تصفح Research Units حسب العنوان
السجلات المعروضة 4137 -- 4156 من 4726
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Thermal and mechanical characterization of injection moulded high density polyethylene/paraffin wax blends as phase change materials
( Elsevier Ltd , 2014 , Article)Thermal and mechanical properties of blends based on high density polyethylene and paraffin wax were investigated. The blends were prepared from 5 to 50vol. % of paraffin wax employing a twin-screw extruder. Thermal behaviour ... -
Thermal and mechanical properties of injection molded recycled high density polyethylene blends with virgin isotactic polypropylene
( Elsevier, Ltd , 2013 , Article)Polymer blending has become an important field in polymer research and especially in the area of recycling. In this research the target was to reduce the polymer waste problem. Therefore, recycled high density polyethylene ... -
Thermal and mechanical properties of PP/HDPE/wood powder and MAPP/HDPE/wood powder polymer blend composites.
( Elsevier , 2017 , Article)The morphology and properties of blends of PP/HDPE and MAPP/HDPE blends, and their composites with wood powder, were investigated in this paper. The blends showed two-phase morphologies, and MAPP interacted better than ... -
Thermal and mechanical stability of microwave sintered cold compact bismuth telluride thermoelectric material
( Elsevier , 2022 , Article)Both p-type and n-type bismuth telluride (Bi2Te3)-based thermoelectric materials demonstrate high thermoelectric efficiency in the low-temperature thermoelectric modules, but their constrained thermal and mechanical stability ... -
Thermal behavior and post-heating fracture characteristics of polypropylene microfiber-reinforced geopolymer binders
( Elsevier , 2022 , Article)This paper investigated the post-heating behavior of fly ash-based geopolymer binders reinforced with polypropylene (PP) microfibers. Geopolymer binders with different fiber contents including 0%, 0.05%, 0.1%, and 0.2% by ... -
Thermal characterization of phase change materials based on linear low-density polyethylene, paraffin wax and expanded graphite
( Elsevier Ltd , 2016 , Article)Thermal characterization of Phase Change Materials (PCMs) based on linear low-density polyethylene (LLDPE), paraffin wax (W) and expanded graphite (EG) is reported in this paper. Investigated PCMs showed high potential for ... -
Thermal characterization of polymer matrix composites containing microencapsulated paraffin in solid or liquid state
( Elsevier Ltd , 2014 , Article)This work focuses on the study of heat transfer mechanisms in composites materials which may be used for Latent Heat Thermal Energy Storage applications. These composites contain phase change material (PCM) which can absorb ... -
Thermal degradation of aqueous amine/amino acid solutions in the presence and absence of CO 2
( Institute of Physics Publishing , 2018 , Conference Paper)The stability to thermal degradation of aqueous solutions of methyldiethanolamine (MDEA) and their mixtures with glycine (Gly), in the absence and the presence of CO 2 , was investigated by Gas chromatography-flame ionization ... -
Thermal insitu analyses of multicomponent pyrophosphate cathodes materials
( Electrochemical Science Group , 2015 , Article)Development of secondary batteries based on abundant and inexpensive elements are vital. Amongvarious alternative choices, sodium-ion batteries (NIBs) are promising because of plentiful resourcesand low costs of sodium ... -
Thermal modeling and optimization of microalgal biomass production in the harsh desert conditions of State of Qatar
( Elsevier B.V. , 2019 , Article)Microalgal culture in solar conditions raises several challenges, especially in the harsh desert areas of the Middle East where microalgal culture is a valuable candidate for biomass production on non-arable land. Here we ... -
Thermal performance and kinetic analysis of vermicelli drying inside a greenhouse for sustainable development
( Elsevier Ltd , 2021 , Article)In this research paper, vermicelli samples of 3 mm, 2 mm, and 1.25 mm diameters have been dried inside an even span greenhouse (1.2 × 0.8 m2 effective floor area) under forced convection mode in the climatic conditions of ... -
Thermal properties measurement and heat storage analysis of paraffin/graphite composite phase change material
( Elsevier Ltd , 2014 , Article)This study aims at the preparation of a paraffin/graphite waste composite for thermal energy storage application at low temperature. In this composite material, the paraffin is characterized by high phase change latent ... -
Thermal properties of phase-change materials based on high-density polyethylene filled with micro-encapsulated paraffin wax for thermal energy storage
( Elsevier Ltd , 2015 , Article)Microcapsules consisting of paraffin wax cores with a melting point of approximately 42 °C and a melamine-formaldehyde resin shell were synthesized using in situ polymerization. These microcapsules have a uniform distribution ... -
Thermal properties of TiO 2 NP/CNT/LDPE hybrid nanocomposite films
( MDPI AG , 2018 , Article)This work aims to investigate the effect of hybrid filler concentration on the thermal stability of low-density polyethylene (LDPE) matrices. LDPE-based composite films were synthesized by melt mixing, followed by compression ... -
Thermal regulation of algae cultures in raceway ponds utilizing ground heat: Improving techno-economic feasibility and process sustainability of large-scale algae production in Qatar
( Elsevier , 2023 , Article)There is an increasing drive for developing sustainable alternatives for fuels, foods, feeds, and chemicals. Algae can play a significant role in this, however the commercialization of microalgal biomass is still limited ... -
Thermal, Electrical, and Sensing Properties of Recycled HDPE/Carbonaceous Industrial Waste Composites
( John Wiley and Sons Inc , 2021 , Article)This work is an endeavor to contemplate a value-added conductive plastic composite material derived as recycled plastic depending on polyethylene (PE)/carbon black (CB). We choose to add CB as a filler material to enhance ... -
Thermally conductive polyethylene/expanded graphite composites as heat transfer surface: Mechanical, thermo-physical and surface behavior
( MDPI AG , 2020 , Article)Composites of high-density polyethylene (HDPE) and expanded graphite (EG) are prepared for heat exchangers in multi-effect distillation (MED) desalination. At 50 wt.% EG loading, the thermal conductivity of HDPE was increased ... -
Thermo-osmosis-Coupled Thermally Regenerative Electrochemical Cycle for Efficient Lithium Extraction
( American Chemical Society , 2021 , Article)Lithium (Li) production based on the soda evaporation process is time-consuming and unsustainable. The emerging electrochemical Li extraction is time-efficient but requires high-concentration Li sources and significant ... -
Thermochemical splitting of CO2 using solution combustion synthesized LaMO3 (where, M = Co, Fe, Mn, Ni, Al, Cr, Sr)
( Elsevier B.V. , 2020 , Article)The effort of this paper was to recognize the inclusion of appropriate dopants that will upgrade the redox reactivity of La-based perovskites. By maintaining the fuel (glycine) to metal nitrate ratio () = 1, the LaMO3 ... -
Thermochemical treatment of fly ash for synthesis of mesoporous activated carbon
( Springer Netherlands , 2015 , Article)A mesoporous activated carbon is produced from oil fly ash (OFA) using chemical and thermal treatments at different activation conditions. The ash samples were refluxed with a range of compositions of sulfuric, nitric, and ...
