How to calculate electricity bills for variable frequency and industrial frequency air compressors

To calculate the electricity charges of variable frequency and industrial frequency air compressors, you first need to understand their power consumption, and then calculate them in combination with the local electricity price. The following is a detailed calculation method:

1. Calculation of power consumption

calculation of power consumption of power compressors
- Formula: Power consumption (kWh) = working time (hours) × Rated power (kW)
- Example: Suppose a company uses a 75kW industrial frequency compressor and works 24 hours a day.
- Calculation: Power consumption = 24 hours × 75kW = 1800kWh
Calculation of power consumption of variable frequency air compressors
- The power consumption of variable frequency air compressors is related to factors such as its operating efficiency, load rate, etc., and the operating efficiency is usually higher than that of industrial frequency air compressors.
- Formula (approximate): Power consumption (kWh) = working time (hours) × Rated power (kW) × Operating efficiency
- Example: Assume that the operating efficiency of the inverter air compressor is 80%, the rated power is 75kW, and it works 24 hours a day.
- calculation: Power consumption = 24 hours × 75kW × 80% = 1440kWh

2. Electricity calculation

Formula: Electricity bill (yuan) = Power consumption (kWh) × Electricity price (yuan/kWh)
Example: Suppose the local electricity price is 0.7 yuan/kWh.
- Electricity charge for industrial frequency air compressor: 1800kWh × 0.7 yuan/kWh = 1260 yuan/day
- Electricity charge for variable frequency air compressor: 1440kWh × 0.7 yuan/kWh = 1008 yuan/day

III. Analysis of electricity bill savings

Electricity charge saved every day: 1260 yuan – 1008 yuan = 252 yuan
Electricity charge saved every year (calculated based on 365 days): 252 yuan/day × 365 days= 92,180 yuan

4. Other considerations

Load rate: In actual use, the load rate of the air compressor may be less than 100%, which will affect the power consumption. During calculation, the load rate can be adjusted according to the actual situation.
Equipment Efficiency: The efficiency of air compressors of different brands and models may vary. Choosing highly efficient and energy-saving equipment will help reduce electricity bills.
Electricity price fluctuations: Electricity prices may fluctuate due to factors such as regions and seasons. The latest electricity price data should be used when calculating.

Summary

Through the above calculations, it can be seen that the frequency converter has significant advantages in electricity bill expenditure compared to the industrial frequency air compressor. In practical applications, enterprises should choose the appropriate type and model of air compressors based on their own needs and budgets to achieve the goal of saving energy and reducing consumption and improving economic benefits. At the same time, strengthening the operation management and maintenance of air compressors will also help reduce energy consumption and extend the service life of the equipment.

Role of air compressors in industrial enterprises

Air compressors are not only the “driving heart” of industrial production, but also a key link in improving quality, reducing costs and increasing efficiency. With the advancement of technology, its application in waste heat utilization, intelligent control and other fields will be further deepened.

Does the compressed air for blow molding machines mainly come from air compressors?

The compressed air for the blow molding machine mainly comes from the air compressor. In the operation of the blow molding machine, compressed air plays a vital role, which is reflected in the following aspects: First, from the working principle of the blow molding machine, it uses specific processes to…

Does air-cooled air compressor need circulating water to cool down?

During the operation of the air compressor, the equipment cooling method directly affects the use scenarios and maintenance requirements. Regarding the question of whether air-cooled air compressors require circulating water to cool down, it is necessary to explain in conjunction with the working principle of the equipment: the core features of air-cooled air compressors are air-cooled models…

Is the air compressor air production and exhaust volume the same?

The gas production is the theoretical value, and the exhaust volume is the actual value. The two are equal under ideal conditions, but in actual operation, the exhaust volume may be less than the gas production due to various factors. Reasonable selection and regular maintenance can narrow this gap.

Is the air compressor oil-free or oil-free?

The choice of air compressor oil-free and oil-free depends on the specific use scenario and requirements. Advantages of oil-free air compressors: Affordable price: The technology of oil-free air compressors is mature and the production cost is low, so the market price is relatively affordable. Stable performance: The oil-free air compressor uses lubricating and sealing, which […]