A Study on Insulation Characteristics of Glass Wool and Mineral Wool Coated with a Polysiloxane Agent

Jeon, Chan-Ki; Lee, Jae‐Seong; Chung, Hoon; Kim, Ju-Ho; Park, Jong Pil

doi:10.1155/2017/3938965

Cited by 29 publications

(12 citation statements)

References 19 publications

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“…Penelitian yang dilakukan oleh Jeon Chan-Ki styrofoam dapat digunakan sebagai bahan absorpsi pada knalpot sepeda motor karena karakteristiknya yang dapat didaur ulang, insulasi termal yang tinggi, insulasi suara yang sangat baik dan ringan [14]. Kemudian, menurut Sandi bahan yang kerap digunakan sebagai material absorben bunyi adalah styrofoam karena memiliki koefisien serap bunyi yang baik [15].…”

Section: Kemajuanunclassified

“…Koefisien serap bunyi (α) semakin menurun dengan bertambahnya ketebalan papan partikel (sampel penyerap) [3]. Sedangkan penelitian yang dilakukan oleh Jeon, Chan-Ki menunjukkan bahwa styrofoam dapat digunakan sebagai bahan absorpsi pada knalpot sepeda motor karena karakteristiknya yang dapat didaur ulang, insulasi termal yang tinggi, insulasi suara yang sangat baik dan ringan [14].…”

Section: Gambar 4 Grafik Pengukuran Absorpsi Bunyiunclassified

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Aplikasi Styrofoam Sebagai Absorpsi Bunyi

2022

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This study aims to determine the level of sound attenuation of Styrofoam material. This research is using a noise meter application Decibel X: dB Sound Level Meter and a sound generator as a sound source. Styrofoam as an acoustic material with a thickness of 1 cm; 1.5 cm; 2 cm; 2.5 cm ; 3 cm; 3.5 cm and 4 cm. The average absorption coefficient obtained in this study with a material thickness of 1 cm is 0.023. Then the average absorption coefficient at a thickness of 1.5 cm is 0.031. While the average absorption coefficient at a material thickness of 2 cm is 0.040. Furthermore, the average sound absorption coefficient at a thickness of 2.5 cm and 3 cm has the same value, namely 0.039. Then, the average sound absorption coefficient at a thickness of 3.5 cm and 4 cm also has the same value, which is 0.038. Based on the research that has been done, it can be concluded that sound absorption at frequencies below 1000 Hz occurs significant sound absorption. At frequencies of 200 Hz, 400 Hz, 600 Hz and 800 Hz, the average sound absorption increases from 1 cm to 3.5 cm of Styrofoam thickness. While the thickness of Styrofoam 4 cm on average did not show a significant increase in sound absorption. Styrofoam thickness of 4 cm can effectively absorb sound at a frequency of 1000 Hz only.

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Section: Kemajuanunclassified

Section: Gambar 4 Grafik Pengukuran Absorpsi Bunyiunclassified

Aplikasi Styrofoam Sebagai Absorpsi Bunyi

2022

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“…It has a fire rating of A1. Glass wool has good vapor permeability, i.e., it only slightly impedes the movement of steam [22][23][24]. In the case of multilayer thermal insulation, it is recommended for use just below the outermost layer.…”

Section: The Tested Materialsmentioning

confidence: 99%

Systematic Analysis of Micro-Fiber Thermal Insulations from a Thermal Properties Point of View

2021

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In the European Union, almost 40% of all energy consumption comes from buildings, while another 20–25% comes from transport. In the European Union, including Hungary, only buildings with almost-zero energy demand could be built after 2020, and the use of renewable energies must be strengthened. The Renewable Directive stipulated that by 2020, the share of renewable energy in buildings must be 25%, and in transport it must be 10%; the use of electric vehicles is vital. There are about four million dwellings in Hungary, of which approximately three million need to be renovated, and only some of these (a few hundred) meet the cost-optimized level of the 2020 directive. The use of insulation materials is very important in the transport sector, too. Insulation materials are also used by aircraft and electric vehicles. To reduce the energy loss from buildings, different insulation materials can be used; investigations of insulation materials are very important. This paper presents a comprehensive research report on insulation materials which could be used for building elements, HVAC (heating, ventilation, and air conditioning appliances) equipment, and vehicles. In this paper, laboratory investigations will be presented along with calculations to better understand the properties and behavior of these materials. For this, firstly structural analysis with scanning electron microscope will be presented. Moreover, the paper will present thermal conductivity and combustion heat measurement results. The sorption and hydrophobic behavior of the materials will be also revealed. Finally, the article will also display differential scanning calorimetry measurements and Raman spectroscopy results of the samples. The research was conducted on four different types of colorized microfiber lightweight wool insulation.

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“…Different methods was applied to laboratory room, the engineers must open the ceiling and insulate the air conditioning pipe with the materials namely glass wool. Glass wool has benefit that it can absorb heat and easy to install, however the shortage is when it contacted directly with skin it causes irritation, and sometimes respiratory allergies [10]. The insulation foam was also implemented in the laboratory room with heavy condensation.…”

Section: Figure 1 Directional Airflow From Less To High Risk In Labomentioning

confidence: 99%

The Challenges in Managing Biorisk in National Health Research Laboratory from Facility Engineering Perspective

Susanti¹,

Setiawaty²,

Subangkit³

et al. 2020

Proceedings of the 4th International Symposium on Health Research (ISHR 2019)

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Biorisk or known as Biosafety and Biosecurity is an activity to promote safety and security when handling dangerous biological agents (pathogen). The application of biorisk management and fulfillment of qualifications for laboratory building facilities according to the standards becomes a necessity. National Institute of Health Research and Development, Ministry of Health of Indonesia constructed Biosafety laboratory level 2 and biosafety laboratory level 3 buildings in 2007. Meanwhile at the time of the construction of the laboratory, the reference and guideline for building a laboratory was limited also regulation were not yet available. Objective: We presented various challenges in conducting biorisk management through facilities engineering in health research laboratories National Institute of Health Research and Development, Ministry of Health of Indonesia. Method: We used descriptive method to present engineering maintenance practice and experience by looking at the gaps between biosafety and biosecurity standard with the availability of resources in laboratory facilities engineering perspective. Result: The challenge in engineering practice presented in BSL-2 and BSL-3 was the pathogen containment, which include building ventilation system, mechanical-electrical system and other engineering based on experience in managing National Health Research Laboratory. Another engineering isuue that found quite difficult was managing the presence of condensation and airflow system in order to prevent cross contamination. In conclusion that planning and risk assessment is essential part when constructed a laboratory and the national guidelines for the construction of biosafety laboratories need to be made in Indonesia.

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A Study on Insulation Characteristics of Glass Wool and Mineral Wool Coated with a Polysiloxane Agent

Cited by 29 publications

References 19 publications

Aplikasi Styrofoam Sebagai Absorpsi Bunyi

Aplikasi Styrofoam Sebagai Absorpsi Bunyi

Systematic Analysis of Micro-Fiber Thermal Insulations from a Thermal Properties Point of View

The Challenges in Managing Biorisk in National Health Research Laboratory from Facility Engineering Perspective

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