Chinese solar greenhouse (CSG) is universally applied in northern China for producing horticultural products. CSG is characterized by the unbalanced structures with an arched front roof face to the south side and a thick wall as well as back roof in the north side. Such structures affect light distribution in the greenhouse. This study aims to investigate the light distribution properties in CS...

Abstract—Present study focused on the utilization of solar energy by the help of photovoltaic greenhouse solar dryer under forced mode. A single slope photovoltaic greenhouse solar dryer has been proposed and thermal modelling has been developed. Various parameters have been calculated by thermal modelling such as greenhouse room temperature, cell temperature, crop temperature and air temperatu...

The atmospheres of terrestrial planets are expected to be in long-term radiation balance: an increase in the absorption of solar radiation warms the surface and troposphere, which leads to a matching increase in the emission of thermal radiation. Warming a wet planet such as Earth would make the atmosphere moist and optically thick such that only thermal radiation emitted from the upper troposp...

introduction controlling greenhouse microclimate not only influences the growth of plants, but also is critical in the spread of diseases inside the greenhouse. the microclimate parameters were inside air, greenhouse roof and soil temperature, relative humidity and solar radiation intensity. predicting the microclimate conditions inside a greenhouse and enabling the use of automatic control sys...

The internal air temperature of Chinese solar greenhouse (CSG) has the problem uneven spatial and temporal distribution. To determine distribution at different locations, we designed a real-time monitoring system based on virtual local area network (VLAN) estimate, including interpolation estimation module, data acquisition, transmission module. were obtained from 24 sensors, Ordinary Kriging a...

Shading the greenhouses is necessary in summer to reduce the solar radiation load. This however generates a considerable amount of thermal radiation heat load that needs to be removed via cooling systems. This study aimed to evaluate the effect of different shading configurations on the solar and thermal radiation in a greenhouse. Nets at four different locations were employed to shade the roof...

As climate change is emerging as a manageable and predictable global problem, several industries are shifting the focus of their business to include the reduction of greenhouse gasses. This is seen in most power generation technologies, but none have shown the sustained level of growth as that of solar power. Year over year the photovoltaic industry continues to return growth rates around 30%. ...

A global atmosphere–ocean– sea ice general circulation model (GCM) is used in simulations of climate with greenhouse gas concentrations and sulfate aerosols prescribed from observational data (1870 through 1995) and future projections (1995 through 2100). Simulations that include the variability in solar flux from 1870 through 1995 are also performed. The variation in solar flux of +/–2 W m pro...