HVACSIM+
Simulation model of a building HVAC (heating, ventilation, and air-conditioning ) 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.
Keywords
HVAC equipment, systems, controls, EMCS, complex systems
Validation/Testing
N/A
Expertise Required
High level of computer literacy.
Users
More than 100.
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.
Computer Platform
PC-compatible, with 640 kilobytes of RAM and math coprocessor.
Programming Language
Fortran 95
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.
Weaknesses
High level of user computer literacy required; long calculation time when solving simultaneous equations.
Contact
Company: |
National Institute of Standards and Technology |
Address: |
Building Environment Division |
Telephone: |
+1 (301) 975-6521 |
Facsimile: |
+1 (301) 990-8973 |
E-mail: |
|
Website: |
Availability
Free of charge to non-profit organizations. Software and manual can be obtained from technical contact. Version 20 released in early 2009.