Johnson- Knowledge Base

Frick Screw Compressors Pt. 2

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…

Read More

Latest

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…

Read More
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.

Read More

Latest

summer melt
From Freshmen to Founders: Michigan Students Take on Higher Ed’s Summer Melt Crisis with MeetYourClass
May 29, 2025

A growing number of colleges are struggling to convert applicants into enrolled students—and to keep them engaged through graduation. With Gen Z students relying heavily on familiar digital platforms like Instagram and Discord for social interaction, traditional college tools for orientation, enrollment, and community-building often miss the mark. According to research, between 10 to 40…

Read More
Aviation maintenance
The Future of Flight Depends on Mechanics, Not Machines: How Jets MRO is Solving the Aviation Maintenance Talent Gap
May 28, 2025

Private aviation is booming—but behind the sleek jets and luxury cabins lies a hidden crisis. A looming shortage of qualified aviation maintenance technicians threatens to ground growth. According to Boeing’s 2023 Pilot and Technician Outlook, the industry will need about 690,000 new maintenance technicians by 2042. While private jet usage is skyrocketing, the infrastructure to…

Read More
digital learning ecosystem
Stride at 25: Redefining the Digital Learning Ecosystem for Today’s K–12 Learners
May 28, 2025

As virtual learning matures and school choice accelerates across the U.S.,the 25th anniversary of Stride Inc. offers a moment to reflect on how far the digital learning ecosystem has come and where it’s headed.. Once known as K12 Inc., the company helped pioneer online education at scale. But in a landscape shaped by evolving…

Read More
search
From Search (SEO) to Answers with Generative AI
May 27, 2025

In this episode of The Marketing AI SparkCast, Aby Varma—founder of Spark Novus, which partners with marketing leaders to adopt AI responsibly and strategically—hosts Mike Ensing, Founder and CEO of Revere AI. They explore how LLMs are revolutionizing search, shifting the customer journey, and forcing a new marketing playbook where brand discovery is increasingly…

Read More