Compressible Fluid Flow

The environmental engineer designs and/or specifies various systems in which gases are the fluid medium. Such gases include air, digester gas, molecular oxygen, chlorine, ozone, natural gas, and carbon dioxide. These gases are compressed, conveyed, dispersed, and diffused for a variety of purposes. Some gaseous systems, such as those providing molecular oxygenation, chlorination, and ozonation are largely manufacturer-designed, with the prime design engineer's role being mainly that of selection and specification. On the other hand, aeration systems, and to a lesser extent, digester gas systems, entail the more detailed involvement of the environmental engineer. In all cases a basic understanding is desirable.…