Improved comfort! A case where control was implemented to reduce the transport volume, thereby reducing unnecessary operation, which means reducing electricity consumption.
At Hotel A located in the Kyushu region, a central air conditioning system is in operation, and they have been facing the challenge of reducing the electricity used.
By installing temperature sensors on the supply and return pipes for chilled and hot water, they collect water temperature data. For example, in the case of cooling, if the return pipe temperature exceeds the specified level, the pump output is increased to boost the flow of chilled water. Conversely, if the temperature is below the specified level, it is determined that the cooling effect is maintained, and the flow rate is reduced, thereby minimizing unnecessary operation and reducing electricity consumption.
There are a few key points: firstly, the reduction rate was significant. Secondly, after the installation of the equipment, the operating hours and electricity consumption are stored and displayed by the equipment, allowing for visualization of the benefits of the implementation.
Finally, it was noted that previously, the indoor environment was either too cold or too warm, but by optimizing the chilled and hot water temperatures with the temperature sensors, these issues were resolved, leading to improved comfort.
[Challenge]
■ The equipment, such as pumps, is always in operation, and there is a need to reduce the electricity used by these devices.
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![[Case Study] Reduced power consumption of central air conditioning transport equipment by approximately 65%.](https://image.www.ipros.com/public/product/image/3da/2000703915/IPROS79538960180692554876.png?w=280&h=280)
