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Energy-conscious building automation. Phase 1 - pilot study. Main report; Energirigtig bygningsautomation. Fase 1 - Forundersoegelse. Hovedrapport

Abstract

Building Automation is a significant and sometimes overlooked element of low-energy buildings to ensure large energy savings by e.g. demand control and to ensure optimised operation of ventilation system, cooling and heating system etc. in both new buildings and in modernisation of existing buildings. In the building design including installation, automation makes up a large part of the total construction costs. A rough figure is 3-500 DKK/m{sup 2}. It is estimated that energy-efficient building automation can reduce buildings' energy demand by about 15 kWh/m{sup 2} (electricity and heating) on average. Based on this possible reduction of building energy demand, the project deals with optimisation of control/adjustment of building installations for lighting, heating, cooling and ventilation systems. An investigated key parameter is how much it will be okay for the room temperature to 'glide' (change) during the occupied hours in a heavy and a light office building, and how this will influence the energy demand and the sensation of the indoor climate. The project shows that it is possible to save about 15 kWh/m{sup 2} primary energy by letting the temperature 'glide' +2,5 deg. C during the daily occupied hours instead of +1 deg. C. With this operation philosophy, the building  More>>
Authors:
Hummelshoej, R M; Kaarup Olsen, P; [1]  Brohus, H; [2]  Olesen, Bjarne W; [3]  Bang Skjoedt, A; Giliamsen, P [4] 
  1. COWI A/S, Kgs. Lyngby (Denmark)
  2. Aalborg Univ. (AAU), Inst. for Byggeri og Anlaeg, Aalborg (Denmark)
  3. Danmarks Tekniske Univ., DTU Byg. Institut for Byggeri og Anlaeg, ICIEE, Kgs. Lyngby (Denmark)
  4. TAC A/S, Herlev (Denmark)
Publication Date:
Sep 15, 2009
Product Type:
Technical Report
Report Number:
NEI-DK-5501
Resource Relation:
Other Information: PSO-2008; 17 refs., 56 tabs., 111 figs.
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; OFFICE BUILDINGS; ENERGY CONSERVATION; COMPUTERIZED CONTROL SYSTEMS; THERMAL COMFORT; SPACE HEATING; SPACE HVAC SYSTEMS
OSTI ID:
1011559
Research Organizations:
COWI A/S, Kgs. Lyngby (Denmark)
Country of Origin:
Denmark
Language:
Danish
Other Identifying Numbers:
Other: Contract ELFORSK-340-004; TRN: DK1101065
Availability:
Also available at http://www.risoe.dtu.dk/rispubl/NEI/NEI-DK-5501.pdf; OSTI as DE01011559
Submitting Site:
DK
Size:
334 p. pages
Announcement Date:
Apr 25, 2011

Citation Formats

Hummelshoej, R M, Kaarup Olsen, P, Brohus, H, Olesen, Bjarne W, Bang Skjoedt, A, and Giliamsen, P. Energy-conscious building automation. Phase 1 - pilot study. Main report; Energirigtig bygningsautomation. Fase 1 - Forundersoegelse. Hovedrapport. Denmark: N. p., 2009. Web.
Hummelshoej, R M, Kaarup Olsen, P, Brohus, H, Olesen, Bjarne W, Bang Skjoedt, A, & Giliamsen, P. Energy-conscious building automation. Phase 1 - pilot study. Main report; Energirigtig bygningsautomation. Fase 1 - Forundersoegelse. Hovedrapport. Denmark.
Hummelshoej, R M, Kaarup Olsen, P, Brohus, H, Olesen, Bjarne W, Bang Skjoedt, A, and Giliamsen, P. 2009. "Energy-conscious building automation. Phase 1 - pilot study. Main report; Energirigtig bygningsautomation. Fase 1 - Forundersoegelse. Hovedrapport." Denmark.
@misc{etde_1011559,
title = {Energy-conscious building automation. Phase 1 - pilot study. Main report; Energirigtig bygningsautomation. Fase 1 - Forundersoegelse. Hovedrapport}
author = {Hummelshoej, R M, Kaarup Olsen, P, Brohus, H, Olesen, Bjarne W, Bang Skjoedt, A, and Giliamsen, P}
abstractNote = {Building Automation is a significant and sometimes overlooked element of low-energy buildings to ensure large energy savings by e.g. demand control and to ensure optimised operation of ventilation system, cooling and heating system etc. in both new buildings and in modernisation of existing buildings. In the building design including installation, automation makes up a large part of the total construction costs. A rough figure is 3-500 DKK/m{sup 2}. It is estimated that energy-efficient building automation can reduce buildings' energy demand by about 15 kWh/m{sup 2} (electricity and heating) on average. Based on this possible reduction of building energy demand, the project deals with optimisation of control/adjustment of building installations for lighting, heating, cooling and ventilation systems. An investigated key parameter is how much it will be okay for the room temperature to 'glide' (change) during the occupied hours in a heavy and a light office building, and how this will influence the energy demand and the sensation of the indoor climate. The project shows that it is possible to save about 15 kWh/m{sup 2} primary energy by letting the temperature 'glide' +2,5 deg. C during the daily occupied hours instead of +1 deg. C. With this operation philosophy, the building constructions' thermo-active capacity can be utilised better, and there will be less requirements for automation and operation of the climate system. In the project is assessed how large a zone area can be covered by typical sensors in order to maintain a satisfactory indoor climate and the corresponding energy demand. The electricity consumption for building automation may account for up to 6 kWh/m{sup 2} per year. The project has made a preliminary basis for indicating a good practice for 1) automation of buildings with a view to good indoor climate and a low energy demand and 2) necessary equipping with meters to be able to document energy savings and energy consumption with specific focus on division of electricity consumptions. Two hypotheses/development goals have been confirmed: 1) It is possible to obtain a good/better indoor climate and lower energy demand with simplified automation solutions. 2) Much energy can be saved with methods for more flexible specifications for indoor climate and comfort zones. (Author)}
place = {Denmark}
year = {2009}
month = {Sep}
}