Paper Conference

Proceedings of ASim Conference 2016: 3rd Asia conference of IBPSA-China, Japan, Korea

     

Primary energy saving potential of a liquid desiccant and evaporative cooling-assisted 100% outdoor air system in underground spaces

E. Choi, H. Kim, J. Jeong

Abstract: The applicability of a liquid desiccant and evaporative cooling-assisted 100% out door air system (LD-IDECOAS) in underground spaces was evaluated. Detailed energy simulation was performed to estimate the energy saving potential of the LD-IDECOAS. Two different types of heating, ventilating and air conditioning (HVAC) systems, the variable air volume (VAV) system and LD-IDECOAS, were applied in a modeled underground space to compare annual energy consumption. The thermal load of the underground spaces showed a different pattern compared with normal space. Maximum cooling and heating loads were relatively small in the underground spaces because of the stable condition of the surrounding environment compared with the above ground building. Based on the results, the size of the HVAC system in underground spaces could be smaller than in aboveground spaces. The LD-IDECOAS reduced 38% more primary energy consumption than the VAV system when applied with district heating system by managing regeneration energy.
Keywords: Underground spaces, liquid desiccant and evaporative cooling-assisted 100% out door air system (LD-IDECOAS), district heating system
Paper:
asim2016_323