Muhammad Saad Khan

King Fahd University of Petroleum and Minerals

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Bhajan Lal

Universiti Teknologi Petronas

Mohammad Azizur Rahman

Texas A&M University at Qatar

Ibrahim Hassan

Texas A&M University at Qatar

Iqbal Ahmed

King Abdulaziz University

Abinash Barooah

Texas A&M University

Cornelius B. Bavoh

Universiti Teknologi Petronas

Azmi Mohd Shariff

Universiti Teknologi Petronas

Sina Rezaei Gomari

Teesside University

Ahmad K. Sleiti

Qatar University

Muhammad Masood Rafi

NED University of Engineering and Technology

Cooperative Institutions

Universiti Teknologi Petronas

Petronas (Malaysia)

COMSATS University Islamabad

University of Veterinary and Animal Sciences

Texas A&M University at Qatar

King Abdulaziz University

Riphah International University

NED University of Engineering and Technology

Sultan Qaboos University

Abdul Wali Khan University Mardan

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A perspective on dual purpose gas hydrate and corrosion inhibitors for flow assurance

Journal of Petroleum Science and Engineering (2019)

Ali Qasim Muhammad Saad Khan Bhajan Lal Azmi Mohd Shariff

Flow Assurance

Clathrate hydrate

Subsea

Corrosion inhibitor

10.1016/j.petrol.2019.106418

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Citations (98)

Sustaining Low-Carbon Emission Development: An Energy Efficient Transportation Plan for CPEC

Journal of Information Processing Systems (2018)

Asma Zubedi Jianqiu Zeng Qasim Ali Arain Imran Memon Sehrish Khan

Climate change has become a major challenge for sustainable development of human society. This study is an attempt to analyze existing literature to identify economic indicators that hamper the process of global warming. This paper includes case studies based on various countries to examine the nexus for environment and its relationship with Foreign Direct Investment, transportation, economic growth and energy consumption. Furthermore, the observations are analyzed from the perspective of China-Pakistan Economic Corridor (CPEC) and probable impact on carbon emission of Pakistan. A major portion of CPEC investment is allocated for transportation. However, it is evident that transportation sector is substantial emitter of carbon dioxide (CO2) gas. Unfortunately, there is no empirical work on the subject of CPEC and carbon emission for vehicular transportation. This paper infers that empirical results from various other countries are ambiguous and inconclusive. Moreover, the evidence for the pollution haven hypothesis and the halo effect hypothesis is limited in general and inapplicable for CPEC in particular. The major contribution of this study is the proposal of an energy efficient transportation model for reducing CO2 emission. In the end, the paper suggests strategies to climate researchers and policymakers for adaptation and mitigation of greenhouse gases (GHG).

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Citations (16)

Prevalence of Flat Feet among School Children

Indian Journal of Physiotherapy and Occupational Therapy - An International Journal (2019)

Saffa Ibrahim Muhammad Saad Khan Muhammad Asif Fouzia Hussain

10.5958/0973-5674.2019.00120.5

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Citations (4)

Experimental and comparative theoretical study of thermal conductivity of MWCNTs-kapok seed oil-based nanofluid

International Communications in Heat and Mass Transfer (2019)

Ahmad Mukhtar Sidra Saqib Fatma Safdar Ayesha Hameed Sikander Rafiq

Dimensionless quantity

Experimental data

10.1016/j.icheatmasstransfer.2019.104402

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Citations (16)

CCDC 245302: Experimental Crystal Structure Determination

The Cambridge Structural Database (2004)

Muhammad Saad Khan Ruqaya S. Al-Naamani B. Ahrens Paul R. Raithby

An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.

