Environmental and Economic Analysis of Heating Solutions for Rural Residences in China

Zhang, Zhenying; Wang, Jiaqi; Yang, Meiyuan; Gong, Kai; Yang, Ming

doi:10.3390/su14095117

Cited by 3 publications

(1 citation statement)

References 29 publications

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“…Banks et al [28] reported the results of their research on heat-pump water-heating systems. Of interest is the research conducted by Zhang et al [29], which compares the primary energy consumption, environmental impact, and heating costs of coal-fired and wall-fired gas boiler heating systems, direct electric heating systems, and air-source heat pump systems using a life cycle analysis. The study by AlAli et al [30] exclusively focused on the United Arab Emirates and examined the energy efficiency of mosque buildings.…”

Section: The Literature Reviewmentioning

confidence: 99%

Primary Energy Resources and Environmental Impacts of Various Heating Systems Based on Life Cycle Assessment

Mannheim,

Nehéz,

Brbhan

et al. 2023

Energies

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This paper utilizes a life cycle assessment (LCA) to evaluate three heating systems’ energy resources and environmental impacts. The first system uses an electric heat pump that exclusively relies on geothermal energy. The second system operates on a gas boiler system that utilizes non-renewable electricity and natural gas. Lastly, the third system incorporates an absorption heat pump utilizing geothermal energy and natural gas. In the first step, cradle-to-gate assessments were prepared for the renewable, conventional, and mixed systems. The second step involved comparing the system scenarios based on their loads and energy resources. Primary energy, material resources, emissions, and impact categories were normalized and weighted using the CML, ReCiPe, and EF 3.0 methods. Finally, models for environmental reliability and complex decision support were developed. The novelty of this research lies in analyzing the ecological burden and energy usage of a mixed energy system that incorporates both renewable and non-renewable energy sources. The results show that the gas boiler system has a higher load, primarily due to the depletion of abiotic fossil fuels. However, the acidification is higher when an electric heat pump is used. The absorption heat pump system falls between the renewable and conventional systems in terms of both fossil depletion and acidification.

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Section: The Literature Reviewmentioning

confidence: 99%

Primary Energy Resources and Environmental Impacts of Various Heating Systems Based on Life Cycle Assessment

Mannheim,

Nehéz,

Brbhan

et al. 2023

Energies

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Energy Resources and Environmental Impacts of Heating Systems

Mannheim,

Nehéz,

Brbhan

et al. 2023

Preprint

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This paper utilizes a life cycle assessment to evaluate the energy resources and environmental impacts of three heating systems. In the first step, life cycle assessments (LCAs) are prepared for the renewable, conventional, and combined systems. The system boundary of the LCA method is "cradle to gate," which means it includes the entire life cycle of a product or process. This includes energy supply, transport, energy generation, and operational energy use. The system scenarios were compared based on ecological and energy loads in the second step. Primary energy, resources, emissions, and environmental potentials are calculated for the system scenarios using the life cycle assessment methods CML 2016 and ReCiPe 2016. Finally, models for environmental reliability and complex decision-support tools have been developed. This work addresses two main questions: how to characterize the environmental and energy impacts of the systems under study, and what is the optimal scenario for the system? The research results show that the gas boiler system has a greater environmental impact. The most significant differences between the systems relate to the degrada-tion of abiotic fossil fuels when using a gas boiler and the process of acidification when using an electric heat pump. The results can be used to develop sustainable heating systems with reduced environmental impacts and enhanced energy efficiency.

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Alternative Heating, Ventilation, and Air Conditioning (HVAC) System Considerations for Reducing Energy Use and Emissions in Egg Industries in Temperate and Continental Climates: A Systematic Review of Current Systems, Insights, and Future Directions

Vanbaelinghem,

Costantino,

Grassauer

et al. 2024

Sustainability

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Egg production is amongst the most rapidly expanding livestock sectors worldwide. A large share of non-renewable energy use in egg production is due to the operation of heating, ventilation, and air conditioning (HVAC) systems. Reducing energy use, therefore, is essential to decreasing the environmental impacts of intensive egg production. This review identifies market-ready alternatives (such as heat pumps and earth–air heat exchangers) to traditional HVAC systems that could be applied in the industrial egg sector, specifically focusing on their use in temperate and continental climates. For this analysis, energy simulations were run to estimate the typical thermal loads of caged and free-run poultry housing systems in various Canadian locations, which were used as examples of temperate and continental climates. These estimations were then used to evaluate alternative HVAC systems for (1) their capability to meet the energy demands of egg production facilities, (2) their environmental impact mitigation potential, and (3) their relative affordability by considering the insights from a systematic review of 225 relevant papers. The results highlighted that future research should prioritize earth–air heat exchangers as a complementary system and ground source heat pumps as a stand-alone system to reduce the impacts associated with conventional HVAC system operation in egg production.

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Environmental and Economic Analysis of Heating Solutions for Rural Residences in China

Cited by 3 publications

References 29 publications

Primary Energy Resources and Environmental Impacts of Various Heating Systems Based on Life Cycle Assessment

Primary Energy Resources and Environmental Impacts of Various Heating Systems Based on Life Cycle Assessment

Energy Resources and Environmental Impacts of Heating Systems

Alternative Heating, Ventilation, and Air Conditioning (HVAC) System Considerations for Reducing Energy Use and Emissions in Egg Industries in Temperate and Continental Climates: A Systematic Review of Current Systems, Insights, and Future Directions

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