Failures can lead to a series of problems in the complex heating, ventilation and air-conditioning (HVAC) systems in buildings. Fault detection and diagnosis (FDD) is an important technology to solve these problems. Models can represent the behaviors of the HVAC systems, and FDD can be realized with models. Using the model as intermediary, a link between system simulation and FDD can be built. ...

Heating, Ventilation and Air Conditioning (HVAC) systems consume almost half of the total energy use of commercial buildings. To optimize HVAC energy usage, it is important to understand the energy consumption of individual HVAC components at fine granularities. However, buildings typically only have aggregate building level power and thermal meters. We present HVACMeter, a system which leverag...

In France, buildings account for a large part of the energy consumption and carbon emissions. Both are mainly due to Heating, Ventilation and Air-Conditioning (HVAC) systems. Because older, oversized or poorly maintained systems may be using more energy and costing more to operate than necessary, new management approaches are needed. In addition, energy efficiency can be improved in central hea...

This paper develops a Failure Mode, Effects and Criticality Analysis (FMECA) for heating, ventilation air conditioning (HVAC) system in railway. HVAC is safety critical which must ensure emergency case of fire loss primary functions. A study the HVAC's areas mandatory to optimize its reliability availability consequently guarantee low operation maintenance cost. The first part describes FMECA p...

High levels of measurement noise, nonlinear and non minimum phase, and conflicting performance requirements pose challenging problems for improving heat transfer efficiency and flow control in HVAC systems. This paper extends the theoretical development of the Energy Delivery Efficiency (EDE) concept to include supply air latent effects and economizer operation, defines how ideal HVAC systems s...

In France, buildings account for a large part of the energy consumption and carbon emissions. Both are mainly due to Heating, Ventilation and Air-Conditioning (HVAC) systems. So, the present work deals with the predictive control of multizone HVAC systems in nonresidential buildings. We used the PMV (Predicted Mean Vote) index as a thermal comfort indicator and developed low-order ANN-based mod...

HVAC commissioning has come to be recognized as most important process needed for design, construction and operation and maintenance of HVAC system to realize owners true project intent and establish energy saving and sustainable operation and management of the building system. The author first introduce basic concept of commissioning and its actual procedure to be executed at each phase of bui...

Intelligent building technology for building operation, called the optimization process, is developed and validated in this paper. The optimization process using a multi-objective genetic algorithm will permit the optimal operation of the building’s mechanical systems when installed in parallel with a building’s central control system. Using this proposed optimization process, the supervisory c...

The interconnection of the power systems of the European Community (ENTSO-e) and of the Commonwealth of Independent States (IPS/UPS) arise several challenges for which regards the operation and the emergency control of a very geographically extended interconnected power system. Recent international projects on the possibility of interconnection considered the option of synchronous interconnecti...