Effect of base slab mass and number of rubber layers on base isolation system performance in enhancing building dynamic response DOI
Mohamed Amine Abid,

Soumaya El Janous,

Abdelouafi El Ghoulbzouri

et al.

World Journal of Engineering, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 6, 2024

Purpose Traditional designs might not withstand earthquake forces adequately, potentially leading to structural damage. This paper aims examine the impact of varying base slab mass and number rubber layers in isolators on performance isolation systems improve seismic buildings. Design/methodology/approach The isolated structure is modeled as a two-degree freedom system, its corresponding equation motion established. Displacement expressions for roof are derived using mode superposition method. Findings A system improves buildings’ behavior, particularly when higher layer numbers heavier assumed. At an excitation frequency 8 rad/s, increase from 9 11 led 30% reduction relative displacement. 6 40% displacement was observed passing (mb) 7.5 tons with damping ratios 12% 10% first second modes 30 lower 9.5% 4.2%. Originality/value high ratio significantly increases fixed-base building. However, do necessarily lead better performance. Besides, enhances dynamic response by shifting fundamental away frequency.

Language: Английский

Towards Climate-Responsive Net Zero Energy Rural Schools: A Multi-Objective Passive Design Optimization with Bio-Based Insulations, Shading, and Roof Vegetation DOI
Niima Es-sakali, Jens Pfafferott, Mohamed Oualid Mghazli

et al.

Sustainable Cities and Society, Journal Year: 2025, Volume and Issue: unknown, P. 106142 - 106142

Published: Jan. 1, 2025

Language: Английский

Citations

2
A radiative heat network method for accurate indoor radiant field and thermal comfort evaluation DOI
Huaiyuan Wang, Yanwu Lü,

Xuefeng Tian

et al.

Applied Thermal Engineering, Journal Year: 2025, Volume and Issue: unknown, P. 125910 - 125910

Published: Feb. 1, 2025

Language: Английский

Citations

1
Evaluating Passive PCM Performance in Building Envelopes for Semi-Arid Climate: Experimental and Numerical Insights on Hysteresis, Sub-Cooling, and Energy Savings DOI
Imad Ait Laasri, Mouatassim Charai, Niima Es-sakali

et al.

Journal of Building Engineering, Journal Year: 2024, Volume and Issue: unknown, P. 111161 - 111161

Published: Oct. 1, 2024

Language: Английский

Citations

4
Improving solar water heating performance and reducing emissions by evacuated tube collectors with preheating units: Iraq as a case study DOI
Anees A. Khadom, Hameed B. Mahood,

Adiba A. Mahmmod

et al.

Applied Thermal Engineering, Journal Year: 2025, Volume and Issue: unknown, P. 125596 - 125596

Published: Jan. 1, 2025

Language: Английский

Citations

0
Optimizing building performance through the integration of electrochromic glass technology in building facades: a simulation-based study of an office building in Cairo, Egypt DOI
Eslam Mohamed Moraekip

Open House International, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 19, 2025

Purpose The built environment enhances quality of life, prompting architects and engineers to explore innovative technologies for improving building performance. Electrochromic (EC) glass technology is one such solution that offers real-time control facade glazing properties. Conventional materials often struggle adapt changing external conditions, increasing reliance on mechanical systems. EC addresses this by adjusting its tint in response these potentially reducing energy consumption comfort. Design/methodology/approach This study investigates the advantages integrating into facades evaluating efficacy enhancing thermal performance, efficiency, operational expenses. uses performance simulation software model a proposed office Cairo, Egypt, comparing two scenarios: with conventional other technology. aim highlight benefits comfort, daylighting efficiency. analysis will compare cooling heating designs consumption, ultimately concluding technology’s impact Findings Integrating significantly reduces solar heat gains heating, ventilating air conditioning (HVAC) consumption. Solar dropped 77.47%, resulting 50.95% decrease HVAC use compared glazing. also comfort daylighting, indoor environment. Originality/value Then, improves savings, enhanced efficient daylight use. essential sustainable design, contributing resilient enjoyable environments.

Language: Английский

Citations

0
Quantifying Socio-Regional Variability via Factor Analysis over China: Optimizing Residential Sector Emission Reduction Pathways DOI Open Access
Zhao Yu, Prasanna Divigalpitiya

Environments, Journal Year: 2025, Volume and Issue: 12(2), P. 37 - 37

Published: Jan. 22, 2025

Policy synergy, the evidence-based coordination of public policies, can aid in more rapidly achieving air pollutant and carbon dioxide (CO2) emission reduction targets. Using logarithmic mean Divisia index (LMDI) decomposition, coupling degree (CCD), geographically temporally weighted regression (GTWR) models, we analyzed characteristics, drivers, pathways residential pollution across 30 Chinese provinces from 2001 to 2020. The southern produced than northern provinces, with gap widening after 2015. In sector, energy factors (LMDI decomposition result, 686,681.9) population size (14,331) had greater impacts on emissions structure, intensity, synergies, or GDP per capita. GTWR analysis CCD mechanism indicated that hydroelectricity urbanization enhanced southeast. Meanwhile, west, was improved by R&D investment, government spending industrial control, electricity consumption, capita cropland, temperature, urbanization. This provides a valuable reference for optimizing strategies.

