Imperial College London

Dr Andrew J Haslam

Faculty of EngineeringDepartment of Chemical Engineering

Research Fellow
 
 
 
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Contact

 

+44 (0)20 7594 5618a.haslam CV

 
 
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Location

 

C406Roderic Hill BuildingSouth Kensington Campus

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Summary

 

Publications

Publication Type
Year
to

72 results found

Jover JF, Mueller EA, Haslam AJ, Galindo A, Jackson G, Toulhoat H, Nieto-Draghi Cet al., 2015, Aspects of Asphaltene Aggregation Obtained from Coarse-Grained Molecular Modeling, ENERGY & FUELS, Vol: 29, Pages: 556-566, ISSN: 0887-0624

Journal article

Coletti F, Crittenden BD, Haslam AJ, Hewitt GF, Jackson G, Jimenez-Serratos G, Macchietto S, Matar OK, Müller EA, Sileri D, Yang Jet al., 2015, Modeling of Fouling from Molecular to Plant Scale, Crude Oil Fouling: Deposit Characterization, Measurements, and Modeling, Pages: 179-320, ISBN: 9780128012567

© 2015 Elsevier Inc. All rights reserved. Chapter 5 describes a multiscale approach to modeling of crude oil fouling focused on improving understanding from the molecular level to industrial-scale systems. At the molecular scale, modeling work allows the determination of key parameters, such as diffusion coefficients and fluid physical properties, which can be used in thermodynamic equations of state and detailed fluid-dynamic models to predict fouling deposition in simple flows. At large scale, advanced system models of refinery heat exchangers and heat exchanger networks incorporate the lessons learned from the smaller scale models and provide the ability to predict the future course of fouling. It is shown how these models can be used for accurately assessing operational costs due to fouling, assisting in heat exchanger design, and devising improved operating strategies that minimize costs.

Book chapter

Jimenez Serratos MG, Haslam AJ, Jackson G, Müller EAet al., 2014, 5. Modeling of Fouling from Molecular to Plant Scale5.2 Thermodynamic and Molecular Modeling, Crude Oil Fouling Deposit Characterization, Measurements, and Modeling, Editors: Coletti, Hewitt, Publisher: Gulf Professional Publishing, ISBN: 9780128013595

With production from unconventional rigs continuing to escalate and refineries grappling with the challenges of shale and heavier oil feedstocks, petroleum engineers and refinery managers must ensure that equipment used with today’s crude ...

Book chapter

Jimenez Serratos MG, Haslam AJ, Jackson G, Muller EAet al., 2014, 5. Modeling of Fouling from Molecular to Plant Scale5.2 Thermodynamic and Molecular Modeling, Crude Oil Fouling Deposit Characterization, Measurements, and Modeling, Editors: coletti, Hewitt, Publisher: Gulf Professional Publishing, ISBN: 9780128013595

With production from unconventional rigs continuing to escalate and refineries grappling with the challenges of shale and heavier oil feedstocks, petroleum engineers and refinery managers must ensure that equipment used with today’s crude ...

Book chapter

Oyewunmi OA, Taleb AI, Haslam AJ, Markides CNet al., 2014, An assessment of working-fluid mixtures using SAFT-VR Mie for use in organic Rankine cycle systems for waste-heat recovery, Computational Thermal Sciences, Vol: 6, Pages: 301-316, ISSN: 1940-2503

© 2014 by Begell House, Inc. Working-fluid mixtures offer an improved thermal match to heat source streams in organic Rankine cycles (ORCs) over pure (single) fluids. In the present work we investigate the selection of working-fluid mixtures and component mixing ratios for an ORC system from a thermodynamic and economic point of view. A mathematical model of a subcritical, nonregenerative ORC is constructed. We employ the SAFT-VR Mie equation of state, a state-of-the-art version of the statistical associating fluid theory (SAFT), to predict the thermodynamic state properties and phase behavior of the fluid mixtures. The effect of the working-fluid mixture selection on the efficiency and power output from the cycle is investigated, as is its effect on the sizes of the various components of the ORC engine. This is done in order to appreciate the role that the fluid mixtures have on the investment/capital costs attributed to the installation of such a unit, intended for waste-heat recovery and conversion to power. Results of an ORC using a binary decane–butane mixture as the working fluid demonstrate a significant improvement in the cost per unit power output compared to the two pure fluid components. Specifically, the added costs of the four main ORC system components (pump, expander, and two heat exchangers) were found to be as low as 120–130 £/kW, 20–30% lower compared to the pure fluids.

