New in ICE 4.5 (rel. to ICE 4.2.1) ================================== * Supported import of zones with custom shape. The shape of these zone is not editable. Multiple zones can be imported from one geometry file. * Supported import of building bodies with custom shape. If the shape has one horizontal floor, no outward leaning walls and no holes, it is editable. If not, it is not editable. Multiple building bodies can be imported from one geometry file. * Supported sampled discrete models (using sampling clocks). * The resources imported from shared files are automatically updated when opening ICE system. * Plant can be replaced with an ESBO plant. * New 3d look: horizon background, SketchUp-like look, shadow visualization with shadow falling on ground, ESBO-like colors of walls, possibility to toggle display of wall thickness, x-ray view of external shades, imported objects and IFC model. * New zone form: 3d view, summary table. * Possibility to have multiple light objects in a zone (inkl. zero lights). * An Input data report is added with collections of input data to the simulated model. * Possibility to translate .epw,.iwc,.iw2-files from the Climate file menu. * All license handling moved from the About box to the Help menu. * The network license check out box now displays the number of total and presently available licenses. * Improvements of thermal bridge calculation. * User-defined controls for some cooling and heating devices. * For equipment: Liquid water emission and utilization factor. * Diffusion in the integrated shading in the simple window model. * Supported scheduled consumption of domestic hot water. It may also be given at zone level (Advanced tab). * Calculating min and max delivered power (for each energy meter). * Time-splitted simulations Currently available only from "Run script ..." tool. * Variants of floor area calculation (system parameter FLOOR_AREA_METRIC). * Animation of ventilation air flows, window energy balance, wind and table variables in 3d view. * Possibility to have different default energy meters for fans and for pumps (depending on localization). * New "Connections" page for math models in Inspector view. * [Beta 01] In the wall editor, it is possible to open the adjacent walls and the windows, openings, and wall parts in the adjacent walls. * [Beta 03] Possibility to select and delete parts of an IFC 3D model. * Zone selection in 3D view. Click on a zone feature twice (not as fast as double-click) and the entire zone is selected. * [Beta 05] Move building bodies, zones, windows and doors inserted into building faces, imported 3d objects and bitmaps in the 3D view (select and hold down Ctrl). A move operation is aborted when pressing Esc. Possibility to lock objects from moving (Lock... button on 3D tab). * [Beta 05] The windows and openings may be inserted into building faces (in 3D view) In Beta 06 the orientation on coordinate system on faces in changed to "view from outside". * [Beta 05] Tooltips and context menu in "Code" view of math models. * [Beta 06] Added parameter "flipped" for construction of inner walls. * [Beta 07] Balconies may be inserted into building faces (in 3D view). * [Beta 07] A grid with windows, doors or balconies may be created on building faces (in 3D view). * [Beta 07] The diagnostic messages in Log window contain clickable links. * [Beta 07] Added system parameters ADJACENCY-DIST-HOR and ADJACENCY-DIST-VERT that controls the maximal distance between zones to be regarded as adjacent. * [Beta 08] Zone control macro (not yet ready). * [Beta 08] Fixed detailed window model for calculation with multiple bands in SW spectrum (at advanced level only). * [Beta 09] Keeping constant air flow through active beam in case of VAV system (as long as it is enough air supply). In older versions, the air flow was proportional to VAV air supply. * [Beta 09] Support import of IWEC2 climate files. * [Beta 10] User-defined active beams made linear (was powerlow 1.5). * [Beta 10] Possible to change type of a source constant (e.g., to enumeration type). * [Beta 10] Zone control macros may be saved to and loaded from palette. * [Beta 10] Two user-defined temperature thresholds for number of hours above the threshold (instead of 4 built-in thresholds 25, 26, 27 and 28 degrees). * [Beta 11] Possible to remove the default AHU. * [Beta 11] Using open-source "Clipper" library for some geometrical calculations. * [Beta 11] The solver is now compiled with Intel complier. * [Beta 11] "Occupancy" signal for user-defined control macro is now equal to the maximal value of occupancy schedules for all zones' occupants with positive "Number of people". (previously was the schedule of the first occupant). The first occupant is still used to determine the position where the different results are measured (operative temperature, PPD). * [Beta 11] Removed "Sizing method" from heating and cooling design (it did not work with user-defined control macros). * [Beta 12] Changes in energy meters: - In the "defaults" form, added "Default carrier" (as in ESBO) and the table of default energy meters. - If "default" is selected as value for some "Enegy meter" parameter, the actual meter depends on the energy carrier. When appropriate, a new parameter "Energy carrier" is added. - The field "Energy meter type" made non-editable. To change the type, use "Replace model" from context menu (and then edit the table of the default meters to avoid default of wrong type). - Removed "default energy meters" from macros (AHU, plant, fan coil, zone). Instead, added