The impacts of solar radiation on indoor thermal comfort are growing with the popularity of curtain walls in modern constructions. In order to accurately assess indoor thermal comfort under global solar radiation, a previous study proposed a corrected predicted mean vote with global solar radiation (CPMV*) and validated the model in …
Learn MoreAccurate observations of long-term surface solar radiation (SSR) are crucial for hydrological processes, agricultural production, and photovoltaic power …
Learn MoreSynergistic modulation of solar and thermal radiation for energy-efficient dynamic windows is realized by mechano-responsive sequence photonic structures, which can achieve broad ranges up to 55% in solar transmittance and 25% in mid-infrared thermal emittance. ... China (Fig. 1 b). The city has a monsoon-influenced humid continental …
Learn MoreSolar photovoltaics is a direct use of solar resources to generate electricity, which is one of the most important renewable energy application approaches. Regional PV output could be affected by the regional patterns of temperature and irradiance, which are impacted by climate change. This study examines the impact of climate change on the …
Learn MoreWe projected incident surface solar radiation (SSR) over China in the middle (2040–2059) and end (2080–2099) of the 21st century in the Representative Concentration Pathway (RCP) 8.5 scenario ...
Learn MoreThe solar incidence on an indoor environment and its occupants has significant impacts on indoor thermal comfort. It can bring favorable passive solar heating and can result in undesired overheating (even in winter). This problem becomes more critical for high altitudes with high intensity of solar irradiance, while received limited attention. In …
Learn MoreHomogeneous observations show a recent transition to brightening in direct radiation and to dimming in diffuse radiation over …
Learn MoreThe surface solar radiation effect on maximum temperature is especially significant on the Yunnan-Guizhou Plateau located in the south-southwest. The phase of maximum temperature adjusted for solar radiation for the Plateau is similar to South China at the same latitude and later than the raw maximum temperature.
Learn MoreChina has abundant solar energy resources. It is estimated that the dry land surfaces of China receive solar energy about 50×10 12 GJ/yr. The solar radiation in China ranges from 3.35 to 8.37 GJ/ m 2 yr and can be divided into five zones as listed in Table 1.The main characteristics of the regional distribution of solar energy resources are as …
Learn MoreIn 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 interception in CSG. A solar radiation model has been developed based on the previous research, which taking solar motion law, …
Learn MoreBy contrast, surface solar radiation (SSR) in West China was also greatly influenced by the elevated dust/smoke layers, revealed by aerosol layer vertical distribution and the reduction of SSR and PM 2.5 concentrations. This study highlighted the importance of aerosol optical properties and vertical structures in aerosol–radiation interactions.
Learn MoreChina''s solar thermal utilization was equivalent to 72.31 Mtce/year of coal or 337.631 GW th of electricity (China Solar Thermal Alliance n.d.-a, b). The development of traditional solar thermal utilization, however, has stagnated since 2015 as the market for solar water heaters has not expanded (see Figs. 7.7 and 7.8).
Learn MoreSolar radiation is a crucial parameter that affects the thermal environment in buildings. The spatial and temporal distributions of solar radiation data are important for energy-efficient building design. ... We used data acquired between 2001 and 2016 from 98 solar radiation measurement stations in China to verify two satellite-derived ...
Learn MoreAbstract Surface incident solar radiation (Rs) is important for providing essential information on climate change. Existing studies have shown that the Rs values from current reanalyses are significantly overestimated throughout China. The European Centre for Medium-Range Weather Forecasts (ECMWF) recently released the fifth …
Learn MoreThe DGSR measurements used in this study are from the National Meteorological Information Center, China Meteorological Administration. The data set contains daily mean global solar radiation, diffuse solar radiation, and horizontal direct solar radiation from 130 stations (including replacement stations) in mainland China …
Learn MoreTo accurately provide a basis for the use of solar energy in mainland China, the optimized empirical model is adopted to analyze the variation trends and …
Learn MoreBased on observations from 2,379 meteorological stations along with scare solar radiation observations, the random forest (RF) model is employed to construct a high-density network of daily global solar radiation (DGSR) …
Learn MoreThe average surface solar radiation (SSR) series over China in 1971–2016 derived from the SSR data at 56 stations analyzed in this study. The aging equipment (1971–1989), replacement instrument (1990–1993) and without human interference (1994–2016) periods are represented by red, blue and black lines, respectively.
