Hydrocarbons such as Propane, Propylene, and Isobutane are great natural refrigerants that are successfully used in commercial refrigeration appliances today. Hydrocarbons can boast the low global warming potentials regulators are looking for without being Ozone depleting. So why don’t they get as much airtime as other natural refrigerants such as ammonia and CO2? Perhaps the […]
Hydrocarbons in Refrigeration Read More »
June 2022 Blog Post Author: Erik Hansen Subject: Stainless Steel Condenser Tubes or Galvanized? That is the question! NOTE: The posting will dig a little into product selection revolving around evaporative style condenser products and not necessarily air-cooled or adiabatic condensers. Industrial refrigeration systems in the Midwest often use evaporative type condensers for
Stainless Steel Condenser Tubes or Galvanized? That is the question! Read More »
If you have ever been involved in buying or installing a new evaporatively cooled condenser, then you’ve probably heard about evaporative condenser passivation. You probably heard it is important and a process you should strive to complete. But if you are like many owners, operators, or heck even refrigeration engineers, that’s probably where your knowledge
Evaporator Condenser Passivation Read More »
Those of us in the northern climates are familiar with the cruel outside conditions. Old Man Winter lets loose his cool breathe and our backyards and driveways become frigid winter lands that make us always think…“why the hell do I live here again?!” Those of us in the northern climates and familiar with central ammonia
Ammonia Liquid Migration and Cold Weather Startup Read More »
Here at Carlson & Stewart Refrigeration we hear something like this all too often: “My cooler/freezer quit working last night….now all of my product is lost.” What do you do if your cooler or freezer stops working when you are away? More than likely you have something inside of that cooler or freezer that is
Remote Temperature Monitoring & Alarming Read More »
With fall fast approaching it is a great time to remind everyone about the importance of commercial refrigeration routine maintenance. Maintaining your systems for optimal energy efficiency is great for the environment and for your pocketbook. Whether you do the maintenance yourself or have a preventative maintenance agreement with Carlson and Stewart Refrigeration, the importance
Preventative Maintenance Basics – Condenser and Evaporator Coils Read More »
As summer approaches I thought it would be a good idea to revisit one of our previous blog postings from a few years back… How many of you have “scale” on your evaporative condenser? [I am guessing your hand might be in the air]. How many of you feel that this is “normal” and something
How many of you have “scale” on your evaporative condenser? Read More »
Source: http://r744.com/articles/9222/eevs_should_be_standard_equipment_says_u_s_energy_consultant EEVs Should be Standard Equipment, Says U.S. Energy Consultant Electronic expansion valves (EEVs), which are used in commercial display cases to automatically control the flow of liquid refrigerant into a direct expansion evaporator, should be a “standard digital piece of equipment,” said Mike Guldenstern, founder and director of energy efficiency services, llc, an energy
EEVs Should be Standard Equipment, Says U.S. Energy Consultant Read More »