Applicability Analysis of a Textile and Capillary Tube Composite Panel through a Real-scale Experiment - Focused on Energy Performance Analysis -

KIEAE Journal ◽  
2021 ◽  
Vol 21 (5) ◽  
pp. 33-38
Author(s):  
Yujin Nam ◽  
Sangmu Bae ◽  
Youngsik Kwon ◽  
Eun-Rim Baek ◽  
Ju-Yeop Kim
Keyword(s):  
Performance Analysis ◽  
Capillary Tube ◽  
Energy Performance ◽  
Composite Panel ◽  
Scale Experiment ◽  
Real Scale

Performance Analysis for Open-loop Geothermal System with Spill-way technology by Real-scale Experiment

2018 ◽  
Vol 30 (4) ◽  
pp. 186-194
Author(s):  
Hong kyo Kim ◽  
Sangmu Bae ◽  
Yujin Nam ◽  
Oun Jeoun ◽  
Jong Hyun Oh ◽  
...  
Keyword(s):  
Performance Analysis ◽  
Open Loop ◽  
Geothermal System ◽  
Scale Experiment ◽  
Real Scale

scholarly journals Impact of Phase Change Material (PCM) glazing on the energy consumption and solar radiation transmission in an office room located in a semi-arid climate: Analysis of a real-scale experiment

2021 ◽  
Vol 2069 (1) ◽  
pp. 012118
Author(s):  
Daniel Uribe ◽  
Sergio Vera
Keyword(s):  
Energy Consumption ◽  
Solar Radiation ◽  
Phase Change ◽  
Energy Performance ◽  
Arid Climate ◽  
High Solar Radiation ◽  
Scale Experiment ◽  
Office Rooms ◽  
Real Scale ◽  
Semi Arid

Abstract Phase Change Materials (PCMs) are materials with high latent heat. When integrated into the glazing, they arise as an innovative strategy to improve thermal performance and provide thermal inertia in office buildings with a lack of opaque. Climates with high solar radiation and great temperature variation between day and night are especially interesting because PCM glazing can vastly improve these buildings’ energy performance. Then, this paper aims to analyze the energy performance of an office room with PCM glazing compared to a reference room with double-clear glazing, in a semi-arid climate. A real-scale experiment was carried out for a year in two office rooms located in Santiago, Chile. The analyses include energy consumption of the HVAC system to keep the interior temperature of the room in the comfort range and the solar radiation transmitted through the windows. Results are presented for three representative weeks of summer, mid-season and winter. An important reduction of the solar radiation transmitted was achieved in the PCM glazing in respect to the double-clear glazing when the phase change occurs, and a decrease of the energy consumption of cooling and heating mainly for sunny and variable days was found.

Energy-Performance Analysis and Optimization for Networks-on-Chip

2014 ◽  
Vol 36 (5) ◽  
pp. 988-1003 ◽  
Author(s):  
Shuai ZHANG ◽  
Feng-Long SONG ◽  
Dong WANG ◽  
Zhi-Yong LIU ◽  
Dong-Rui FAN
Keyword(s):  
Performance Analysis ◽  
Energy Performance ◽  
Networks On Chip ◽  
On Chip

scholarly journals Analysis of Heat Exchange Rate for Low-Depth Modular Ground Heat Exchanger through Real-Scale Experiment

Energies ◽  
2021 ◽  
Vol 14 (7) ◽  
pp. 1893
Author(s):  
Kwonye Kim ◽  
Jaemin Kim ◽  
Yujin Nam ◽  
Euyjoon Lee ◽  
Eunchul Kang ◽  
...  
Keyword(s):  
Exchange Rate ◽  
Heat Exchanger ◽  
Heat Exchange ◽  
Heat Pump ◽  
Heat Extraction ◽  
Ground Heat Exchanger ◽  
Pump System ◽  
Heat Pump System ◽  
Scale Experiment ◽  
Real Scale

A ground source heat pump system is a high-performance technology used for maintaining a stable underground temperature all year-round. However, the high costs for installation, such as for boring and drilling, is a drawback that prevents the system to be rapidly introduced into the market. This study proposes a modular ground heat exchanger (GHX) that can compensate for the disadvantages (such as high-boring/drilling costs) of the conventional vertical GHX. Through a real-scale experiment, a modular GHX was manufactured and buried at a depth of 4 m below ground level; the heat exchange rate and the change in underground temperatures during the GHX operation were tracked and calculated. The average heat exchanges rate was 78.98 W/m and 88.83 W/m during heating and cooling periods, respectively; the underground temperature decreased by 1.2 °C during heat extraction and increased by 4.4 °C during heat emission, with the heat pump (HP) working. The study showed that the modular GHX is a cost-effective alternative to the vertical GHX; further research is needed for application to actual small buildings.

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