Figure 1. A closed-circuit cooler. Photos courtesy of Evapco. It’s a common question during the early design phase of large mechanical systems: Is open- or closed-loop cooling equipment better suited ...

Part 1 in this series covered defrost cycle problems in heat pumps. Now, let's discuss the second major winter issue: heat pumps stuck in one mode. The customer calls and says the system won't switch ...

With the constant and ever-growing demand for more power in America, a power plant’s ability to be as efficient and dependable as possible will become paramount. Closed-loop, evaporative coolers can ...