Advances in Flexible Riser Technology: Thermal Performance of Flexible Pipes for Deep Water Use: Full Scale Test of New Insulation Material at High External Pressure

2011 ◽  
Author(s):  
Karsten Gorm Nielsen ◽  
Erik Bendiksen
Keyword(s):  
Water Use ◽  
Thermal Performance ◽  
Deep Water ◽  
External Pressure ◽  
Full Scale ◽  
Insulation Material ◽  
Full Scale Test ◽  
Flexible Riser ◽  
Flexible Pipes ◽  
Scale Test

Examining the Thermal Properties of Full-Scale Test Modules on the Overall Thermal Performance of Buildings

2021 ◽  
pp. 169-177
Author(s):  
Aiman Albatayneh ◽  
Dariusz Alterman ◽  
Adrian Page ◽  
Behdad Moghtaderi
Keyword(s):  
Thermal Properties ◽  
Thermal Performance ◽  
Full Scale ◽  
Full Scale Test ◽  
Scale Test

scholarly journals Towards moisture safe ventilated cold attics – Monitored conditions in a full-scale test building

2020 ◽  
Vol 172 ◽  
pp. 23003
Author(s):  
Thor Hansen ◽  
Eva Møller ◽  
Ruut Peuhkuri
Keyword(s):  
Thermal Resistance ◽  
Buffering Capacity ◽  
Building Envelope ◽  
Full Scale ◽  
Temperate Climate ◽  
Insulation Material ◽  
Full Scale Test ◽  
Hygrothermal Performance ◽  
Scale Test ◽  
Moisture Buffering

Existing building stock in Europe accounts for approx. 40% of the total energy consumption. Upgrading the thermal insulation of the existing buildings is an important measure to reduce heat losses through the building envelope. In some cases, increasing the thermal resistance of the construction may compromise the hygrothermal performance of the retrofitted construction. In particular, if vapour barrier is necessary for the good performance and it is practically difficult, if not even impossible, to install a well-sealed air- and vapour tight layer. To investigate the robustness of the hygrothermal performance of ventilated cold attics – with or without a vapour barrier – a monitoring campaign in a full-scale test building was set up. Also role of number of other parameters like moisture buffering capacity of the insulation material and thermal resistance was investigated. This paper presents part of this measuring campaign, which includes conditions both in the attic space and inside the insulation layer. The monitored data covers a period with two winters. The results show that it in temperate climate is practically indifferent for the hygrothermal performance of the monitored, well-ventilated attics with air-tight ceilings whether there is a vapour barrier or not and if the insulation material has moisture buffering capacity or not.

Hygrothermal performance of cold ventilated attics above different horizontal ceiling constructions: Full-scale test building

2019 ◽  
Vol 44 (1) ◽  
pp. 67-91
Author(s):  
Thor Hansen ◽  
Eva B Møller ◽  
Torben Tvedebrink
Keyword(s):  
Relative Humidity ◽  
Full Scale ◽  
Moisture Level ◽  
Insulation Material ◽  
Full Scale Test ◽  
Indoor Climate ◽  
Outdoor Climate ◽  
Hygroscopic Properties ◽  
Insulation Thickness ◽  
Scale Test

It is often assumed that reduced heat flux to a ventilated attic reduces the temperature and thereby increases the relative humidity. Consequently, the importance of having a tight air and vapour barrier in the ceiling becomes more important with increased insulation. Therefore, in Denmark, the recommendation is to have a tight vapour barrier when re-insulating ceilings against cold ventilated attics to a total of 150-mm insulation material. The recommendation is independent of the insulation material’s hygroscopic properties or the indoor moisture level. The aim of this project was to test the relevance of the recommendation through testing in a full-scale test building (7 × 22 m) with a series of six different ceilings with or without a vapour barrier and variation in the insulation material comprising insulation thickness and its hygroscopic properties. The examination was performed with a controlled indoor climate after an European humidity classes 1–3 and a natural outdoor climate. The study showed very little differences in temperature and relative humidity in the cold ventilated attics, while the humidity class of the indoor climate significantly affects the absolute moisture content in the attic. However, the climate in the attic did not cause mould growth in the test sections, even for humidity class 3. Consequently, in the test building the thickness or hygroscopic properties of the insulation material did not have a significant effect on the moisture level in attics and did not determine whether a vapour barrier should be installed. In this study with the given climate, a vapour barrier is unnecessary in well-ventilated attics if the ceiling is airtight.

