The new service release for CONVAL 12 is now available for download.
THE CONVAL SERVICE RELEASE 12.2 PROVIDES THE FOLLOWING IMPROVEMENTS:
New User Interface
- The open calculations are displayed as tabs in the title bar of the calculations window.
- Visualization of modified calculations that require to be saved
- The management of templates, such as user-defined fields or units of measurement, has been revised. You can either change the data only for the current calculation or create a template for all calculations.
- Various settings (e.g. program settings, printing settings, etc.) can be saved in profiles. These profiles can also be used as a backup or to transfer settings to a different computer.
- It is now possible to change the unit of measurement of a single parameter without changing the unit of the linked parameters.
- The keyboard shortcuts have been revised to make it easier to use CONVAL without a mouse.
- Problems with incorrectly positioned dialog windows when using multiple monitors have been fixed.
General
- Ability to print schematic drawings of devices, such as for dimensioning
- Easier adding graphics to headers and footers
- Revised help system
- Minor improvements and fixes for stability problems
New Calculation Module: Analyzer
- Calculation of analyzer frequencies and stresses according to IEC/TR 61831 and ASME PTC 19.3
- Calculation of probe lag time from sampling point to the analyzer for gases and liquids
Control Valve
- Noise Prediction for valves with acoustic insulation according to ISO 15665
- Corrections to cavitation and noise prediction for overcritical fluids
- Improved reliability analysis for abrasive media
- Improved support for butterfly valves and ball valves
- Optional visualization of valve load as angle of rotation
- Improved support for characteristics whose maximum is not at full valve opening
- Minor improvements in the calculation of multi-stage resistance structures
- Revised valve coefficients for generic multi-stage valves
- The seat sealing type can be specified as leakage class in the valve configuration.
- In addition to the seat diameter, the valve stroke is also displayed for linear valves.
- Minor improvements
Control Valve Database
- Improved support for butterfly valves and ball valves
- Import and export of characteristics and valve coefficient curves as a function of the angle of rotation
- Improved support for curves whose maximum is not at full valve opening
- Minor improvements and fixes
Actuated Valve
- Easy-to-read comparison of required torques with the actuator torques
- Minor improvements
Differential Pressure Flow Element
- Improved support for wedge flow meter and segmental orifices
- Minor improvements
Restriction Orifice
- Corrected calculation of the bore spacing of multi-hole orifices with outlet bevel
- Minor improvements in the calculation of multi-stage designs
- Separate option to enter the upstream pipe
- Correction of temperature calculation for gas mixtures
Pressure Relief Valve
- Update to the latest edition of ISO 4126-10:2024 for two phase flow sizing
- Improved calculation of pressure relief valves with two-phase flow
- Correction in calculation of two-phase flow with highly viscous fluids
- Improved calculation of the volumetric gas content in the valve throat of liquid-gas mixtures
- Corrections in the calculation of the mass flow rate at thermal expansion
- Reworked calculation of pressure loss in the downstream pipe considering the geodetic height
- Improved support for open discharge pressure relief valves
- Minor improvements and stability fixes
Rupture Disc
- Update to the latest edition of ISO 4126-10:2024 for two phase flow sizing
- Improved calculation of rupture discs with two-phase flow
- Calculation of mass flow rate to be discharged in fire case
- Minor improvements and fixes
Thermowell
- Support for straight helical thermowells
- Minor improvements
Level Calibration
- Minor improvements in the visualization of calculations with several units of measurement
COM Server
- Fixed issues with exporting characteristics graphics
THE CONVAL SERVICE RELEASE 12.1.1 FIXES THE FOLLOWING BUGS:
Pressure Relief Valve
- An error in the determination of the mass flow to be discharged in the event of thermal expansion in blocked heat exchangers, pipelines, and vessels has been fixed. The mass flow was calculated too large in older CONVAL versions, so that the safety valve was oversized.
