Climate-Resilient Office Buildings: Energy and Comfort in Japan's Future (2090s)

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F25%3A00385229" target="_blank" >RIV/68407700:21110/25:00385229 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21720/25:00385229

Výsledek na webu

<a href="https://doi.org/10.1016/j.rineng.2025.107235" target="_blank" >https://doi.org/10.1016/j.rineng.2025.107235</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.rineng.2025.107235" target="_blank" >10.1016/j.rineng.2025.107235</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Climate-Resilient Office Buildings: Energy and Comfort in Japan's Future (2090s)

Popis výsledku v původním jazyce

This study evaluates the impact of climate change on energy consumption and indoor thermal comfort in a typical Japanese office building equipped with a Variable Refrigerant Flow (VRF) heat pump system, across five representative cities: Sapporo, Tokyo, Osaka, Fukuoka, and Naha. This study employs EnergyPlus to compare current (2020s) and future (2090s) Typical Meteorological Year (TMY) data, under Representative Concentration Pathway (RCP) 8.5 developed by the Intergovernmental Panel on Climate Change (IPCC) to estimate annual heating and cooling energy demands, Predicted Mean Vote (PMV), and Operative Temperature (OT). Findings reveal substantial reductions in heating demand, with decreases of 35% in Sapporo, 65% in Tokyo, 60% in Osaka, 79% in Fukuoka, and 100% in Naha, attributed to milder winters. Conversely, cooling demand surges by 26%, 19%, 20%, 30%, and 21% in these cities, respectively, driven by rising temperatures and humidity. Unconditioned zones, such as lobbies and corridors, experience severe overheating, with PMV values exceeding +3 and OT surpassing 34°C in the 2090s, particularly in humid subtropical regions like Naha and Fukuoka. These trends, exacerbated by increased Moushobi days and Urban Heat Island (UHI) effects, highlight the vulnerability of current building designs. The study proposes adaptive strategies, including climate-specific insulation, optimized Window-to-Wall Ratios (WWR), dynamic façades, and advanced Heating, Ventilation, and Air Conditioning (HVAC) controls, to mitigate cooling energy demand and ensure thermal comfort. By addressing region-specific challenges across Japan’s diverse climates, this research underscores the need for resilient, energy-efficient building solutions to adapt to future climate scenarios, promoting sustainability and occupant well-being.

Název v anglickém jazyce

Climate-Resilient Office Buildings: Energy and Comfort in Japan's Future (2090s)

Popis výsledku anglicky

This study evaluates the impact of climate change on energy consumption and indoor thermal comfort in a typical Japanese office building equipped with a Variable Refrigerant Flow (VRF) heat pump system, across five representative cities: Sapporo, Tokyo, Osaka, Fukuoka, and Naha. This study employs EnergyPlus to compare current (2020s) and future (2090s) Typical Meteorological Year (TMY) data, under Representative Concentration Pathway (RCP) 8.5 developed by the Intergovernmental Panel on Climate Change (IPCC) to estimate annual heating and cooling energy demands, Predicted Mean Vote (PMV), and Operative Temperature (OT). Findings reveal substantial reductions in heating demand, with decreases of 35% in Sapporo, 65% in Tokyo, 60% in Osaka, 79% in Fukuoka, and 100% in Naha, attributed to milder winters. Conversely, cooling demand surges by 26%, 19%, 20%, 30%, and 21% in these cities, respectively, driven by rising temperatures and humidity. Unconditioned zones, such as lobbies and corridors, experience severe overheating, with PMV values exceeding +3 and OT surpassing 34°C in the 2090s, particularly in humid subtropical regions like Naha and Fukuoka. These trends, exacerbated by increased Moushobi days and Urban Heat Island (UHI) effects, highlight the vulnerability of current building designs. The study proposes adaptive strategies, including climate-specific insulation, optimized Window-to-Wall Ratios (WWR), dynamic façades, and advanced Heating, Ventilation, and Air Conditioning (HVAC) controls, to mitigate cooling energy demand and ensure thermal comfort. By addressing region-specific challenges across Japan’s diverse climates, this research underscores the need for resilient, energy-efficient building solutions to adapt to future climate scenarios, promoting sustainability and occupant well-being.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20101 - Civil 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

Results in Engineering

ISSN

2590-1230

e-ISSN

2590-1230

Svazek periodika

28

Číslo periodika v rámci svazku

12

Stát vydavatele periodika

AT - Rakouská republika

Počet stran výsledku

16

Strana od-do

—

Kód UT WoS článku

001584901100006

EID výsledku v databázi Scopus

2-s2.0-105016222839