Language: Английский

Citations

0
Effect of Wall, Roof, and Window‐to‐Wall Ratio on the Cooling and Heating Load of a Building in India DOI Creative Commons
Asim Ahmad, Om Prakash, Lakhbir Singh Brar

et al.

Energy Science & Engineering, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 7, 2025

ABSTRACT This study examines the impact of various combinations walls, roofs, and window‐to‐wall ratios (WWRs) on cooling heating loads residential buildings in India's composite climatic zone. Utilizing EnergyPlus eQuest simulations, thermal performance three building types is analyzed across 32 cases involving two walls (W1, W2), roofs (R1, R2), WWRs 10%, 20%, 30%, 40%. The results indicate that Case 29 (W2 R2 N2 WWR1), characterized by a north‐facing orientation, square‐shaped design, 10% WWR, achieves lowest among all configurations. Specifically, Building 1, this configuration reduces 26.0% (from 204 to 151 kBTU/h) 28.6% 224 160 compared highest load scenario, 4 (W1 R1 N1 WWR4, west‐facing 40% WWR). Similar trends are observed for Buildings 2 3. These findings underscore critical role optimizing envelope parameters, particularly shape, achieving significant energy savings. insights provided can aid architects, engineers, policymakers designing energy‐efficient buildings.

Language: Английский

Citations

0
Multi-performance coupled optimization drives low-carbon retrofitting of site museums DOI
Shanshan Yao,

Shugang Yu,

Hu Cao

et al.

Building and Environment, Journal Year: 2025, Volume and Issue: unknown, P. 112689 - 112689

Published: Feb. 1, 2025

Language: Английский

Citations

0
Assessment of energy-saving strategies mitigating high energy usage in residential buildings DOI
Thabo Khafiso, Samuel Adeniyi Adekunle, Clinton Aigbavboa

et al.

Property Management, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 18, 2025

Purpose The increasing energy consumption in residential buildings poses significant challenges to sustainability, economic efficiency, and environmental health. Despite the availability of numerous energy-saving strategies, their adoption remains inconsistent due various barriers such as cost, awareness technical limitations. This paper aims assess strategies mitigating high buildings. Design/methodology/approach study adopted a quantitative research methodology. A carefully developed questionnaire was distributed group 20 Delphi experts collect data. These possess extensive experience areas use, management savings. also issued end users gather collected data were analyzed using descriptive analysis. Findings results indicate strong preference for certain measures, with energy-efficient appliances, occupant behavior adjustments heating, ventilation air conditioning (HVAC) system upgrades emerging most frequently strategies. Measures installing smart thermostats windows ranked highly, reflecting perceived effectiveness reducing consumption. However, like weatherizing power strips less implemented, suggesting lower prioritization or adoption. findings further emphasize importance HVAC-related maintenance upgrades, highlighted by top rankings frequent while simpler actions, insulation turning off lights, despite potential Research limitations/implications study’s limitations include reliance on self-reported data, bias participant responses lack consideration contextual factors regional climate, socioeconomic conditions technological access that may influence measures. Originality/value is distinctive its integration method questionnaires holistically evaluate measures excessive use structures. By integrating expert consensus empirical from diverse contexts, it provides comprehensive nuanced understanding effective practices.

Language: Английский

Citations

0
Measurement-Based Assessment of Energy Performance and Thermal Comfort in Households Under Non-Controllable Conditions DOI Creative Commons
G. Stavrakakis, D. Bakirtzis, Dimitrios Tziritas

et al.

Energies, Journal Year: 2025, Volume and Issue: 18(5), P. 1087 - 1087

Published: Feb. 24, 2025

The current research presents a practical approach to assess energy performance and thermal comfort in households through monitoring campaigns. campaigns are conducted Greek city, involving the installation of low-intrusive recording devices for hourly electricity consumption, indoor temperature, relative humidity different residences winter summer periods. recorded environmental conditions initially compiled Predicted Mean Vote (PMV) index, followed by formulation databases PMV local outdoor climate retrieved an official source meteorological conditions. A special algorithm database processing was developed which takes into account eligibility data series, i.e., only ones corresponding non-zero consumption treated as eligible. First, sequential temporal progress is produced towards assessment energy-use intensity patterns. Secondly, summing within 0.5-step intervals, under three temperature intervals with approximately same number eligible measurements, reliable interrelations obtained even limited amount measured data. It revealed that weekly ranged 0.15–3.59 kWh/m2 cases 0.29–1.72 cases. acceptable range −1 ≤ 1 interval holds occurrence frequency from 69.46% 93.39% 37.94% 70.31% examined cases, respectively. Less resistance discomfort observed at most exhibiting peak 1.5 interval, contrary occurred −0.5 interval. study provides graphical relationships various temperatures paving way correlating consumption.

Language: Английский

Citations

0