Hasil untuk "Details in building design and construction. Including walls, roofs"

Zhengrong Li, Wenjing Xing, Jingting Sun et al.

Ornella Iuorio, Jamiu A. Dauda, Paulo B. Lourenço

Dang Khai Tran, Gi Young Jeong

Ali Mirjalili, Abolfazl Eslami, Reza Morshed

Barbara Klemczak, Aneta Żmij

Simon Beecham, Mostafa Razzaghmanesh, Rosmina Bustami et al.

Shuna Ni, Anna C. Birely

Marjorie Musy, Laurent Malys, Christian Inard

Mohammad Amir Sherafati, Mohammad Reza Sohrabi

Ernest Bernat, Lluis Gil, Pere Roca et al.

Thanos N. Stasinopoulos

This study focuses on the widely accepted principle that the equatorial sides of a building offer the optimum solar potential for solar space heating. A comparison between the solar irradiation on the south walls and horizontal roofs of buildings in London and Athens highlights the energy benefits of facing the sky rather than the equator. Four building examples exemplify practical ways to utilize the rather neglected potential of roofs as solar collectors for space heating.

Agustina Gutierrez, Juan Manuel Moro, Pablo Marinangeli

ABSTRACT Urban areas are increasingly impacted by climate change, leading to higher temperatures that cause discomfort and increased energy demands. This study examines the effectiveness of extensive green roofs in reducing heatwave temperatures and improving thermal comfort. We compared the thermal dynamics and energy efficiency of green roofs to conventional roofs during a heatwave in a semi-arid region of Argentina. Conventional roofs reached peak temperatures of 44.5°C, while green roofs maintained temperatures around 31°C, showcasing their ability to regulate roof temperatures. Thermal fluctuations on conventional roofs varied nearly 20°C from day to night, while green roofs experienced fluctuations of less than 1°C. Conventional roofs had incoming heat flow values from –3.7 W/m 2 to 114.4 W/ m 2 , whereas green roofs ranged from 26.2 W/m 2 to 46.2 W/m 2 , with some negative flows indicating a cooling effect. We found an 11% to 16% reduction in cooling energy consumption with green roofs. This study highlights the benefits of native plant extensive green roofs in semi-arid cities for reducing heat, improving thermal comfort, and enhancing energy efficiency.

Charles F. Mitchell

Paula Baty, Erdogan Sener

H. Hens, R. Zheng, A. Janssens

DA Bruce, PHC Chan, GJ Tamaro

The new Richmond Avenue Pump Station in Staten Island NY was successfully constructed to a depth 27m below existing grade within a 16.5m circular, 50m deep slurry wall cofferdam. Construction was carried down through water bearing sands with minimal dewatering of the interior of the cofferdam and with no distress to the surrounding residential structures. This paper describes the design, construction and performance of the slurry wall and the general excavation.

George E Heck