Steam Contitioning Valve
- The values for the mass flow rate qm or the flow coefficient kv were not or not completely displayed in the calculation mask.
THE CONVAL SERVICE RELEASE 12.1.0 PROVIDES THE FOLLOWING IMPROVEMENTS:
General
- Minor improvements and fixes for stability problems
- User-defined fields are indicated when they are linked to a calculation.
- Fixed issues printing multilingual user-defined fields.
- Fixed issues with printing graphics in headers or footers.
- Issues with the duplicate check when opening and copying calculations with gas or fluid mixtures have been fixed.
- Minor improvements when exporting calculations
- Improved functions for automatic saving of calculations
- Ability to repair databases via an Internet download function
- Improved compatibility when opening calculations created with older CONVAL versions
- Revised help system
Control Valves
- Display of a warning on the first dialog page if the valve does not cover the operating point
- Improved calculation of the mass vapor content at the valve outlet
- The mass flow rate for the heat exchanger feed can be calculated by entering the heat requirement of the heat exchanger.
- Display of viscosity for two-phase flow in standard view
- Corrections in calculation of cavitation index for two phase flow
- Minor improvements and fixes for stability issues
Actuator Forces of Control Valves
- The stem diameter is now applied when importing a control valve calculation.
Differential Pressure Flow Elements
- The flow meter calculation according to ISO/TR 15377 has been updated to the 2023 edition.
- The flow meter calculation according to ASME PTC 19.5 has been updated to the 2022 edition.
- The calculation of residual pressure loss Δϖ for venturi tubes and venturi nozzles has been revised.
- Fixed issues with opening calculations created with CONVAL 5 or 6.
- Inconsistencies in in the presentation of the required outlet lengths for 0.5% uncertainty have been fixed.
- Minor improvements
Restriction Orifice Plates
- The calculation of multistage designs has been revised:
- Correction of stability issues
- Table display with unit information
- Option for constant nominal diameter of each orifice plate
Rupture Discs
- Improved calculation of rupture discs for two-phase flow with manual input of the mass flux
Pressure Relief Valves
- Improved calculation of the mass vapor content in the valve outlet
- Corrections in the calculation of the mass flow in a fire case
- Corrections in calculation of pipe data (pressure losses, reaction forces, etc.) with the required mass flow rate
- Improved notification when valve dimensions are not in accordance with API 526
- Improved notification when the orifice size is too small for flashing valves
- Minor improvements and fixes for stability issues
Thermowells
- The graph setting for the stress analysis of thermowells is saved with the calculation. A default value can be set in the program options.
- Minor improvements
Shell-and-tube Heat Exchangers
- Minor improvements to the input of mass and volume flow rates
Substance Calculation
- Calculation of melting temperature of pure substances and mixtures
- Calculation of the dew point temperature of humid gases
- Calculation of the Wobbe index to characterize the quality of fuel gases (e.g. natural gas, city gas)
- Searching the substance database in all languages supported
Pressure Relief Valves Database
- Minor improvements and fixes for stability issues
COM Server
- Fixed issues with releasing memory when the COM server is running for a while
OVERVIEW OF THE NEW FEATURES OF CONVAL 12.0
SOFTWARE LEASE OPTION – CONVAL 365
EXTENDED LICENSING MODELS
CONVAL supports different licensing variants:
- Network licenses, which are installed on any workstation or server in your company, and which manage the number of simultaneous users of CONVAL. The installation of the actual calculation software can be done locally on the client or on a network share.
- Personal licenses, which are provided by F.I.R.S.T. GmbH in the cloud and are bound to a named user. These licenses can be checked out temporarily so that work is still possible even without an Internet connection.
THE NEW USER INTERFACE
- Clear, contrast-optimized calculation forms based on popular office programs
- Input pane with variable width for optimum use of the screen width
- Dynamic fading in and out of parameter captions in multi-column input mask when width is changed
- Improved scaling support for high-resolution screens
- Language support for English, Chinese, German, and Russian
ENHANCEMENTS AND IMPROVEMENTS AT RELEASE START
General
- Revised help system
- Setting option for the font of tables for the printout
- User-defined fields
- User-defined fields can be entered in multiple languages.