energy meter parameters for all models that consumes energy (e.g., fans and pumps). * [Beta 12] In the result summary tables, the tooltips show the time when the min/max occures. * [Beta 12] Supported user-defined control for floor heating/cooling and electrical floor heating * [Beta 12] When renaming a resource, an energy meter or AHU, the references to the renamed object are also modified. Unable rename resources that are referenced in protected resources. * [Beta 12] The zone sensors are now supported in all control macros, in fan coils and in macro object that are inserted into AHU, plants, fan coils and control macros (but for submacros, the connection to the zone sensor will not be visible in the advanced system). * [Beta 12] In the zone energy report, the column "External window & solar" replaced with "Window & solar". It includes all heat flow through all windows and radiation (both LW and SW) through openings. All sources of radiation are counted (solar, lighting, loads, etc.). * [Beta 12] The output files inserted in control macros are now automatically moved to zones, so they are not removed after simulation together with control macros. * [Beta 12] 3D-visualization of double glass facades. * [Beta 12] The documentation in pdf format is now available from "User guide" in Help menu. * [Beta 12] Added columns "Unmeat hour (cold)" and "Unmet hours (hot)" to the summary result table. * [Beta 12] Added few heat pump models to database. * [Beta 12] A "progress" dialog with "cancel" button is displayed while building math model. * [Beta 12] Using filtering in control of heating and cooling devices. * [Beta 13] Choice "No central AHU". * [Beta 13] Unused face models are now automatically removed after generating advanced system. * [Beta 13] Reheat coil may be controlled by central zone controller. * [Beta 13] Added to ESBO: "Generic combined heating and power base heater". * [Beta 15] Column win total U in building form. * [Beta 15] Enabled scrolling of log window during simulation. * [Beta 15] Support balanced ventilation (same massflow in supply and exhaust) [currently in outline only]. * [Beta 16] IFC import: Allow a window and the containing wall to belong to the different building storeys. * [Beta 16] The resources imported from database are automatically updated when opening ICE system (for resources imported from shared files are already updated - from version 4.5 Beta 0). * [Beta 17] New model for active beams that enables sequential connection (at advanced level) of multiple active beams and/or heating/cooling panels in the same water circuit. * [Beta 18] Added building-level central control. * [Beta 18] Supported user-defined signals from central control to local control. * [Beta 20] Keeping aspect ratio of imported bitmaps. * [Beta 21] Support schedule rules for holidays. * [Beta 21] New optional schedule in zone: "In use". May be used by user-defined controls (where it is available from "Zone proxy" object). If not given, the occupancy schedule is used instead. * [Beta 21] New output from schedule model: the time to the next switch on (is negative when schedule is on, i.e. has non-zero value). * [Beta 21] A simplifier version of BoreHole added to ESBO. * [Beta 21] Wind turbine added to ESBO (the default performance curve will be changed). * [Beta 21] New VAV option: schedule. * [Beta 21] If a climate file is stored in the folder path\project_name\, it will be stored with relative path in the documents in the projects. * [Beta 21] In 3D view, the selected objects are now visible through walls. * [Beta 22] For user-defined opening control, the opening schedule (in window form) is now treated only as input signal to the user-defined control macro (in older versions selecting "Always off" disabled the opening completely). The same is true also for shading and lighting schedules (and it was true in older versions). The schedule is disabled for devices controlled by central zone controller. * [Beta 22] Added new signals for zone sensors: "In use", "Time before use", "VAV damper position" New option for zone selection: all zones (also for multizone report). * [Beta 22] Defined control signals from supervisor macro to Plant and to AHU. * [Beta 23] The performancy curves for fans and pumps are now defined as resources. * [Beta 23] Supported custom control for reheat coil and for shading in double-glass facade. * [Beta 23] Using new links in the control macros (both built-in and user-defined). * [Beta 23] Revised palettes with advanced-level objects. * [Beta 23] Added parameter "reference floor area for projects" in the Output selection dialog. Mapped to "Total floor area". Used in reports instead of "Total floor area". (shown in report headers and used as area factor in Delivered energy report, and Comparative Report. * [Beta 23] Added option to enter the thermal bridge coefficient per floor area. * [Beta 23] Added 3 toolbar buttons: resources, database, select output. * [Beta 23] Some item in the database are renamed by adding source information. It was strange to protect resources with unclear names (such as "Ocean" or "House living"). * [Beta 23] Electric reheat coil. * [Beta 24] Revised systems energy report. * [Beta 24] Added default energy meters for el production. * [Beta 24] Changed "Night ventilation" AHU. * [Beta 24] Fixed reporting energy from reheating and fan coils in the summary tables (was sometimes reported twice - as air heat and as room unit) The supply temperature is now reported before reheating. * [Beta 24] Set wall constructions in 3D