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ID: 104887

Analysis of impact of daylight time savings on energy use of bu / Krarti, Moncef; Hajiah, Ali

Krarti, Moncef	Journal Article
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Publication

2011.

Summary/Abstract

In this paper, a detailed simulation-based analysis is conducted to assess the impact of adopting Daylight Saving Time (DST) on the electrical energy use and peak demand in Kuwait. The analysis focused on the impact of DST in the building sector since it represents 90% of electrical energy usage of Kuwait. The simulation results indicate that the adoption of DST has mixed impacts for Kuwait. While the commercial and the governmental sectors may benefit from the DST, the private residences and apartment buildings can see both their annual energy use and peak demand increase slightly by adopting DST. The overall impact of the DST implementation is rather minimal with a slight increase energy use of about 0.07% and a slight reduction in peak demand of 0.14% or about 12 MW based on 2005 electrical peak demand for Kuwait.

Key Words

Kuwait ; Daylight - Saving Time ; Peak Demand

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ID: 112285

Impact of window selection on the energy performance of residen / Ihm, Pyeongchan; Park, Lyool; Krarti, Moncef; Seo, Donghyun

Krarti, Moncef	Journal Article
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Publication

2012.

Summary/Abstract

With rapidly increasing energy consumption attributed to residential buildings in South Korea, there is a need to update requirements of the building energy code in order to improve the energy performance of buildings. This paper provides some guidelines to improve the building energy code to better select glazing types that minimize total energy use of residential buildings in Korea. In particular, detailed energy simulation analyses coupled with economical and environmental assessments are carried out to assess the thermal, economical, and environmental impacts of glazing thermal characteristics as well as window sizes associated with housing units in various representative climates within South Korea. The results of the analyses have clearly indicated that selecting glazing with low solar heat gain coefficient is highly beneficial especially for large windows and for mild climates. In particular, it is found that using any double-pane low-e glazing would provide better performance for windows in residential buildings than the clear double-pane glazing, currently required by the Korean building energy code.

Key Words

Residential Buildings ; Glazing Type ; Solar Heat Gain Coefficient

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