-define time increment.
Note: Flite Software can provide a Scripting service. Send us your steady-state model and the specification of the extended time requirement (or other component action) and we will write the script for you. We charge for this on a hourly basis.
FluidFlow includes heat transfer functionality on all modules, as standard. Engineers can study heat transfer effects at heat exchangers, pipes and junctions. The software is provided with a library of pipe materials, insulation materials and soil types for buried pipe calculations.
FluidFlow also allows you to change insulation thickness helping you to identify the most economic insulation thickness for your system.
Engineers can choose from a range of heat transfer options:
- Buried pipe calculations.
- Pipe heat loss/gain calculation.
- Fixed heat transfer rate.
- Fixed temperature change.
- Ignore heat loss/gain.
TOTAL HEAT BALANCE:
This means you need only specify fluid temperatures at boundary components. All other temperatures as well as fluid phase states are calculated by the software. Temperature effects of pressure changes, heat loss or gain from the surroundings and heat exchange made at each network component make heat transfer an automatic part of network flow calculations.
Automatic Equipment Sizing
FluidFlow software offers a fast and effective approach to automatically sizing piping and associated equipment. This helps accelerate the design process, saving the designer both time and capital cost. Pipes can be sized according to economic velocity, by velocity or by pressure gradient.
Size a wide range of components to relevant standards by taking into account the effect oof connected pipework and fittings.
Almost any type of line equipment can be modelled including multiple pumps (end-suction centrifugal, rotating positive displacement, reciprocating) and fans/compressors in parallel, series and booster configuration; flow control, pressure control, non-return and relief valves; boundary conditions such as reservoirs, tanks and nozzles; etc; cyclones; shell and tube/plate exchangers (pressure loss and heat change), cooling towers, jacketed vessels, bursting discs, 3-way valves, knockout pots etc.
Accuracy of results
The results generated by FluidFlow are rigorously tested and verified against published data and real-world operating systems on a continuous basis. An extensive library of ‘Quality Assurance’ test models are also installed with the software. FluidFlow offers the very latest solution technology and has been used successfully in industry since first launched in 1984.
Quality Assurance is an integral part of our business ethic. From software design approach through to released product, FluidFlow is developed to the highest quality and standard. We are a fully accredited ISO 9001 company.