[EnergyPlus_Support] Re: Version 5 features (final draft)

["Liam O'Brien" <liambrn@xxxxxxxxx>]

Great work, development team!

I'm wondering if the bug associated with the finite difference method has been fixed from V4?

Thanks.
Liam O'Brien

--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, Linda Lawrie <linda@...> wrote:
>
> Version 5.0, Release April 2010
> 
> Data Sets
> * New refrigerated case data set.
> 
> Input
> * Slab and Basement preprocessors integrated to run automatically 
> prior to EnergyPlus simulation
> * New "Unit Type" field for schedules to support units conversions of 
> schedule values
> * Added ExternalInterface to connect to the Building Controls Virtual 
> Test Bed using Ptolemy.
> 
> Geometry/Window/Wall/Shading
> * 2-node ConductionFiniteDifferenceSimplified model added.
> 
> Daylighting
> * Allow switchable windows like electrochromic windows to 
> continuously dim, instead of only switching to fully dark state. 
> Allows the zone to meet the maximum glare index while providing 
> daylight for spaces.
> 
> Zone Model
> * Analytical and Euler solution options for zone air heat balance added.
> 
> Natural and Mechanical Ventilation
> * Added minimum outdoor air flow rate operation controls to single 
> and dual duct VAV air terminals.
> * Added maximum supply air flow rate during reheat to single duct VAV 
> air terminal.
> * New object ZoneHVAC:OutdoorAir to describe outdoor air flow rate 
> for use by other objects.
> * New ZoneVentilation:WindandStackOpenArea object calculates 
> ventilation rates based on winds and stack effects.
> * Zone HVAC outdoor air unit module for make-up air and DOAS.
> 
> HVAC and Refrigeration
> * Refrigeration loops can now model CO2 secondary loops.
> * Lighting in refrigerated cases revised to better match 
> manufacturer's practices.
> * Zone-side impacts of refrigerant piping heat exchange added.
> * Default 'on' schedules for refrigerated cases and walk-ins added
> * Dual layer controls for radiant systems removed
> * Basin heater added to all chillers except absorption chillers.
> * Basin heater added to one and two speed cooling towers.
> * Pumps can ride curves based on pressure.
> * New steam baseboard with radiant heat.
> * New electric radiant/convective baseboard.
> * Added HVACTemplate:Zone:WaterToAirHeatPump and 
> HVACTemplate:Plant:MixedWaterLoop
> * Standard rating (net) cooling capacity and SEER value reported for 
> single speed DX cooling coil with air-cooled condenser.
> 
> Electrical Systems
> * Improved methodology for electric load dispatch via the electric load center.
> 
> Controls and User Functions
> * Enhancements to EMS including: system timestep built-in variable, 
> detect unbalanced parentheses in Erl, custom schedule output, and 
> coupling with ExternalInterface.
> 
> On-Site Energy Supply
> * Wind turbine module (horizontal and vertical axis turbines).
> 
> Output
> * New predefined output table for DX cooling coils as part of 
> EquipmentSummary report summarize the calculated capacity and SEER values.
> * New simulations database table and tabular reports data added to 
> SQL database output.
> * Added report variables for beam and diffuse solar radiation for blinds.
> * Users can turn off most surface variables to a minimal critical set 
> with single command. Allows tremendous reduction in execution time 
> for large projects with many surfaces.
> 
> Utilities
> * New utility EP-Compare allows users to graphically compare results 
> from two simulations.
> * IDF Editor supports IP units in schedules and other objects.
> * EP-Launch, IDF Editor, and WeatherConverter updates throughout.
> 
> Documentation and Guides
> * Two new guides: Tips and Tricks Using EnergyPlus, and External 
> Interface Application Guide.
> * Input/Output Reference and Engineering Reference updated and 
> extended for all new features and updates. Total documentation now 
> exceeds 4,700 pages.
> * New translation capability added to EnergyPlus web site allows 
> translation into 50 languages.
> 
> Validation and Testing
> * New testing report: EnergyPlus Testing with IEA BESTEST Mechanical 
> Equipment & Control Strategies for a Chilled Water and a Hot Water System
> 
> Platforms
> * Windows (XP, Vista, 7), Linux, Mac (tested for Snow Leopard)
>




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