New South Wales Australia 

Location: New South Wales, Australia

Geographic Climate: Subtropical Humid Climate

Greenhouse Type: Glass/Venlo Greenhouse

Purpose of Greenhouse: Seedling Cultivation and Planting of Flowers and Trees

Construction Area: 2.5 hectares

Construction Period: 50 days

Configuration:

Additional Configurations:

As an important branch of modern agricultural facilities, glass greenhouses have gradually evolved into standardized industrial architectural forms since the Industrial Revolution. Among them, the Venlo-type multi-span glass greenhouse stands out due to its exceptional adaptability and functionality, becoming one of the mainstream glass greenhouse forms globally. Named after the Dutch town of Venlo, where the prototype of this type of greenhouse was first created in the 1950s, it has undergone decades of technological iterations and has now formed a mature standardized system, widely applied in different climatic zones and planting scenarios.

Its core feature lies in its full glass covering structure, with both the roof and side elevations using high-light transmittance glass as enclosure materials. Tailored to Australia's climatic characteristics, the greenhouse roof typically employs single-layered 5mm tempered glass or 8mm double-glazed hollow sunshine plates, fixed with high-strength sealing using specialized aluminum alloy profiles. This covering system not only exhibits excellent optical properties (with a light transmittance of ≥90%) but also possesses impact resistance and aging resistance, offering a service life of over 25 years, significantly surpassing traditional covering materials.

In structural mechanics design, the Venlo-type greenhouse innovatively eliminates the traditional purlin system, adopting a mechanism where the longitudinal gutter directly bears the roof load. Wind loads, snow loads, and maintenance loads on the glass panels are transferred to the column and roof beam joints through the gutter, forming an efficient spatial force structure. This design not only reduces steel consumption by 15%-20% compared to traditional structures but also achieves a large span of 12 meters, providing ample space for mechanized operations.

The Venlo-type greenhouse integrates multi-dimensional control systems:

Three-dimensional truss structures can withstand winds up to Force 12 and snow loads of 50kg/㎡. Double-glazed units combined with an internal insulation curtain system reduce winter energy consumption by 30%-40%. Modular design supports rapid expansion, with individual greenhouse clusters reaching scales of over 10 hectares. Currently, the Venlo-type greenhouse has evolved into subtropical, cold climate, and plateau-specific product lines, covering a vast geographical area from 60°N to 40°S, becoming one of the most engineering-valuable solutions in the field of facility agriculture.

Greenhouse circulation fans are special fans used to circulate air within greenhouses. Their characteristic is controlling the airflow within the greenhouse. Circulation fans can effectively regulate the temperature and humidity within the greenhouse, ensuring normal plant growth, reducing temperature differences within the greenhouse, and decreasing the incidence of plant diseases.

Greenhouse wet curtains are special devices used to control the internal humidity of greenhouses. Their principle involves condensing moisture through the area of the wet curtain, thereby maintaining a constant humidity inside the greenhouse. This more effectively promotes plant growth and development, extends plant lifespan, conserves energy, and improves agricultural production efficiency.