Learn MoreNomenclature. H tvh, 1 min. total value of global south solar radiation on horizontal surface in the coldest month, W⋅m −2. H ¯ tvs, 1 min. total value of daily mean global solar radiation on south surface in the coldest month, W⋅m −2. H N, hp. cumulative hourly global solar radiation value for the heating period, W⋅m −2. T a. indoor base …
Learn MoreSolar thermal electricity power system is a device which uses solar radiation for the generation of electricity through the solar thermal conversion (Xiao et al., 2004). Solar thermal electricity ...
Learn MoreRequest PDF | Country-level evaluation of solar radiation data sets using ground measurements in China | Solar radiation is a crucial parameter that affects the thermal environment in buildings.
Learn MoreWe projected incident surface solar radiation (SSR) over China in the middle (2040–2059) and end (2080–2099) of the 21st century in the Representative Concentration Pathway …
Learn MoreIn China, the current rural population is almost 737 million, accounting for 56% of the country''s entire population. ... Solar thermal radiation mainly means that the outer wall of the wall relies on solar thermal radiation to heat the room to raise the temperature of the room. The heat transfer process is as follows: the first step is the ...
Learn More1. Introduction. Ultraviolet (UV) radiation refers to the Solar Downward Surface Shortwave Radiation (DSSR) with the wavelength range of 100 nm–400 nm (Gueymard, 2004; Lucas et al., 2019).Although comprising a small fraction (approximately 8%) of the total solar radiation, UV radiation has significant influences on ecosystems, …
Learn MoreAbstract Surface incident solar radiation (Rs) is important for providing essential information on climate change. Existing studies have shown that the Rs values from current reanalyses are significantly …
Learn MoreSolar radiation information is an indispensable parameter in analyzing solar generation. Jiang et al . presented a twelve-year (2007–2018) hourly dataset with 5-km resolution of surface and ...
Learn MoreBased on daily meteorological data collected at 71 meteorological stations in Northeast China, trends at multi-temporal scales (decadal, annual, monthly, and 10-day) and spatial patterns of heat …
Learn MoreChina has abundant solar energy resources, mainly distributed in the arid regions of plateau and the Western China [7, p. 3].The annual average radiation level is 1050–2450 kW h/m 2 in these regions with 96% of area over 1050 kW h/m 2 [17, p. 36]. Fig. 1 describes the distribution of total solar radiation on the horizontal surface in China. It …
Learn MoreAbstract. We projected incident surface solar radiation (SSR) over China in the middle (2040–2059) and end (2080–2099) of the 21st century in the Representative Concentration Pathway (RCP) 8.5 scenario using a multi-model ensemble derived from the weighted average of seven global climate models (GCMs). The multi-model ensemble captured the …
Learn MoreIn summary, sunspaces performed well in capturing solar radiation. In order to study the impact of solar heat gain on the design of passive farmhouses in cold areas in China, the amount of solar heat gain is taken as a control condition, which is easily achieved by altering the ability of the sunspace to capture solar radiation.
Learn MoreThe potential for solar energy generation can be classified as geographical and technical. The geographical potential is the annual total solar radiation in a suitable regional area, taking into account geographic constraints [14]. Northwest China is rich in solar energy resources, and the annual average solar radiation can reach 1750 kWh/m …
Learn More1. Introduction. Surface solar radiation, as a key driving force of energy and mass exchange within the Earth''s climate system (Feng and Wang, 2018), plays an important role in plant photosynthesis, latent heat exchange in surface air and the water cycle (Wang et al., 2010, Stephens et al., 2012, Wild et al., 2017).Given the great …
Learn MoreA hierarchical system of solar radiation zones in China was established using DPMMs with different components. The main advantage of using DPMM is that it adaptively determines the optimal cluster number through variational inference [33], thus preventing the potential overfitting effects [31]. ... An analysis of thermal and solar zone ...
Learn MoreGlobal Trends in Downward Surface Solar Radiation from ...
Learn More1.. IntroductionSolar energy is one of the most important and promising renewable and sustainable energy. China has abundant solar energy resources and more than two-thirds of areas receive an annual total solar radiation that exceeds 5.9 GJ/m 2 with sunshine duration more than 2200 h [1] is meaningful to substitute solar energy for …
Learn MoreWith the abrupt and significant drop of PM 2.5 concentrations during the lockdown in 2020, hourly direct radiation (R dir) at surface substantially increased in East China, such as Zhengzhou, …
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