Energy, exergy, and economic analysis of a centralized solar and biogas hybrid heating system for rural areas

Chen, Yaowen; Guo, Mengmeng; Liu, Yanfeng; Wang, Dengjia; Zhuang, Zhaoben; Quan, Mengchen

doi:10.1016/j.enconman.2022.116591

Cited by 38 publications

(4 citation statements)

References 45 publications

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“…A 6cubic small biogas digester can alone maintain the energy consumption for a year for a family of five people. Biogas technology is one of the biomass energy technologies (Chen et al, 2023). At present, our household biogas technology is basically mature, and increasingly perfect, with its popularity rate rapidly.…”

Section: ) Rural Biogas Energymentioning

confidence: 99%

Energy development in rural China toward a clean energy system: utilization status, co-benefit mechanism, and countermeasures

Yin,

Zhao

2023

Front. Energy Res.

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In order to promote the construction of a clean, low-carbon, and diversified modern rural new energy system, this study examines the development, utilization, connection, and system construction of rural new energy in China. This is done through the classification, integration, and systematic analysis of official statistical data and materials from recent years. Utilizing descriptive statistical analysis, the study holds great theoretical and practical significance. The findings indicate the following: 1) overall, the development of new energy in China’s rural areas is progressing well. However, there is an increasing contradiction between supply and consumption. 2) The new energy industry is experiencing overall growth, accompanied by increasing policy support. Despite this, the industry’s driving effect is not substantial. 3) The development of new energy production equipment in rural areas is lagging, resulting in insufficient cleanliness of energy consumption. There is still a significant gap compared to the goal requirements of agricultural and rural modernization. 4) During the process of rural new energy connection and development, there exists a lack of strong connections between the various subjects of interest. The interest relationship is consequently unstable, necessitating the improvement of a closely-knit interest community. Taking the issue of rural new energy development as its starting point, this paper thoroughly explores the mechanisms driving rural new energy connection. It delves into the interest relationship between the different stakeholders and provides guidelines for optimizing rural new energy system construction. Ultimately, this research aims to contribute to rural revitalization, facilitate the realization of the “double carbon” goal, and establish a modern rural new energy system.

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Section: ) Rural Biogas Energymentioning

confidence: 99%

Energy development in rural China toward a clean energy system: utilization status, co-benefit mechanism, and countermeasures

Yin,

Zhao

2023

Front. Energy Res.

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“…In total, 192 building stock transformation scenarios were created for an exemplary case study of the German city of Karlsruhe. Y. Chen et al [16] established an energy and exergy analysis based on a mathematical model of a solar and biogas hybrid heating system using a MATLAB/Simulink platform and proposed a corresponding operation control strategy for it. In addition, they calculated its energy and exergy.…”

Section: Literature Reviewmentioning

confidence: 99%

Development of a Heat Consumption Model Group and Analysis of Economic Adjustments and Carbon Reduction Efforts in Centralized Heating Upgrades in the Beijing Urban–Rural Fringe

et al. 2023

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Large-scale clean-heating renovations are being carried out in northern China as part of important measures to optimize energy infrastructure, improve the atmospheric environment, and minimize peak CO2 emissions. Because rural areas in the urban–rural fringe are close to the city center, they have several advantages in centralized heating reforms, but there are no effective means to measure whether a transformation is economical or has good environmental effects. In this paper, based on an actual reconstruction project, 100 typical households were selected for a related test. These typical households evinced convergence and possessed certain regional characteristics; therefore, the applicability of the models had certain limitations. To make sure that the relevant factors were fully considered in establishing the model, a prediction model group was established regarding heat consumption in winter (four models in total) that could predict the actual effect well. Lastly, the authors used the model group to calculate economic effects and CO2 emission reduction in rural heating transformations in Beijing under different heating methods.

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“…One of the most important renewable energies is solar energy, which is converted into usable electrical energy through the utilization of solar panels. The analysis of energy and exergy parameters of solar panels serves as an initial step in the advancement of this technology, establishing an appropriate standard for measuring the performance of solar panels [3,4]. Energy analysis is based on the first law of thermodynamics, and exergy analysis is based on the second law of thermodynamics.…”

Section: Introductionmentioning

confidence: 99%

Performance Enhancement of Photovoltaic-Thermal Modules Using a New Environmentally Friendly Paraffin Wax and Red Wine-rGO/H2O Nanofluid

et al. 2023

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Photovoltaic/thermal systems are one of the most efficient types of solar collectors because they absorb solar radiation and generate electricity and heat simultaneously. For the first time, this paper presents an investigation into the impact of red wine-rGO/H2O nanofluid and paraffin wax on the thermohydraulic properties of a photovoltaic/thermal system. The study focuses on three innovative nonlinear arrangements of the serpentine tubes. The effects of these materials and configurations are analyzed through numerical simulations. To improve the performance, environmentally friendly materials, including red wine-rGO/H2O nanofluid and paraffin wax, have been used. Various performative parameters such as electrical and thermal efficiency of the photovoltaic/thermal system, exergy, and nanofluid concentration were investigated. The results demonstrated a significant enhancement in the system’s performance when using innovative serpentine tubes instead of simple tubes for the fluid flow path. The use of paraffin C18 increases electrical efficiency, while the use of paraffin C22 improves thermal efficiency. Moreover, the incorporation of phase change materials along with the utilization of innovative geometries in the serpentine tube led to a notable improvement in the outlet temperature of the fluid, increasing it by 2.43 K. Simultaneously, it substantially reduced the temperature of the photovoltaic cells, lowering it by 21.55 K. In addition, the new model demonstrated significant improvements in both thermal and electrical efficiency compared to the simple model. Specifically, the maximum thermal efficiency improvement reached 69.2%, while the maximum electrical efficiency improvement reached 11.7%.

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Energy, exergy, and economic analysis of a centralized solar and biogas hybrid heating system for rural areas

Cited by 38 publications

References 45 publications

Energy development in rural China toward a clean energy system: utilization status, co-benefit mechanism, and countermeasures

Energy development in rural China toward a clean energy system: utilization status, co-benefit mechanism, and countermeasures

Development of a Heat Consumption Model Group and Analysis of Economic Adjustments and Carbon Reduction Efforts in Centralized Heating Upgrades in the Beijing Urban–Rural Fringe

Performance Enhancement of Photovoltaic-Thermal Modules Using a New Environmentally Friendly Paraffin Wax and Red Wine-rGO/H2O Nanofluid

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