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[EnergyPlus_Support] Re: Time steps in weather files
Hi Juan Carlos,
Those characters explain where the weather data comes from and what its uncertainty is. You can find an explanation on pages 65-67 under the Weather Converter Program documentation in the Auxiliary EnergyPlus Programs. An asterisk "*" is not listed in the documentation, so I'm wondering if perhaps it is not a valid entry. Maybe that could be part of the problem. ???
Holly
--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, Juan Carlos Cristancho <juan.1124@...> wrote:
>
> Hi Linda:
>
> Can you tell me what is wrong with this CSV file? I tried to convert it to an
> EPW file with the Weather Statistics and Conversions program more than twice but
> it always crashes. I also have another question: what does the source code mean
> (for example C9C9C9*0*0?9?9?9?9?9?9?9A7A7A7A7A7A7*0E8*0*0)?
>
> Thanks,
>
> Juan Carlos
>
>
>
>
> ________________________________
> From: Linda Lawrie <linda@...>
> Sent: Mon, October 18, 2010 5:47:34 PM
> Subject: [EnergyPlus_Support] EnergyPlus V6.0 Released
>
>
> EnergyPlus Version 6.0 Available
>
> The latest release of the EnergyPlus building energy simulation program, Version
> 6.0, is now available in versions for Windows, Linux, and Mac operating systems.
> A few key new features include: significant speed increases -- up to 25-40%
> execution time reduction in most simulations, life-cycle cost calculations,
> Transformer model, modeling of CO2 concentrations, enhanced Green Roof (EcoRoof)
> model, enhanced convection coefficients. We have updated and extended
> capabilities throughout the existing building envelope, daylighting, and HVAC
> equipment and systems portions of the program.
>
> EnergyPlus V 6.0 is available at no cost from the EnergyPlus web site:
> www.energyplus.gov.
>
> OpenStudio plugin for Google SketchUp: The OpenStudio is a free plugin for the
> GoogleSketchUp 3D drawing program. The plugin makes it easy to create and edit
> the building geometry in your EnergyPlus input files. The plugin also allows you
> to launch EnergyPlus simulations and view the results without leaving SketchUp.
>
> EnergyPlus Example File Generator: A Web-based service is available that creates
> and runs EnergyPlus input files for simple models of commercial buildings. The
> input files (and annual results summary files) are sent to your e-mail address
> as attachments. This is a pilot project and is currently made available only as
> a BETA service. You can access the service and customize the characteristics of
> the building you want to model on the EnergyPlus Example File Generator
> Application.
>
> The set of example input files now includes full-blown models of typical new
> construction (drawn from the DOE Commercial Reference Buildings project). Also
> included is a real-life Hospital sample.
>
> What's New in Version 6.0?
>
> The highlights  improved and new features  are displayed by category.
>
> General
> * Significant speed increases, up to 25-40% execution time reduction in most
> simulations, depending on specific features used
>
> * Revised reference building examples (formerly benchmark buildings)
> * New detailed 130-zone hospital baseline and low energy example files.
>
> Datasets
> * New dataset for life cycle costing with regional U.S. fuel escalation
> factors.
>
> * Doubled number of refrigerated cases in refrigerated case data set
>
> Input
> * Zone lists supported in most internal gains, infiltration, ventilation,
> thermostat, and demand manager zone name fields to apply a single input object
> to multiple zones.
>
> * New lookup table object allows alternate performance input format to
> eliminate the need for regression analysis, can be used in place of existing
> curve objects, and can create curve objects.
>
> * Windows and Daylighting
> * New reporting of pre-calculated hourly daylight factors.
> * Allow glazing defined with spectral data to be used with between-glass shades
> and blinds.
>
> * Window 6.3 (fenestration modeling software) will be able to export EnergyPlus
> IDF segments for window modeling.
>
>
> Zone and Surface Models
> * New surface heat transfer convection coefficient options, including adaptive
> model, many new correlations, and user-defined equations.
>
> * Movable outside insulation, with transparent insulation material (TIM)
> capability, added to conduction finite difference model.
>
> * Ecoroof model now has two moisture diffusion calculation methods - simple and
> advanced.
>
> * Natural and Mechanical Ventilation
> * New comprehensive modeling of CO2 concentrations in zone air, including
> internal emission sources and ventilation controls.
>
> * New simplified model for interactions between mechanical ventilation,
> infiltration and duct leakage.
>
>
> HVAC
> * New separate sizing factors for heating and cooling.
> * Enhanced Fan Coil model to allow constant water-flow capacity control with
> multi-speed and variable-speed fan.
>
> * Enhanced inputs for variable volume fan minimum power rate.
> * Enhanced reheat coil sizing.
> * New component model for central fans with load-dependent power calculations
> accounting for fan pressure rise variations, duct static pressure reset, and
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>
> * Enhanced hot water coil model with variable UA resulting in significant
> improvement in hot water flow rate calculations.
>
> * New basin heater model added to the single speed, two speed, multi speed and
> multi mode DX coil models.
>
> * New multi-cell feature added for three types of cooling towers: single speed,
> two-speed, and the variable speed.
>
> * New HVACTemplate support for heating/cooling sizing factors, VAV minimum flow
> rate options, VAV terminal unit controls.
>
>
> Refrigeration
> * Multiple refrigeration systems can now share a single condenser.
> * Refrigeration condenser fan models enhanced and added input for minimum air
> flow rate.
>
> * Refrigeration condenser output enhanced to identify recovered energy used
> internally for defrost and for other purposes.
>
>
> Electrical Systems
> * New transformer model for electrical power service and on-site generation.
>
> Controls and User Functions
> * New dual-max control for VAV reheat terminal units with reverse acting damper
> and hot-water coil.
>
> * New maximum supply air temperature limit for VAV reheat terminal units.
> * New averaged setpoint managers allow control of supply temperature and
> humidity ratio based on requirements of multiple zones.
>
> * New setpoint managers that allow control of supply air humidity ratio of a
> central system serving multiple zones based on the critical zone humidification
> or dehumidification requirements.
>
> * New All-Off equipment operation scheme option added for plant and condenser
> loops.
>
> * Weather variables added as energy management system (EMS) actuators.
>
> Economics
> * New life cycle cost calculations.
>
> Output
> * New reporting of EER and IEER (in addition to SEER) for DX cooling coils with
> air cooled condensers.
>
> * Enhanced SQLite output to include error file content.
>
> Utilities
> * New EP-Launch option to run multiple simulations simultaneously, taking
> advantage of multiple processors (Windows platform only).
>
> * Enhanced output file access in EP-Launch (Windows platform only).
> * IDF Converter (Transition GUI) can now save intermediate versions.
>
> Platforms
> * Windows (XP, Vista, Windows 7)
> * Linux (Ubuntu 9.04 and above, Redhat 5.4 and above)
> * Mac (10.5, 10.6)
> * EnergyPlus V 6.0 has been tested on all of these platforms.
> * ParametricPreprocessor executable added to Linux and Mac distribution.
> * DElight simulations added to Linux and Mac distribution.
>
> And many other enhancements and speed improvements throughout.
>
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>
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> The EnergyPlus Team
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