Energy In Time Year Roundup – Université de Lorraine

Energy In Time consortium partners highlight their main achievements in 2015 and tell us about their prospects in 2016.
Joseph-Julien Yame and Dominique Sauter

A Benchmark Simulator incorporating occupant zones (Rooms/zones) and Air Handling Units (AHU) was developed. The simulator was developed in MATLAB SIMULINK with the help of the SIMBAD toolbox. This simulator was used to illustrate the Fault Detection and Fault Adaptation strategies developed. Both the FDI and FAC modules use model based approaches and hence models were obtained for both rooms and the heat exchanger, the key AHU component. The Heat exchanger uses nonlinear differential equations based on energy balance while the rooms were represented by state space models obtained from system identification of the SIMBAD models.

Both for the fault detection and fault adaptation, the works were logically distinguished as: System level or AHU level and Subsystem level or Zone level. The faults considered were: System Level: Pump or Valve fault, Fan fault; Subsystem Level: VAV Damper Stuck, Zone Temperature Sensor

The Equipment level Fault Detection approach involved the following techniques: AHU Level: Extended Kalman Filter; Zone Level: Unknown Input Observers. For system level fault detection, a structural model based approach for a system level fault diagnosis was also proposed. An approach to develop graph based structural models and to identify faults based on KPIs (Key parameter Indices) was given. For operational fault detection module, contributions included controller loop performance

For the fault adaptive control, Model Predictive Control (MPC) techniques were illustrated at both AHU level (pump fault) and zone level (damper stuck). Another interesting scenario proposed was to explore the handling of zone level fault (damper stuck) at the system level through reference management (air temperature).

The achievements were documented in the final versions of the following deliverables: D4.1, D4.2, D3.3.

Note also that two technical papers (references given below)  have  been presented to International Control Conferences:

1. Joseph J. Yamé, Tushar Jain, Dominique Sauter – An online controller redesign based fault-tolerant strategy for thermal comfort in a multi-zone building. In Proceedings of the 2015 IEEE Multi-Conference on Systems and Control, pp. 1901-1906, Sydney, Australia, September  21-23th, 2015

 

2. Dominique Sauter, Joseph J. Yamé, Christophe Aubrun and Frédéric Hamelin – Design of fault isolation filter for control reconfiguration: application to energy efficiency control in buildings. In Proceedings of the 23th Mediterranean Conference on Control and Automation (MED), pp. 16-19, Torremolinos, Spain, June 16-19^th, 2015

Energy in Time partner Caverion made visit to Levi Panorama hotel to survey possible additional energy meters

Energy in Time partner Caverion made visit to Levi Panorama hotel to survey possible additional energy meters. Those meters would help IES to calibrate simulation model of the Levi Panorama hotel demo site. As you can see from the pictures, winter has come to Levi and the outdoor temperature is nearly -12 °C.

This beautiful and unique hotel is one of the four demo buildings with different typologies, uses and expected user behavior that have been selected to serve as testing places for the project. Different climatic zones are also addressed as the buildings are located in Bucharest (Romania), Faro (Portugal), Helsinki and Levi (Finland).

The implementation of the Energy IN TIME system will be primarily done through the connection with the already existing building energy management systems (BEMS). There will not be a new infrastructure, but only the additional required elements such as sensors or gauges, that will provide an added value to the existing infrastructure, in order to facilitate the setting up of the whole system in pre-existing buildings.

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Levi hotel is going to serve as the stage for the next Energy in Time Consortium internal meeting that will take place in April 2016.

Energy In Time Year Roundup – CAVERION

Energy In Time consortium partners highlight their main achievements in 2015 and tell us about their prospects in 2016.

Jukka Heino:

Caverion’s year 2015 in the Energy in Time project was versatile. From the work package 4, the task 4.1 Continuous commissioning methodology began to be on finish line. As a task leader Caverion was pleased to see good progress on that task. The final deliverable 4.4 was returned on summer. Major work load was put also to energy audits of the Sanomatalo and Levi in the task 7.1 which were finalized during summer. Towards the end of the year the need of installations of the Finnish demo sites, Sanomatalo and Levi, were studied. In Sanomatalo the installations started in December. In those installations there were installed multiple electrical meters and energy meters in the pilot area. Other smaller activities, like Data in demos in Sanomatalo were done in May and the survey of the HVAC maintenance were done in December. Also the data transfer via OPC connections needed attention through the year.

At the beginning of the 2016 the installations in Sanomatalo will continue. Also the survey of the need of installations in Levi continues and probably installations to Levi will start early in 2016. The Energy in Time M30 meeting will be held in Levi in April of 2016. Caverion is responsible to organize this meeting and will happily present the Finnish Lapland to other partners. The main object for Caverion in 2016 is to have good start on the task 7.3 Monitoring and performance evaluation. This is important task of the whole Energy in Time project. Caverion will start planning this task early in spring, the actual task starts in July.

 

Energy In Time consortium partners highlight their main achievements in 2015 and tell us about their prospects in 2016

Benoit Vinot and Mathieu Thorel:

During the first semester of 2015, CSTB and ACCIONA have produced a BIM of the main terminal building of Faro Airport. This building is one of the four study cases retained by Energy In Time project to apply and assess different innovative energy regulation strategies.

The elaboration of this BIM, now finished, was a genuine challenge due to the size of the building: 75 000m² on 7 floors, 19 000 building elements modeled, 566 allocated areas. Two types of BIM were generated then merged: one dedicated to the architectural and structural elements (made by CSTB team), one other focusing on HVAC systems modeling (realized by ACCIONA team). All this work was done thanks to the strong collaboration of ANA partner, the facility manager of the airport, who brought many data such as: plans and drawings, technical datasheets and a lot of pictures. All available technical data (such as thermal transmittance of external walls and windows) have been included into the BIM to facilitate future technical assessments by centralizing the technical data in this single interoperable model.

In 2016, this BIM will play an important role in the quantification of energy/economic/environmental performances of different energy retrofitting strategies that will be modeled and assessed in the decision support method developed alongside the innovative energy regulation strategies.