HF Motion 
Global Climate Trends
Due to the impact of human activities on the earth, such as greenhouse gas emissions, deforestation and land use changes, carbon dioxide levels in the atmosphere increase, forming the greenhouse effect. Urbanization and land use changes affect surface temperatures, and urbanization often results in a heat island effect in urban areas, making cities hotter. On the other hand, changes in solar activity and the intensification of El Niño and La Niña phenomena have caused many extreme climates.
In general, the current global climate trend is rising temperatures and periods of extreme weather, specifically manifested in rising average temperatures, with extremely high temperatures occurring locally, which has had a negative impact on people’s lives, agriculture, ecosystems and infrastructure.
The Dangers of Rising Global Temperatures
For people’s lives, rising global temperatures and extreme hot weather directly bring health risks. High temperatures can cause heatstroke, heat stroke, increase the burden on the heart and vascular system, and increase the risk of heart disease and stroke, especially for the elderly and patients with cardiovascular disease. Hot weather can cause sleep problems, anxiety and depression, negatively impacting mental health.
Heat-related deaths often increase significantly during extremely hot summers or heat waves. According to statistics, the heat wave in the northern hemisphere summer alone in 2022 directly or indirectly caused up to 60,000 deaths in Europe.
The rise in global temperatures has also caused a significant increase in energy consumption of refrigeration and ventilation equipment, causing local power shortages, industrial power rationing and other problems. The rise in temperature caused by the greenhouse effect ultimately relies on the energy that generates greenhouse gases for refrigeration and cooling. This is a vicious cycle.
Application of Air Cooler
The air cooler is a commonly used cooling device. It uses a fan to generate airflow to blow through the water curtain. The water evaporates and absorbs heat, thereby cooling the blown air and increasing the humidity. This is the basic principle of the air cooler for cooling. It is especially suitable for hot weather and dry areas.
- Energy Efficiency: Air coolers are generally more energy efficient than air conditioning units because they do not require the use of refrigerant or large amounts of electricity to cool. It relies on the evaporation of water for cooling, a relatively low-energy process;
- Environmentally friendly: Because it consumes less electricity, it also greatly reduces greenhouse gas emissions;
- Low maintenance costs: Air coolers are relatively easy to maintain and generally have low maintenance costs because they have no complex mechanical parts or refrigerant systems;
- Mobility: Air coolers are generally lightweight and easy to move and deploy, making them very flexible for use in different locations and environments;
- Cooling effect: The air cooler can significantly reduce the indoor temperature and provide a comfortable environment, especially in hot summer;
- Increased Humidity: The evaporative cooling process of an air cooler can also increase indoor humidity, improving air quality and mitigating dryness issues.
Application Issues of Air Coolers in Areas with Power Shortages
Although the air cooler is a low-priced cooling device with low operating costs, the use of air coolers in areas with power shortages may face some problems and challenges, mainly related to unstable or limited power supply:
- Demand exceeds supply: In areas with power shortages, the power supply system may not be able to meet peak power demand, so the use of air coolers may cause additional power demand, exacerbating power supply problems;
- Power outages: Areas experiencing power shortages are more likely to experience scheduled or unscheduled power outages. Especially during high temperature periods during the day, the electrical load increases, requiring local power reduction. And high load can easily lead to power system failure;
- Generation Costs and Sustainability: If the electricity supply relies on non-renewable energy sources or high-cost generation methods, the use of air coolers may have an adverse impact on the environment and increase the cost of electricity production;
In response to the above problems, some air cooler manufacturers have launched air cooler systems that use solar energy as energy. In areas with power shortages, the solar powered air cooler solution is an innovative solution that combines solar power generation and air cooler technology to reduce dependence on traditional power supplies. To a certain extent, it alleviates the cooling pressure caused by power shortages and reduces dependence on non-renewable energy sources and carbon emissions.
Disadvantages of Traditional Solar Cooler Solutions
The solar air cooler system only requires a small-scale off-grid solar system, with low investment and maintenance costs, further increasing its popularity. It can also be equipped with batteries for operation at night and when there is no sunlight.
However, the traditional solar cooler solution also has some flaws. Solar cooler systems from manufacturers mainly come in the following two types:
Type 1:Universal solar powered air coolers with BLDC motor
Although this type is equipped with a BLDC motor, which is suitable for solar energy driving, it is also equipped with a battery for operation in the absence of sunlight. But the shortcomings are also obvious:
- The solar energy utilization rate is low. In the morning, evening, and cloudy days, due to insufficient solar power, there is sunlight but cannot be used;
- The battery is constantly being charged and discharged and has a short lifespan;
- When the battery is low, it needs to be charged before it can be used, and solar power cannot be used directly;
- When there is no solar power and the battery is low, AC power cannot be used.
Type 2: Universal solar powered air coolers with AC induction motor
This type is suitable for air coolers equipped with AC motors and uses an inverter to generate AC power. Mains electricity can also be used when solar energy is not available. The disadvantages are as follows:
- The solar energy utilization rate is low. In the morning, evening, and cloudy days, due to insufficient solar power, there is sunlight but cannot be used;
- The battery is constantly being charged and discharged and has a short lifespan;
- When the battery is low, it needs to be charged before it can be used, and solar power cannot be used directly;
- Inverter lose is high;
- The total price of equipment is high.
HF Motion provides a more advanced solar system for air cooler products, combining E-Hybrid tech solar technology, as well as BLDC motors and controllers, mainly in the following two forms:
FORM 1
The above is a one-to-multiple solution, using a 2.2-30KW E-Hybrid power supply to provide multiple air cooler functions, which can be customized to DC or AC output. Its features are as follows:
- Power range: 2.2-30KW
- Output voltage: 220/380V; DC/AC
- Stable power output in the morning, evening, and on cloudy days.
- Saving energy costs
- No inverter lose
- Less investment
- Long battery life
- Solar power utilization rate 30% higher than normal solutions.
FORM 2
The above is a low-voltage DC solution that integrates all modules with the BLDC motor to make the overall cost lower. It has the following characteristics:
- Motor, controller, E-Hybrid™, MPPT are all integrated
- Output voltage: 12-48VDC
- Power range: 0.15-0.75KW
- Stable power output in the morning, evening, and on cloudy days.
- Less cost
- No inverter lose
- Long battery life
- More features
- Solar power utilization rate 30% higher than normal solutions.
The Significance of E-Hybrid Power Supply Solution
All HF Motion solutions are designed to reduce equipment costs, energy consumption, and increase operational convenience. Utilizing core patented technologies such as solar energy and BLDC motors, we provide exclusive solutions for various industries to meet the needs of the industry and realize various application scenarios. And provide customized solutions for companies to achieve more personalized products and functions. Provide end users with the most effective solution for independence from the grid. In a long period, it can reduce the dependence of various industries on non-renewable energy, reduce the emission of greenhouse gases and pollutants, and contribute to the sustainable development of various industries and the self-healing of the environment.
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