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All Outputs (58)

Design performance specification for school buildings in the vicinity of gas flaring in the Niger Delta area of Nigeria (2018)
Thesis
Ogbonda, U. (in press). Design performance specification for school buildings in the vicinity of gas flaring in the Niger Delta area of Nigeria. (Thesis). University of Salford

It is evident from research that there is a strong link between poor indoor environments, external façade of school buildings, schoolchildren’s health and academic performance. In order to provide a better indoor environment for schoolchildren, meeti... Read More about Design performance specification for school buildings in the vicinity of gas flaring in the Niger Delta area of Nigeria.

Adaptive thermal comfort evaluation of typical public primary school classrooms in Imo state, Nigeria (2018)
Journal Article
Munonye, C., & Ji, Y. (2018). Adaptive thermal comfort evaluation of typical public primary school classrooms in Imo state, Nigeria

Climate change is causing high-temperature increase, which is affecting people’s health especially the vulnerable group such as children. Literature reviews revealed various complaints about health issues caused by heat stress as they relate to this... Read More about Adaptive thermal comfort evaluation of typical public primary school classrooms in Imo state, Nigeria.

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.

The effect of gas flare on the health of schoolchildren in the Niger delta area of Nigeria (2017)
Journal Article
Ogbonda, U., & Ji, Y. (2017). The effect of gas flare on the health of schoolchildren in the Niger delta area of Nigeria. International journal of humanities and social science research (Delhi), 3, 10-15

The proximity of schools to gas flaring sites and the use of simple ventilation systems in school buildings with currently no regulation or laid down blueprint during design and construction in an environment prone to adverse environmental hazards ca... Read More about The effect of gas flare on the health of schoolchildren in the Niger delta area of Nigeria.

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.

Domestic building fabric performance : closing the gap between the in situ measured and modelled performance (2017)
Journal Article
Marshall, A., Fitton, R., Swan, W., Farmer, D., Johnston, D., Benjaber, M., & Ji, Y. (2017). Domestic building fabric performance : closing the gap between the in situ measured and modelled performance. Energy and Buildings, 150, 307-317. https://doi.org/10.1016/j.enbuild.2017.06.028

There is a growing body of evidence available to indicate that there is often a discrepancy between the in situ measured thermal performance of a building fabric and the steady-state predicted performance of that fabric, even when the building fabric... Read More about Domestic building fabric performance : closing the gap between the in situ measured and modelled performance.

Thermal responses of single zone offices on existing near-extreme summer weather data (2017)
Journal Article
Ji, Y., Korolija, I., & Zhang, Y. (2018). Thermal responses of single zone offices on existing near-extreme summer weather data. Building Simulation, 11(1), 15-35. https://doi.org/10.1007/s12273-017-0367-y

There have been a number of attempts in the past to define “near extreme” weather for facilitating overheating analysis in free running buildings. The most recently efforts include CIBSE latest release of Design Summer Year (DSY) weather using multip... Read More about Thermal responses of single zone offices on existing near-extreme summer weather data.

Design summer year weather - outdoor warmth ranking metrics and their numerical verification (2016)
Journal Article
Ji, Y., Zhang, Y., Korolija, I., & Futcher, J. (2016). Design summer year weather - outdoor warmth ranking metrics and their numerical verification. Building Services Engineering Research and Technology, 37(6), 639-663. https://doi.org/10.1177/0143624416648179

The existing methods of selecting design summer year weather data rely on the outdoor dry bulb temperature without considering solar radiation and wind which can impact on indoor thermal conditions. This research sets out to examine the existing out... Read More about Design summer year weather - outdoor warmth ranking metrics and their numerical verification.

Assessing overheating of the UK existing dwellings – a case study of replica Victorian end terrace house (2014)
Journal Article
Ji, Y., Fitton, R., Swan, W., & Webster, P. (2014). Assessing overheating of the UK existing dwellings – a case study of replica Victorian end terrace house. Building and Environment, 77, 1-11. https://doi.org/10.1016/j.buildenv.2014.03.012

This paper aims to investigate the likely thermal performance of a unique pre-1919 Victorian case study property by using both current and future projected weather data after a deep retrofit. The property is a re-construction within an environmental... Read More about Assessing overheating of the UK existing dwellings – a case study of replica Victorian end terrace house.

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.

The role of diffusion on the interface thickness in a ventilated filling box (2010)
Journal Article
Kaye, N., Flynn, M., Cook, M., & Ji, Y. (2010). The role of diffusion on the interface thickness in a ventilated filling box. Journal of Fluid Mechanics, 652, 195-205. https://doi.org/10.1017/S0022112010000881

We examine the role of diffusivity, whether molecular or turbulent, on the steady-state stratification in a ventilated filling box. The buoyancy-driven displacement ventilation model of Linden et al. (J. Fluid Mech., vol. 212, 1990, p. 309) predicts... Read More about The role of diffusion on the interface thickness in a ventilated filling box.

Hybrid ventilation for low energy building design in south China (2009)
Journal Article
Ji, Y., Lomas, K., & Cook, M. (2009). Hybrid ventilation for low energy building design in south China. Building and Environment, 44(11), 2245-2255. https://doi.org/10.1016/j.buildenv.2009.02.015

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

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.

Resilience of naturally ventilated buildings to climate change: advanced natural ventilation and hospital wards (2009)
Journal Article
Lomas, K., & Ji, Y. (2009). Resilience of naturally ventilated buildings to climate change: advanced natural ventilation and hospital wards. Energy and Buildings, 41(6), 629-653. https://doi.org/10.1016/j.enbuild.2009.01.001

Naturally ventilated buildings have a key role to play mitigating climate change. The predicted indoor temperatures in spaces with simple single-sided natural ventilation (SNV) are compared with those in spaces conditioned using a form of edge in,... Read More about Resilience of naturally ventilated buildings to climate change: advanced natural ventilation and hospital wards.

Numerical simulation of transient flow development in a naturally ventilated room (2009)
Journal Article
Kaye, N., Ji, Y., & Cook, M. (2009). Numerical simulation of transient flow development in a naturally ventilated room. Building and Environment, 44(5), 889-897. https://doi.org/10.1016/j.buildenv.2008.06.016

Numerical simulations were conducted to model the transient flow development in a naturally ventilated space containing a centrally located localized source of heat. The simulations were compared with a series of small-scale laboratory experiments an... Read More about Numerical simulation of transient flow development in a naturally ventilated room.

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.