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Buildings & Construction

Building control systems

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Displaying 26 - 50 of 346

Users Guide to the HVACSIM+ Configuration Tool

September 2, 2020
Author(s)
Michael A. Galler
HVACSIM+ (HVAC SIMulation PLUS other systems) was introduced by the National Institute of Standards and Technology (NIST) in 1985 as a computer simulation tool to simulate building systems. The HVACSIM+ computer program package and manuals have been

Users Guide to Type277 Loosely Coupled Integration of TRNSYS with Java

August 13, 2019
Author(s)
Farhad Omar
The purpose of this document is to provide instructions for using a newly developed TRNSYS component (Type277). Type277 enables the loosely-coupled integration of a TRNSYS model with Java software environments using socket communication. The bi-directional

Programmers Guide to the BACnet Communications DLL

October 1, 2018
Author(s)
Michael A. Galler
The BACnet standard defines a communication protocol for information exchange between components of a distributed building automation and control system. The BACnet communications dynamically linked library enables researchers to implement selected BACnet

Users Guide to the NIST Data Alignment Tool V1.0

September 4, 2018
Author(s)
Michael A. Galler
The Data Alignment Tool (DAT) was built to assist with the analysis of data used in testing Fault Detection and Diagnostics (FDD) tools and building commissioning (Cx) tools. The data sources were the Virtual Cybernetic Building Testbed (VCBT) and data

Burning Velocities of Marginally Flammable Refrigerant-Air Mixtures

May 1, 2018
Author(s)
Gregory T. Linteris
Refrigerant working fluids have been predicted to be large contributors to the increase in radiative forcing of the earth. Consequently, existing compounds will soon be phased out. Low- GWP replacements exist, but they tend to be mildly flammable, and

Users Guide to HVAC-Cx v2.2

December 6, 2017
Author(s)
Michael A. Galler, Natascha S. Milesi-Ferretti
HVAC-Cx is a software tool designed to facilitate performance analysis for mechanical equipment buildings. It is used for ongoing monitoring and provides the ability to detect faults related to improper operation, using expert rules to present results of

Scaling Methods for Dynamic Building System Simulation in an HVACSIM+ Environment

August 9, 2017
Author(s)
Zhelun Chen, Jin Wen, Anthony J. Kearsley, Amanda Pertzborn
A robust and efficient nonlinear algebraic and differential equations solver is increasingly essential as the scale of dynamic building system simulation grows larger and the models employed become more complex. There are many factors affecting the

Towards a Semantically-Enabled Control Strategy for Building Simulations: Integration of Semantic Technologies and Model Predictive Control

August 9, 2017
Author(s)
Parastoo Delgoshaei, Mark Austin, Amanda Pertzborn, Mohammad Heidarinejad, Vikas Chandan
State-of-the-art building simulation control methods incorporate physical constraints into their mathematical models, but omit implicit constraints associated with policies of operation and dependency relationships among rules representing those
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