decentralized ventilation

Air renewal effectiveness of decentralized ventilation devices with heat recovery

Submitted by on Wed, 05/27/2015 - 15:24

Central ventilation systems with heat recovery have shown their limits especially within the context of building energy retrofit. The difficulties to install these systems in existing buildings, to find available space for devices, air ducts, silencers and fire dampers and to independently control the air flow in each room according to the real ventilation needs have led to an increasing market for decentralized ventilation devices.

Energy Saving Potentials of Dedicated Outdoor Air System in High-rise Apartment Buildings

Submitted by on Thu, 10/31/2013 - 10:50

The main thrust of this paper is to investigate the optimized supply air condition and energy saving potentials of a dedicated outdoor air system (DOAS) applied to a high-rise apartment building. For a typical 132-m2 apartment unit, it was assumed that two different systems, namely, a centralized DOAS integrated with ceiling radiant cooling panel (CRCP) and a decentralized energy recovery ventilator (ERV) operated with packaged air conditioner, were installed.