- Drop-down lists with or without the option of free input are supported.
- Notes can be added to all the user-defined fields.
- Templates
- Extended options for creating and managing calculation templates
- Improved support for export templates in Excel format
Control Valves
- Minor improvements and fixes for stability issues
- CONVAL now also supports valves of the "Dilating Disk" type (valves with an iris shutter-like mechanism).
- Improved calculation of fluid conditions in the Vena Contracta of multi-stage valves
- More accurate sound calculation for multi-stage valves if the data of the last stage is not known
- Improved recommendation for the optimum Cv100 value when several operating points are given
- Display of flow velocities in the upstream and downstream pipe for all operating points
- When printing out calculations with diaphragm valves, the valve stroke is not displayed
Actuated Valves
- Adaptation to the recently issued version of ISO 5115 " Industrial valves - Part-turn valve actuation" (11/2023)
Differential Pressure Flow Elements
- The calculation of differential pressure flow elements now supports the input of up to three operating points. The names of the operating points can be customized.
- For concentric orifices, in addition to the pressure tapping points defined in the standards, the distances between the pressure tapping points can optionally be entered freely.
- Improved design when using the calculation reference "C and ε with 2/3 sqm" by displaying both operating states
- Calculation of the permanent pressure loss Δϖ for Venturi tubes
- Improved support of the extended uncertainty calculation in tables and graphs
- Numerous other minor improvements
Restriction Orifices
- Minor improvements and correction of stability issues in multi-hole orifice calculation
- Table view of individual orifices in multi-stage arrangements with more detailed information
- Display of inlet and outlet flow velocities
Pressure Relief Valves
- Minor improvements and fixes for stability issues
- Calculation of the property data in the outlet of the safety valve, including the calculation of the mass vapor content for flashing liquids.
- Determination of the mass flow to be discharged in the event of thermal expansion in blocked heat exchangers, pipelines, and vessels (thermal relief valves)
- Determination of the maximum pressure of the blocked pipeline in the event of thermal expansion in pipelines
- Calculation of the banking-up pressure at the valve outlet with supercritical gas flow
- Calculation of the discharge function Ψ and discharge power Φ for compressible flow
- Graphic display of the corrections for the discharge coefficient for back pressure and lift stop
- Calculation of the steam pressure coefficient for steam according to ISO 4126-7
- Improved calculation of two-phase flow pressure relief valves
- Display of the maximum mass flow rate (maximum mass flow rate = certified mass flow rate / 0.9)
- Calculation of pipe data (pressure losses, reaction forces, etc.) optionally with the required mass flow rate instead of the maximum mass flow rate
- Improved support of temperature-dependent curves for the maximum set pressure
- Improved calculation of safety valves according to API 526 (08/2023)
Thermowells
- Thermowell calculation now supports input of up to three operating points. The names of the operating points can be customized.
- Pass/Fail analysis of dimensions, frequencies, and stress limits for up to three operating points
- Stress analysis can now show the dependence of stress limits on frequency ratio, flow velocity, and now flow rate.
Tank Depressurization
- Minor improvements and fixes for stability issues
- Display of flow velocity at valve outlet
Rupture Discs
- Improved calculation of two-phase flow rupture discs
Pipe Wall Thickness
- Pipe wall thickness calculation according to ASME B31.3
Substance Database
- Numerous viscous oils have been added to the substance database.
- Improved calculation of mixtures of liquids and gases
- Calculation of isothermal compressibility χ for media from the Thermodynamics module
License Management
- Temporary check-out and check-in of network and named user licenses so you can continue to work without a net-work connection.
- Optimized settings to make it easier to find available licenses
Details about other improvements and error corrections can be found on the download page in the version history and in the known bugs section.
The service release can be downloaded free of charge.
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