When the pressure of saturated condensate is reduced, a portion of the liquid “flashes” to low-pressure steam. Depending on the pressures involved, the flash steam contains approximately 10% to 40% of the energy content of the original condensate. In most cases, including condensate receivers and deaerators, the flashing steam is vented and its energy content […]
In many conventionally designed heat exchangers, efficiency is limited due to a small temperature difference at the heat exchange surface. For instance, in a shell and tube exchanger, liquid usually flows through the tube. The outer layer of liquid has greater exposure to the walls of the tubing, therefore it experiences higher heat transfer than […]
Although steam traps fail every day, a comprehensive steam trap management program at most facilities doesn’t exist. Even the best programs only inspect them once a year or every other year, resulting in high rates of lost energy. At Campbell-Sevey, we recommend a proactive approach to monitoring steam traps using Armstrong’s SteamEye®. With SteamEye you […]
In a typical Air Heating Coil piping configuration, traps are used to handle condensate and air. What are the effects of air in a coil? 1.Excess Steam Pressure 2.Cold Spots 3.Thermal Vacuum 4.Water Hammer 5.Elevated Condensate The answer is… Cold Spots AND Water Hammer Cold spots are formed when pockets are air are trapped in […]
Low-pressure process steam requirements are usually met by throttling high-pressure steam, but a portion of the process requirements can be achieved at low cost by flashing high-pressure condensate. Flashing is particularly attractive when it is not economically feasible to return the high-pressure condensate to the boiler. In the table below, the quantity of steam obtained […]
Control valves are a key component in any pressure or temperature control application. With the increasing cost of fuel, delivering media in the most efficient way increases productivity by delivering the required pressure or temperature while avoiding excessive consumption. Precision control also provides repeatability and safety for any process. Armstrong’s Python 1500 Series Control Valves […]
Air, water and steam are three media commonly used to distribute heat to process loads. However, steam has several advantages compared to hot air and hot water. These advantages include. the heat carrying capacity of steam is much greater than air or watersteam provides its own locomotive force.steam provides heat at a constant temperature How […]
Recently Campbell-Sevey joined CenterPoint Energy in handing a $35,061 rebate check to one of our valued customers for the energy saving projects they’ve invested in recently. They documented a remarkable energy efficiency cost savings of 9%! Plus, the projects created a safer, longer lasting system. Here is a brief overview of the recent projects. The […]
If you haven’t seen our library of industry-related demonstration videos in our Knowledge Center yet, you are missing out on a valuable resource. The library contains nearly 40 videos that recently reached over 50,000 views including videos on: CoilsCondensing Heat RecoveryExpansion JointsHumidifiersPressure Reducing ValvesShell and Tube ExchangersSteam Trapsand more! Here are a few titles to […]
Low-pressure steam exhaust from industrial operations such as evaporators or cookers is usually vented to the atmosphere or condensed in a cooling tower. Simultaneously, other plant operations may require intermediate-pressure steam at 20 to 50 pounds per square inch gauge (psig). Instead of letting down high-pressure steam across a throttling valve to meet these needs, […]
