Browsing by Title
Now showing items 25641-25660 of 51066
-
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 performance of stadium's Field of Play in hot climates
( Elsevier Ltd , 2017 , Article)The stadium Field of Play (FoP) is a large area of grass that affects the stadiums overall thermal performance. This paper experimentally and numerically investigates the thermal performance of stadiums FoP in hot and arid ... -
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 smart microencapsulated paraffin/plaster composites for the thermal regulation of buildings
( Elsevier Ltd , 2015 , Article)Smart plaster composites were manufactured by mixing plaster with different amounts of Micronal? DS5001X microcapsules containing a paraffin mixture with a melting point of 26 �C to develop new construction materials with ... -
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 stability and frequency-dependent electrical conductivity of poly(aniline-co-m-nitroaniline)
( Institute for Ionics , 2019 , Article)Herein, we report the frequency-dependent AC conductivity of poly(aniline-co-m-nitroaniline)s which were synthesized by chemical oxidation of aniline and m-nitroaniline using ammonium persulfate as an oxidizing agent by ... -
Thermal Stability of 0.9% Sodium Chloride IV Fluid exposed to Short- and Long-Term Extreme Conditions
( Qatar University Press , 2020 , Poster)Purpose: 0.9% sodium chloride IV fluid (normal saline) is critical in a clinical setting and may save lives. Data on thermal stability of normal saline, in out-of-hospital settings, are lacking. The purpose of this study ... -
Thermal Stabilization and Mechanical Properties of Nanocrystalline Al and Al-Li Alloys
(2016 , Master Thesis)Aluminum alloys in the conventional grain size state have had their share of research and are implemented in a variety of applications in our everyday life such as being the main structural materials in automobiles, ... -
Thermal Structural Optimization of IC Engine Piston
( International Journal of Mechanical Engineering and Robotics Research , 2021 , Article)The primary purpose of this work is to investigate the effect of the piston crown and piston boss thicknesses on the stresses generated on the piston. A 150-cc piston, made from A4032 Aluminum, of type “Bajaj,” was considered ... -
Thermal vibration of two-dimensional functionally graded (2D-FG) porous Timoshenko nanobeams
( Techno Press , 2017 , Article)The thermo-mechanical vibration behavior of two dimensional functionally graded (2D-FG) porous nanobeam is reported in this paper. The material properties of the nanobeam are variable along thickness and length of the ... -
Thermal, electrical, and sensing properties of composite material from environmental and industrial wastage
( Qatar University Press , 2020 , Poster)This work is an endeavour to contemplate a valueadded conductive plastic composite material derived as recycled plastic depending on Polyethylene (PP)/carbon black. We choose to add Carbon black (CB) as a filler material ... -
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 ... -
Thermalization times of positrons in molecular gases
(2000 , Article)The time that a particle takes to reach thermal equilibrium in gas is a gross measure of the efficiency with which such particle can exchange its kinetic energy with the medium. The time taken for positrons to reach thermal ... -
Thermally assisted efficient electrochemical lithium extraction from simulated seawater
( Elsevier , 2022 , Article)Extracting lithium electrochemically from seawater has the potential to resolve any future lithium shortage. However, electrochemical extraction only functions efficiently in high lithium concentration solutions. Herein, ... -
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 elastic analysis of functionally graded rotating disks with temperature-dependent material properties: uniform and variable thickness
( Springer Science+Business Media, B.V. , 2009 , Article)A thermo elastic analysis is presented for axisymmetric rotating disks made of functionally graded material (FGM) with variable thickness. Material properties are assumed to be temperature-dependent and graded in the radial ... -
Thermo-economic assessment of forward osmosis as pretreatment to boost the performance and sustainability of multi-effect distillation for seawater desalination
( Elsevier , 2022 , Article)This work presents the thermodynamic and techno-economic assessment of a forward osmosis – multi-effect distillation (FO-MED) system able to improve the thermal performance of the MED seawater desalination process and ...