Future climate impacts on urban office Buildings: Energy, comfort, and passive solutions in Osaka, Japan

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F25%3A00384352" target="_blank" >RIV/68407700:21110/25:00384352 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21720/25:00384352

Výsledek na webu

<a href="https://doi.org/10.1016/j.jtherbio.2025.104212" target="_blank" >https://doi.org/10.1016/j.jtherbio.2025.104212</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jtherbio.2025.104212" target="_blank" >10.1016/j.jtherbio.2025.104212</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Future climate impacts on urban office Buildings: Energy, comfort, and passive solutions in Osaka, Japan

Popis výsledku v původním jazyce

Climate change is a major driver of rising energy demand, with region-specific manifestations that significantly affect environmental conditions, development potential, and human well-being. This study explores the thermal performance and energy demands of a six-story office building in Osaka, Japan, under current (2020s) and projected (2090s) climate conditions. Although extensive studies have explored building energy performance and climate resilience, limited research has focused specifically on hot and humid climates, where extreme temperature and moisture levels significantly impact building behavior. EnergyPlus is used to simulate indoor air temperature, operative temperature, Predicted Mean Vote (PMV) for thermal comfort, and the energy con-sumption of a Variable Refrigerant Flow (VRF) heat pump system. Results indicate significant overheating in unconditioned zones, with operative temperatures exceeding 36 °C during summer in the 2090s. Conditioned zones also experience challenges, with cooling set-points surpassed on extremely hot days. Energy consumption analysis reveals a 20 % increase in cooling demand, from 3323 kW in the 2020s to 3983 kW in the 2090s, highlighting the impact of climate change. The findings emphasize that passive cooling strategies, such as cross-ventilation, dynamic shading, and high-performance insulation, can reduce cooling loads by 15–25 %. These results underscore the urgent need for climate-resilient building design and provide actionable insights for adaptive strategies in hot-humid urban environments. Future work will integrate adaptive comfort models and explore hybrid passive-active systems to enhance resilience. Future research will integrate adaptive comfort models and investigate hybrid passive-active systems to further enhance building resilience under extreme climate conditions.

Název v anglickém jazyce

Future climate impacts on urban office Buildings: Energy, comfort, and passive solutions in Osaka, Japan

Popis výsledku anglicky

Climate change is a major driver of rising energy demand, with region-specific manifestations that significantly affect environmental conditions, development potential, and human well-being. This study explores the thermal performance and energy demands of a six-story office building in Osaka, Japan, under current (2020s) and projected (2090s) climate conditions. Although extensive studies have explored building energy performance and climate resilience, limited research has focused specifically on hot and humid climates, where extreme temperature and moisture levels significantly impact building behavior. EnergyPlus is used to simulate indoor air temperature, operative temperature, Predicted Mean Vote (PMV) for thermal comfort, and the energy con-sumption of a Variable Refrigerant Flow (VRF) heat pump system. Results indicate significant overheating in unconditioned zones, with operative temperatures exceeding 36 °C during summer in the 2090s. Conditioned zones also experience challenges, with cooling set-points surpassed on extremely hot days. Energy consumption analysis reveals a 20 % increase in cooling demand, from 3323 kW in the 2020s to 3983 kW in the 2090s, highlighting the impact of climate change. The findings emphasize that passive cooling strategies, such as cross-ventilation, dynamic shading, and high-performance insulation, can reduce cooling loads by 15–25 %. These results underscore the urgent need for climate-resilient building design and provide actionable insights for adaptive strategies in hot-humid urban environments. Future work will integrate adaptive comfort models and explore hybrid passive-active systems to enhance resilience. Future research will integrate adaptive comfort models and investigate hybrid passive-active systems to further enhance building resilience under extreme climate conditions.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20103 - Architecture engineering

Projekt

—

Návaznosti

R - Projekt Ramcoveho programu EK

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

JOURNAL OF THERMAL BIOLOGY

ISSN

0306-4565

e-ISSN

1879-0992

Svazek periodika

131

Číslo periodika v rámci svazku

červenec

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

11

Strana od-do

—

Kód UT WoS článku

001575158500001

EID výsledku v databázi Scopus

2-s2.0-105010701100