Journal article

Schreckenberg JMA, Dufal S, Haslam AJ, Adjiman CS, Jackson G, Galindo Aet al., 2014, Modelling of the thermodynamic and solvation properties of electrolyte solutions with the statistical associating fluid theory for potentials of variable range, Molecular Physics, Vol: 112, Pages: 2339-2364

Journal article

Forte E, Haslam AJ, Jackson G, Mueller EAet al., 2014, Effective coarse-grained solid-fluid potentials and their application to model adsorption of fluids on heterogeneous surfaces, PHYSICAL CHEMISTRY CHEMICAL PHYSICS, Vol: 16, Pages: 19165-19180, ISSN: 1463-9076

Journal article

Horton RM, Haslam AJ, Galindo A, Jackson G, Finnis MWet al., 2013, New methods for calculating the free energy of charged defects in solid electrolytes, JOURNAL OF PHYSICS-CONDENSED MATTER, Vol: 25, ISSN: 0953-8984

Journal article

Dominguez H, Haslam AJ, Jackson G, Mueller EAet al., 2013, Modelling and understanding of the vapour-liquid and liquid-liquid interfacial properties for the binary mixture of n-heptane and perfluoro-n-hexane, JOURNAL OF MOLECULAR LIQUIDS, Vol: 185, Pages: 36-43, ISSN: 0167-7322

Journal article

Oyewunmi OA, Taleb A, Haslam A, Markides Cet al., 2013, An assessment of working-fluid mixtures in organic Rankine cycles for waste-heat recovery using SAFT-VR., 2nd International Seminar on ORC Power Systems (ASME ORC 2013)

Conference paper

Jover J, Haslam AJ, Galindo A, Jackson G, Mueller EAet al., 2012, Pseudo hard-sphere potential for use in continuous molecular-dynamics simulation of spherical and chain molecules, JOURNAL OF CHEMICAL PHYSICS, Vol: 137, ISSN: 0021-9606

Journal article

Franco-Melgar M, Haslam AJ, Jackson G, 2012, A generalisation of the Onsager trial function approach: Describing nematic liquid crystals with an algebraic equation of state (vol 106, pg 649, 2008), MOLECULAR PHYSICS, Vol: 110, Pages: 3107-3107, ISSN: 0026-8976

Journal article

Dufal S, Galindo A, Jackson G, Haslam AJet al., 2012, Modelling the effect of methanol, glycol inhibitors and electrolytes on the equilibrium stability of hydrates with the SAFT-VR approach, MOLECULAR PHYSICS, Vol: 110, Pages: 1223-1240, ISSN: 0026-8976

Journal article

Artola P-A, Pereira FE, Adjiman CS, Galindo A, Muller EA, Jackson G, Haslam AJet al., 2011, Understanding the fluid phase behaviour of crude oil: Asphaltene precipitation, FLUID PHASE EQUILIBRIA, Vol: 306, Pages: 129-136, ISSN: 0378-3812

Journal article

Brumby PE, Haslam AJ, de Miguel E, Jackson Get al., 2011, Subtleties in the calculation of the pressure and pressure tensor of anisotropic particles from volume-perturbation methods and the apparent asymmetry of the compressive and expansive contributions, MOLECULAR PHYSICS, Vol: 109, Pages: 169-189, ISSN: 0026-8976

Journal article

Haslam AJ, Galindo A, Jackson G, 2008, Predicting binary interaction parameters for use in modelling fluid mixtures, AIChE Annual Meeting, Conference Proceedings

Journal article

Lo BP, Haslam AJ, Adjiman CS, 2008, An algorithm for the estimation of parameters in models with stochastic differential equations, CHEMICAL ENGINEERING SCIENCE, Vol: 63, Pages: 4820-4833, ISSN: 0009-2509

Journal article

Haslam AJ, Galindo A, Jackson G, 2008, Prediction of binary intermolecular potential parameters for use in modelling fluid mixtures, FLUID PHASE EQUILIBRIA, Vol: 266, Pages: 105-128, ISSN: 0378-3812

Journal article

Franco-Melgar M, Haslam AJ, Jackson G, 2008, A generalisation of the Onsager trial-function approach: describing nematic liquid crystals with an algebraic equation of state, MOLECULAR PHYSICS, Vol: 106, Pages: 649-678, ISSN: 0026-8976

