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Re: [EnergyPlus_Support] Re: Version 5 featur es (final draft)
On Tue, 30 Mar 2010 00:40:49 -0000, "Liam O'Brien" <liambrn@xxxxxxxxx>
> Great work, development team!
> I'm wondering if the bug associated with the finite difference method
> been fixed from V4?
> Liam O'Brien
> --- In EnergyPlus_Support@xxxxxxxxxxxxxxx, Linda Lawrie <linda@...>
>> Version 5.0, Release April 2010
>> Data Sets
>> * New refrigerated case data set.
>> * 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.
>> * 2-node ConductionFiniteDifferenceSimplified model added.
>> * 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
>> 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
>> * 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
>> 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).
>> * New predefined output table for DX cooling coils as part of
>> EquipmentSummary report summarize the calculated capacity and SEER
>> * New simulations database table and tabular reports data added to
>> SQL database output.
>> * Added report variables for beam and diffuse solar radiation for
>> * 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.
>> * 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
>> * Windows (XP, Vista, 7), Linux, Mac (tested for Snow Leopard)
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