Luxury isolation: Curtain wall construction and the impact on the expectation of acoustic isolation.

2008 ◽  
Vol 124 (4) ◽  
pp. 2463-2463
Author(s):  
Carl Giegold ◽  
Molly Norris
Keyword(s):  
Curtain Wall ◽  
Wall Construction ◽  
The Impact

scholarly journals Absorption of 1-MCP by Nontarget Materials during Storage

HortScience ◽  
2005 ◽  
Vol 40 (4) ◽  
pp. 1131D-1131
Author(s):  
Fernando Vallejo ◽  
Randolph Beaudry
Keyword(s):  
Polyurethane Foam ◽  
External Surface ◽  
Construction Materials ◽  
Fire Retardant ◽  
External Surface Area ◽  
Sorptive Capacity ◽  
Holding Period ◽  
Storage Atmosphere ◽  
Wall Construction ◽  
The Impact

We tested the sorptive capacity of a number of nontarget materials found in apple storage rooms on their capacity to remove 1-MCP from the storage atmosphere and thereby compete with the fruit for the active compound. Furthermore, we evaluated the impact of temperature and moisture. Nontarget materials included bin construction materials [high density polyethylene (HDPE), polypropylene (PP), weathered oak, nonweathered oak, plywood, and cardboard] and wall construction materials (polyurethane foam and cellulose-based fire retardant). Each piece had an external surface area of 76.9 cm2. We placed our “nontarget” materials in 1-L mason jars and added 1-MCP gas to the headspace at an initial concentration of ≈30 μL·L-1. Gas concentrations were measured after 2, 4, 6, 8, 10, and 24 hours. The concentration of 1-MCP in empty jars was stable for the 24-hour holding period. Little to no sorption was detected in jars containing dry samples of HDPE, PP, cardboard, polyurethane foam, or fire retardant. Inclusion of plywood, nonweathered oak, and weathered oak lead to a loss of 10%, 55%, and 75% of the 1-MCP after 24 hours, respectively. Using dampened materials, no sorption resulted from the inclusion of HDPE, PP, polyurethane foam, or the fire retardant. However, the rate of sorption of 1-MCP by dampened cardboard, plywood, weathered oak, and nonweathered oak increased markedly, resulting in a depletion of ≈98%, 70%, 98%, and 98%, respectively. The data suggest that there are situations where 1-MCP levels can be compromised by wooden and cardboard bin and bin liner materials, but not by plastic bin materials or typical wall construction materials.

scholarly journals Improving thermal stability and reduction of energy consumption by implementing Trombe wall construction in the process of building design: The Serbia region

2018 ◽  
Vol 22 (6 Part A) ◽  
pp. 2355-2365
Author(s):  
Veliborka Bogdanovic ◽  
Dusan Randjelovic ◽  
Miomir Vasov ◽  
Marko Ignjatovic ◽  
Jelena Stevanovic
Keyword(s):  
Energy Consumption ◽  
Residential Buildings ◽  
Building Design ◽  
Energy Performance ◽  
Wall Structure ◽  
Climatic Data ◽  
The South ◽  
Trombe Wall ◽  
Wall Construction ◽  
The Impact

This paper analyzes the impact of Trombe wall construction on heating and cooling demands of building with form (rectangular single-store building of about one hundred square meters area) which is common for individual residential buildings in the Republic of Serbia. Trombe wall, as a representative of a passive solar design, was installed on the south wall of the building. Model of the building was made in the Google SketchUp software, while the results of energy performance were obtained using EnergyPlus and jEplus. Parameters of thermal comfort and climatic data for the area of city of Belgrade, Republic of Serbia, were taken into account. Coverage of the south fa?ade was varied, as well as the thickness of the thermal mass and orientation. Energy consumption of the object is discussed, based on obtained results of the analysis. According to comparative analysis of the above mentioned models it can be concluded that the application of the Trombe wall structure on south side may lead to savings of 33% on heating, but also the higher energy consumption for cooling. Total energy consumption on an annual basis is reduced by using this system.

scholarly journals Identification of factors shaping tender prices for lightweight

2019 ◽  
Vol 28 (2) ◽  
pp. 171-182 ◽  
Author(s):  
Agnieszka Leśniak ◽  
Monika Górka ◽  
Damian Wieczorek
Keyword(s):  
New Method ◽  
Public Buildings ◽  
Construction Costs ◽  
Curtain Wall ◽  
Cost Estimates ◽  
Factors Affecting ◽  
Technical Parameters ◽  
Reliable Estimation ◽  
Project Documentation ◽  
Wall Construction

A reliable estimation of the tender prices for lightweight curtain walls is a complex and time-consuming process for the contractor, as it depends on many factors related to both the technical parameters of the designed façade and the investor’s requirements for the solutions selected. The aim of the paper is to identify the factors affecting the costs of manufacturing lightweight curtain walls. Data regarding the complexity of curtain wall construction costs was obtained on the basis of the analysis of project documentation, cost estimates and as-built accounts for selected 50 public buildings. The authors identified the factors affecting the costs of aluminum-glass facades and ventilated facades. Their identification is the first element necessary to develop a new method of predicting the costs of implementation of such types of facade which are included in the authors’ research plans.

A Pilot Study Investigating the Impact of Indoor Wall Construction on Performance during Long Monotonous Work

2013 ◽  
Vol 57 (1) ◽  
pp. 516-520 ◽  
Author(s):  
Yuka Takai ◽  
Akihiko Goto ◽  
Ken-ichi Takao ◽  
Noriaki Kuwahara ◽  
Hiroyuki Hamada
Keyword(s):  
Pilot Study ◽  
Wall Construction ◽  
The Impact

Research and Engineering in the Design of Building Walls

2014 ◽  
Vol 578-579 ◽  
pp. 527-531
Author(s):  
Qiao Zhang ◽  
Nan Zheng
Keyword(s):  
High Performance ◽  
Wind Pressure ◽  
Frame Structure ◽  
Curtain Wall ◽  
Core Tube ◽  
Organic Part ◽  
Safety And Reliability ◽  
Building Walls ◽  
The Impact ◽  
Modern Building

Modern building walls is no longer a decoration, a simple external maintenance of the structure, but more and more deeply into an organic part of the whole building and involved in the functional construction of the entire building. The impact on the safety and energy saving performance of the whole building has come to a crucial point. A height of 237.7m core tube frame structure actually works in Qingdao cited as an example and the design of high-performance curtain wall system is studied. Many considerations in choosing the design and construction aspects of wall materials,design methods are described in watertight, airtight, wind pressure, the safety and reliability of modern curtain wall project.

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