Case Study Analysis for Building Envelop and its Effect on Environment

Elsafty, Ahmed F.; Joumaa, Chibli; Elazm, Mohamed M. Abo; Elharidi, Aly M.

doi:10.1016/j.egypro.2013.07.109

Cited by 5 publications

(4 citation statements)

References 5 publications

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“…Software analysis needs validation by experimental results before taking its results for granted to scientific researchers. HvacLoadExplorer was used by much previous research to conduct heating and cooling loads [25]- [27]. Simulation using HvacLoadExplorer depended ____________________________________________________________________________ 2020 / 24 151 on defining each building element according to its thermal conditio n. This software uses the heat balance method (HBM) for calculating cooling and Heating loads in buildings.…”

Section: Validationmentioning

confidence: 99%

“…A thermal mass is expected to be an appropriate addition in the arid regions. The shelter's heat storage (thermal-floor) performance was investigated in Amman using HvacLoadExplorer, which estimated the hourly heating load in Watts for the day of 21 of January at an average temperature of 6.6 ºC and relative humidity of 83 % [25]. The simulation was performed for two cases.…”

Section: Heating Load and Energy Demand For The Shelter In Amman Jordanmentioning

confidence: 99%

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Reuse Waste Material and Carbon Dioxide Emissions to Save Energy and Approach Sustainable Lightweight Portable Shelters

Alkhalidi

Zaytoun

2020

Environmental and Climate Technologies

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AbstractDespite their great significance, lightweight structures have poor thermal inertia. In order to enhance the thermal comfort inside such buildings, architects need lightweight thermal storage. In this paper a model was used to experimentally investigate Heating Load profiles in lightweight shelters. The profiles were created for the climate in Jordan, then simulated for other climate zones. The proposed design concept was used to create a replacement for a thermal mass in lightweight structures such as shelters; by combining passive solar gain with energy storage embodied within the shelter floor (thermal-floor) to absorb solar radiation. This shelter design decreased the Heating Load during the winter season by acting as heat storage that releases energy at night time after being exposed to solar radiation during the day. The passive design depends on shading elements and overhangs shades to control solar gain during different seasons to prevent overheating during the summer. An experimental investigation of this model was performed to validate the simulation results. Validated simulation results showed that the designed thermal-floor is 25 % of the total shelter’s floor area, which was crucial for obtaining favourable results. With CO2 as a thermal mass, heat load was reduced up to 68 % compared to a 20 cm concrete slab floor. The use of this thermal storage material yielded a reduction in annual heating demand by 85 kWh/m2.

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Section: Validationmentioning

confidence: 99%

Section: Heating Load and Energy Demand For The Shelter In Amman Jordanmentioning

confidence: 99%

Reuse Waste Material and Carbon Dioxide Emissions to Save Energy and Approach Sustainable Lightweight Portable Shelters

Alkhalidi

Zaytoun

2020

Environmental and Climate Technologies

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“…Khooban's [17] optimized the intelligent control of the air supply and pressure of a HVAC system, which showed better performance than conventional controllers. Elsafty et al [18] researched the energy usage savings in commercial buildings, which are significant portions of energy consumption; HVAC consumption was examined. They found that using insulation in buildings was to reduce energy consumption of the HVAC system.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Major Temporary Electrical Equipment Consumption and Usage Patterns in Educational Buildings: Case Study

2022

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The energy use patterns of electrical appliances are more difficult to predict than energy use for heating, ventilation, and air-conditioning (HVAC) and lighting, as: (1) there are large varieties of electrical equipment (e.g., appliances, vending machines, etc.) in buildings and each serves a different function; thus, their energy consumption patterns are difficult to predict; (2) electrical appliances are scattered across buildings, most are not permanently fixed to a location, and they consume much energy. Appliances are also not centrally controlled, such as HVAC and lighting. Thus, energy consumption patterns are more difficult to predict. In addition, electrical appliances consume significant amounts of energy to influence energy consumption volatility. This case study focuses on understanding the energy consumption patterns of electrical appliances in educational buildings. This research analyzes the electrical appliances and energy consumption data from institutional buildings and the factors that drive energy consumption. The analyses show that: (1) energy consumption patterns are dependent on building characteristics and use; (2) the number of appliances in a building influences the peak electricity consumption; (3) vending machines and fridges consume significant amounts of electricity; it has been proven (by minimum building energy loads) that buildings that have more vending machines have significantly higher minimum loads than no or fewer vending machines; and (4) the energy-saving potential from desktops and monitors rose to 60 kWh during lunchtime and 500 kWh at night.

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“…They concluded that the optimization of building design factors could substantially reduce the energy consumption of buildings. Elsafty et al 23 have been researching the saving of energy usage in commercial buildings in Egypt and its environmental effects. Since a significant portion of energy consumption is consumed by Egyptian commercial buildings, HVAC consumption has been examined.…”

Section: Introductionmentioning

confidence: 99%

Building envelopes toward energy‐efficient buildings: A balanced multi‐approach decision making

William

Suárez-López

Soutullo

et al. 2021

Intl J of Energy Research

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Summary The worldwide environmentally friendly trend has focused the last decade on emphasizing the value of energy conservation and reducing the carbon footprint in buildings, achieving zero energy buildings. Presently, viable building techniques, in developing countries, are insufficient to achieve zero energy buildings. Thus, authorities should implement policies mandating new developments and renovations to establish “energy‐efficient buildings”; nevertheless, design solutions should be properly evaluated and assessed preceding execution. The conservation of energy without jeopardizing human comfortability is a huge challenge for any designer. Occupants are less interested in making a major investment to save some expenses over the next two decades, especially nowadays that energy is still affordable. Therefore, improved indoor environmental conditions are perhaps another important parameter toward energy‐efficient buildings. Through dynamic simulations, this study examines the energy efficiency and thermal comfort achieved by integrating retrofitting strategies in an institutional building in three different American Society of Heating, Refrigerating and Air‐Conditioning Engineers (ASHRAE) hot climate zones represented by three cities of Egypt (Aswan, Cairo, and Alexandria). The built‐up baseline model is validated using actual energy usage data. The validated baseline model is then subjected to local sensitivity analysis to determine the driving parameters influencing the building's energy demand. The study at hand focuses on a broader perspective on sustainability. With a multiapproach decision‐making methodology based on the most recent measures, the study highlights the outcomes through an environmental–economic assessment and indoor thermal comfort depending on experts' weighting, responses, and recommendations. The outcomes postulate that the implementation of reflective paints solutions would achieve the highest percentages of whole‐building energy savings with 21%, 19%, and 17% for Aswan, Cairo, and Alexandria, respectively, improving indoor thermal comfort levels.

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Case Study Analysis for Building Envelop and its Effect on Environment

Cited by 5 publications

References 5 publications

Reuse Waste Material and Carbon Dioxide Emissions to Save Energy and Approach Sustainable Lightweight Portable Shelters

Reuse Waste Material and Carbon Dioxide Emissions to Save Energy and Approach Sustainable Lightweight Portable Shelters

Analysis of Major Temporary Electrical Equipment Consumption and Usage Patterns in Educational Buildings: Case Study

Building envelopes toward energy‐efficient buildings: A balanced multi‐approach decision making

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