v5.5.5 (2024-08-21) - Fix display of rating points results for single-stage systems - Rename backup heater to auxiliary boiler - Additional outputs for heat pumps with/without auxiliary boiler v5.5.4 (2024-06-12) - Reworked loading/saving of project and profile files, fixing a reported bug and preventing many other bugs. - Failed save can from now on be detected by files with .part extension. v5.5.1 (2024-06-03) - State points and log(p)-h diagram available for more cycles. - Updated documentation for new functionality in Rating Points. - Quality improvements to functionality introduced in v5.5 - Improved experience when changing license types. - Improvements for water consumption / rainwater tank calculation tool, now respects unit system. v5.5.0 (2024-03-18) - Heat pumps: One-stage transcritical heat pump model, with water-cooled gas cooler - Refrigeration: Two-stage transcritical with open intercooler - Condenser model: Improved model for hybrid cooler / adiabatic gas cooler - Transcritical operation of gas cooler fans can now be estimated at part load. Transition zone of gas cooler control now also slides fan control approach. - Full update of Bitzer product catalogue - Full update of Bock product catalogue - Dorin: Larger CD600 models, and LSPM motor models - Frascold: Full update of hydrocarbon compressor data. SRC, CX, FVR series. - Pre-release: Displaying state points and log(p)-h diagram for most single-refrigerant systems - Pre-release: Water-cooled evaporator, allowing for custom source temperature profile. - Pre-release: Limit on potential/available cooling capacity for heat pumps v5.3.10 (2023-11-03) - Update TeeChart and FastReports to newer versions, in attempt to fix issues reported by some users when generating reports. - Fix: When condenser fan set to run with compressors, and compressor pack cycles on-off, in some cases condenser does not turn on-off. v5.3.9 (2023-10-03) - Fix: Improvement of envelope display for compressors with Te/Pgc polynomials for subcritical operation. - Add preference value for minimum capacity ratio before parallel compressors are enabled. - Fix: Allow using Dorin's CD compressors for subcritical operation with other subcritical-only compressors with Te/Tc polynomials - Fix: 'Adjust ambient temperature by adding' field not saved to project file v5.3.7 (2023-02-06) - Fix loading projects with generic (auto-generated, hidden) compressors - was not respecting refrigerant choice - Further improvement to solver of Two one-stage, common condenser v5.3.6 (2023-02-03) - Fix stability of Two one stage, common condenser solving - Fix calculation stability for mixture-based refrigerants such as R407A above a component's critical pressure - Error in unit conversion in Two one-stage condensing temperature solver, when using something else than Celcius as temperature input v5.3.4 (2023-01-19) - Fix issue with new splash screen on some systems - Change how divide by zero etc. are handled - Fix missing translation of some buttons and texts, especially in Update Version dialog - Revert forcing LT subcooling to 0K for cascade systems. Will be revisited for v5.4 - Update Spanish manual v5.3.0 (2023-01-09) - Rating points calculation UI added - More ejector cycles added: Two-stage transcritical ejector with/without parallel compression. One-stage transcritical ejector with parallel compression - Added auto-sized compressors with fixed efficiency for all cycles, allowing to do rough initial calculation before choosing compressors - Removed 0% capacity inputs for ground-source evaporator - no passive heat transfer possible in that case - If useful superheat above DT with ambient, prevent calculation. Small effect on compressor energy consumption. - Fix: Heat pump evaporator fans/pumps not cycling on-off simultaneous with on-off compressor pack, but was simulated as always-on in that case. Now simulating simultaneously on-off, as with refrigeration system condenser fans. - Show thermal energy delivered in Summary table. - Fix issue introduced in v5.0: LT liquid temperature in closed intercooler and liquid injection cycles not respecting MT DTsc - Increased solving accuracy of liquid injection and two-one-stage common condenser cycles as function of Tc - Known Evaporator Size for refrigeration is now auto-dimensioned with air cooler nominal