October 13, 2008
Platinum Pipe Award 2008 Winners
Applied Flow Technology is pleased to announce the winners of the Platinum Pipe Award 2008 are Energoprojekt Katowice of Katowice, Poland and Southern Peru Copper of Toquepala, Peru.
Energoprojekt was the winner in two categories, use of software features and model creativity/appearance, for their AFT Arrow model of a power plant flue gas desulfurization system while Southern Peru Copper won the correlation to test/field data for their AFT Fathom model of copper mine pipeline system.
Submitted by Energoprojekt engineer Adam Klepacki, the flue gas desulfurization model employed a number of ingenious modeling techniques, including:
- Using a fan/compressor junction with multiple configurations to simulate the natural draft effect of the system discharge stacks
- Simulating the heat and mass addition effect of the FGD plants with a heat exchanger and branch junction
- Utilizing the Arrow GSC Add-on Module to simulate ID fan speed control to maintain boiler furnace exit pressure
Southern Peru Copper needed to develop a pipeline system design for recirculating solution in an acid leaching plant. As explained by their engineer Arturo Saenz, using AFT Fathom allowed them to investigate multiple system configurations and component sizing to confidently arrive at a design that met performance requirements and provided the best pumping efficiency. As part of testing and qualification, system performance was measured under a variety of operating conditions with the AFT Fathom predicted flow matching the measured flow within 1%.
For their winning entries in two categories Energoprojekt won the equivalent of four AFT Arrow licenses, which they applied towards two AFT Impulse licenses. Southern Peru Copper was awarded two AFT Fathom licenses.
Tip of the Month - Limiting Goal Seek & Control Variables to a Specified Range
Applicable to: Arrow GSC Add-on Module, Fathom GSC Add-on Module
When searching for a variable value that will yield a specified goal, GSC will investigate all possible variable values. There are some cases, however, where you may want to limit the range of investigation. An example might be using GSC to find the pump or fan/compressor speed to yield a defined goal. On its own GSC will consider any speed value from 0% on up. You may want to limit this to a maximum of 100% speed and/or some lower speed limit based on manufacturer's information or experience.
This can be readily accomplished using the 'Upper Bound' and 'Lower Bound' columns in Goal Seek and Control Manager. When specifying upper/lower bounds, keep in mind that you may make it impossible for the specified goal to be reached because of the limits imposed by the specified bounds