scholarly journals Thermal Performance of an Electric-Driven Smart Window: Experiments in a Full-Scale Test Room and Simulation Model

2018 ◽  
Author(s):  
Giovanni Ciampi ◽  
Antonio Rosato ◽  
Sergio Sibilio ◽  
Giuseppe Peter Vanoli ◽  
Manuela Almeida ◽  
...  
Keyword(s):  
Simulation Model ◽  
Thermal Performance ◽  
Full Scale ◽  
Full Scale Test ◽  
Smart Window ◽  
Test Room ◽  
Scale Test

Full-Scale Test on Coupled Thermo-Hydro-Mechanical Processes in Engineered Barrier System

1994 ◽  
Vol 1 (1) ◽  
pp. 77-83
Author(s):  
Yoshiji Moro ◽  
Tomoo Fujita ◽  
Takeshi Kanno ◽  
Akira Kobayashi
Keyword(s):  
Full Scale ◽  
Full Scale Test ◽  
Scale Test ◽  
Engineered Barrier

The assessment of particulate matter (PM2.5) removal efficiency on air cleaner products through full scale test in Korea

2019 ◽  
Vol 18 (1) ◽  
pp. 76-80 ◽  
Author(s):  
Kichul Kim ◽  
Pil-Ju Park ◽  
Soomi Eo ◽  
Seungmi Kwon ◽  
Kwangrae Kim ◽  
...  
Keyword(s):  
Particulate Matter ◽  
Removal Efficiency ◽  
Full Scale ◽  
Full Scale Test ◽  
Air Cleaner ◽  
Scale Test

Predicting Roof Diaphragm and Endwall Stiffness From Full-Scale Test Results of a Metal-Clad, Post-Frame Building

1992 ◽  
Vol 35 (3) ◽  
pp. 977-985 ◽  
Author(s):  
K. G. Gebremedhin ◽  
J. A. Bartsch ◽  
M. C. Jorgensen
Keyword(s):  
Full Scale ◽  
Test Results ◽  
Full Scale Test ◽  
Frame Building ◽  
Scale Test

Numerical evaluation of contaminants mixing uniformity in a full-scale test chamber with mixing fan

2020 ◽  
pp. 1420326X2097902
Author(s):  
Hai-Xia Xu ◽  
Yu-Tong Mu ◽  
Yin-Ping Zhang ◽  
Wen-Quan Tao
Keyword(s):  
Concentration Distribution ◽  
Test Chamber ◽  
Full Scale ◽  
Numerical Results ◽  
Test Method ◽  
Test Accuracy ◽  
Full Scale Test ◽  
Concentration Region ◽  
Airflow Field ◽  
Scale Test

Most existing models and standards for volatile organic compounds emission assume that contaminants are uniform in the testing devices. In this study, a three-dimensional transient numerical model was proposed to simulate the mass transport process based on a full-scale test chamber with a mixing fan, and the airflow field and contaminants concentration distribution were obtained within the chamber under airtight and ventilated conditions. The model was validated by comparing the numerical results with experimental data. The numerical results show that the contaminant source position and the airflow field characteristics have significant impact on the contaminant mixing, and the fan rotation has an important role in accelerating mixing. In the initial mixing stage, the concentration distribution is obviously uneven; as the mixing progresses, it gradually reaches acceptable uniformity except for some sensitive regions, such as high concentration region at the injection point of the contaminants and low concentration region at the air inlet. To ensure test accuracy, the monitor should avoid above sensitive regions; and some special regions are recommended where contaminant concentration uniformity can be reached sooner. The ventilated chamber results indicate that the mixture of contaminants in the chamber is actually better than the results shown by conventional test method.

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