Energy crisis and global warming need effective programs in energy conservation. A simple and practical standard for energy conservation in building, which enables society and material producers to use, is an effective prescription and regulation. This paper presents preliminary study of the development of minimum requirements for energy-efficient material of education building in Yogyakarta based on overall thermal transfer value (OTTV) and daylighting criteria. Standard daylighting level for classroom with an even distribution and 45 W/m2 for the maximum OTTV are measures of energy efficiency. Simulations of the daylighting level and the distribution with considering the feasibility factor were conducted to define optimum window to wall ratio (WWR). Minimum requirements for the thermal transmittance (U), the shading coefficient (SC), the solar absorption (a) and the visible light transmittance (VT) were generated from the OTTV calculation of classroom model, which meets the daylighting criteria. The material’s embodied energy was considered in setting several combinations of SC, VT, α and U for each window orientation and typical WWR. Defining specific requirements for each window orientation and typical WWR resulted in higher maximum value of U, which then offers more possibilities in the design exploration and selecting low embodied energy materials. A development of this preliminary study based on recent climate conditions will create a simple, climate responsive and complete standard for building energy conservation.
展开▼
机译：能源危机和全球变暖需要采取有效的节能计划。一种有效的处方和法规，它是使建筑和社会能源生产者能够使用的一种简单而实用的建筑节能标准。本文基于总热传递值（OTTV）和采光标准，对日惹教育建筑节能材料的最低要求的发展进行了初步研究。均匀分布的教室的标准采光水平和最大OTTV的45 W / m2是能源效率的度量。在考虑了可行性因素的情况下进行了采光水平和分布的模拟，以定义最佳的窗墙比（WWR）。根据教室模式的OTTV计算，得出了热透射率（U），遮光系数（SC），日光吸收率（a）和可见光透射率（VT）的最低要求。在为每个窗口方向和典型的WWR设置SC，VT，α和U的几种组合时，考虑了材料的内在能量。定义每个窗口方向和典型WWR的特定要求会导致更高的U最大值，从而为设计探索和选择低能耗材料提供更多可能性。这项基于近期气候条件的初步研究的发展将为建筑节能创造一个简单，对气候敏感的完整标准。
展开▼
