A Young Nam’s scientific contributions


Ad

What is this page?


This page lists works of an author who doesn't have a ResearchGate profile or hasn't added the works to their profile yet. It is automatically generated from public (personal) data to further our legitimate goal of comprehensive and accurate scientific recordkeeping. If you are this author and want this page removed, please let us know.

Publications (3)


Fig. 2 PV module installation on the university building rooftop located in Seoul, Korea
Figure 8 represents the monthly solar irradiance received and generated output in kWh/(m 2 ·day) for two consecutive years (Sep. 2015-Aug. 2017). From Fig. 8, a strong correlation between output generation and
Fig. 14 Correlation between the monitored measured data and the calculated output value using calculated module temperature (Sep. 2015-Aug. 2016)
PV panel specification
PV system sensor specifications

+4

Analysis of in situ performance of rooftop PV system in Seoul, South Korea
  • Article
  • Full-text available

April 2023

·

36 Reads

·

2 Citations

International Journal of Air-Conditioning and Refrigeration

Ravneet Singh

·

A. Young Nam

·

Jong Jun Park

·

Young Il Kim

This paper presents a study of a 98.1 kW-PV system facing south at an inclined angle of 15º on the roof of a university building in Seoul, South Korea (latitude 37.63° N and longitude 127.1° E). The system performance was analyzed for 2 years from Sep. 2015 to Aug. 2017. The average electrical power output was 0.59 kWh/(m ² ·day) with a 16.9% average annual efficiency for the 1st year which further decreased to 0.58 kWh/(m ² ·day) with average annual efficiency of 17.6% in the 2nd year. The annual irradiance was 3.50 kWh/(m ² ·day) for the 1st year and 3.31 kWh/(m ² ·day) for the 2nd year with a total annual output generation of 105.4 MWh and 103.5 MWh, respectively. Average daily power generations were 2.93 and 2.89 kWh/(kWp·day) for 2 years, respectively, with an annual performance ratio range of 80 ~ 90%. Predicted module temperatures show a good correlation with measured temperatures. Predicted and measured output values show a strong correlation. During the 1st year at a maximum module temperature of 60ºC, power output loss was found to be 13.3%, while in the 2nd year at a maximum module temperature of 57ºC, the power output loss observed was 12.2%.

Download


Ad

Citations (2)


... The average PR calculated in other literature using real-time data ranges from 77 to 87%, where the global standard is 80% (Khalid et al. 2016). Yearly average PR calculated for PV systems such as a 98.1 kW monocrystalline PV system with a 327 W module in Seoul, Korea is found 83-87% (Singh et al. 2023), 11.2 kW polycrystalline silicon with a 280 W module is found 78% in India (Sharma and Goel 2017), and for 5 kW PV system, it is 77% in India (Yadav and Bajpai 2018). ...

Reference:

Analysis of 1-year energy data of a 5 kW and a 122 kW rooftop photovoltaic installation in Dhaka
Analysis of in situ performance of rooftop PV system in Seoul, South Korea

International Journal of Air-Conditioning and Refrigeration

... The building has a floor area of 176 m 2 (width 20.0 m × H 6.0 m × depth 8.8). Nam et al. (2018) studied the heating and cooling load design temperature in eight cities in Korea with the Korea Meteoroidal Administration weather data from 1982 to 2015. The space heating and cooling load of the building is 13.8 and 10.6 kW, respectively, in the design temperature heating at −11.9°C and cooling at 32.3°C (Author Anonymous, 2015; Nam et al., 2018). ...

Study on the Change of South Korea Outdoor Design Temperature according to the Assigned Period
  • Citing Article
  • May 2018

Journal of Clean Energy Technologies