The main goal of any HVAC system is to provide comfort. The American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) has established room conditions that are acceptable for ...

Remember that automatic control systems are automatic in operation, but not self-repairing. Unless a building has a service contract with a reputable controls contractor to inspect and calibrate the ...

Pneumatic furnace damper drives may be more common, but electro-hydraulic actuators provide several advantages to the more traditional control scheme. One fossil-fired plant in Taiwan achieved more ...

The goal of pneumatics-system design is often to run actuators as fast as possible without introducing excessive shock loads to the system. At low speeds, a cylinder piston can usually hit the end cap ...

The actuation of cams, detents, and levers has long been the forte of pneumatic or hydraulic systems in machines. These systems are generally open loop. The only verification that the system has ...