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<p>The Chinese solar greenhouse (CSG) is a prevalent feature in agricultural practices within China. Nevertheless, the regulation of natural ventilation within this architectural structure remains suboptimal. Consequently, the development of a natural ventilation model becomes imperative for the effective management of the greenhouse environment. Of particular significance within
In this review, an overview of China''s progress towards the development of modern solar greenhouses, as well as the attempts to mitigate the effects of heat loss,
effect of solar geothermal heating system on soil temperature in the solar greenhouse. Journal of Shengyang Agricultural University, 2010; 41(2): 190–194.(in Chinese) Li Z X, Zhou C J. Design and test of seedbed hating system based on capillary network in solar greenhouse. Journal of China Agricultural University, 2017; 22(2): 123–128
PDF | On Dec 3, 2020, Yachen Sun and others published Effects of window opening style on inside environment of solar greenhouse based on CFD simulation | Find, read and cite all the research you
1. Introduction. The Chinese solar greenhouse (CSG) is a greenhouse that can operate year-round without heating equipment. It relies on the north wall to store heat
In order to optimize the heat preservation capacity of Chinese solar greenhouse (CSG) and further reduce energy consumption, we clarified the mechanism of the external thermal insulation layer
The food crisis has increased demand for agricultural resources due to various factors such as extreme weather, energy crises, and conflicts. A solar greenhouse enables counter-seasonal winter cultivation due to its
A Chinese solar greenhouse (CSG) is a horticultural facility that uses solar energy to promote a growth environment for crops and provides high-efficiency thermal storage performance to meet the
A solar greenhouse enables counter-seasonal winter cultivation due to its thermal insulation, thus alleviating the food crisis. The root temperature is of critical importance, although the mechanism of soil thermal environment
To maximize the use of solar energy and increase the building area of solar greenhouses in China, a light radiation model for solar greenhouses is established. Study on curve optimization and structural safety effect of south roof of solar greenhouse in China R Soc Open Sci. 2024 May 8;11(5):240352. doi: 10.1098/rsos.240352.
In order to further improve the utilization of solar energy in Chinese Solar Greenhouse (CSG), this paper systematically studied the effects of orientation and structure on solar radiation
Zhang et al. / Building Simulation / Vol. 17, No. 9 1542 List of symbols A area (m2) C d discharge coefficient of the vent (—) C p pressure coefficient (—) C p,out C p of the exterior of the opening (—) C p,in C p of the interior of the opening (—) H height of the greenhouse (m) H o height of the opening (m) h position height of lower vent (m) I length of the greenhouse (m)
To explore the effect of greenhouse orientation on the spatial distribution of light, Li T. Theory and Practice of Vegetable Cultivation in Solar Greenhouse. China Agriculture Press, Beijing: 2013. [Google Scholar] 30. El-Maghlany WM. A novel analytical solution for the transmissivity of curved transparent surfaces with application to solar
Due to cost limitations of greenhouses, most greenhouses in Northeast China are single slope sunlight greenhouses, and the temperature inside the sunlight greenhouses is an impor- tant indicator
A sunken solar greenhouse is a unique structure used in China that has good thermal performance and a low cost. To explore the thermal environment and the marginal effect area under the trellis membrane in a sunken solar greenhouse, daytime heat absorption and nighttime exothermic models of the greenhouse were established based on existing theories and
China has been a global leader in energy-efficient solar greenhouse technology thanks to its incredibly low energy input since its inception. This energy-efficient facility provides an important pathway for the sustainable development of agriculture. A comprehensive explanation of the design principles, development process, and production practice effects of energy-efficient
This study takes the widely used Liao-Shen type Chinese Solar Greenhouse (CSG-LS) as the prototype. The greenhouse is located in Shenyang Agriculture University, Liaoning Province, China (41.8˚N, 123.4˚E). Liaoning province is the birthplace of Liao-Shen type Chinese solar greenhouse. The structural parameters of CSG-LS are shown in Table 1.
This greenhouse, known as the Chinese sunken solar greenhouses, are widely used in China''s Shandong, Hebei provinces and northwest regions Analysis of the long-term effects of solar radiation on the indoor thermal comfort in office buildings. Energy, 247 (2022), 10.1016/j.energy.2022.123499.
Changes in China''s energy structure. a-c shows the proportion of thermal, solar, and other energy sources to total energy in each province of China; d-f refers to the thermal power generation of China''s provinces in 2015, 2020, and 2025; h-j refers to the solar power generation of China''s provinces in 2015, 2020, and 2025; k-m refers to the
Specifically, the extent of solar greenhouse application in Liaoning and Shandong provinces far exceeds that of other provinces in the region. In contrast, although the northwest region covers an area of 42.3 % of China ''s total area. (Xinjiang, Tibet, Qinghai and Gansu), it accounts for less than 11.9 % of the total greenhouse application.
