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Title: Towards distributed enthalpy measurement in large-scale air conditioning systems
Authors: Sauter, Thilo 
Steiner, Harald 
Glatzl, Thomas 
Hortschitz, Wilfried 
Wenig, Florian 
Heschl, Christian 
Keywords: air conditioning;building management systems;data acquisition;energy management systems;enthalpy;wireless sensor networks;building automation;distributed data acquisition system;distributed enthalpy measurement;energy management;flow distributions;large-scale air conditioning systems;low-cost flow sensors;wireless sensor network;Atmospheric modeling;Computational modeling;Ducts;Fluid flow measurement;Mathematical model;Standards;Temperature sensors
Issue Date: 2015
Publisher: IEEE
Source: In: Systems Conference (SysCon), 2015 9th Annual IEEE International, 460-465
Abstract: Air conditioning systems are among the major energy consumers in buildings. Energy-efficient operation of AC systems is an important step towards better energy management in building automation, but requires efficient monitoring of the energy or enthalpy flows within the AC installation, which is currently still difficult because of the lack of appropriate equipment. This paper introduces a distributed data acquisition system for large-scale AC systems based on low-cost flow sensors implemented by means of standard printed circuit board technology and interconnected via a wireless sensor network. A critical issue for the system installation is the placement of the sensors in the air ducts to obtain representative measurements of the air flow. To this end, extensive aerodynamical simulations are carried out to analyze the flow distributions in typical building blocks for air ducts, particularly with respect to turbulences. The simulation results are compared with experimental data from the literature and are shown to be reliable.
Description: 9th Annual IEEE International Systems Conference (SysCon), 13-16 April 2015 Vancouver, BC
DOI: 10.1109/SYSCON.2015.7116793
Rights: info:eu-repo/semantics/closedAccess
Appears in Collections:Energie-Umweltmanagement

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