Energy saving potential of an independent dedicated outdoor air system integrated with thermal energy storage for a childcare center

2019 ◽  
Vol 152 ◽  
pp. 377-390 ◽  
Author(s):  
Min-Hwi Kim ◽  
Jeong-Eun Son ◽  
Jaehyeok Heo ◽  
Deukwon Kim ◽  
Dong-Won Lee
Keyword(s):  
Energy Storage ◽  
Energy Saving ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Outdoor Air ◽  
Energy Saving Potential ◽  
Air System ◽  
Childcare Center

scholarly journals Analysis the Energy Saving of Chiller Plant (CHIP) Daily Operation by Using Optimal Projected Capacity of Ice Thermal Energy Storage (ITES)

2021 ◽  
Vol 1874 (1) ◽  
pp. 012025
Author(s):  
SR Shaari ◽  
M.L. Othman ◽  
H. Hizam ◽  
NY Dahlan ◽  
Mohd Hanafiah Chik ◽  
...  
Keyword(s):  
Energy Storage ◽  
Energy Saving ◽  
Thermal Energy ◽  
Thermal Energy Storage

scholarly journals Energy-saving potential of dedicated outdoor-air system assisted by vacuum-based membrane dehumidifier

2019 ◽  
Vol 111 ◽  
pp. 01087 ◽  
Author(s):  
Seong-Yong Cheon ◽  
Soo-Yeol Yoon ◽  
Su Liu ◽  
Jae-Weon Jeong
Keyword(s):  
Energy Saving ◽  
Primary Objective ◽  
Dew Point ◽  
Outdoor Air ◽  
Variable Air Volume ◽  
Energy Saving Potential ◽  
Air Volume ◽  
Air Supply ◽  
Radiant Cooling ◽  
Air System

The proposed research presents a dedicated outdoor-air system (DOAS) integrated with a vacuumbased membrane dehumidifier (VMD). The primary objective of this study was to evaluate the energy-saving potential of the proposed VMD–DOAS combination. VMD–DOAS comprised a membrane-energy exchanger (MEE), dew-point indirect evaporative cooler (DP-IEC), and VMD. VMD possessed a characteristic by virtue of which the dehumidification process was isothermal; i.e., no temperature change was observed during the VMD process. While VMD served to control the dry-air supply, the required target temperature (i.e., 17 °C) was maintained via DP-IEC operation. The remaining sensible heat of the conditioned zone was controlled by the ceiling radiant cooling panel (CRCP). The load of the conditioned zone was driven by TRANSYS 18, and an engineering equation solver (EES) was used for evaluating the energy-saving potential of the proposed system with CRCP by comparing it against the variable-air-volume (VAV) system. Results of this study demonstrated that the proposed DOAS with CRCP consumed 37% less operating energy compared to the VAV system. This observed energy-saving potential of the proposed system was driven by reducing the dehumidification load and subsequent energy recovery by MEE.

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