All Outputs (19)

The impact of gas flare on oil fields' enviornments (2017)
Presentation / Conference
Ogbonda, U., Ji, Y., Coates, S., & Bichard, E. (2017, October). The impact of gas flare on oil fields' enviornments. Presented at Academic 10th International Conference, Ottawa, Canada

Nigeria, Africa’s most populous nation and leading oil producer with the second-largest natural gas reserves in
sub-Saharan Africa, is faced with energy deficiency. Despite efforts to diversify, the economy remains heavily dependent on
oil accounti... Read More about The impact of gas flare on oil fields' enviornments.

Evaluation of the new Design Summer Year weather data using parametrical buildings (2017)
Presentation / Conference
Ji, Y., Korolija, I., & Zhang, Y. (2017, September). Evaluation of the new Design Summer Year weather data using parametrical buildings. Presented at International Research Conference 2017: Shaping Tomorrow’s Built Environment Conference Proceedings, Salford Quays, UK

The Charted Institution of Building Services Engineers (CIBSE) updated the near extreme weather (Design Summer Year – DSY) for all 14 locations in the UK in 2016. This new release attempts to address the underlying shortcomings of the previous defini... Read More about Evaluation of the new Design Summer Year weather data using parametrical buildings.

A critique of the ventilation system used for public schools around gas flaring sites in the Nigeria Niger Delta area (2017)
Presentation / Conference
Ogbonda, U., & Ji, Y. (2017, July). A critique of the ventilation system used for public schools around gas flaring sites in the Nigeria Niger Delta area. Presented at Healthy Buildings Europe 2017, Lublin, Poland

The consideration of ventilation requirements in school buildings has significantly become a critically important factor in the academic performance of pupils in schools. Their health, concentration and performance output have been linked to the amou... Read More about A critique of the ventilation system used for public schools around gas flaring sites in the Nigeria Niger Delta area.

Comparative thermal response of internally and externally insulated houses (2012)
Presentation / Conference
Ji, Y., & Webster, P. (2012, January). Comparative thermal response of internally and externally insulated houses. Presented at Retrofit 2012, The Lowry, Salford Quays, UK

When retrofitting older properties with solid outer walls additional insulation if required has to be added to the inner or outer surfaces of the outer wall. The choice and viability of either of these solutions is largely determined by cost, appeara... Read More about Comparative thermal response of internally and externally insulated houses.

The role of turbulent diffusion on thermal comfort in naturally ventilated buildings (2010)
Presentation / Conference
Kaye, N., Flynn, M., Cook, M., & Ji, Y. (2010, May). The role of turbulent diffusion on thermal comfort in naturally ventilated buildings. Presented at The Fifth International Symposium on Computational Wind Engineering (CWE2010), Chapel Hill, North Carolina, USA

In recent years there has been considerable effort to develop simple models for wind and buoyancy induced natural ventilation in buildings that can be used to improve existing building thermal simulation tools. These models have been successful at pr... Read More about The role of turbulent diffusion on thermal comfort in naturally ventilated buildings.

Human environmental heat transfer simulation with CFD – the advances and challenges (2009)
Presentation / Conference
Zhang, Y., Novieto, D., & Ji, Y. (2009, July). Human environmental heat transfer simulation with CFD – the advances and challenges. Presented at Eleventh International IBPSA Conference, Glasgow, Scotland

The modelling and prediction of human thermoregulatory responses and comfort have gone a long way during the past decades. Sophisticated and detailed human models, i.e. the active multi-nodal thermal models with physiological regulatory responses, ha... Read More about Human environmental heat transfer simulation with CFD – the advances and challenges.

Currnent and likely future performance of advanced natural ventilation (2009)
Presentation / Conference
Ji, Y., & Lomas, K. (2009, July). Currnent and likely future performance of advanced natural ventilation. Presented at Eleventh International IBPSA Conference, Glasgow, Scotland

Advanced natural ventilation (ANV), often characterised by the use of dedicated ventilation stacks, shafts and other architecture features such as atria, light wells, has gained popularity for natural ventilation design in recent decades. In this res... Read More about Currnent and likely future performance of advanced natural ventilation.

Hybrid ventilation for low energy building design in south China (2008)
Presentation / Conference
China. Presented at The First International Conference on Building Energy and Environment, Dalian, China

Buildings and their related activities are responsible for a large portion of the energy consumed in China. It is therefore worthwhile to improve the energy efficiency of buildings. This paper describes a low energy building design in Hangzhou, south... Read More about Hybrid ventilation for low energy building design in south China.

CFD modelling of double-skin facades with venetian blinds (2007)
Presentation / Conference
Ji, Y., Cook, M., Hanby, V., Infield, D., Loveday, D., & Mei, L. (2007, September). CFD modelling of double-skin facades with venetian blinds. Presented at The 10th International Building Performance Simulation Association (IBPSA) Conference and Exhibition, Beijing, China

This paper describes CFD modelling of Double Skin Façades (DSF) with venetian blinds inside the façade cavity. The 2-D modelling work investigates the coupled convective, conductive and radiative heat transfer through the DSF system. The angles of th... Read More about CFD modelling of double-skin facades with venetian blinds.

The influence of blinds on temperatures and air flows within ventilated double-skin façades (2007)
Presentation / Conference
Mei, L., Loveday, D., Infield, D., Hanby, V., Cook, M., Ji, Y., …Bates, J. (2007, June). The influence of blinds on temperatures and air flows within ventilated double-skin façades. Presented at Clima 2007 WellBeing Indoors, Helsinki, Finland

Ventilated façades have become an increasingly employed feature in the design of low energy buildings over recent years in that they offer the attractive features of a conventional glass façade but without the thermal disadvantages. These façades con... Read More about The influence of blinds on temperatures and air flows within ventilated double-skin façades.