DT. - Fix month results chart for "two one-stage" system: LT condenser power was not included in chart. - Restricted Free Cooling so it only can cover MT cooling in two-stage refrigation systems. - Improvements to equal cooling load behaviour when comparing one-stage with two-stage refrigeration systems - 1856 new/updated Dorin compressor polynomials from CD, CDS, H, HEX series - Introduce new loading / splash screen v5.2.3 (2022-04-25) - Fix two bugs with calculating parallel pack power consumption. Affects results. #214, #216. - Fix: Crash when using free cooling on 64-bit version - Show warning instead of crash report when loading project files with systems not yet included in current software version. v5.2.2 (2022-03-29) - Fix WCond in transcritical calculation when heat recovery takes 100% of heat. Affects results. #208 v5.2 (2022-03-11) - Add 'One-stage transcritical, ejector' model - Add 'Two-stage Cascade heat pump' model - Frascold: Import 511 new CX and SRC compressors for R134a, R290, R448A, R449A, R513A, R1234ze(E) - Bitzer: Import 837 new 60 Hz compressors, 365 new 50 Hz compressors, and update 472 existing 50 Hz compressors. CSH/CSW/HHK/HS/OHK/OS families. - Improve display of Suction/Discharge side on smaller screens, by placing scroll bars more optimally. #180 - Fix: CO(S)P calculation for heat pumps in plots and exports now based on condensing capacity - these were based on evaporator capacity until now. Now COSP values align properly with Average COP in Summary. #193 v5.1.1 (2021-09-23) - Fix: R1234ze(E) compressors not shown, due to spelling mismatch between compressor data and refrigerant data - R507 now shown with its correct name R507A - Fix: For two-stage transcritical, TCondAmb shows wrong value when no mechanical cooling is needed v5.1.0 (2021-08-30) - Improve stability of cooling tower condenser model, so Tc is increased to a useful level if capacity too low #170 - Fix units of cooling tower condenser outputs 'mWater' and 'VAir'. Now plotted/exported data is respecting nomenclature of [kg/h] and [m3/h] respectively #170 - Fixed crash on 64-bit in cooling tower simulations, related to 100% relative humidity #170 - Fix: Qe_required_mech for two-stage transcritical system omitting LT contribution, leading to poor warning messages #169 - Now 'Cooling capacity' warnings show if they are generated by LT or MT pack. #169 v5.0.3 (2021-06-15) - Fix convergence of variable-speed parallel compressors at low capacities v5.0.2 (2021-06-03) - Fixed simulation of variable-speed parallel compressors - Reduced peak memory usage during simulations, by optimizing the processing order of calculation results (works best if first system is reference system) - Decrease memory usage of report generator, by enabling file system caching of report, to try to avoid Out of Memory issues reported by some users - Update several translations since new version release v5.0.0 (2021-04-15) - High impact: - New refrigerants: R32, R448A, R449A, R450A, R513A, R1234yf, R1234ze(E) - Registration is no longer optional for free usage - Demo version introduced - registration-free, only allows R22 systems - Educational version introduced - requires application via ipu.freshdesk.com - Other: - Prepared refrigerant: R1233zd(E), but no compressor data available yet - Added R32 compressors from Bitzer Orbit/+/FIT series (note: Economizer cycles not supported yet) - Parallel compression can now operate simultaneous with flash gas bypass. See user manual 4.2 - Corrected envelopes for Bock HGX CO2 transcritical - evaporation temperature was in wrong unit - Fix rendering of plots in Report function - font sizes were wrong - Fix: Unit conversion not applied in some input/output fields v4.6.3 (2021-03-26) - Include feature to check for available updates. Feedback appreciated v4.6.2 (2020-10-28) - Fix capacity of transcritical and Ecoline Varispeed compressors, which accidentally got overwritten in v4.6.1 v4.6.1 (2020-06-17) - Add a few Bitzer screw compressors which did not get imported properly in v4.3.4 - Show scroll bars if application window is too small to display all content - Fix issue #126: When heat recovery forces system to transcritical operation, fan power consumption goes to 0% instead of 100% - Fix issue #133: When heat recovery active in transcritical system, minimum subcritical