Do more efficient buildings lead to lower household energy consumption for cooling? Evidence from Guangzhou, China

Yu, Lu; Wu, Shuang; Jiang, Lu; Ding, Bowenpeng; Shi, Xiaonan

doi:10.1016/j.enpol.2022.113119

Cited by 24 publications

(4 citation statements)

References 57 publications

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“…A longer building time indicates poor thermal performance, which results in higher electricity consumption. This is consistent with the findings of Yu and Gu’s study [ 16 , 44 ]. There is a significant impact of floor space on carbon emissions in terms of area.…”

Section: Discussionsupporting

confidence: 94%

Influencing Factors of Direct Carbon Emissions of Households in Urban Villages in Guangzhou, China

Chen

Jiang

2022

IJERPH

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China’s household energy consumption has obvious regional differences, and rising income levels and urbanization have changed the ability of households to make energy consumption choices. In this paper, we analyze the energy consumption characteristics of urban village residents based on microlevel household survey data from urban villages in Guangzhou, China. Then, the results of modeling the material flows of per capita carbon emissions show the most dominant type of energy consumption. OLS is applied to analyze the influencing factors of carbon emissions. We find that the per capita household carbon emissions in urban villages are 722.7 kg/household.year, and the average household carbon emissions are 2820.57 kg/household.year. We also find that household characteristics, household size, household appliance numbers, and carbon emissions have a significant positive correlation, while income has no significant effect on carbon emissions. What is more, the size and age of the house have a positive impact on carbon emissions. Otherwise, the new finding is the demonstration that income is not significantly correlated with household carbon emissions, which is consistent with the characteristics of urban villages described earlier. On the basis of this study, we propose more specific recommendations regarding household energy carbon emissions in urban villages.

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Section: Discussionsupporting

confidence: 94%

Influencing Factors of Direct Carbon Emissions of Households in Urban Villages in Guangzhou, China

Chen

Jiang

2022

IJERPH

Self Cite

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“…Nevertheless, it is one of the contexts where there is the greatest margin of difficulty for the implementation of efficient energy strategies. The difficulties relate to a series of elements such as buildings that do have not modern structures and are difficult to maintain and innovate (Yu et al, 2022). It should also not be forgotten that an improvement in energy efficiency must not necessarily result only in an economic advantage detectable in the bill, but can also be used to increase thermo-hygrometric well-being and the health of the environment, all the more reason given the very purpose of the buildings under consideration and the particular condition in which its users are located.…”

Section: Introductionmentioning

confidence: 99%

Digital innovation government: organizational and energy analysis in Italian hospitals

Mencet¹,

Gabdyssalyk²

2023

JESI

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Analyzing the complex structures of 1062 Italian hospitals, the present research aims at evaluating the performance relating to the sustainable energy management. The monitoring activities were carried out both to analyze the building and structural context and to analyze the energy consumption of Italian hospitals during the period 2016-2022. Furthermore, the paper elaborates a comparative analysis the other European countries, highlighting how is possible to improve the energy efficiency of Italian hospitals. The energy analysis concerned the breakdown of electricity consumption, analysis of the consumption of the last six years derived from the monthly bills of hospitals, the consumption now, distribution of electricity consumption, and air conditioning needs; the organizational analysis concerned the plant characteristics of the structure, the age of the building and building maintenance over the last 6 years. In the discussion, possible solutions emerge, operational interventions, to make the energy management of hospitals, more efficient. The presence of different services provided highlight different profiles of energy consumption linked to two main categories: hotel-type consumption for the well-being of patients and staff and consumption more closely related to health functions supported by treatment and diagnosis equipment. In recent years, numerous opportunities for energy upgrading of buildings have not been implemented by creating energy profiles of obsolete and inefficient hospital facilities. In this context, the role of the energy manager and the presence of structures dedicated to energy management emerge as the main bottlenecks for achieving better energy efficiency. After the introduction, the paper elaborates a conceptual background focused on sustainable energy management. The section 3 show the methodology applied, the main results are included in section 4 and the discussion section have been developed in section 5. Finally, the conclusion highlights that the sustainable energy management is an open question and the output of discussion linked to the research suggest that the hospitals' energy efficiency must be seen as under constant development and re-interpretation.

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“…Space heating and cooling account for more than one third of the total energy consumption of buildings. It is estimated that building cooling energy consumption will increase by 300% to 600% in developing countries by 2050 [6,7]. Therefore, reducing space cooling is the best way to optimize building energy use patterns.…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation of Thermal Performance of Micro-PCM Cement Mortar Composite Wall

Hou

Wang

2023

cear

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In order to give full play to the effect of temperature regulation and energy saving of the phase change wall, the cement mortar mixed with phase change microcapsules was coated on the surface of the wall to form the phase change energy storage wall. Considering the thermal response of the temperature inside the wall, the heat transfer theoretical model of the phase change energy storage wall was established. The heat transfer process in the phase change energy storage wall and the temperature change inside the wall. The calculation results show that the content of phase change microcapsules in the phase change energy storage wall is one of the important factors affecting the temperature attenuation of the inner side of the wall. The peak time of the temperature change response curve on the inner side of the phase change wall is lagging behind that of the conventional wall, and the existence of the highest temperature is also lower, the peak temperature fluctuation is also lower, and the heat flow is reduced. It can be seen that the introduction of phase change microcapsules into the wall can achieve the purpose of reducing the temperature inside the wall and reducing the capacity of the air conditioning and refrigeration system of the building, which provides a good way to reduce the energy consumption and cost of building refrigeration.

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Do more efficient buildings lead to lower household energy consumption for cooling? Evidence from Guangzhou, China

Cited by 24 publications

References 57 publications

Influencing Factors of Direct Carbon Emissions of Households in Urban Villages in Guangzhou, China

Influencing Factors of Direct Carbon Emissions of Households in Urban Villages in Guangzhou, China

Digital innovation government: organizational and energy analysis in Italian hospitals

Numerical Simulation of Thermal Performance of Micro-PCM Cement Mortar Composite Wall

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