Nodal network and CFD simulation of airflow and heat transfer in double skin facades with blinds (2006)
Presentation / Conference
Hanby, V., Cook, M., Infield, D., Ji, Y., Loveday, D., & Mei, L. (2006, December). Nodal network and CFD simulation of airflow and heat transfer in double skin facades with blinds. Presented at The 7th International Conference on System Simulation in Buildings, Liege, Belgium

The paper describes a modeling study of heat transfer and buoyancy-driven airflow in double skin facades consisting of a glass outer layer, a control device (venetian blind) and a double-glazed inner skin. The modeling study was based on two approach... Read More about Nodal network and CFD simulation of airflow and heat transfer in double skin facades with blinds.

Atrium-assisted natural ventilation of multi-storey buildings (2005)
Presentation / Conference
Ji, Y., & Cook, M. (2005, September). Atrium-assisted natural ventilation of multi-storey buildings. Presented at The 10th International Conference on Indoor Air Quality and Climate, Beijing, China

Buoyancy-driven displacement natural ventilation in a simple multi-storey building structure is investigated. The
storeys are connected to a common atrium and top-down-chimneys, and the internal heat gains of the storeys are
represented by localise... Read More about Atrium-assisted natural ventilation of multi-storey buildings.

CFD modelling of buoyancy-driven natural ventilation opposed by wind (2005)
Presentation / Conference
Cook, M., Ji, Y., & Hunt, G. (2005, August). CFD modelling of buoyancy-driven natural ventilation opposed by wind. Presented at The 9th International IBPSA Conference, Montreal, Canada

This paper presents CFD simulations of natural displacement ventilation airflows in which the buoyancy force produced by a heat source is opposed by a wind force. Cases investigated focus on windbuoyancy force relationships for which a two-layer stra... Read More about CFD modelling of buoyancy-driven natural ventilation opposed by wind.

CFD modelling of atrium-assisted natural ventilation (2004)
Presentation / Conference
Ji, Y., Cook, M., & Hunt, G. (2004, September). CFD modelling of atrium-assisted natural ventilation. Presented at The 9th International Conference on Air Distribution in Rooms, University of Coimbra, Portugal

Using computational fluid dynamics (CFD) techniques to model buoyancy-driven airflows has always proved challenging. This work investigates CFD modelling of buoyancy-driven natural ventilation flows in a single-storey space connected to an atrium. Th... Read More about CFD modelling of atrium-assisted natural ventilation.

An approach to "National Annex to ISO 19650 -2"
Presentation / Conference
Dadmehr, N., & Coates, S. An approach to "National Annex to ISO 19650 -2". Presented at 14th International Postgraduate Research Conference (IPGRC) 2019 : contemporary and future directions in the Built Environment, University of Salford

In the UK the objective of BIM mandate in 2011 was to develop a strategy for
introducing and implementing BIM Level 2. PAS 1192-2:2013 was published by BSI and
came into effect from February 2013, focused specifically on project delivery and provid... Read More about An approach to "National Annex to ISO 19650 -2".

Consultative approach to BIM implementation
Presentation / Conference
Dadmehr, N., & Coates, S. Consultative approach to BIM implementation. Presented at 14th International Postgraduate Research Conference (IPGRC) 2019 : contemporary and future directions in the Built Environment, University of Salford

Building Information Modeling is transforming AECOO industry, it introduces new
approaches and new technology as well as collaborative working environment amongst
different stakeholders. BIM requires new method of management adapted to the new conc... Read More about Consultative approach to BIM implementation.

Numerical studies on natural ventilation flow in an enclosure with both buoyancy and wind effects
Presentation / Conference
enclosure with both buoyancy and wind effects. Presented at The 2004 CIBSE National Conference: Delivering Sustainable Construction, London, UK

Computational Fluid Dynamics (CFD) is used to predict natural ventilation flows in an enclosure with upper and lower openings connected to the environment. The natural driving forces are wind combined with buoyancy. CFD simulations were carried out b... Read More about Numerical studies on natural ventilation flow in an enclosure with both buoyancy and wind effects.

CFD model-based natural ventilation control – the possibility, strategies, and potential
Presentation / Conference
Zhang, Y., & Ji, Y. CFD model-based natural ventilation control – the possibility, strategies, and potential. Presented at the 10th International Conference on Air Distribution in Rooms (Roomvent 2007), Helsinki, Finland

This paper investigates the potential of CFD-based control strategies. The simple model of an open-plan office is used to demonstrate the case for buoyancy combined wind-driven natural ventilation. Three control strategies are compared: a feed-forwar... Read More about CFD model-based natural ventilation control – the possibility, strategies, and potential.

Revaluating megaproject cost overruns : putting changes into perspective
Presentation / Conference
Walsh, A., & Walker, P. Revaluating megaproject cost overruns : putting changes into perspective. Presented at 14th International Postgraduate Research Conference (IPGRC) 2019 : contemporary and future directions in the Built Environment, University of Salford

The vast sums of money involved in megaprojects, and the perceived lack of public benefit, create controversy. Flyvberg’ s iron law asserts that megaprojects are over budget, over time, under benefits, over and over again (Flyvberg, 2018). More recen... Read More about Revaluating megaproject cost overruns : putting changes into perspective.