• Energy Research
• 7. Clean energy close
• 6. Clean water close
• Energy Procedia close

AbstractThis study presents the results obtained from simulated performance monitoring of seven different roof mounted PV systems in Abu Dhabi, the largest of UAE's emirate. Data were analyzed to evaluate the suitability of PV systems for installations in different types of buildings in the UAE. The PV systems consisted of amorphous silicon (a-Si) and polycrystalline silicon (p-Si) PV technologies. Different performance evaluation parameters are presented. The results give an indication of the system performance and provide a basis for economic and environmental assessment of the PV generated electricity.

AbstractThis study presents the results obtained from simulated performance monitoring of seven different roof mounted PV systems in Abu Dhabi, the largest of UAE's emirate. Data were analyzed to evaluate the suitability of PV systems for installations in different types of buildings in the UAE. The PV systems consisted of amorphous silicon (a-Si) and polycrystalline silicon (p-Si) PV technologies. Different performance evaluation parameters are presented. The results give an indication of the system performance and provide a basis for economic and environmental assessment of the PV generated electricity.

AbstractThis study investigates the characteristics of a lean premixed hydrogen/air flame in a ceramic granular bed (CGB) by conducting experimental measurements and numerical simulations. The experimental results show that the operating range (equivalence ratio, ϕ = 0.2–0.4) of CGBs for flame propagation is smaller than that of free flame due to the laminar flame speed (SL), reactivity, and firing rate (Γ) of H2. In addition, flame temperature (Tf) increases with increasing Γ, but decreases with increasing ϕ. Furthermore, Sab/SL decreases with increasing uɛ/SL by the fuel characteristic of Hydrogen (H2) and heat recirculation in the CGB. The numerical simulation results show that the flame reaction zone in the CGB (porosity, ɛ = 0.33) is greater than that of free flame (ɛ = 1) because H2 reacts early and changes the flame propagation characteristics.

AbstractThis study investigates the characteristics of a lean premixed hydrogen/air flame in a ceramic granular bed (CGB) by conducting experimental measurements and numerical simulations. The experimental results show that the operating range (equivalence ratio, ϕ = 0.2–0.4) of CGBs for flame propagation is smaller than that of free flame due to the laminar flame speed (SL), reactivity, and firing rate (Γ) of H2. In addition, flame temperature (Tf) increases with increasing Γ, but decreases with increasing ϕ. Furthermore, Sab/SL decreases with increasing uɛ/SL by the fuel characteristic of Hydrogen (H2) and heat recirculation in the CGB. The numerical simulation results show that the flame reaction zone in the CGB (porosity, ɛ = 0.33) is greater than that of free flame (ɛ = 1) because H2 reacts early and changes the flame propagation characteristics.

AbstractThe development and implementation of effective policies for promoting energy efficiency in the household sector has been an emerging target of the EU. A recent analysis of Latvian households included in a smart metering pilot, shows this type of housing as the most statistically significant variable to impact electricity savings. This study deals with the statistical analysis of residential buildings to find simplified correlations for the assessment of factors affecting changes in electricity consumption, in particular, taking into account selected building characteristics, as well as the personal, socio-economic, socio-demographic characteristics of households. Multiple linear regression analysis is used to present and compare results between two groups – the target group with smart meters and control group without smart meters by differentiating among typical heating types as determined in a field study.

AbstractThe development and implementation of effective policies for promoting energy efficiency in the household sector has been an emerging target of the EU. A recent analysis of Latvian households included in a smart metering pilot, shows this type of housing as the most statistically significant variable to impact electricity savings. This study deals with the statistical analysis of residential buildings to find simplified correlations for the assessment of factors affecting changes in electricity consumption, in particular, taking into account selected building characteristics, as well as the personal, socio-economic, socio-demographic characteristics of households. Multiple linear regression analysis is used to present and compare results between two groups – the target group with smart meters and control group without smart meters by differentiating among typical heating types as determined in a field study.

The industrial sector accounts for 17% of end-use energy in the UK, and 54% globally. Therefore, there is substantial scope for simulating and assessing potential energy retrofit options for industrial buildings. Building Energy Modelling (BEM) applied to industrial buildings poses a complex but important opportunity for reducing global energy demand, due to years of renovation and expansion. Large and complex industrial buildings make modelling existing geometry for BEM difficult and time consuming. This paper presents a potential solution for quickly capturing and processing as-built geometry of a factory to be utilized in BEM. Laser scans were captured from the interior of an industrial facility to produce a Point Cloud. The existing capabilities of a Point Cloud processing software were assessed to identify the potential development opportunities to automate the conversion of Point Clouds to building geometry for BEM applications. In conclusion, scope exists for increasing the speed of 3D geometry creation of an existing industrial building for application in BEM and subsequent thermal simulation.