1. Insights into Advanced Steam Turbine Centrifugal Chiller Technology
A stable supply of low cost natural gas is making the technology more attractive to large combined heat and power plants.
2. Testing Cooling Tower Water for Total Bacteria and Legionella
Is it time to reconsider testing for total bacteria and Legionella in cooling tower water? Two case histories demonstrate how current water-testing methods could be indicating that bacteria control is acceptable and under good control — when the opposite is true.
3. Evaporative Coolers with Dry Capability Broaden the Mechanical Landscape
As aging facilities are tapped to accommodate expanded manufacturing and broader process applications, facility owners and managers are faced with vexing challenges. Primary among them is how to meet these demands within realistic budget parameters.
4. Maintaining Cooling Tower Operation in Cold-Weather Environments
In applications ranging from industrial process facilities to data centers, many buildings require cooling — even in cold weather. Careful oversight is needed when operating cooling towers in subfreezing temperatures to avoid complications. By following some basic operating guidelines, cooling towers can be successfully operated year-round even in cold climates.
5. How Clean Is Your Cooling Water?
During process cooling, the cooling water absorbs large volumes of airborne particulate while the cooling tower acts as an air scrubber, filtering the surrounding air. With time, these fine particles can build up and settle within the system, adversely affecting cooling performance while lowering the life of wetted subcomponents.
6. Craft Brewery Drives Success with Process Automation Swap
Not many Americans like warm beer — except, of course, process cooling engineers who work for breweries. They know that maintaining elevated temperatures within a metal tank in the brewhouse is critical throughout much of the fermentation process. Only at the proper time is coolant — often a mix of glycol and water — circulated by a programmable controller that opens and closes valves, directing flow through a tank jacket.
7. Cranberry Processing Plant Taps Carbon Dioxide Refrigeration System
With 80 cranberry bogs, Canneberges Bécancour is one of the most productive cranberry farms in North America. The farm, which was established in 1996, processes about a half-million pounds of cranberries per day during a typical harvest, which lasts four to six weeks in late fall. The producer is located on 450 acres in the Bois Franc region of Quebec, Canada, between Montreal and Quebec City.
8. Process Cooling Systems using Modern Natural Refrigerants
Manufacturers and OEMs are replacing the old classes of chemical refrigerants that emit potent greenhouse gases — hydrofluorocarbons (HFCs) hydrochlorofluorocarbons (HCFCs) and chlorofluorocarbons (CFCs), for instance. The environmentally friendly, green refrigerants used in their place do not deplete the ozone layer and have a lower impact on global warming.
9. Temperature Measurements in Distillation Processes
10. Cold Plates in Process Cooling Applications
The miniaturization of high powered electronics — and the requisite component density that entails — have led engineers to explore cooling methods of increasing complexity. As a result, a growing trend in the thermal management of electronics includes liquid-cooling systems. This has prompted the reintroduction — and reimagining — of cold-plate technology, which has a long history dating back to its inclusion in NASA’s Apollo program.