Emission rates, especially for GHG (Greenhouse Gas), are one of the key concerns when environmental effects are mentioned. Harder and Gibson (2011) indicated that there is a potential replacement of 24.4 GWh of conventional thermal power production annually with the construction of each 10 MW PV power plant built, saving 10,732 tons of CO 2 in Abu
1. Introduction. The Chinese solar greenhouse (CSG) is a greenhouse that can operate year-round without heating equipment. It relies on the north wall to store heat during the day and on the external insulation to maintain the indoor temperature at night, making it widely used in the cold areas of northern China [1,2].As an eco-friendly and sustainable energy
In conclusion, although scholars from China and abroad have widely explored the effectiveness and application of active solar heating soil heat storage systems in greenhouses in different regions, there is still a scarcity of studies exploring the application of active solar heating soil heat storage systems in the specific environment of GSGs and their specific
With the continuous use of resources, solar energy is expected to be the most used sustainable energy. To improve the solar energy efficiency in Chinese Solar Greenhouses (CSG), the effect of CSG
The structure of the experimental Chinese solar greenhouse (CSG) consisting of a transparent south roof covered with plastic film, a north wall, and an opaque and insulated north roof and sidewalls.
A new report from China touts the benefits of solar greenhouses as having the potential to solve the world''s energy crisis and climate change.
China''s solar greenhouses allow farmers to effectively control the environment and play a crucial role in the counter-seasonal cultivation of vegetables . Tomatoes
Greenhouse necessitates a substantial amount of solar energy to sustain its thermal environment. The design and construction of solar greenhouses are closely tied to
In mordern farming, greenhouse cultivation plays an important role in ensuring food security, as well as the quality and efficiency of agricultural products (Forkuor et al., 2022) 2019, global greenhouse infrastructure spanned 1.3 million hectares, with China representing 60.4% of this area (Tong et al., 2024), predominantly in the form of solar greenhouses in northern regions.
This study pioneered a heating strategy that integrates SAH energy with geothermal energy within greenhouses designed to enhance solar energy utilization efficiency
Introduction. In recent years, crop production in Chinese solar greenhouse (CSG) has become the most profitable agricultural industry, which has made a historic contribution to the supply of vegetables and fruits in the cold regions of northern China [1, 2].As the most important energy source in CSG production, sunlight is not only the fundamental
This study analyzed the factors influencing the marginal effect of air temperature in solar greenhouses, defined solar greenhouses to determine the marginal effect area under the screen, and provided theoretical and data
The greenhouse was sealed to avoid the effects of airflow. The experiments were conducted on 23 January 2020, which represented severe winter. Figure 1a
The most obvious obstacles of China''s modern solar greenhouse are characterized by the poor heating-preserving performance (of solar thermal greenhouse) and the shadowing effect (of PV greenhouse), and a series of advanced solar utilization technologies to mitigate the effects of heat loss, shadowing, and poor light condition for applicable integration
Over the course of China''s 40-year solar greenhouse development project, our team has consistently improved the greenhouse''s structure and put forth three different designs for solar greenhouses. With a maximum indoor and outdoor temperature difference of 35 °C and a minimum nighttime temperature of more than 10 °C , , the TGEESG''s performance has
solar panel greenhouse utilize sun energy to transfer power for greenhouse use. Photovoltaic power generation is a technology that uses the photovoltaic effect of the semiconductor
To maximize the use of solar energy and increase the building area of solar greenhouses in China, a light radiation model for solar greenhouses is established. This model
According to 2021 statistics, solar greenhouses in China covered up to 1.96 million ha Nevertheless, sunny and cloudy days have a different effect on greenhouse climate.
1. Introduction China's solar greenhouses allow farmers to effectively control the environment and play a crucial role in the counter-seasonal cultivation of vegetables . Tomatoes (Solanum lycopersicum L.) are rich in lycopene, vitamin C and other nutrients, thereby making them one of the main vegetables grown in solar greenhouses .
Conclusion Modern solar greenhouse is an important initiative in China's protected cultivation history for it benefits in energy saving, pollution reduction, and comprehensive competitiveness of modern agriculture improvement, especially in this low carbon production era.
The greenhouse optimizing strategy combined lighting, heat storage and safety. The average solar radiation and temperature increased by 5.4 MJ m −2 and 3.1 °C. The cost of optimizing Chinese solar greenhouse can be repaid in 1.6 years. The proposed framework can be applied to solar greenhouses at any latitude.
There are also some other solar thermal greenhouses that have been applied in China's Beijing, Gansu, Xizang, etc. These greenhouses utilize heat-absorbing solar collectors accessed with circulation tubes to heat water for night space heating purpose.
3.2. Economic evaluation The economic evaluation including the cost, operating income and the payback time of the combined agriculture and solar system sectors is conducted to assess the potential of the application of modern solar greenhouses in China.
The cost of optimizing Chinese solar greenhouse can be repaid in 1.6 years. The proposed framework can be applied to solar greenhouses at any latitude. Given the aging of greenhouse facility, there is a need for investigating the transformation of existing greenhouses to maximize solar energy utilization.