Foam Glass Gravel Experimentally Made in a 10 kW-Microwave Oven

Journal La Multiapp

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Field Value
 
Title Foam Glass Gravel Experimentally Made in a 10 kW-Microwave Oven
 
Creator Paunescu, Lucian
Axinte, Sorin Mircea
Cosmulescu, Felicia
 
Subject Foam Glass Gravel Lump
Microwave Heating
Glass Waste
Glycerol
Water Glass
 
Description Abstract                                                        
The experimental manufacture of foam glass gravel from glass waste has been quantitatively extended by increasing the power of the microwave oven from 0.8 to10 kW, the authors' interest being focused on the quality of the foamed product. The work equipment was rather improvised, the existing used oven not being adequate except to small extent for the requirements of the experiment, but it allowed obtaining a product similar to those industrially manufactured by conventional techniques. Using a recipe previously tested on the 0.8 kW-microwave oven composed of 1 wt.% glycerol as a liquid foaming agent together with 8 wt.% water glass as an enveloping agent and 8 wt.% water as a binder, the main features of the foam glass gravel lumps were: bulk density of 0.22 g/cm3, porosity of 88.9%, thermal conductivity of 0.057 W/m·K, compressive strength of 5.9 MPa and pore size between 0.10-0.30 mm. The specific energy consumption was negatively influenced by the excessive internal volume of the oven, but even under these conditions its value was relatively low (between 1.53-1.69 kWh/kg).
 
Publisher Newinera Publisher
 
Date 2021-06-11
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
 
Format application/pdf
 
Identifier http://www.newinera.com/index.php/JournalLaMultiapp/article/view/347
10.37899/journallamultiapp.v2i2.347
 
Source Journal La Multiapp; Vol. 2 No. 2 (2021): Journal La Multiapp; 37-46
2721-1290
2716-3865
 
Language eng
 
Relation http://www.newinera.com/index.php/JournalLaMultiapp/article/view/347/304
 
Rights Copyright (c) 2021 Journal La Multiapp
http://creativecommons.org/licenses/by-sa/4.0/
 

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