Johnson- Knowledge Base
Here, the focus is on screw compressors in refrigeration and the use of economizers and side loads to enhance energy efficiency. The advantages of screw compressors over reciprocating compressors are highlighted, particularly their ability to have a secondary suction port for drawing additional vapor. The economizer utilizes this port to sub-cool liquid going from the…
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Johnson- Knowledge Base
Frick Screw Compressors Pt. 1
Learn about the basic operation of rotary screw compressors and what part they play in refrigeration. We think of screw compressors as the heart of refrigeration. By understanding a little about how they are supposed to operate, it helps you in applying them in systems and knowing the important points when selecting equipment and designing…
Johnson- Knowledge Base
Fundamentals of Vibration Measurement with Screw Compressors
Screw compressors are quite large and always a vibration signature on machines. It’s important to learn what we can from those signatures to know if maintenance is needed or if a machine needs some attention. Starting with the basics today and work up to a little more specific interpretation of screw compressor details.
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When Geography Meets Purpose: How One Move Reshaped a Vascular Surgeon’s Career
Medicine isn’t what it used to be—not for the people practicing it. Independent physicians are becoming the exception, not the norm, as more doctors move into hospital systems, corporate groups, and academic networks. At the same time, the pipeline of specialists isn’t keeping pace with growing patient needs, particularly in complex fields like vascular…