10.5517/cc877zp

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Characterization of 3D microstructure, thermal conductivity, and heat flow of cement-based foam using imaging technique

Frontiers of Structural and Civil Engineering (2021)

Farnaz Batool Muhammad Saad Khan Vivek Bindiganavile

Characterization

10.1007/s11709-021-0709-9

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Citations (8)

Experimental investigation on synthesis, characterization, stability, thermo-physical properties and rheological behavior of MWCNTs-kapok seed oil based nanofluid

Journal of Molecular Liquids (2019)

Ayesha Hameed Ahmad Mukhtar Umar Shafiq Masooma Qizilbash Muhammad Saad Khan

Shear thinning

Thermal Stability

10.1016/j.molliq.2019.01.012

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Citations (57)

A Validated Computation Fluid Dynamics Model Investigating Cuttings Transport With Herschel Bulkley Drilling Fluids

Volume 10: Petroleum Technology (2022)

Mohamed Shafik Khaled Muhammad Saad Khan Mohammad Azizur Rahman A. Rashid Hasan

Abstract A fundamental understanding of the impact of different hydrodynamic, scaling, and geometric conditions on cuttings transport are essential for successful wellbore drilling. This study presents a validated computational fluid dynamics (CFD) model for investigating cuttings transport phenomena in deviated wells with Herschel Bulkley drilling fluids at different drilling conditions. A CFD model was developed and validated with our experiments conducted in the TAMUQ flow loop (5-meter horizontal length, 4.5in. × 2in.) and open literature. The Eulerian-Eulerian approach simulated solid-liquid laminar and turbulent flow in annular geometry utilizing hexahedral mesh under transient conditions. It was observed that the optimum range for efficient hole cleaning is from 0–200 RPM, and increasing RPM above 200 will have a marginal impact on improving hole cleaning. Cuttings size of 0.004 m was determined to be the critical size for solid particle removal. Hole enlargement has a hugely adverse effect on the fluid-carrying capacity due to the reduction of fluid velocity in the enlarged section and cuttings concentrate. Poor hole cleaning signs were observed with increasing cuttings density and wellbore inclination between 45–60 degrees.

Drill cuttings

Herschel–Bulkley fluid

10.1115/omae2022-79540

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Citations (2)

Comparison of Seismic Performance of Adobe Structures Strengthened with Two Different Schemes

Journal of Earthquake Engineering (2024)

Muhammad Masood Rafi Muhammad Saad Khan

This paper presents the results of an investigation of dynamic behaviours of strengthened adobe structures. These structures were strengthened using two different schemes which were inexpensive and simple to apply. The dynamic testing was carried out on a shaking table which applied the loading corresponding to the 1995 Kobe earthquake record sequentially in increments of 25%. The structural damage to a model was divided into different damage grades using a quantitative measure of vulnerability. Although some differences were observed in the stiffness of the models in their undamaged state, the stiffness of both of them became similar in the damaged state. The changes in the fundamental frequency of the structure corresponded to the changes in the stiffness. The difference in the base shear demand of both models did not exceed more than 15%. The hysteresis loops of the tested structures turned non-symmetric at a peak ground acceleration of nearly 1.10 g. The models exhibited higher lateral load capacities in one direction of loading as compared to the other direction. The ductility and energy dissipation were also higher in one direction of loading. The performance of the tested structures was categorised into four performance levels and the data of drift, ductility, damping and period corresponding to each level have been reported.

Adobe

10.1080/13632469.2024.2354862

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Smart Electricity Demand Side Controller

Rafidah Hasan Y. Tanveer M.M. Aman Waqar Qureshi Muhammad Saad Khan

Electricity generation is one of the major contributors in the emissions of Green house gases and is also responsible for the associated climate change challenges of this globe. Moreover, the energy sector is faced with the challenge of widening gap between electricity demand and supply, while generation of energy would increase the tariff and would also add to environment contamination. It is vital to reduce the greenhouse gases emission share of electricity generation. Demand Side Management (DSM) is one of the effective solutions for overcoming environmental challenges. In this paper, a smart Demand Side Controller (DSC) conceptual design is proposed for peak shifting of electrical load ripples to off peak hours. Operation of DSC is explained with block diagrams along with economical and ecological considerations. This technique would allow consumers to operate their high priority loads even in peak hours and would help the utility company to minimize their losses at the same time. This smart DSC includes digital meters that can be further modified to integrate smart meters in DSC. The idea is to achieve better load management and utilization of electricity but also play a significant role in the realization of the green concept of world.

Mains electricity

Demand side

Peak demand

Load management

10.1049/cp.2014.1452

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Citations (2)