Development of building benchmarking index for improving gross-floor-area-based energy use intensity DOI
Kyungjae Lee, Hyunwoo Lim, Jeongyun Hwang

et al.

Energy and Buildings, Journal Year: 2024, Volume and Issue: unknown, P. 115103 - 115103

Published: Nov. 1, 2024

Language: Английский

Optimizing office building performance in the HSWW region of China using simulation with Hyperopt CatBoost and SPEA2 DOI Creative Commons
Yiyang Huang,

Z.F. Yang W.T. He,

Yuchen Qin

et al.

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: March 10, 2025

At present, the evaluation of comprehensive performance urban office buildings remains an area significant discussion. This research aims to optimize building in hot summer and warm winter (HSWW) region, focusing on three key aspects: energy use intensity (EUI), useful daylight illuminance (UDI), percentage thermal comfort (PTC). The study employs Hyperparameter Optimization (Hyperopt)-Categorical Boosting (CatBoost)-Strength Pareto Evolutionary Algorithm 2 (SPEA2) multi-objective optimization method, generating 3,000 datasets via Latin Hypercube Sampling (LHS). Building parameters are simulated using Ladybug Honeybee models, consumption levels predicted CatBoost model. Subsequently, Hyperopt is used hyperparameters, SPEA2 algorithm applied identify optimal solutions. results indicate that Hyperopt-CatBoost demonstrates excellent predictive performance, with R² values 0.996, 0.954, 0.985 for consumption, lighting, comfort, respectively. By (MOO) design parameters, reduced by 29.61%, lighting efficiency improves 59.61%, increases 37.69% compared original design. provides a systematic plan data support energy-saving design, improving enhancing renovation villages.

Language: Английский

Citations

0

Hierarchical porous PI/BC/SiO2 aerogel-based composite phase change material with superior compression resistance and heat resistance DOI
Junhao Zhang, Huanzhi Zhang, Fen Xu

et al.

Journal of Energy Storage, Journal Year: 2025, Volume and Issue: 118, P. 116286 - 116286

Published: March 17, 2025

Language: Английский

Citations

0

Simulation of Heat Pump with Heat Storage and PV System—Increase in Self-Consumption in a Polish Household DOI Creative Commons
Jakub Szymiczek, Krzysztof Szczotka, Piotr Michalak

et al.

Energies, Journal Year: 2025, Volume and Issue: 18(9), P. 2325 - 2325

Published: May 2, 2025

The use of renewables in heat production requires methods to overcome the issue asynchronous load and energy production. most effective method for analyzing intricate thermal dynamics an existing building is through transient simulation, utilizing real-world weather data. This approach offers a far more nuanced understanding than static calculations, which often fail capture dynamic interplay environmental factors performance. Transient simulations, by their nature, model building’s behavior over time, reflecting continuous fluctuations temperature, solar radiation, wind speed. Leveraging actual meteorological data enables simulation faithfully system under realistic operational scenarios. crucial evaluating effectiveness heating, ventilation, air conditioning (HVAC) systems, identifying potential inefficiencies, assessing impact various energy-saving measures. can reveal how mass absorbs releases heat, gains influence indoor temperatures, ventilation patterns affect losses. In this paper, household heating consisting source pump, PV, buffer tank simulated analyzed. 3D accurately represents geometry properties. virtual representation serves as basis calculating losses gains, considering such insulation levels, window characteristics, orientation. based on calculation EN ISO 52016-1 standard. modeled temperature sun irradiance. EBSILON professional 16.00 software 10 min time step during season. results prove that with right control efficiently increase auto consumption self-produced PV electric energy, leading reduction effects higher economic profitability.

Language: Английский

Citations

0

Bayesian regression modeling and inference of energy efficiency data: the effect of collinearity and sensitivity analysis DOI Creative Commons

Laila A. Al‐Essa,

Endris Assen Ebrahim,

Yusuf Ali Mergiaw

et al.

Frontiers in Energy Research, Journal Year: 2024, Volume and Issue: 12

Published: July 30, 2024

The majority of research predicted heating demand using linear regression models, but they did not give current building features enough context. Model problems such as Multicollinearity need to be checked and appropriate must chosen based on their significance produce accurate load predictions inferences. Numerous energy efficiency correlate with each other in the dataset. standard Ordinary Least Square has a problem when dataset shows Multicollinearity. Bayesian supervised machine learning is popular method for parameter estimation inference frequentist statistical assumptions fail. prediction output multiple collinearity needs careful data analysis. estimates hypothesis tests were significantly impacted by that occurred among This study demonstrated several shrinkage informative priors likelihood framework alternative solutions or remedies reduce manuscript tried model four distinct models prior distributions Hamiltonian Monte Carlo algorithm Regression Modeling Stan package used fit models. Several comparison assessment methods select best-fit weakly best-fitted compared Squares collinear data. numerical findings variance inflation factor, coefficient errors, sensitivity likelihoods. It suggested applied science, engineering, agriculture, health, disciplines check effect modeling better inference.

Language: Английский

Citations

1

Multi-criteria assessment framework for sustainable rehabilitation and reconstruction of housing using mathematical model DOI
Dalel Kaoula, Fawzi Hicham Arrar

Journal of Housing and the Built Environment, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 2, 2024

Language: Английский

Citations

0

Consequences of Non-Compliance with Technological Procedures in the Realisation of Construction Objects from the Point of View of Heat Consumption for Heating—A Case Study on Selected Construction Sites in the Slovak Republic DOI Creative Commons

Ján Hlina,

Peter Makýš,

Patrik Šťastný

et al.

Energies, Journal Year: 2024, Volume and Issue: 17(23), P. 5843 - 5843

Published: Nov. 21, 2024

This article focuses on the energy performance of buildings with an emphasis consequences non-compliance technological practices during building process. We analyse impact construction deficiencies consumption heat for heating, focusing specific case studies selected constructions in Slovak Republic. The results show that prescribed standards and procedures leads to significant deterioration building’s efficiency, which is manifested increased higher operating costs. findings this study have key importance future projects as they offer valuable recommendations improving quality, thus contributing a more sustainable efficient When designing near-zero demand, it necessary eliminate all risks project arise preparation design itself, well implementation.

Language: Английский

Citations

0

Development of building benchmarking index for improving gross-floor-area-based energy use intensity DOI
Kyungjae Lee, Hyunwoo Lim, Jeongyun Hwang

et al.

Energy and Buildings, Journal Year: 2024, Volume and Issue: unknown, P. 115103 - 115103

Published: Nov. 1, 2024

Language: Английский

Citations

0