Joseph joined UEL in 2010 after completing his PhD in the field of Design Engineering at the University of Salford, Manchester. He completed his undergraduate study at Liverpool John Moores University where he attained a BA(hons) in Product Design and Digital Modelling.

 Joseph is an active researcher in the fields of both medical and sustainable design, and has produced a range of journal and conference publications relating to his many studies.

• First year tutor
• Link tutor for local high schools
• Design for Manufacture - Module Leader
• Product Engineering Science - Module Leader

• Medical Design
• Design for Manufacture
• Sustainable Design

• Product Design (BSc (Hons))
• Product Design Futures (BA (Hons))

• ME1609
• ME1610
• ME2615
• ME3612

• Development of a Handheld Disinfection Device for the Prevention of Hospital Acquired Infection
• Sustainable Timber Design Utilising Waste Timber

1.       Stewart. J.A, Nasr. G.G. and Burby. M.L. - ‘Fine Spray for Disinfection Purposes within Healthcare Environments’ – ICLASS, Vail, Colorado, USA, 26-30 July, 2009.

 2.       Nasr. G.G and Stewart. J.A. - ‘Spray characterisation of Glycerine-Water Mixture, Using a Spill-Return Atomiser (SRA)’ – ICLASS, Vail, Colorado, USA, 26-30 July, 2009.

 3.       Stewart. J.A. and Nasr. G.G. – ‘Aerosol Design I’ – SRG confidential report, Unison Engine Components, 2009.

 4.       Stewart. J.A., Burby. M.L and Nasr. G.G. - ‘Aerosol Design II’ – SRG confidential report, Unison Engine Components, 2009.

 5.       Nasr. G.G., Burby. M.L. and Stewart. J.A. - ‘Novel SRA Design and Implementation’, Journal of IMechE, Engineering and Science: Part-C, 2010.

 6.       G.G.Nasr, A.J.Yule, J.A.Stewart, A. Whitehead, T. Hughes - ‘Fine Spray for Disinfection within Healthcare’, ILASS Americas, Cincinnati, Ohio, USA, 16-19 May, 2010.

 7.       Stewart. J.A, Nasr G.G. and Burby. M.L. – ‘Radial Analysis of Fine Sprays Using Phase Doppler Anemometry (PDA)’, ILASS Europe 2010, Brno, Czech Republic, 6-8 September, 2010.

 8.       Stewart. J.A, Nasr. G.G. and Burby. M.L. – ‘Fine Spray Behaviour upon Impaction of Varied Material Surfaces’, ILASS Americas, Ventura, California, USA,  15-18 May, 2011.

• Institute of Engineering Designers (IED) - Graduate Member
• Institute of Mechanical Engineers (IMechE) - Associate Member

Fine Spray Behaviour upon Impaction of Varied Material Surfaces

Abstract

A mobile fine spray unit, utilising a spill-return atomiser has been developed for the purpose of decontamination within healthcare environments. The unit must be able to spray uniformly onto any given surface, providing ‘mist like’ coverage. Any streaking patterns on the surface during or after spray application would jeopardise the efficiency of delivering the decontaminant. Thus it is pertinent to understand the behaviour of droplets impacting on various surfaces, and particularly the conditions that cause streaking.

     Within this investigation four sample surfaces; steel, acrylic, glass and laminated wood have been sprayed separately using the spill return device with a substitute MRSA disinfectant liquid.  Through experimentation the optimum spray input conditions for the atomiser: distance, time and pressure required to uniformly coat various surfaces without the occurrence of streaking have been obtained.

 Radial Analysis of Fine Sprays Using Phase Doppler Anemometry (PDA)

 Abstract

A mobile fine spray unit, utilising a Spill Return Atomiser (SRA) has been developed for the purpose of decontamination within healthcare environments. The unit must be able to spray uniformly onto any given    surface, providing ‘mist like’ coverage. Any uneven coating and would jeopardise the efficiency of delivering the decontaminant fluid. Thus it is pertinent to understand and analyse the characteristics of the spray at various radial and downstream locations within the full cone patternation produced by the SRA.  

     PDA equipment was used to record sauter mean diameter, droplet velocity and mass flux data at set radial points across the spray and at various distances downstream of the atomiser. The results provided a comprehensive analysis of the spray and were used to determine the most effective coating distance to achieve ‘mist like’ coverage for delivering a decontaminant fluid.

• www.ied.org.uk
• www.cse.salford.ac.uk/srg/