Mechanical & Industrial Engineering: المرسلات الحديثة
السجلات المعروضة 181 -- 200 من 1396
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The effect of graphene on the activation energy of grain growth for the nanocrystalline thermoelectric n-type Bi2Te2.7Se0.3
( Springer Nature , 2022 , Article)Even though bismuth telluride is frequently produced by mechanical alloying for thermoelectric materials, no data has been published addressing the thermal behavior and activation energy of the milled n-type Bi2Te2.7Se0.3 ... -
Numerical evaluation of the thermal performance of a near-surface earth-to-air heat exchanger with short-grass ground cover: A parametric study
( Elsevier , 2021 , Article)High energy consumption and increasing energy cost have encouraged investment in energy efficiency. In hot areas, like the Middle East, the share of space cooling accounts for most of the total energy use in buildings. ... -
Effect of individually controlled personalized ventilation on cross-contamination due to respiratory activities
( Elsevier , 2021 , Article)While personalized ventilation (PV) has been integrated to enhance inhaled air quality, some studies showed that it can contribute to contaminants' transport indoors. This work investigates the effect of the individual ... -
Analysis and optimization of concentrated solar power plant for application in arid climate
( John Wiley and Sons Ltd , 2021 , Article)In this research study, the concentrated solar power (CSP) technology is reviewed for designing and optimizing a CSP tower plant for arid climate regions such as Qatar. A database for all CSP projects around the world is ... -
In-plane stress analysis of multiple parallel cracks in an orthotropic FGM medium under time-harmonic loading
( Elsevier , 2021 , Article)This study aimed to investigate the fracture behavior of a cracked orthotropic FGM medium when exposed to an in-plane harmonic load. The mechanical feature of the medium exponentially varied along the y-axis. Using the ... -
The effect of sizing optimization on the interface between high strength steel and fiber reinforced composite
( Elsevier , 2021 , Article)This paper aims to examine fiber type and fiber orientation’s effects on the interface bonding between steel and fiber-reinforced composites. To this end, fracture loads for modes I and II were experimentally determined. ... -
Economical study by determining the optimum thickness of insulation of some heaters utilized in Qatar refinery
( International Information and Engineering Technology Association , 2008 , Article)Some furnaces and heaters utilized in the industry in Qatar (such as Qatar Refinery) are analyzed economically by the determination of the optimum thickness of insulation for each of these equipments. Different common ... -
Heat transfer analysis of regenerative thermo-mechanical refrigeration system
( American Society of Mechanical Engineers (ASME) , 2020 , Conference Paper)Refrigeration systems contribute to the critical environmental concerns including global warming and ozone depletion. It is necessary to develop new systems that use renewable energy resources and waste heat to perform the ... -
Corrigendum to “Optimal utilization of geothermal heat from abandoned oil wells for power generation”. [Appl. Thermal Eng. 153 (2019) 536–542]
( Elsevier , 2020 , Article)The authors regret that the below acknowledgement was missing in the submission. The authors would like to apologise for any inconvenience caused. -
EXPERIMENTAL INVESTIGATION AND HEAT TRANSFER ANALYSIS OF INNOVATIVE THERMAL MECHANICAL REFRIGERATION SYSTEM COMPARED TO ELECTRIC COMPRESSOR
( American Society of Mechanical Engineers (ASME) , 2022 , Conference Paper)The current electric refrigeration and air condition systems are major causes for ozone depletion and global warming. These systems consume large percent of the worldwide gross production of electricity (around 17%). ... -
A novel technique for extraction of geothermal energy from abandoned oil wells
(2012 , Conference Paper)This paper investigates the possibility of design and construction of a geothermal heat exchanger suitable for installation in abandoned oil wells. Based on the in-situ data collected, an amenable heat transfer numerical ... -
Geothermal energy extraction from decommissioned petroleum wells
( International Society for Rock Mechanics , 2014 , Conference Paper)Abandoned wells impose enduring liabilities to petroleum companies and/or governments. However, the depth and abundance of abandoned petroleum wells make them an economically attractive source of geothermal energy. Geothermal ... -
Potential of geothermal energy for electricity generation in Qatar
( Canadian Institute of Mining, Metallurgy and Petroleum , 2013 , Conference Paper)There is general acceptance that climate change, which is the most important challenge facing humanity, is anthropogenic and attributed to fossil fuel consumption. Therefore, improving the performance of our existing energy ... -
Soil-concrete interface properties subjected to temperature changes and cycles using direct shear tests
( American Society of Civil Engineers Library (ASCE Library) , 2017 , Conference Paper)Geothermal foundations (energy piles) combine the structural function of deep foundations with the ground source heat exchangers to transfer geothermal energy to superstructures. The intermittent operation of the geothermal ... -
An optimized CT-dense agent perfusion and micro-CT imaging protocol for chick embryo developmental stages.
( BMC , 2024 , Article)Compared to classical techniques of morphological analysis, micro-CT (μ-CT) has become an effective approach allowing rapid screening of morphological changes. In the present work, we aimed to provide an optimized micro-CT ... -
Recycling low grade waste heat to electricity
( Canadian Institute of Mining, Metallurgy and Petroleum , 2013 , Conference Paper)Most mining and metallurgical industries produce relatively large quantities of low grade waste heat which they vent, for the most part, to the environment. To date, little is being done to recover some of this heat and ... -
A Path towards Timely VAP Diagnosis: Proof-of-Concept Study on Pyocyanin Sensing with Cu-Mg Doped Graphene Oxide
( Multidisciplinary Digital Publishing Institute (MDPI) , 2024 , Article)In response to the urgent requirement for rapid, precise, and cost-effective detection in intensive care units (ICUs) for ventilated patients, as well as the need to overcome the limitations of traditional detection methods, ... -
Combined effect of global warming and buildings envelope on the performance of ground source heat pump systems
( Springer Link , 2014 , Book chapter)Heating and cooling systems as well as domestic hot water account for over 50 % of the world’s energy consumption. Due to their high thermal performance, ground source heat pump systems (GSHP) have been increasingly used ... -
Numerical study of magneto-fluid-mechanic combined free-and-forced convection heat transfer
( Elsevier , 1998 , Article)Fully-developed, laminar, steady, free-and-forced convection heat transfer in an electrically-conducting fluid flowing in an electrically-insulated, horizontal, circular pipe (with its wall subjected to a uniform heat flux) ... -
Determination and selecting the optimum thickness of insulation for buildings in hot countries by accounting for solar radiation
( Elsevier , 2004 , Article)Determination and selecting the optimum thickness of insulation is the prime interest of many engineering applications. One of those applications is insulating buildings with an appropriate insulation. Calculations have ...
