, a field experiment was conducted at a 17×6 m2 plastic-covered mechanically ventilated single-span greenhouse ... CFD version 6.2) was developed to study the internal climate and crop transpiration distributions of greenhouses ... with the measured distributions of the air temperature, relative humidity, and air velocity along the greenhouse
These greenhouses insist of their higher performance by considering regional merits than the greenhouses ... Recently, regionally characterized greenhouses have been built every place around the country. ... The greenhouses were investigated and classified into wide span house, large pipe house, arched lattice
The interest in greenhouse gases (GHG) emitted from all industries is emerging as a very important issue ... Korean industry and government are also making a number of effort to reduce greenhouse gas emissions ... The fisheries sector is increasingly interested in greenhouse gas emissions also due to the Paris Climate
The ventilation effect of developed ventilation window was investigated in experimental greenhouse which ... The descent effect of temperature by ventilation windows was two times higher than Venlo type greenhouse ... this study, new development of natural ventilation window was accomplished to control environment of greenhouse
The ventilation effect of the air inflated greenhouse was superior to the conventional greenhouse. ... The PPF of conventional greenhouse was more decreased than the air inflated greenhouse as time went by ... The thermal insulation effect of the air inflated greenhouse was the same as that of conventional greenhouse
for a particular greenhouse design. ... by virtual greenhouse for fruits and vegetable cultivation. ... The combination of the three-dimension (3D) model and the greenhouse simulator enable a 3D experience
The present study estimated rumen fermentation characteristics and greenhouse gas emissions of different ... has a higher nutrient digestibility and volatile fatty acid in the rumen leading to a reduction of greenhouse
A damper control algorithm is designed to enhance the usage of excessive energy in the glass greenhouse ... of energy savings, the proposed system with damper control is compared with conventional greenhouse ... system is suggested to increase energy saving rate for heating and cooling system of the closed glass greenhouse
of 3~4 m had two times safety snow-depth more than that of the plastic greenhouse without the pole. ... And the safety snow-depth of five types of the single-span plastic greenhouses according to the pole's ... Accordingly, with the purlin being sufficiently reinforced, the plastic greenhouse with the pole's interval
of 5.7~7.6℃ and 7.4~9.7℃ to the control greenhouse, respectively. ... 50% of the internal temperature gradients in the usual fan and pad cooling greenhouses. ... The fan and pad evaporative cooling system is one of the main cooling methods in greenhouses.
In the pot culture condition, the yield and quality of greenhouse tomato were improved when irrigation ... irrigation timing and amount was designed and evaluated for its applicability in pot and field culture of greenhouse
temperature, 40℃ or above, condition of greenhouse interior. ... To improve this inferior crop growth condition, for nozzle system was installed in the pet greenhouse ... However, most of greenhouse farmers are giving up crop cultivation during hot summer season due to extreme
The 07-auto-1 and 08-auto-1 types showed similar heat budget tendencies regardless of greenhouse types ... The 07-mono-1 and 07-mono-3 types also showed similar heat budget tendencies regardless of greenhouse ... In other words, the ratios of surplus solar energy were about 20.0~29.0% regardless of greenhouse type
Growth of roses harvested in greenhouses with a NCFIHS was similar to those grown in greenhouses with ... against those grown in greenhouses heated by so called an electrical heating system. ... with a NCFIHS as compared to those harvested in greenhouses with an electrical heating system.
area of greenhouse heating. ... Area of greenhouse cultivation is 52,526 ha and the area of greenhouse heating is 5,878 ha in Korea. ... The area of greenhouse heating with petroleum is 5,878 ha and that has between 84 percent of the total
Fan coil units in the greenhouse extracted average 28.2 kW from the greenhouse air and the temperature ... But in these days necessity of cooling a protected horticultural greenhouse is on the rise from partial ... and be considered to be cheaper than a vertical type geothermal heat pump system was installed in greenhouse
Roses are one of the most produced flower species in the world, and cut roses are produced in the greenhouses ... Recently, due to the increase in the temperature in the greenhouses in summer, the quality of cut roses
The concern on the greenhouse gas emissions is increasing globally. ... Especially, the greenhouse gas emission from fisheries is an important issue due to Cancun Agreements