Re: [EnergyPlus_Support] Re: EnergyPlus V7.1 Released

On Tue, Jun 5, 2012 at 9:22 AM, Linda Lawrie <linda@xxxxxxxxxxxxxx> wrote:

It would depend....

If you have a very complicated plant, there could be some extra time there as it tries to reconcile the plant stuff. However, this is now also openmp threaded -- you could add a "ProgramControl,1;" to your input file and see if that helps.

(or look at the last couple of lines of the .eio file -- that shows how many threads are being used).

At 07:07 AM 6/5/2012, Nacho Gomis wrote:

Linda,I have run a simulation and it took 11min instead of the 7min that it took with the v7.Is this normal?When I upgraded from v6 to v7 the time for my simulations went down.
Thanks for the upgrades,the new features will be helpful for me.
Ignacio Gomis

On 5 June 2012 14:22, L Lawrie <linda@xxxxxxxxxxxxxx> wrote:

It refers to the EnergyPlus version, not the Windows OS version. EnergyPlus windows has been tested on XP, Vista, Windows 7 and I have someone trying it on Windows 8.

--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, Mike Porter <Mike584595@...> wrote:

>

>

> The 32 bit Windows download option appears as: Windows 7.1.0 012 (EXE 87.17) . Does this refer to Windows 7 or to the E+ version 7.1.0 012?

>

> Mike

>

>

> -----Original Message-----

> From: Linda Lawrie <linda@...>

> To: Recipient list suppressed:;

> Sent: Mon, Jun 4, 2012 5:23 pm

> Subject: [EnergyPlus_Support] EnergyPlus V7.1 Released

>

>

>

>

> EnergyPlus Version 7.1 and OpenStudio Legacy Plug-in 1.0.8 Available

>

> The U.S. Department of Energy (DOE) has released an updated version

> of EnergyPlus simulation software for modeling heating, cooling,

> lighting, ventilating, and other building energy flows. Additionally,

> a new version of OpenStudio Plug-in for Google SketchUp is available,

> which makes it possible to perform EnergyPlus simulations using

> Google's user-friendly 3-D drawing interface.

> Visit www.energyplus.gov to learn more and download EnergyPlus and

> OpenStudio Plug-in now.

>

> Enhancements in the New Versions

>

> General

>

> * EnergyPlus can now use multi-core processors to speed execution of

> models with large geometry descriptions. The solution for inside face

> surface temperatures was threaded using OpenMP technology.

> * The Design Day object was restructured and allows finer control

> over humidity conditions.

> * The Run Period object was extended to include features useful for

> real-time and real-weather simulations.

>

> Datasets

>

> * New equipment performance data set for 110 different air-cooled

> chillers - see the file AirCooledChiller.idf

>

> Input

>

> * Corrected or clarified the units for various input fields

>

> Zone and Surface Models

>

> * Many new output variables were added to expand the reporting

> available for surface heat transfer model results.

> * The modeling of internal gains was revised and improved to

> facilitate integrating HVAC equipment skin losses and the zone

> thermal model. Losses from plant pumps can now be added to thermal zones.

>

> Natural and Mechanical Ventilation

>

> * New comprehensive modeling of the concentration of a generic

> gaseous contaminant in zone air including internal emission sources

> and ventilation controls.

> * Added system-level zone maximum outdoor air fraction for

> ventilation rate procedure for sizing and annual calculations.

> * Added support for multi-path air distribution systems in the

> ventilation rate procedure based on the ASHRAE Standard 62.1 for

> annual calculations.

> * Added Demand Controlled Ventilation for sizing calculations based

> on ASHRAE Standard 62.1 for both single- and multi-path systems.

>

> HVAC and Refrigeration

>

> * Commercial refrigeration models were expanded to include systems

> that use transcritical CO2.

> * A new coil system was added for modeling air-to-air heat pump coils

> in built-up air handlers, outdoor air systems, and zone outdoor air units.

> * Fan-powered induction air terminal units can now draw secondary air

> from plenums.

> * Added autosizing for hot water baseboards in HVACTemplates.

> * Added pumping options, piping configurations, fluid types, and

> additional controls to HVACTemplate plant loops.

> * Added additional control and part load ratio inputs to

> HVACTemplate:Plant:Chiller and HVACTemplate:Plant:Boiler.

> * Added additional error checking to HVACTemplate objects.

> * Added model for Integral-Collector-Storage (ICS) solar collectors

> for hot water heating.

> * Added the ability to use hot water (or steam) coils in various HVAC

> equipment that have options for different types of heating coils.

> * The models for adding/removing heat to/from the return air stream

> were improved to add maximum and minimum limits on the temperature of

> the return air (+60C, -30C).

> * The Integrated Part Load Value (IPLV) standard rating for chillers

> can now be calculated from the chiller input and reported.

> * Added "High/Low Temperature Heating Standard (Net) Rating Capacity"

> and HSPF calculation routines for single speed air source heatpumps.

> * Added two-stage compression with intercooling to the detailed

> commercial refrigeration cycle model.

> * New model to reset condenser loop temperature setpoints using

> predetermined curves that reduce net energy consumption for the

> chiller and cooling tower plant.

> * New "ideal" model to reset condenser loop temperature setpoints

> using a search algorithm to find the near-optimal setpoint at a given

> timestep which gives the minimum total chiller, cooling tower,

> chilled water pump and condenser water pump power consumption.

> * The heat pump water heater model can now use a stratified thermal tank.

> * Added a new model for variable speed, water-to-air heat pumps.

>

> Controls and User Functions

>

> * A new category of HVAC and plant components was added that allow

> using EMS's capabilities to create user-defined models of new and

> unique equipment. Users can now define their own component models

> using new IDF objects that serve as generic holders for zone

> forced-air units, coils in an air handler, zone air terminal units,

> or plant components.

> * The EnergyPlus Runtime Language used for EMS programming was

> extended to include WHILE loops and to allow directly evaluating

> curve and table IDF objects from inside programs.

> * New EMS Actuators were added including: surface construction,

> surface outside boundary conditions, and refrigeration system

> condenser minimum temperature limit.

> * The ExternalInterface used for co-simulation was extended to allow

> using Functional Mock-up Units (FMU) including a FMU parser for

> pre-processing FMUs.

>

> Output

>

> * Multiple daylight illuminance maps can now be generated for a single zone.

> * Energy meters have been added to output summary reports.

> * A new sizing report related to ASHRAE Standard 62.1 has been added

> to output summary reports

>

> Documentation and Guides

>

> * Documentation has been updated for all documents.

>

> Platforms

>

> * Windows (XP, Vista, Windows 7) 32 and 64 bit versions

> * Linux (Ubuntu 9.04 and above, Redhat 5.4 and above) 32 and 64 bit versions

> * Mac (with Intel processors) (10.6, 10.7) 32 and 64 bit versions

> * EnergyPlus V 7.1 has been tested on all of these platforms

>

> And many other enhancements and speed improvements throughout.

> Suggestion: get as much memory as possible in your computer for

> running EnergyPlus.

>

> Thanks!

> The EnergyPlus Team

>