scholarly journals Ensuring a Sustainable Structure and Efficiency of Thermal Insulation Straw-Boon Slabs in Full-Scale Conditions

2017 ◽  
Vol 20 (1) ◽  
Author(s):  
Aleksandr Bakatovich ◽  
Nadezhda Davydenko
Keyword(s):  
Thermal Insulation ◽  
Full Scale

scholarly journals Moisture performance of a new thermal insulation composite for interior application

2020 ◽  
Vol 172 ◽  
pp. 01001
Author(s):  
Carsten Rode ◽  
Naja Kastrup Friis ◽  
Christian Pedersen ◽  
Nickolaj Feldt Jensen
Keyword(s):  
Thermal Insulation ◽  
Field Test ◽  
Active Material ◽  
Field Tests ◽  
Full Scale ◽  
Small Samples ◽  
Brick Wall ◽  
Laboratory Setup ◽  
Mineral Fibre ◽  
Moisture Performance

The paper introduces prototypes of a new composite insulation product for interior application. The product consists of a standard mineral fibre insulation batt, which is wrapped in a combination of a thin fabric of moisture absorbing, capillary active material and vapour retarding membranes. The insulation composite has been tested with small samples in a laboratory setup and in an outdoor field test on a full-scale brick wall, and has so far shown promising results in comparison with other products. The paper describes the new insulation composite and the initial moisture tests that have been made with its constituents as well as results from the laboratory and field tests of its ability to prevent moisture accumulation.

Fire Resistance Behavior of Full-scale Self-thermal Insulation Sandwich Walls Made of Textilereinforced Concrete

2019 ◽  
Vol 37 (1) ◽  
pp. 239-248
Author(s):  
Linghua Shen ◽  
Jiyang Wang ◽  
Shilang Xu ◽  
Godwin Amoako-Atta
Keyword(s):  
Thermal Insulation ◽  
Fire Resistance ◽  
Full Scale

Water Absorption Effect on Syntactic Foam Thermal Insulation of a Flexible Pipe

2006 ◽  
Author(s):  
Alain Chalumeau ◽  
Antoine Felix-Henry
Keyword(s):  
Thermal Conductivity ◽  
Thermal Properties ◽  
Water Absorption ◽  
Thermal Insulation ◽  
Syntactic Foam ◽  
Full Scale ◽  
Flexible Pipe ◽  
Thermal Tests ◽  
Insulating Material ◽  
Water Absorption Effect

Thermal insulation of a flexible pipe for deepwater applications is generally obtained by spiraling syntactic foam extruded tapes around the pipe core, in between two thermoplastic sheaths. As water tightness of the insulating annulus can frequently not be guaranteed, water absorption and the effect on thermal properties of insulating material have to be determined, so as to be taken into account for Overall Heat Transfer Coefficient calculation of the flexible pipe. It is required to demonstrate the overall suitability of a specific insulating material for a given application. The first part of this paper describes accelerated fresh water absorption tests and subsequent thermal conductivity measurements, conducted on polypropylene syntactic foam filled with glass micro-spheres. Based on test data in the 50°C–100°C temperature range, a prediction model has been established to calculate water absorption for service life as long as 20 years. A relationship between thermal conductivity variation and water content has been demonstrated, so that thermal conductivity of material exposed to water can be calculated versus temperature and time of exposure, for design purpose. The second part describes the full scale thermal tests that have been performed by Technip, in order to compare the measured thermal properties and heat losses of the flexible pipes in vertical or horizontal positions, with the computer calculations. Finally, based on lab test ageing and full scale tests on non aged flexible pipe, Technip is able to predict the full thermal behaviour during all the lifetime of the pipe.

