Energy performance of air cooling systems considering indoor temperature and relative humidity in different climate zones in China

Ge, Fenghua; Guo, Xiaofeng; Liu, Hongkai; Wang, Jian; Lu, Cuiyin

doi:10.1016/j.enbuild.2013.04.007

Cited by 26 publications

(8 citation statements)

References 20 publications

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“…VGS dapat membantu menurunkan konsumsi energi pada penggunan air conditioner pada saat cuaca panas, dan dapat menjadi insulator panas pada saat cuaca dingin (Cameron et al, 2014). Menurut Ge et al (2013) penurunan suhu 1 o C dari ruangan akan menurunkan konsumsi energi sekitar 5,2-6,2%. Pada penelitian ini didapatkan perbedaan temperatur paling besar sebesar 1,2 o C, yang berarti dapat menurunkan konsumsi energi maksimal sekitar 6,2-7,44%.…”

Section: Penurunan Konsumsi Energiunclassified

Evaluasi Termal Vertical Greenery System Tipe Green Facade pada Dinding Bangunan

Haviz

Toha

Sipahutar

et al. 2021

JTEP-L

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Increasing of ambient temperature due to global warming has a direct impact on increasing the room temperature. Heat from surrounding is transferred to building wall and room. By installing the Vertical Greenery System (VGS) on the building wall, it can be an alternative for heat absorber and eco-friendly indicator. The aims of this study are to determine the temperature that can be reduced by VGS type Green Façade (GF) and achieve the energy consumption reduction because of GF installation. GF is installed on the building wall, property of Mining Engineering Department, Sriwijaya University, to measure its temperature, then compare it with the temperature on control wall. The results showed that the GF can reduce the room temperature up to 1,2oC, compared to the control wall and the average is 0,3oC. The decrease in average temperature causes a decrease in energy consumption due to the use of air conditioners by 1.56-1.92%. Keywords: global warming, green facade, thermal evaluation, vertical greenery system

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Section: Penurunan Konsumsi Energiunclassified

Evaluasi Termal Vertical Greenery System Tipe Green Facade pada Dinding Bangunan

Haviz

Toha

Sipahutar

et al. 2021

JTEP-L

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“…In contrast, the combination of temperature and humidity may cause higher cooling energy consumption, especially in hot seasons (X. Wang, Chen, & Ren, 2010a;Olonscheck et al, 2011;Ge et al, 2013;Li et al, 2018). In hot seasons with high humidity, cooling energy consumption is used not only for decreasing temperature but also for dehumidification to achieve comfortable conditions (Ge et al, 2013;Huang & Gurney, 2016;Li et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

“…Wang, Chen, & Ren, 2010a;Olonscheck et al, 2011;Ge et al, 2013;Li et al, 2018). In hot seasons with high humidity, cooling energy consumption is used not only for decreasing temperature but also for dehumidification to achieve comfortable conditions (Ge et al, 2013;Huang & Gurney, 2016;Li et al, 2018). In addition, Li et al (2018) found that the dominant climate factors affecting cooling energy consumption change from dry bulb temperature (DBT) to wet bulb temperature (WBT) (i.e., the combination of air temperature and humidity) with the climate changing from severe cold to hot.…”

Section: Introductionmentioning

confidence: 99%

An efficient climate index for reflecting cooling energy consumption: Cooling degree days based on wet bulb temperature

Cao

Zhang

et al. 2021

Meteorological Applications

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Cooling energy consumption of buildings is not only used for decreasing temperature, but for dehumidification. Therefore, cooling degree day (CDD) based on only temperature is insufficient for estimating the cooling energy consumption in buildings. In the present study, we aim to propose an efficient climate index (i.e., CDD based on wet bulb temperature [WBT], W CDD ) based on the combination of cooling energy consumption in a building and joint probability of temperature and humidity. In addition, the adaptation of the new W CDD was verified in 14 cities of different climate zones in China. The results showed that CDD based on dry bulb temperature (DBT) (D CDD ) can only explain 17%-60% of cooling energy consumption, whereas W CDD explaining 86%-97% of cooling energy consumption in the different climate zones. The optimal base WBTs are generally 17.74, 19.44, 21.04 and 22.56 C for the four climate zones, respectively. The present study reveals that W CDD by combining effects of temperature and humidity on cooling energy consumption can be much more efficiently used to estimate the cooling energy consumption compared with D CDD .More importantly, the W CDD is suitable for reflecting the cooling energy consumption for different climate zones. The collaborative changes of temperature and humidity under the conditions of climate change should be fully considered to take measures for decreasing the energy consumption for decreasing temperature and dehumidification.

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“…Fenghua Ge vd. [37], genel ısıl konfor denklemindeki diğer değişkenleri sabit tutarak oda sıcaklığı ile bağıl nemin PMV ve enerji sarfiyatına etkisini Çin'deki beş farklı iklimdeki, altı şehire göre incelemiştir. Oda hava sıcaklığının ortalama 1˚C artmasıyla, aynı bağıl nem koşullarında, enerji tüketiminde %5,2 -6,2 aralığında azalma gerceklistigini görmüşlerdir.…”

Section: Gi̇ri̇ş (Introduction)unclassified

Işınım soğutma sistemlerindeki yoğuşma probleminin çözümüne yönelik yeni bir yöntem ve ısıl konfor incelemesi

Koca¹

2018

Gazi Üniversitesi Mühendislik Mimarlık Fakültesi Dergisi

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Energy performance of air cooling systems considering indoor temperature and relative humidity in different climate zones in China

Cited by 26 publications

References 20 publications

Evaluasi Termal Vertical Greenery System Tipe Green Facade pada Dinding Bangunan

Evaluasi Termal Vertical Greenery System Tipe Green Facade pada Dinding Bangunan

An efficient climate index for reflecting cooling energy consumption: Cooling degree days based on wet bulb temperature

Işınım soğutma sistemlerindeki yoğuşma probleminin çözümüne yönelik yeni bir yöntem ve ısıl konfor incelemesi

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