CENTER OF DESIGN EXCELLENCE

THE EFFECTS OF OCCUPANCY, WWR, AND ORIENTATION ON ENERGY USE OF SCHOOL BUILDINGS IN GAZA, PALESTINE

READ SUMMARY

Palestinian schools are designed due to the standards of ministry of education (MOE) in cooperation with UNESCO. Local school building designs are required to be more efficient climate-based and energy-conscious while maintaining indoor comfort levels. In addition, these schools suffer from classroom high occupancy density of up in the Gaza Strip to 40 students, while the target value is 30 students per classroom. The paper aims to study the effect of occupancy, orientation, and window to wall ratio (WWR) factors on total energy consumption of school buildings in Gaza, Palestine and optimized the best for minimum energy use intensity.The method started by analyzing local climate and defined the reliable weather data for the software. A simulated model, that presented the common existing school building situation and located at Gaza strip, was developed. This model results was set as a reference value. The study investigated the effect of changing the occupancy density rates with considering international and local standards,orientation at the four basic directions, and WWR with regards to its impact on the amount of HVAC loads and lighting energy demand for the building. These investigations will optimize the best occupancy density and window size on energy consumption.

Read MORE ...

https://jur.journals.ekb.eg/article_92465.html

Mixed Mode buildings as approach to reduce energy consumption in office buildings in greater Cairo in Egypt

READ SUMMARY

Passive buildings conserve energy by decreasing need for HVAC, but it is hard to achieve full thermal comfort unlike air-conditioned buildings. mixed-mode buildings depend on passive mode when thermal comfort is achievable with natural ventilation and switch to active mode otherwise, it can give the building the best of both worlds. Mixed Mode building is a combine of natural ventilated building and AC building which needs different strategy of design which make the Mixed Mode building face a problem in design. this paper aims to reach a strategy to design mixed mode buildings envelope in greater Cairo to reach optimum energy consumption. the research concludes that the MMB is near to be a natural ventilated building with slight heavier south envelope which reach 0.8w/m2.k and 20% WWR although the north facade still a light skin with 2w/m2k and 50% WWR .

Read MORE ...

https://www.semanticscholar.org/paper/Mixed-Mode-buildings-as-approach-to-reduce-energy-Badawy-Abdin/781619bf9088d6074259e05ba266c908104635be

EFFECT OF GREEN ROOF DESIGN ON ENERGY SAVING IN EXISTING RESIDENTIAL BUILDINGS UNDER SEMI-ARID MEDITERRANEAN CLIMATE (AMMAN AS A CASE STUDY)

READ SUMMARY

In Jordan, residential buildings consume up to 48% of electrical energy, a significant amount of almost the half of energy goes for heating. Green roof is one of the passive techniques that improves energy performance. This paper examines the energy performance and Carbon Dioxide (CO₂) reduction of the green roof technology in the semi-arid Mediterranean climate of Amman by considering a typical apartment in Jordanian residential building as a case study. The effect of soil thickness, air gab and irrigation were determined for the performance of extensive green roof regarding to their plant. Malva Parviflora has been chosen for study. The base case model annual energy consumption has been determined by DesignBuilder software without a green roof installed. The result shows that installing extensive green roof saves annual energy consumption up to 14.25%.

Read MORE ...

https://jesaun.journals.ekb.eg/article_115008.html

ACHIEVING THE QUALITY OF THE LIGHT ENVIRONMENT INSIDE HOTEL ROOMS USING SMART SYSTEMS

READ SUMMARY

This research presents how to achieve the quality of the photovoltaic environment for hotel accommodation in hotels using smart systems, as reducing energy consumption rates is a major goal of the smart hotel design, which is directly related to the efficiency of the internal environment of the guest rooms, the higher the quality of the photovoltaic environment, the lower the rates Energy consumption, as it achieves a quality environment in the hotel's accommodation rooms, achieving visual comfort. A high-quality indoor environment is provided with attention to the quality of the "thermal environment" and the quality of "indoor air environment" as well as a good "light environment", which affects the visitor's sense of comfort inside the room through the elements of perceptual components of that internal environment, as the quality of the internal environment is linked A direct correlation to achieving energy efficiency, and this research will explain how to achieve the quality of the photovoltaic environment in smart hotel rooms, thus achieving comfort for visitors and reduces energy consumption by using smart systems.

