能源与建筑英文版.pdf

Energy and Buildings 139 (2017) 72–77 Contents lists available at ScienceDirect Energy and Buildings j o u r na l h o me p a g e : w w w. elsev /locate/enbuild Experimental study of the pressure reset control strategy for energy-efficient fan operation Part 1: Variable air volume ventilation system with dampers Samira Rahnama a,∗ , Alireza Afshari a , Niels Christian Bergsøe a , Sasan Sadrizadeh a,b a Aalborg University, Danish Building Research Institute, A.C. Meyers vænge 15, 2450 Copenhagen SV, Denmark b KTH Royal Institute of Technology, Fluid and Climate Technology, Brinellvägen 23, SE-100 44 Stockholm, Sweden a r t i c l e i n f o a b s t r a c t Article history: This paper is the first part of a two-part series which investigate the energy saving potentials in a novel Received 24 September 2016 mechanical ventilation system by replacing terminal dampers with decentralized fans. In Part 1, a conven- Accepted 28 December 2016 tional variable air volume (VAV) ventilation system with dampers is studied as a reference for comparison Available online 4 January 2017 with the novel ventilation system in Part 2. The present study (Part 1) proposes a new method to imple- ment the pressure reset strategy in practice. A common strategy to control the supply fan speed in a VAV Keywords: system is to install a pressure sensor in the supply duct system. Then the fan speed is controlled such that VAV ventilation system a const