Browsing by Author "Nishad, Safna"
Now showing items 1-8 of 8
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Colloid retention and mobilization mechanisms under different physicochemical conditions in porous media: A micromodel study
Nishad, Safna; Al-Raoush, Riyadh I. ( Elsevier , 2021 , Article)Clear understanding of pore-scale mechanisms that control transport and retention of colloids in porous media at different physicochemical conditions is critical to improve design and efficient cleanup methodologies of ... -
Effect of using Cement Kiln Dust as a nano-material on the strength of cement mortars
Alnahhal, Wael; Taha, Ramzi; Al-Nasseri, Hammad; Nishad, Safna ( Springer Verlag , 2017 , Article)In this experimental study, the effects of using nano-sized Cement Kiln Dust (CKD) as a partial replacement for Ordinary Portland Cement (OPC) on the strength of cement mortars is investigated. The CKD was milled up to 4 ... -
Evaluation of photothermal conversion performance of shape-stabilized phase change materials using a heat flux evolution curve
Nishad, Safna; Mohammed, Himyan; Sobolciak, Patrik; Krupa, Igor ( Elsevier , 2023 , Article)Phase change materials are promising alternatives for solar energy harvesting by photothermal conversion and thermal energy storage. In this work, a shape-stabilized phase change material (PCM) was prepared by hot-melt ... -
Highly conductive phase change composites based on paraffin-infiltrated graphite panels for photo/electrothermal conversion and storage
Nishad, Safna; Kasak, Peter; Krupa, Igor ( Elsevier , 2023 , Article)The extensive utilization of phase change materials (PCMs) for thermal energy harvesting, storage, and thermal management is often constrained by their inadequate thermal and electrical conductivity, form instability, and ... -
Micromodel Study on Colloid Retention and Mobilization under different Geo-Chemical Conditions during Single and Two-Phase Flow
Nishad, Safna (2020 , Dissertation)Understanding the transport of colloids and colloid-facilitated transport of contaminants is essential for efficient cleanup and remediation processes. Various factors and mechanisms contributing to their retention in the ... -
Micromodel Study on Pore Scale Mechanisms Associated with Permeability Impairment in Porous Media
Nishad, Safna; Al-Raoush, Riyadh ( Qatar University Press , 2020 , Poster)Recently, researchers are attracted towards the gas production from hydrate bearing sediments considering its abundance in marine continental margins and persisting demand for alternate energy. Dissociation of hydrate into ... -
Recycling of Tetra Pak for Space and Water Heating by Blending with Phase Change Materials
Nishad, Safna; Krupa, Igor ( Qatar University Press , 2023 , Conference Paper)A rapid rise in demands for thermal comfort in the building sector necessitates higher energy consumption for air conditioning, ventilation, space, and water heating systems. Recently, phase change materials (PCMs) have ... -
Release of colloids in saturated porous media under transient hydro-chemical conditions: A pore-scale study
Nishad, Safna; Al-Raoush, Riyadh I.; Alazaiza, Motasem Y.D. ( Elsevier , 2021 , Article)The deposition and consequent release of colloids pose a significant challenge to the environment, groundwater quality and human health. Subsurface soil contains numerous types of colloids that exhibit a diverse range of ...