Improving energy efficiency in livestock farming.

(Baonghean) - In the agricultural sector, livestock farming consumes significantly more energy than crop cultivation, forestry, and aquaculture. This causes many livestock farmers to worry about their monthly electricity bills amidst rising energy prices. However, there are several ways to address this issue. Below are five simple measures that can bring practical benefits in terms of energy efficiency for livestock farmers.

Dairy farms in Nghia Dan have invested in installing cooling systems using fan technology.

1. Livestock barn ventilation system:

Different types of animal enclosures have very different ventilation requirements. A well-designed and reliable ventilation system is essential for improving energy efficiency.

- First, it's necessary to select high-efficiency fans, based on the ratio between the volume of air-ventilated space and the amount of electricity consumed under the same pressure conditions. On the other hand, instead of deploying a large number of fans in every location within the farm, arranging them in a chain-like manner allows farmers to utilize the airflow from one location to another. This reduces the cost of purchasing too many unnecessary fans, expands farm space, and most importantly, saves energy. Additionally, adding some fans with stands around the farm also provides certain benefits. Furthermore, regular cleaning and maintenance of the fans are also important.

Secondly, it's important to recognize that natural ventilation remains the most effective way to minimize monthly electricity costs. Farm owners should maximize the advantages of their existing layout, avoiding costly installations later on. For example, they should pay more attention to the thickness and materials of the walls, the placement of eaves, windows, and doors. Ventilation pipes should also be cleaned regularly. Additionally, for open-plan barns (not four walls), the unwalled sections should face the sun for better ventilation, and sunlight will help eliminate harmful bacteria.

Finally, homeowners can also design additional roof ventilation systems to reduce energy costs, especially in areas with hot and humid climates.

2. Lighting system:

Similar to ventilation systems, for lighting systems, selecting high-efficiency lights, installing them in optimal locations, and creating an optimal usage plan are crucial. Regarding light types, LEDs are an ideal choice, saving 40-70% compared to other types. Meanwhile, an optimal usage plan can be created through a combination of photovoltaic panels, smart meters, and other control devices. This ensures that electricity is only used when absolutely necessary. Furthermore, the flexible use of a main switch and separate switches for each area of ​​the farm also contributes significantly to minimizing energy consumption.

3. Infrared heater:

Infrared heaters are useful devices for automatically providing heat to areas where needed (according to user settings) instead of continuously supplying heat to the entire system. In addition, installing thermostats will help improve the energy efficiency of the farm.

4. Water system:

In some cold countries, water systems not only clean barns but also prevent winter freezing, which hinders livestock. This phenomenon causes a significant amount of electricity to be wasted on pumping water and possibly heating. Simple methods to mitigate this include increasing wall thickness or adding insulation in winter, painting walls and equipment black to improve heat absorption, using larger pipes to reduce water pressure due to freezing, and regularly checking pipes to prevent leaks. For farms with milk production lines, owners can utilize the warm water obtained after the milk cooling process to reduce barn freezing.

5. Animal waste treatment system:

Farmers need to accurately calculate the scale of their farm, both in terms of size and the maximum number of livestock, to install a waste treatment system of appropriate size. Furthermore, given that current treatment systems primarily rely on water to flush out barn waste, integration with the water system and setting appropriate temperature and water flow are essential. In addition, the development of clean energy technology allows farmers to utilize the abundant organic waste from livestock as fuel for electricity production. With a simple anaerobic decomposition process, they can obtain a gas mixture containing up to 60% methane – a clean fuel that does not pollute the environment.

Viet Phuong (Compiled)