A System Design Approach for Thermal Insulation of Subsea Equipment Using CFD

2006 ◽  
Author(s):  
Stein Sorbye ◽  
Randi Moe
Keyword(s):  
Thermal Insulation ◽  
Oil And Gas ◽  
Production Systems ◽  
Gas Production ◽  
Full Scale ◽  
Thermal Design ◽  
Light Hydrocarbons ◽  
Stringent Requirement ◽  
Oil And Gas Production ◽  
Computational Analyses

Subsea oil and gas production systems are becoming more complex and more automated. At ocean depths down to 2300m reliability and dependability are of utmost importance. During a production shut-down the production fluid in the subsea equipment will be cooled off by the surrounding ocean water. Simultaneous presence of light hydrocarbons and water in a cold environment with relatively high pressure can create hydrates that are ice like substances capable of blocking the production piping and prevent fluid flow. The equipment is therefore thermally insulated to slow down the cooling process. Field operators are challenging subsea equipment makers to break new boundaries with respect to passive thermal insulation and to increase reliability of the thermal performance. This paper will present the methodology and results of a thermal insulation design project conducted for Total E&P Angola. The project aimed to meet cool down times in excess of 20 hours in areas where 8 hours were previously the norm. In order to meet such a stringent requirement, a system approach to thermal design had to be adopted and reliance on computational analyses tools had to be strengthened. Following a design phase in which the computational analyses tools CFD and FE were used to design the thermal insulation, a full scale cool down test was performed with a subsea Manifold. The simulated cool down results generated by CFD and FE compared well to the results of a full scale cool down test.

scholarly journals SURVEY OF THERMAL INSULATION PERFORMANCE AND SOLAR HEAT GAIN PERFORMANCE OF WINDOWS WITH SHADING DEVICES USING A FULL-SCALE EXPERIMENTAL BUILDING

2020 ◽  
Vol 26 (64) ◽  
pp. 1001-1006
Author(s):  
Keiichiro TANIGUCHI ◽  
Masayuki MAE ◽  
Siyu JI ◽  
Kozo TAKASE ◽  
Teruki KOJIMA ◽  
...  
Keyword(s):  
Thermal Insulation ◽  
Full Scale ◽  
Heat Gain ◽  
Solar Heat ◽  
Solar Heat Gain ◽  
Shading Devices ◽  
Insulation Performance

scholarly journals Full-scale Testing of Modern Unreinforced Thermal Insulation Clay Block Masonry Houses

2015 ◽  
pp. 229-246 ◽  
Author(s):  
Andreas Jäger ◽  
Suikai Lu ◽  
Hervé Degée ◽  
Christophe Mordant ◽  
Ambra Chioccariello ◽  
...  
Keyword(s):  
Thermal Insulation ◽  
Full Scale ◽  
Full Scale Testing

Design, development and testing of digital MEMS pressure sensor array for full-scale vibroacoustic measurements

2021 ◽  
Vol 263 (2) ◽  
pp. 4343-4354
Author(s):  
Pankaj Joshi ◽  
Frank Khelfa ◽  
Hendrik Lehmkuhl ◽  
Patrick Cordes ◽  
Patrick Naujoks ◽  
...  
Keyword(s):  
Thermal Insulation ◽  
Pressure Sensor ◽  
Sensor Array ◽  
Pressure Sensors ◽  
Full Scale ◽  
Design Development ◽  
Cabin Noise ◽  
Digital Pressure ◽  
Noise Measurements ◽  
Strong Agreement

This manuscript addresses design, development, and application of micro-electro-mechanical systems (MEMS) based digital pressure sensor array for vibroacoustic measurements. These vibroacoustic measurements were conducted on a A320 type single aisle aircraft demonstrator subjected to broadband as well as tonal excitations. Cabin noise levels were measured with both condenser microphones as well as digital MEMS pressure sensor array. The measured cabin noise shows strong qualitative as well as quantitative agreement between both type of measurement devises for full scale cabin noise measurements inside an aircraft demonstrator. The observed strong agreement is valid for both single wall (fuselage with thermal insulation) and double wall (fuselage with thermal insulation and trim panel) cabin noise measurements. Such strong agreement within 1.0 dB tolerance is significantly motivating for further development of reliable but low-cost MEMS based measurement devises and corresponding efficient data post-processing algorithms for full scale vibroacoustic measurements in general. Additionally, it is also demonstrated that the large number of MEMS based digital pressure sensors can be used in areas where the physical space constraints are high. This demonstration shows strong potential to derive additional vibroacoustic indicator for the development and the testing of future noise control solutions in a non-traditional way.

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