Abstract
In a French research project, a new predictive building model tuning have been developed and applied to a fully occupied, well instrumented demonstrator 700 m² offices building with a high level of thermal insulation of the envelope. In the first part of the paper, the building characteristics with equipments and the monitoring specifications are described. In a second part, the development and validation process of the EnergyPlus building energy performance simulation model used in the project are explained. This experimental validation has been done in four steps: (i) building air tightness testing and HVAC equipment commissioning, (ii) tuning of parameters influencing dynamics calculation (iii) comparison of long term energy consumption (iv) analysis of heat pump equipment performances discrepancies especially with specific dynamic measurement campaigns. The high impact of the load factor on heat pump system efficiency and on start and stop cycles is clearly shown. In a third part, a parametric study is discussed to explain the heat pump system behaviour in running conditions. Two building models with quite different levels of thermal insulation and air tightness have been simulated in order to assess the monitoring analysis results. Then, the last part is dedicated to a parametric study performed so as to evaluate the impact of the hydraulic circuit (serial / parallel hydraulic circuit of the thermal energy storage tank with different storage sizes) of the heat pump system and control strategies used for its operation. An optimal operation scheme has been applied by simulation to the thermal energy storage system thank to a dedicated system model using MATLAB software. The efficiency of this optimal solution has been evaluated by simulation. The Coefficient Of Performance (COP) and the System Performance Factor (SPF) of the heat generation system are dramatically improved and number of start and stop cycles reduced.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
