1 / 19

Thermal Storage Coupled to a Ground Source Heat Pump in a Public Services Building COIMBRA

Thermal Storage Coupled to a Ground Source Heat Pump in a Public Services Building COIMBRA Andre Quintino Duarte Oradea, 06 June 2012. Demonstration Building. “Fábrica dos Mirandas”.

ashby
Download Presentation

Thermal Storage Coupled to a Ground Source Heat Pump in a Public Services Building COIMBRA

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. ThermalStorageCoupled to a GroundSourceHeatPumpin a PublicServicesBuilding COIMBRA Andre Quintino Duarte Oradea, 06 June 2012

  2. Demonstration Building “Fábrica dos Mirandas” Total area: 3250m2FourfloorsTwopublicservicesinstalledOffices, laboratories, conferenceroomCapacity for 250 permanentworkers + 72 temporarypeoplein a conferenceroomLocatedclose to a river

  3. Demonstration Building

  4. Demonstration Building The heated /cooled spaces are located in level 3 of the building (last floor). 22 rooms (offices) Approximately space conditioned area 600 m2

  5. 22 Rooms

  6. Thermal Solution Before 2012: Air Conditioning • Low Efficiency; • Noisy; • Outdated technology; • COP between 2 and 3. February 2012: Ground Source Heat Pump (GSHP) • High Efficiency; • Very Silent; • New technology; • COP between 5and 6. November 2012: GSHP + Thermal Storage • Increase Efficiency; • Avoid Expensive Electricity Periods; • Reduce Building Footprint.

  7. Thermal Storage The thermal storage tank is to be located in a room adjacent to the machinery room. It is planned to have a volume of 3.5m3 (40% water + 60% PCM). Research is being conducted with the support of the Fluids Thermal Transfer Group of the Department of Mechanical Engineering on the best design of the tank to ensure optimal heat transfer and to ensure that the storage maximum capacity of the PCM modules is used. It was found that the most suitable material would be the S46 salt hydrate from PCM products Ltd (UK)

  8. Thermal Storage Tank Tank Dimensions: 1,5m; 0,8m; 3m (H; W; L) With a Thermal Capacity of 100 KWh. (Currently under construction) To be installed late this year in November.

  9. Thermal Needs on a Typical Monday 100 kWh Thermal Storage for 2 hours.

  10. Thermal Needs on a Typical Friday 100 kWh Thermal Storage for 3,5 hours.

  11. Electricity Price in Portugal

  12. Control System

  13. Control Hardware

  14. Piping System

  15. Heat Pump Reversibility is done on the water side in order to always be in counter current on the heat exchangers. This is achieved by 3-way motorized valves

  16. SimplifiedSchematics of theHydraulicInstallation Thermal Storage 75 mm Diameter PPR Pipes in the main sections

  17. Control Software

  18. PreliminaryTestResults WithoutThermalStorage: COP = 6,03 WithThermalStorage: (InNovember)

  19. Thank you

More Related