| Title |
A Feasibility Case Study on Net-Zero Energy Daycare Center |
| Authors |
Kim, Ji-Hyeon ; Lim, Hee-won ; Shin, U-cheul |
| DOI |
https://doi.org/10.5659/JAIK_SC.2019.35.4.185 |
| Keywords |
Daycare-Center ; Net-Zero Energy Building ; Renewable Energy System ; Energy Performance Evaluation |
| Abstract |
In this study, we, through case studies, formulated a method to implement net-zero energy daycare center at the current insulation and technology level, and calculated its energy expense. The reference model was a medium sized daycare center whose number of children was 99. We analyzed the energy consumption status for the reference model and developed TRNSYS simulation analytical model to realize net-zero energy . We assumed the reference model to be "All Electric Building" where all energy including cooking is supplied by electricity. The result is summarized as follows: First, the annual electricity consumption of daycare center was 53,291kWh. Plug load occupied the largest share of 48% followed by lighting, 10%, cooling ,9%, cooking, 9%, heating, 8%, hot water, 5% and ventilation, 2%. Second, the photovoltaic installation capacity to realize net-zero energy was 40.32kWp and its annual generation was 53,402kWh. Third, the annual energy expense(electricity bill) by realizing net-zero energy was 2,620,390won. |