Read MORE ...

https://journals.ekb.eg/article_87846.html

City's Environmental Performance Assessment

READ SUMMARY

The scope of this research is to introduce an approach to assess the city's environmental performance, a few years ago many environmental initiatives appeared to conserve the quality of life like Green city, Smart City, Sustainable City, and Eco City; all of them set their concerns on how to let the city green or sustainable, but another definition appeared to make the city resists its environmental and natural hazards called “Resilient City”. Many tools appeared to assess the city's environmental performance like Green City Index, Global City Indicator, and CASBEE for City all of them contain a certain list of measurable indicators to make the assessment more accurate and to reach the problem level. To apply this tool to the case study in “Cairo”, the data collection depends on field measurements of air quality and then linking this data geographically using ArcGIS program. Two selected districts are taken; one of them is characterized by heavy traffic load, and the other has a main path that was regenerated to be a pedestrian path so all the results reflect the effect of traffic load on air. Finally, this approach helps the decision makers to improve their city performance and to set the priorities to solve the problem.

Read MORE ...

https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3162379

The potential of the eco-passive construction technique for the Western Desert in Egypt

READ SUMMARY

Many aspects of globalisation have a direct impact on the built environment in general and specifically on the control of the architectural environment. Aspects of the globalisation process Figure 1. Prediction for the next 30 years of the rate of climate change in Egypt. The map illustrates that the Kharga oases zone, where the study takes place, is under a change rate of 4°C/100 years. The prediction was simulated by the KNMI Climate Explorer web-based tool. The cross refers to the loca-tion of Kharga (KNMI, 2014).CITAA17_Book.indb 117CITAA17_Book.indb 1172/19/2018 10:05:26 AM2/19/2018 10:05:26 AM 118affect, and are affected by, factors like business and work organisations, economics, sociocultural resources and the natural environment (Babones, 2007). Environmental challenges such as global warming, climate change and air pollution, and overfishing of the ocean are linked to globalisa-tion (Bridge, 2002). Climate change is impacting on our economy, health and communities in diverse ways. Over the past 50 years the average global temperature has increased at the fastest rate in recorded history (NRDC, 2011) (see Figure 1). In addition, it is impacting on the archi-tectural identities of nations that document their history and shape their unique character. The Kharga Oasis in the Western Desert Region in Egypt is lacking the required number of people to settle due to the hot arid climate which characterises this territory. The climate is character-ised by high and wide diurnal temperature fluctuation. At certain points around the year, the temperature difference can reach up to 20°C between day and night. This leads to insufficient thermal comfort in the territory, and it is interrupting the governmental plans to encourage peo-ple to settle in this territory, with fears that they may abandon it because of insufficient thermal comfort. Furthermore, this wide diurnal fluctuation affects human health with chronic kidney disease (Barsoum, 2013, Kalaitzidis et al., 2014

Read MORE ...

https://www.taylorfrancis.com/chapters/oa-edit/10.1201/9781315166551-11/potential-eco-passive-construction-technique-western-desert-egypt-mohamed-mahdy-magdy-mousa-ahmed-abdin

The role of nanotechnology in improving the efficiency of energy use with a special reference to glass treated with nanotechnology in office buildings

READ SUMMARY

The correct use of glass in office buildings plays a key role in the efficient use of energy especially with the application of nanotechnology. The main aim of this paper was to identify the capability of the different types of glass used in the building envelope to reduce energy consumption in office buildings. The chosen type will be combined with different Window to Wall Ratios (WWRs) and orientations to verify its efficiency. For this purpose, a simulation tool was used (Design Builder 3.1), then a comparison was done to test the performance of different types of glass and different orientations with the same glass thicknesses. The results are put into comparison in order to identify the best type of glass which can help in reducing the cost of energy consumption and how can it comply with the Egyptian energy code requirements for glass type which achieve energy efficiency. The results indicate that the use of glass treated with nanotechnology (Low-E) which have indices of (Solar Heat Gain Coefficient (SHGC) = 0.23), (Light Transmission (LT) = 0.42), (U Value (UV) = 1.55) reduces energy consumption by more than 20% compared to the standard 6 mm clear glass. Keywords: Nanotechnology, Energy saving, Thermal comfort, Low-E glass

Read MORE ...

https://doaj.org/article/350fab5661c94a2490d6bdde758d2fb9