condensing temperature ignored - Fix issue #138: Transcritical control behaving differently in 64-bit version of Pack Calculation Pro, leading to different simulation results - Fix issue #139: For "two-one-stage, common condenser" system, fan and pump power consumption in 'Summary' and 'Table' tables not matching with plotted data or Excel export - Fix issue #140: Transition zone between subcritical and transcritical behaving wrong, leading to jump in Tgo when switching from subcritical to transition - Added Catalan (100%), Greek (80%), Japanese (38%), Swedish (50%) translations - Improvements to various existing translations - Update translation toolchain to integrate with Weblate v4.4.6 (2019-11-08) - Fix IWEC2 weather data parsing - was reading data 8 hours wrong - Fix envelopes for Bock NH3 compressors in F-series - Import HGX subcritical Bock compressors - Update Dutch translations v4.4.4 (2019-05-03) - Add IWEC2 weather data files for commercial users - Include 64-bit version of the software - Fix crash when using custom condenser with DT and Qc both set to zero - Fix issue #101: Crash with Economy calculations when interest rate is equal to inflation rate - Fix issue #102: Flooded evaporator settings not saved to file - Added Spanish translation of manual, made by AEFYT v4.3.4 (2019-01-10) - Add Spanish, Portuguese and Brazilian portuguese translations - Added new Bitzer compressors (i.a. Ecoline, Ecoline varispeed, ME series, 2- and 6- cylinder Octagon transcritical CO2, Ecoline+ series) - Added new Bock compressors (EX-HG, HG, HA, HGX, F, FK) - Added Frascold compressors (TK, SK2, SK3) - Updated envelopes for existing Bitzer compressors - Added weather data for Mauritius - Profile Editor: Made possible to directly edit profile values in the table - Improvements to tab order of forms - Ability to open project files directly when clicking on them - Fixed bug: If parallel compressor pack has only one compressor which is fixed-speed, then too high parallel compressor pack capacity is never reported (shown as 100%) - Fix crash in report generation, when user logo not available - Fix crash when using water-cooled systems - Update logo and website links v4.2.0 (2015-09-12) - New report generator - Updated/added several Bock compressors - Updated/added a few Copeland compressors - Fixed bug in heat recovery for transcritical systems (limits used are now based on ambient dry-bulb, not wet-bulb) - Fixed bug in transcritical systems using hybrid cooler - Fixed pump energy consumption for hybrid cooler - Fixed bug that occurred if heat recovery in transcritical systems meant subcooled liquid after high pressure valve v4.1.1 (2015-02-26) - Bug-fix release, fixing an error occurring when calculating systems using R407F as refrigerant. v4.1.0 (2015-02-06) - Parallel compressor systems for both one-stage and two-stage transcritical systems (only available for users with a commercial license) - R407F compressors included (only available for users with a commercial license) - New Copeland R744 scrolls added - Several new Bitzer compressors added - Documentation (help file) updated, explaining settings for parallel compressor systems - Fixed a couple of minor bugs related to calculations and temperature profiles v4.0.0 (2014-02-27) - The name has changed to Pack Calculation Pro - Support of different units has been added (°C, °F, BTU…) - Documentation (help file) updated - Fixed bug related to automatic dimensioning of gas cooler - Fixed a couple of minor bugs. v3.0.8 (2013-10-21) - Updated Bock CO2 compressors - Updated Bitzer compressors (hermetic and semihermetic screws are now included) - Added plot of Qe_del_only_MT (i.e. delivered cooling on MT evaporator only - Qe_del_tot_MT included condensing heat from LT system) - Fixed bug related to heat recovery (when ambient temperature was below temperature where heat recovery should be maximum) - Fixed bug related to systems with pumps (control was not implemented correctly) v3.0.7 (2013-07-05) - Translations to the following languages added: - Russian - Romanian - Added several new, and updated several, Bitzer compressors - Added transcritical Copeland Stream compressors - Fixed a number of minor bugs, including: - Proper saving of LCC settings - Correction of calculation of off-design capacity - Added hybrid cooler