Final answer:
The number of air cooling devices in a compressor system is determined by various factors and requires specific system information to calculate.
Step-by-step explanation:
The number of air cooling devices provided in a compressor system can vary widely depending on the specific requirements of the system, including its size, the amount of heat it generates, the ambient temperature, and the desired outlet temperature of the compressed air. Compressor systems may use one or multiple stages of cooling, and each stage may have one or several individual coolers. Therefore, without specific information about the compressor system in question, it is not possible to accurately determine whether the number of air cooling devices is 18 or 171, as these numbers could be arbitrary without the proper context.
In practice, an engineer would calculate the required number of air cooling devices by assessing the thermal load, the efficiency of the coolers, and the target temperature specifications for the compressed air. This process involves applying principles of thermodynamics, heat transfer, and fluid mechanics to ensure that the compressor system operates efficiently and effectively