Coordinating to promote refrigerant transition and energy efficiency improvement of room air conditioners in China: Mitigation potential and costs

Jiang, Pengnan; Li, Yixi; Bai, Fuli; Zhao, Xingchen; An, Minde; Hu, Jianxin

doi:10.1016/j.jclepro.2022.134916

Cited by 7 publications

(2 citation statements)

References 22 publications

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“…Although air conditioning (AC) currently consumes approximately 57% of the electricity in buildings globally, a threetime increase is forecasted for the coming years [5,6]. However, with the implementation of EE standards, improvements in building design, enhanced AC technologies, and better monitoring and proper energy management, it is estimated that it would be possible to improve the energy performance of air conditioning systems by approximately 50% by 2030 [7,8].…”

Section: Introductionmentioning

confidence: 99%

Energy Performance of a University Building for Different Air Conditioning (AC) Technologies: A Case Study

Balbis-Morejón,

Cabello-Eras,

Rey-Martínez

et al. 2024

Buildings

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The study uses four AC technologies to assess the energy performance—this is a case study of an educational building in Barranquilla, Colombia. The building currently has split AC technology high-energy consumers. Therefore, it was necessary to assess a replacement with more efficient technology. Because of the non-seasonal climate in the building location, one month of monitoring of energy consumption was the reference for developing an energy model for the building using EnergyPlus and DesignBuilder software. The model was applied to forecast the building energy performance of our more efficient AC technologies available in the Colombian market, and valuable according to building specifications (Split, VRF, VAV, and Chiller). Results show a reduction in energy consumption of approximately 30% with the technology change and 15% savings in life cycle costs (LCCs), even though the building is already considered to have a low energy consumption according to national regulations. The findings of this study underscore the potential for widespread applicability across all types of buildings, regardless of their energy consumption profile, be it low, medium, or high. This extensive applicability not only highlights the adaptability and versatility of the technology but also underscores its significance in achieving substantial energy savings and cost reductions across the entire building industry, contributing to a more sustainable and economically efficient future.

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Section: Introductionmentioning

confidence: 99%

Energy Performance of a University Building for Different Air Conditioning (AC) Technologies: A Case Study

Balbis-Morejón,

Cabello-Eras,

Rey-Martínez

et al. 2024

Buildings

View full text Add to dashboard Cite

show abstract

“…Considering the HFC emission trends and their considerable mitigation potential, the specific targets for China’s HFC mitigation need to be clarified, and the emission reductions should be strengthened to comply with the 1.5 °C targets of the Paris Agreement and China’s goal of carbon neutrality by 2060. For China, previous studies mainly focused on HFC emission projections and abatement cost estimates within certain sectors, namely room air conditioning, − mobile air conditioning, and HCFC-22 production (HFC-23 byproduct) sectors. An integrated and comprehensive analysis of HFC emissions, climate effects, and abatement costs for all sectors should be conducted to evaluate the accelerated or optimized HFC phase-down or even phase-out overall pathway.…”

Section: Introductionmentioning

confidence: 99%

Pathway and Cost-Benefit Analysis to Achieve China’s Zero Hydrofluorocarbon Emissions

Bai

et al. 2023

Environ. Sci. Technol.

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Global hydrofluorocarbon (HFC) cumulative emissions will be more than 20 Gt CO2-equiv during 2020–2060 and have a non-negligible impact on global warming even in full compliance with the Kigali Amendment (KA). Fluorochemical manufacturers (including multinationals) in China have accounted for about 70% of global HFC production since 2015, of which about 60% is emitted outside China. This study built an integrated model (i.e., DECAF) to estimate both territorial and exported emissions of China under three scenarios and assess the corresponding climate effects as well as abatement costs. Achieving near-zero territorial emissions by 2060 could avoid 23 ± 4 Gt CO2-equiv of cumulative territorial emissions (compared to the 2019 Baseline scenario) during 2020–2060 at an average abatement cost of 9 ± 6 USD/t CO2-equiv. Under the near-zero emission (including territorial and abroad) pathway, radiative forcing from HFCs will peak in 2037 (60 ± 6 mW/m2) with a 33% peak reduction and 8 years in advance compared to the path regulated by the KA, and the radiative forcing by 2060 will be lower than that in 2019. Accelerated phase-out of HFC production in China could provide a possibility for rapid global HFC abatement and achieve greater climate benefits.

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Call for multi-policy approach: Synergistic effects of emissions trading scheme and energy efficiency policies

Wen,

Jia

2024

Journal of Environmental Management

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Coordinating to promote refrigerant transition and energy efficiency improvement of room air conditioners in China: Mitigation potential and costs

Cited by 7 publications

References 22 publications

Energy Performance of a University Building for Different Air Conditioning (AC) Technologies: A Case Study

Energy Performance of a University Building for Different Air Conditioning (AC) Technologies: A Case Study

Pathway and Cost-Benefit Analysis to Achieve China’s Zero Hydrofluorocarbon Emissions

Call for multi-policy approach: Synergistic effects of emissions trading scheme and energy efficiency policies

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