Ideally, any system operates at a given environmental condition. These conditions affect the operations of the system. Dynamism in the environment can result in similar changes in the systems operations. This makes the control process difficult and therefore need to come up with a system, which can reduce the impact of environmental dynamism (Fiedrich & Joe, 2016) . Due to this, a closed-loop system is used. A closed-loop control system works with the current output and changes it into its desired condition. The input quantity will regulate itself depending on the output generation. This is the reason as to why the closed-loop control system is also called an automatic control system.
This system contains sensors, which measure the actual temperature of the room and the desired temperature of the room. If there is variation between the two temperatures, the system automatically turns on the heating elements functions until there is the desired room temperature. The error of the system is when there is a difference between the actual temperature and desired temperature is measured. The control of input is by the feedback to the system in the error signal. Examples of a closed-loop control system include the automatic electric iron, servo voltage stabilizer, water level controller, and an air conditioner, cooling system in cars and missile launched and auto tracked by radar
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Closed loop control system is more accurate in-room air conditioning, have a large bandwidth, have automatic facilitation and least affected by noise. It is highly accurate because any error signal can rectify due to the feedback received. This system is very unstable because any little misinterpretation may lead to an altercation of its main work. For one to have a stable closed-loop control system, more care is required when designing it (Wang, et al., 2012) .
The transient response is the response of a system to a change from an equilibrium state. If the surrounding of the closed-loop control system changes, it has to adjust itself to work under the same. After all, it will achieve its previous equilibrium state because it works to achieve that.
References
Fiedrich, & Joe. (2016). Residential radiant remodelling. Contractor magazine, 63 (12), 22-26.
Wang, Dexin, Scott, Shawn, Ainan, Liss, & William. (2012). Field trials of a waterless home heating and humidification technology. ASHRAE transactions, 118 (2), 42-49.