view by inserting from palette. * [Beta 24] Fixed "Wind speed" output diagram. Now contains both reference speed and the wind speed at the roof level (requires translation). * [Beta 24] New version of detailed windows database (imported from Window 7.1.5). Changes in models and functions called from models ================= * DurationMin New models. Calculate the time when all (DurationMin) or some of (DurationMax) DurationMax input signals are above the given level(s). [Beta 03] * DetWind Fixed heat transfer through missing part of shade layer (a bug fixed in Beta 06). * DetWind TPane changed to LOC variable vector and given thermal mass (possibly =0) and computed by BDF1. * CESFBEAM Rewritten for better numerical performance. One eq removed. [Beta 05] * CEWIND Fixed QSolar (now includes QAbsBFrame). Used only for zone energy report. This was a bug in ICE 4.0, but it is significant only for external windows with significant solar heat absorbsion in the inner side of the frame. [Beta 07] * FirstOrder Added an algorithmic version of model. * Butterworth New model in Control library. [Beta 08] * PSmooth Added filtering of input signal (optional). PSmooth2 PIContr Thermost * PSmooth2 Added unit conversion factor. PIContr Thermost * PSmoothV New model in Control library. Variant of PSmooth with variable limits. * DetWind Adapted for multiple bands in SW spectrum. WinType Shade * WinToZone New model for calculations with multiple bands in SW spectrum. [Beta 09] * CESUPT Added MSensor output link. * CESFBEAM AirFract made IN variable (to fix air flow in VAV case). * ALLOT New model (in Control library). Distributes limited resources. Used to calculate air flow through active beams. [Beta 10] * Duration Added control signal and threshold parameter that define the active SnapMinMax interval. [Beta 11] * ice.dll and control.dll are now compiled using Intel compiler. * Comparator Added algoritmic version of model. * HXSimCtr Prevent change in On/Off mode in consecutive steps. Improve numerical robustness when eta_ = 0, i.e. when eta = 0 or control signal ctrl = 0. [Beta 12] * CEDoor Added local variables for the zone energy report. CEOpen MOpen * EMeter2 Fixed bug in function MonthContrib that causes wrong results when compiled with Intel Fortran compiler (used from Beta 11). * Pulse The compiled code is changed after fixing a bug in SawTooth IDA translator. Some of these modules possibly did Trapezoid not work correctly. BooleanPulse FirstOrderHold Also fixed a bug in model Pulse. UnitDelay TriggeredSampler None of these models is used in standard ICE systems. TriggeredMax * SCHEDULE Removed event when switching to and from daylight saving time. * MixBxCtr Removed troublesome events on switching On and Cap (0/1) since they only appear as driving terms in diff eq XDyn. * CeSimZon Assure non-negative LW rad coeffs for ext walls and windows. * PSmooth2 Filtering of normalized signal instead of input signal. PSmoothV PIContr Thermost [Beta 15] * CCSIM Avoided division by zero massflow. * CeExhGiv New model: air exhaust with given massflow (that may be connected with air supply massflow). [Beta 17] * HCBeam New model for active beam. Supports both heating and cooling in one model. No liquid flow control (it should be modelled separately, as for HCPnl). This allows sequention connection of multiple HCBeams or/and HCPnls. * PMTMultiM Added client capacity factor (input signal) to support water clients with variable configuration. * EMeter2 Fixed detecting of contribution sign in case of negative multipliers. * MixBox Rewritten equation for TSupOut. ENTHAL call removed. [Beta 18] * CeDetZon Fixed bug in PPD formula. Coefficient multiplying PMV[i]**2 CeSimZon should be 0.2179 not 0.2719. * CCSim Fixed function UAXH (case 4 - Cross flow, both streams mixed, this HCSim case is not used in AHUs delivered with ICE). [Beta 21] * Schedule Added new output signal: the time to the next switch on (is negative when schedule is on, i.e. has non-zero value). * Schedule Fixed time events after the first year of simulation. * CeSimZon Fixed reporting of radiation from equiplent. Was reported from wrong unit. CeDetZon The reported energy consumption was wrong for zones with at least two pieces of equipment if some equipment had non-zero longwave radiation fraction. The errors did not affect the heating balance, it was only in reporting. * Face Faster calculation of pressure coefficients. Should not change the results. [Beta 22] * CeWind Bug fixed: Solar heat gain should not be smaller than Solar transmittance with shadings drawn. * Face Removed discontinuity when solar elevation passes 0 Shade in Perez sky radiation model. [Beta 23] * CEFAN The performancy curve is now defined as a resource. SIMBOIL SIMBOIL * CELEAK Allowed negative thermal bridge. * HCEL Added temp sensor interface (required for reheat control). * AirMecRep New model for preparing reports for mechanical ventilation. [Beta 24] * CeLHO Big time constant (18000 s) applied to density difference. MLHO * CLIMATE New output variable for the wind speed diagram. Fixed bugs ========== * When calculating the infiltration, the ground area is now included in the envelope area. * Fixed contribution of ideal coolers and chiller with emiss<1 to the system energy report. * [Beta 12] Hopefully fixed the bug in floor plan that changed the position of zones and building parts. * [Beta 12] Fixed "DOS error -1" message. * [Beta 18] Fixed bug in PPD formula fixed. Coefficient multiplying PMV[i]**2 should be 0.2179 not 0.2719. 2013-02-08 EQUA Simulation AB