Journal article

Pereira Lo B, Haslam AJ, Adjiman CS, 2006, Chapter 1 Parameter estimation for stochastic differential equations: algorithm and application to polymer melt rheology, Computer Aided Chemical Engineering, Vol: 21, Pages: 143-148, ISSN: 1570-7946

A parameter estimation algorithm for stochastic differential equation (SDE) systems is proposed. The problem is formulated using the maximum likelihood (MLE) objective function, and a modified Levenberg-Marquardt (LM) algorithm is developed for its solution. Stochastic sensitivity equations are derived and used in order to obtain reliable parameter estimates. Computational efficiency is addressed by varying the simulation size according to the proximity of the current iterate to the optimal solution, as indicated by the magnitude of the trust-region radius. To evaluate the confidence intervals of the parameters, a global uncertainty analysis is proposed, which is based on sampling and accounts for experimental uncertainty and model noise. The algorithm is applied to a stochastic model of polymer rheology. © 2006 Elsevier B.V. All rights reserved.

Journal article

Clark GNI, Haslam AJ, Galindo A, Jackson Get al., 2006, Developing optimal Wertheim-like models of water for use in Statistical Associating Fluid Theory (SAFT) and related approaches, MOLECULAR PHYSICS, Vol: 104, Pages: 3561-3581, ISSN: 0026-8976

Journal article

Haslam AJ, von Solms N, Adjiman CS, Galindo A, Jackson G, Paricaud P, Michelsen ML, Kontogeorgis GMet al., 2006, Predicting enhanced absorption of light gases in polyethylene using simplified PC-SAFT and SAFT-VR, FLUID PHASE EQUILIBRIA, Vol: 243, Pages: 74-91, ISSN: 0378-3812

Journal article

Lo BP, Haslam AJ, Adjiman CS, Laso Met al., 2006, Chapter 3 A method for the systematic estimation of parameters for a stochastic reptation model, Vol: 22, Pages: 69-83, ISSN: 1570-7946

A parameter estimation algorithm for the thermodynamically consistent reptation model (Öttinger, 1999; Fang et al., 2000), which is based on stochastic differential equations, is proposed. The problem is formulated using the maximum likelihood (MLE) objective function, and a modified Levenberg-Marquardt algorithm is developed for its solution. Stochastic sensitivity equations are derived and used in order to obtain reliable parameter estimates. The issue of computational efficiency is addressed by varying the number of ensembles used in the integration of model based on the proximity of the current iterate to the optimal solution, as quantified by the magnitude of the trust region radius. The algorithm is applied to data for a sample of LDPE, to estimate mesoscale polymer properties from measurements of shear viscosity. © 2006 Elsevier B.V. All rights reserved.

Journal article

Haslam AJ, Moen Ø, Adjiman CS, Galindo A, Jacksona Get al., 2006, Chapter 5 Design of polyolefin reactor mixtures, Vol: 22, Pages: 301-332, ISSN: 1570-7946

Journal article

Lo BP, Haslam AJ, Adjiman CS, 2006, A method for the systematic estimation of parameters for a stochastic reptation model, Computer-Aided Chemical Engineering; Multiscale Modelling of Polymer Properties, Editors: Laso, Perpète, Amsterdam, Publisher: Elsevier, Pages: 69-84, ISBN: 978-0-444-52187-3

Book chapter

Pereira Lo B, Haslam AJ, Adjiman CS, 2006, Parameter estimation for stochastic differential equations: algorithm and application to polymer melt rheology, 16th European Symposium on Computer-Aided Process Engineering

Conference paper

Haslam AJ, Moen Ø, Adjiman CS, Galindo A, Jackson Get al., 2006, Design of polyolefin reactor mixtures, Computer Aided Chemical Engineering; Multiscale Modelling of Polymer Properties, Editors: Laso, Perpète, Amsterdam, Publisher: Elsevier, Pages: 301-332, ISBN: 978-0-444-52187-3

Book chapter

Lo BP, Haslam AJ, Adjiman CSJ, 2005, Parameter estimation for stochastic differential models: Application to a model of polymer rheology, AIChE Annual Meeting, Conference Proceedings

Journal article

Haslam AJ, Yamakov V, Moldovan D, Wolf D, Phillpot SR, Gleiter Het al., 2004, Effects of grain growth on grain-boundary diffusion creep by molecular-dynamics simulation, ACTA MATERIALIA, Vol: 52, Pages: 1971-1987, ISSN: 1359-6454

Journal article

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