history

Made with Xara

27.01.2012 - version 1.39 and 1.40 - Fines balance improved - New trends added - Data can be also saved as CSV, now - Few bugs fixed - PID algorithm improved - Fan Pump is controlled by PID controller - Graphics slightly changed 08.06.2011 - version 1.3.37 - Web dewatering model improved - Fines distribution model improved - New trends added - Few bugs fixed - Pumps and valves are vector objects, now - Code slightly optimized 28.12.2010 - version 1.3.19 & 1.3.20 - Graphics changed - Hydraulic headbox model is used now. Headbox control improved (consistency, EFFLUX and pressure control) - Few bugs fixed - New trends added (headbox pressure, EFFLUX, headbox gap opening ratio) - CD control modified (but this option is still under construction) 01.12.2010 - version 1.3.17 - II water chest level control added, silo volume change bug fixed, minor changs in graphics. 18.05.2010 - version 1.3.15 - II water chest level control added, silo volume change bug fixed, minor changs in graphics. 15.04.2010 - version 1.3.14 - Bug in fines calculation fixed, time speed interface changed, PM speed optimization controller fixed, "Save Simulation" improved and fixed, port to further algorithms and calculations made, "Division by zero" during start simulation fixed, compatibility with Win7 64-bit checked. 09.06.2009 - version 1.3.12 - Bug in retention calculation fixed, dependency between FPR and wire retention improved. 05.06.2009 - version 1.3.1.1 - Basis weight optimize option added, speed optimize option added, valve selection improved, simulation can be saved anytime now, minor code optimization and bugs fixed. 25.05.2009 - version 1.3.1.0 - "Collect and Save Data" option fixed. 20.05.2009 - version 1.3.0.9 - Hydropulper calculations improved (but still under development), disc filter calculations improved, statistics window fixed, minor bugs fixed, part of code optimized, PID controller algorithm improved, minor changes in main menu. 07.05.2009 - version 1.3.0.8 - "Paper 3D" option added (but it's still under development), hydropulper seems to be working now (still under development), retention has been splitted on FPR and Total Wire Retention, several major and minor bugs fixed, additional code optimization, ini file is compatible with windows ini file system now, minor changes in graphics, hydropulper, machine chest and pulp tower have adjustable volumes, statistics screen has been changed, Trends window improved. 07.01.2008 - version 1.3.0.4 and 1.3.0.4a - major and minor bugs fixed, * "run immediately" option added in "New simulation", part of code optimized, main menu has been reorganized (simplified, I guess), many options have been grouped in single "Process Settings" tab, time control moved from main menu to main screen for direct access (no need to select the menu), shower water can be directed to silo or 2nd water chest now, problems with valve selecting fixed, gradient background for trend charts added, calculations of fines consistency again changed (however I'm still not satified with it), minor changes in alarm service procedures. ------- ver. 1.3.0.4a - few other bugs found and fixed 19.12.2007 - version 1.3.0.3 - Some major bugs fixed, basis weight profile added (I'm still working on the CD control), calculations of fines consistency changed, 2nd destination for shower water is prepared, program and all additional files are provided in single setup file 01.10.2007 - version 1.3.0.2 First public release. Notes: Although there were many earlier versions, I'm not going to back to them. Let's assume the history starts from this version ;-)