model (simple efficiency model) - Fixed drawing of two-stage with liquid injection v3.0.6 (2012-09-14) - Changes in installation to better support multi-user PC's and users without administrative privileges - Dutch and French languages added/completed - Published a translation package, which enable users to make their own translations v3.0.5 (2012-08-24) - Fixed bug in "Two one stage, common condenser" systems - PackCalc now comes in the following languages: - Bulgarian (translation not complete) - Czech (translation not complete) - Danish - Dutch (translation not complete) - The translation has been provided by members of the EU-project: "Improving Cold storage Equipment in Europe (ICE-E)" - Added Copeland Stream compressors + added and updated several scroll compressors v3.0.3 (2012-06-11) - Fixed bug in load profile handling. Caused wrong results if: - User created custom load profile - The load profile was not saved to disk - The systems that where compared where not created using the "Copy system" button - If all of the above was true, then all systems where not compared using the custom load profile (the ones created using the "Add System" button, where using a constant load profile) - Added help button to explain all curves on the "Plots" page v3.0.2 (2012-05-28) - Fixed bug when using speed controlled fans and free cooling - Fixed bug when using heat recovery - Fixed minor bugs (text strings, etc.) - Added possibility to change default DT gas cooler out when running transcritical. See "Options|Preferences|Calculation|Condenser control" - Added possibility to have different load profiles for the different systems (currently experimental...). See "Options|Preferences|Calculation|Suction side|Load profile" and "Options|Preferences|Calculation|Heat pump|Load profile". Default is that load profiles are forced to be equal for all systems. - Removed discontinued Copeland compressors v3.0.0 (2012-03-13) - Heat pump model included - One stage system - Air and ground source - Space heating only - Auto-generated compressors. Specify cooling or heating capacity instead of selecting compressors from database - Groundwater cooling can be used as supplement to mechanical cooling (one stage systems only) - Only ATES systems with full thermal balancing included - Instead of specifying the evaporation temperature, it is now possible to specify the evaporator size (for one stage system). I.e. the evaporation temperature is output from calculation. - Updated ZB and ZF compressor models from Copeland - Warnings and errors shown in detail on both monthly energy consumption diagram and summary table - Icon illustrating calculation state next to "Calculate" button (emphasize warnings) - Plots changed so that weather data can be easily displayed - Misc improvements and bug fixes... v2.3.1 (2011-04-01) - Added possibility to include water consumption (and rain water tank) in LCC calculation for cooling tower v2.3.0 - Bug fix so that new Dorin compressors are installed when updating an old version of PackCalc - Changed month and day names so that they are in the same language as the rest of the program (English) v2.2.9 (2011-02-11) - New Dorin range of subcritical compressors (SCC range) added - New Dorin range of transcritical compressors (CD range) added - Improved model of Cooling Tower developed by Danish Technological Institute and Vestas Aircoil - Power consumption when using free cooling included - Possible to specify charge for both high and low side in cascade systems when calculating CO2 emissions - COP calculations for two-stage systems fixed (now condensing heat from low stage is not regarded useful when calculating overall COP) - Several minor fixes and changes... v2.2.8 (2010-09-10) - Load profiles from building simulation program BSim can now be imported. See appendix D in user manual. - 60Hz Dorin CO2 compressors have been included - Minor changes... v2.2.7 (2010-05-03) - Change in calculation of capacity for transcritical compressor in subcritical design condition (change only affects the compressor selection - not the yearly calculation) v2.2.6 - Bock transcritical compressors updated - Dorin SCS compressors added - Changes to userinterface so that users are presented to less options. This can be controlled in Options|Preferences menu v2.2.5 - First proper version