Open cooling towers expose process cooling water to the atmosphere, typically as part of a chiller system loop (see Figure 1). These open towers use an efficient, simple, and economical design. All ...

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 ...

LONDON — In a video control room atop a City of London police station, Chief Inspector John Notton can punch up images from 47 cameras and view the glories of England on 39 television screens. Here, ...

I'm considering supplementing my standard security/alarm system with some cameras. However, I want to avoid the usual "IoT"-type systems with Bluetooth, phone apps, etc. I'd like a closed circuit ...

PORTLAND, ME — Contractors prefer closed loop heating and cooling systems for many projects to prevent cross-contamination from external sources. Neglecting maintenance, however, can wreak havoc on ...

The Seattle City Council has approved two crime prevention bills, authorizing the installation of surveillance cameras in several areas.

September 24, 2008 In addition to making history and winning Edmund Hillary a permanent place on the New Zealand fiver, the first successful Everest ascent settled a long-running debate in the ...

Breathing xenon gas can help protect the infant brain from damage caused by oxygen deprivation, but the xenon's high cost and scarcity has precluded its widespread use. A newly developed "closed ...