tesi

Polyurethane (PU) air inlets boast exceptional resistance to UV radiation, corrosion, moisture, and aging. Even when subjected to prolonged extreme weather conditions and the harsh environment of a poultry farm, they remain free from deformation, cracking, rusting, or fading. The high-toughness PU material maintains its structural integrity and stability even after countless opening and closing cycles, while also offering superior …

In modern livestock farming, environmental control is an essential prerequisite for ensuring animal health, welfare, and productivity. Although exhaust fans—acting as the “engine” of mechanical ventilation systems—often garner the most attention, air inlets—serving as the equally vital “lungs”—are frequently overlooked. Even if the fans are appropriately selected, poorly designed or managed air inlets can still lead to drafts, uneven air …

May 18–20, 2026 — The 23rd China Animal Husbandry Expo (CAHE) and the 2026 China International Animal Husbandry Exhibition officially opened at the Western China International Expo City in Chengdu. WUSEN presented its comprehensive range of livestock environmental control equipment and customized facility-wide solutions, leveraging its exceptional technical prowess to unveil new possibilities for the industry’s future development. Focusing on …

I. Why Do Greenhouses Need Evaporative Cooling? High summer temperatures are the number one killer in greenhouse cultivation. When greenhouse temperatures exceed 35°C, the photosynthesis of most crops declines significantly; pollination is hindered, fruit quality deteriorates, and in severe cases, entire plants may even wither and die. Traditional ventilation and cooling methods can only lower the temperature to match that …

The principle behind evaporative cooling is that when water evaporates, it absorbs heat from its surrounding environment. As dry, hot air flows through a water-saturated cooling pad, the water undergoes a phase transition from a liquid to a gas (water vapor). This phase-change process directly extracts thermal energy from the air, resulting in a significant drop in air temperature—typically ranging …

Effective ventilation begins with proper air inlet design. It determines the location, velocity, and uniformity of the fresh air entering the poultry house. Side-Wall Inlets (Minimum Ventilation Mode) Primarily used during cold weather or the brooding period. These small, adjustable vents are installed high up on the side walls. When opened by negative pressure, they direct incoming cold air upward …

WUSEN plastic cooling pads are engineered to withstand the harshest environments. They harness the natural principles of evaporative cooling—significantly lowering temperatures by drawing air through a water-saturated surface—while offering the exceptional durability inherent in modern polymers. Features a large surface area design that maximizes the contact interface between water and air. Achieves exceptionally high saturation efficiency (up to 85–90%), capable …

The evaporative cooling pad—essentially a corrugated fibrous paper subjected to a specialized impregnation treatment—has, by virtue of its unique design and material properties, established itself as a highly renowned and widely utilized product series within its field. Core Construction and Materials The core material of the cooling pad is a specialized cellulose paper. This paper undergoes a specific chemical impregnation …

The defining characteristic of tunnel-style air inlets is their powerful ventilation capacity. These vents serve as integral components of a ventilation system, boasting robust airflow capabilities that make them ideal for providing supplementary ventilation during the summer months or functioning as the primary air intake for tunnel ventilation systems. Both airflow volume and direction can be easily controlled. During the …

The core principle of the evaporative cooling pad system lies in harnessing the natural physical phenomenon of heat absorption through water evaporation, combined with negative-pressure ventilation technology, to achieve rapid cooling and air circulation within a greenhouse. During operation, a water pump evenly distributes fresh water to the top of the cooling pads; guided by a specialized flow-diversion structure, the …

Livestock farms require specially customized air filters designed to suit their unique operating environments—specifically, high dust concentrations, high humidity, and the need to maintain a stable airflow to ensure animal comfort. The following are several of the most common and effective types of air filters found in modern livestock facilities, each playing a distinct role within a multi-stage filtration system: …

The Solution: Evaporative Cooling Pad Systems Cooling pads (also called cellulose or honeycomb pads) use the natural principle of evaporative cooling to drop incoming air temperatures by 15–25°F (8–14°C) before it ever reaches your birds. How It Works Water continuously trickles down the face of high-density cellulose pads Tunnel fans pull hot, dry outside air through the wet pads As …