The successful completion of the project will support Egyptian Government''s target of 42 % supply of electricity from renewable energy sources by 2030 and the national priority area of building a climate-resilient green economy. The project is funded by the Ministry of Foreign Affairs of Denmark and administrated by Danida Fellowship Centre ...
Numerous published works have investigated the application of different types of building-scale energy storage, e.g., thermal storage, ... Battery Energy-to-Power ratio 2.8 (new battery) 1.8 (second-life EV) r (discount rate) 4% [39] 5. …
Residential buildings comprise 70% of Egypt''s building stock [1], and consume 60% of the country''s total energy [2], most of which was, until recently, …
and properties of phase change energy storage building materials based on capric acid ... and the appropriate mass ratio of CA–OD/FA–DME is 30:40:30 by diffusion–exudation circle experiments ...
Energy conservation is recently the most important issue all over the world, including in Egypt. Recently, the built environment of Egypt has experienced a dramatic change in its buildings'' typology, with more interest in constructing high-rise buildings. This in turn creates high demand for energy, as high-rise buildings are …
The energy efficiency ratio of a shell-and-tube phase change thermal energy storage unit is more sensitive to the outer tube diameter. Under the same working conditions, within the heat transfer fluids studied, the heat storage property of the phase change thermal energy storage unit is best for water as heat transfer fluid.
This paper investigates the residential building energy needs in Egypt. Firstly, the energy needs of residential building are evaluated in compliance with Energy Efficiency …
The long axe of the models is oriented to the north ("the optimum orientation within all regions"), with a window-to-wall ratio (WWR) of 30%. The …
Accurate estimation of the energy storage capacity of a cavern with a defined storage volume and type is the very first step in planning and engineering a Compressed Air Energy Storage (CAES) plant. The challenges in obtaining a reliable estimation arise in the complexity associated with the thermodynamics of the internal air …
The heat energy further captured by energy-storage phosphorous building gypsum in the endothermic and exothermic stages is 28.19 J/g and 28.64 J/g, respectively, which can be used to prepare energy-saving building materials. Keywords: energy storage; paraffin; phosphorous building gypsum; response surface; pore structure.
Results are evaluated by taking into account the three criteria; energy saving ratio, latent heat storage time ratio and average liquid fraction. As a result of the evaluation, the potential for application of PCM-composite aggregates to the building envelope is evaluated.
Refs. Journal Year Contents [6] Solar Energy 1983 Survey on: PCMs classification; low temperature latent heat storage systems; thermal properties and long term stability of different PCMs and corrosion problems [7] …
Thermal energy storage (TES) is ideally suited to enable building decarbonization by offsetting energy demand attributed to thermal loads. TES can facilitate the integration of renewable energy and buildings to the grid with demand-side strategies such as load shedding and shifting.
ENERGY MATERIALS Preparation and properties of phase change energy storage building materials based on capric acid– octadecanol/fly ash–diatomite Dahua Jiang1,*, Yuzhen Xu1, Changyao Chen2, Jingtao Liu1, and Pu Chen1 1School of Civil Engineering and Surveying & Mapping Engineering, Jiangxi University of Science and Technology, ...
This chapter presents a state-of-the-art review on the available thermal energy storage (TES) technologies by sensible heat for building applications. After a brief introduction, the basic principles and the required features for desired sensible heat storage are summarized. Then, material candidates and recent advances on sensible heat or cold ...
Thermal energy storage (TES) is a method by which energy is produced and stored at one time period for use during a different time period. The most common application in the U.S. is for cooling and entails making chilled water or ice during off-peak times (at night) and storing it for use during peak demand (the next day).
It is recommended that the compactness ratio has to be less than 0.7m2/ m3 (McLeod et al., n.d.). Regarding the building shape compactness, the building performance is varying in different climate conditions.
Farzaneh-Gord et al. [15] and Sadi et al. [16] demonstrated that with a three-stage filling, the refueling time is reduced and requires less energy for gas storage, but the filled mass is ...
M. Hamza, S. Alsaadani and M. Fahmy Energy Reports 8 (2022) 116–122 Fig. 1. Building envelope of the retrofitted cases (a) Roof layers (7 cm concrete tiles−4 cm polystyrene - 20 cm reinforced ...
Within the Mediterranean climate, a study [] concerned with investigating the impact of a rectangular residential building mass''s aspect ratio, comprising width-to …
Journal volume & issue Vol. 8 pp. 116 – 122 Abstract Read online Energy consumption of the buildings sector has increased dramatically over the past decade. In Egypt, existing buildings consume 60% of electrical ...
show that to achieve the lowest energy consumption in Cairo, the planners and urban designers. should form the neighborhoods in nearly horizontal buildings (2 f loors maximum, it means low. height ...
Battery storage will be a necessary technology once renewable energy accounts for 40-50% of the energy mix, Zahran said, who said that it could be done in less than 10 years provided the …
This research discusses the impact of Window to Wall Ratio (WWR), as an important parameter of building''s envelope design, on the total annual energy consumption of high …
× W × H), which represents a total floor area of 16.45 m 2 and an internal volume of each compartment of 21.14 m 3. ... The Energy Saving and Indoor Comfort Improvements with Latent Thermal Energy Storage in …
PDF | The development of school building in Egypt occupies a high priority in society''s interests, despite the diversity of priority issues ... Volume 9 ~ Issue 5 (2021)pp: 56-72 ISSN(Online ...
6.2 Operational Energy Tall buildings use twice the amount of energy used as their equivalent of low buildings. The energy is needed to provide building users with their goods, visitor accessibility, and water …
A mathematical model of thermal performance of a passive energy storage building is established. The combined envelope with two-layer PCM has better temperature regulation and heat storage effect. The thickness ratio of PCM layers in the combined PCM envelope from inside to outside is 13.3:26.7.
Thermal energy storage (TES) is a technology that stocks thermal energy by heating or cooling a storage medium so that the stored energy can be used at a later time for heating and cooling applications and power …
On the building level, the green roof effect on energy consumption in buildings was addressed in a number of studies. For example, Kamel et al. studied the effect of GR soil conductivity and ...
Thus, a balance should be established between economic considerations and the desired energy storage efficiency and capacity level. Recently, efforts have been made to investigate the effect of the partially filling ratio on the LHTES unit. As shown in Table 1, the effect of different partially filling ratios on the LHTES unit has been studied …
The classification of the materials used for TES had been given by Abhat [1] and Mehling and Cabeza [26].As shown in Fig. 1, the storage materials classification has been given including sensible, latent and chemical heat Table 1, parts of frequently-used sensible TES materials and PCMs for building application had been shown including …