Building Energy Software Tools
Formerly hosted by US Dept. of Energy    

HVACSIM+

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Simulation model of a building HVAC (heating, ventilation, and air-conditioning) mechanical system plus HVAC controls, the building shell, the heating/cooling plant, and energy management and control system (EMCS) algorithms. The main program of HVACSIM+ (HVAC SIMulation PLUS other systems) employs a hierarchical, modular approach and advanced equation solving techniques to perform dynamic simulations of building/HVAC/control systems. The modular approach is based upon the methodology used in the TRNSYS program.

For a free copy of HVACSIM+, contact the developer at mikeg@nist.gov

Expertise Required: 

High level of computer literacy.

Audience: 

Building technology researchers, graduate schools, consultants.

Input: 

Building system component model configuration, simulation setup work file, boundary data file, and simulation control data. Weather data and thermal property data of building shell materials are also required, when building shells are included in a simulation.

Output: 

User-designed reports.

Strengths: 

Dynamic response using variable time-steps; flexibility of model setup; interactive simulation model generation; simultaneous non-linear equation solving; stiff ordinary differential equation handling.

Country: 
United States
Major Capabilities: 
HVAC System Selection and Sizing
Language: 
English
Platform: 
Windows
Pricing: 
Free
Last Software Update: 
30 June 2010
Last Entry Update: 
16 December 2015
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