Compressed Air Temperature

compressed air temperature

Compressed air temperature is a key factor affecting the energy efficiency, service life and stability of screw air compressors. Through precise temperature control, daily management and ventilation of the compressor room, the comprehensive performance of the air compressor can be effectively improved.


The impact of compressed air temperature on the energy efficiency of industrial air compressors

1. The impact of high compressed air temperature
The exhaust volume decreases: the increase in temperature will reduce the air density, reduce the air intake, and reduce the exhaust volume accordingly, and the energy efficiency ratio will decrease. Scientific research shows that for every 5°C increase in temperature, the unit gas production energy consumption increases by about 1.7%

Lubricant performance deterioration: high temperature will accelerate the oxidation of lubricants, reduce viscosity, and weaken the lubrication effect, and the core components of screw air compressors. Bearings and rotors will age faster.

Increased cooling system load: high temperature environments require additional heat dissipation, and the load of the oil cooler and air cooling system increases, which may cause oil filter blockage and reduce cooling efficiency.

2. The impact of low compressed air temperature
Condensate precipitation: too low temperature will reduce the dew point of compressed air, and water will condense in the oil cooler, causing the lubricant to emulsify and the lubrication performance to decrease.

Difficulty in starting the air compressor: the viscosity of the lubricating oil increases, the fluidity deteriorates, and the starting current is too large.

The impact of temperature on the life of industrial air compressors

1. Too high temperature
Aging of seals: The hardening speed of rubber seals at high temperatures is accelerated by 4.5 times, and the oil leakage rate increases.

Deformation of metal parts: Long-term high-temperature operation may cause thermal expansion of the screw rotor, increase the gap, and affect the compression efficiency.

2. Too low temperature
Icing of pipes: When the temperature is below 0°C, the freezing of condensed water may block pipes and valves, affecting the stability of gas supply.

TIPS for compressor temperature optimization
1. Optimize operating parameters
Ideal temperature range: The suction temperature of the screw air compressor should be controlled at 18-38°C, and the exhaust temperature should be maintained at 65-90°C.

Equipped with an intelligent temperature control system, dynamic temperature control is achieved through variable frequency regulation and a combined compressed air dryer with air cooling + water cooling.

2. Daily management tips for air compressors
Clean the cooler regularly to avoid scaling and reduced heat dissipation efficiency.
Environmental control: Install ventilation devices in the machine room to avoid extreme temperature effects.