- Biodiesel Production and Applications
- Solar Thermal and Photovoltaic Systems
- Solar-Powered Water Purification Methods
- Advanced Combustion Engine Technologies
- Adsorption and Cooling Systems
- Lubricants and Their Additives
- Refrigeration and Air Conditioning Technologies
- Heat Transfer and Optimization
- Carbon Dioxide Capture Technologies
- Phase Change Materials Research
- Solar Radiation and Photovoltaics
- Thermochemical Biomass Conversion Processes
- Energy and Environment Impacts
- Catalytic Processes in Materials Science
- Thermodynamic and Exergetic Analyses of Power and Cooling Systems
- Nanofluid Flow and Heat Transfer
- Biofuel production and bioconversion
- Advanced Thermodynamic Systems and Engines
- Photovoltaic System Optimization Techniques
- Fuel Cells and Related Materials
- Catalysis and Hydrodesulfurization Studies
- Water-Energy-Food Nexus Studies
- Hybrid Renewable Energy Systems
- Building Energy and Comfort Optimization
- Membrane Separation and Gas Transport
Beaconhouse National University
2025
University of Engineering and Technology Lahore
2014-2024
Prince Mohammad bin Fahd University
2024
University of Science and Technology
2024
Korea University of Science and Technology
2024
Northern University of Malaysia
2023-2024
Kohat University of Science and Technology
2024
Heriot-Watt University
2015-2023
University of Haripur
2023
Albert Einstein College of Medicine
2021-2022
In this study, three different nanoparticles—SiO2, TiO2, and Al2O3—were employed to enhance the CO2 gas absorption by monoethanolamine (MEA) solvent. It is observed that, with increased solids loading, total mass-transfer enhancement has a tendency be dominated bubble breaking effect. concluded that nanoparticles result in an rate of >10%. On other hand, exhibit much more attractive impact on desorption. Under same desorption extent, solvent 0.1 wt % TiO2 saved 42% time, compared without...
The present investigation uses a blend of Nigella sativa biodiesel, diesel, n-butanol, and graphene oxide nanoparticles to enhance the performance, combustion symmetric characteristics reduce emissions from diesel engine modified common rail direct injection (CRDI). A toroidal-type chamber six-hole solenoid fuel injector were used in current investigation. research aimed study effect two additives, n-butanol synthesized asymmetric nanoparticles, improving properties biodiesel (NSME25)....
Rapid depletion in fossil fuels, inflation petroleum prices, and rising energy demand have forced towards alternative transport fuels. Among these diesel-ethanol diesel-biodiesel blends gain the most attention due to their quality characteristics environmentally friendly nature. The viscosity density of biodiesel are slightly higher than diesel, which is a significant barrier commercialization biodiesel. In this study, 30 different ternary was investigated at 15 °С 40 °С, respectively....
This research work focuses on investigating the lubricity and analyzing engine characteristics of diesel–biodiesel blends with fuel additives (titanium dioxide (TiO2) dimethyl carbonate (DMC)) their effect tribological properties a mineral lubricant. A blend palm–sesame oil was used to produce biodiesel using ultrasound-assisted transesterification. B30 (30% + 70% diesel) selected as base fuel. The in current study prepare ternary were TiO2 DMC. showed significant reduction 6.72% coefficient...
The demand for renewable energy sources is gradually escalating due to the spontaneously growing population and global economic development. access fossil fuels declining limited available reserves. Hence, resources, technology choice, policy are always being revised modernization of society. Meanwhile, liquid such as methyl ester from locally produced vegetable oils readily accepted by many countries globally, although it currently blended (up 20%) with diesel. Oxides nitrogen most...
Due to rapid industrialization and urbanization, upward rise in carbon emissions the atmosphere, depletion of fossil fuel gas reserves have forced find alternative renewable energy resources, where solar is one most promising source. Parabolic trough collectors (PTCs) can effectively transfer high temperature tube receiver upto 400 °C. In this study, Computational Fluid Dynamics (CFD) analysis used analyse effect multiple working fluids on efficiency PTC. Two different types nanofluids for...
Households in developing countries rely on traditional cooking methods despite low-efficiency and high risks of air pollution health. Various improved biomass cookstove technologies have been developed to address this issue, but there is still room for improvement technology. This research aims enhance the by investigating its performance under different inlet conditions using computational fluid dynamics analysis. The impact flow rate position secondary thermal efficiency examined. eddy...
This study focused on evaluating the lubricity of diesel–biodiesel fuel with oxygenated alcoholic and nano-particle additives. Fuel injection system lubrication depended primarily used in diesel engine. Palm–sesame oil blend was to produce biodiesel using ultrasound-assisted technique. B30 sample as a base blended additives different proportions prior tribological behavior analysis. The samples measured HFRR accordance standard method ASTM D6079. All tested fuels' Tribological examined...
In this investigation, biodiesel was produced from Moringa oleifera oil through a transesterification process at operating conditions including reaction temperature of 60 °C, catalyst concentration 1% wt., time 2 h, stirring speed 1000 rpm and methanol to ratio 8.50:1. Biodiesel blends, B10 B20, were tested in compression ignition engine, the performance emission characteristics analyzed compared with high-speed diesel. The engine operated full load speeds varying 2400 rpm. All exhaust...
Dilution of engine oil with unburned fuels alters its lubricity and tribological properties. In this research paper, SAE-40 lubricating samples were contaminated known percentages (5%) (diesel, palm-sesame biodiesel blend (B30), B30 + ethanol, dimethyl carbonate, carbon nanotubes and, titanium oxide). The effect all these on wear frictional characteristics was determined by using a 4-ball tribo tester types worn surfaces analyzed SEM. Lubricating diluted B10 (commercial diesel) showed...
Pakistan is facing a severe energy crisis due to its heavy dependency on the import of costly fossil fuels, which ultimately leads expansive electricity generation, low power supply, and interruptive load shedding. In this regard, utilization available renewable resources within country for production can lessen crisis. Livestock waste/manure considered most abundant material biogas generation. primarily an agricultural country, livestock widely kept by farming community, in order meet their...
Electronic devices are being used extensively for different applications, where the thermal management of these is still a critical challenge due to rapid miniaturization, high heat flux and constantly rising temperature. Phase change materials (PCMs) based adopted, but low conductivity limits their use in temperature-controlled electronic devices. Nano-enhanced phase (NePCMs) can advance transfer rate (HTr), decrease temperature, increase operating time device. The present study compares...
Thermally driven adsorption-based atmospheric water harvesting (AWH) is becoming an emerging technology to provide potable water. In this regard, various adsorbent materials including solid (MOFs, silica-gels, and zeolites), liquid (CaCl 2 LiCl), composite adsorbents are explored in the literature. This study reviews recent advancements based on their production capacity at different conditions that air temperature relative humidity (RH). The MOF of type MIL-101(Cr) shows 3.10 L/m /day RH...