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London has the oldest subway network in the world and, during the summer, it can reach temperatures close to the incredible 122 °F mark in the stations. Considering that the temperature indicated for thermal comfort is between 72,5 °F and 78 °F, you can imagine the discomfort caused by such a high temperature.
The antiquity of its facilities, which fascinates so many people, also makes its renovation harder, since, when the subway was conceived, ventilation ducts were not planned to house the modern air conditioning systems currently used in temperature control.
Relative humidity should also be considered to ensure the comfort of users. High or low humidity levels cause discomfort and even respiratory problems. When the air contains a low percentage of moisture, water from the elements available in the environment is absorbed.
That is, everything that is exposed to this condition will dehydrate, to a greater or lesser degree, according to its composition. Also, beyond the discomfort for the users, there is another problem when the relative humidity reaches high levels. This means that the air is charging a large amount of water in relation to the maximum allowed and, upon reaching a certain temperature, the water will condense, going from the state of steam to the liquid state. This scenario can be caused by the air cooling system itself, which may cause corrosive damage to parts of the equipment as well as hindering maintenance and reducing the useful life.
Control humidity and temperature in underground stations, more than provide a pleasant environment for passengers, can help save on system maintenance. Humidity and temperature transmitters enable the adjustment of air conditions through the operation of ventilation and heating devices in metro stations. In addition, they can be connected to a humidity control system, keeping the air always in ideal conditions.
Thanks to its self-adaptive PID algorithm, N1200 responds quickly and accurately even in the most complex temperature profiles.
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Five times more accurate than before, the process indicator optimizes monitoring as it allows a quick process diagnosis without visiting the instrumentation room.
Using Arduino allows programming complex systems easily and intuitively. Even some schools adopt this cheap and functional open source platform as part of their curricula, and the number of codes developed for Arduino is proof of its success and acceptance worldwide. But what about the industry? Is it possible to combine the Arduino facilities with the necessary robustness for industrial equipment?
The WL420 submersible hydrostatic level transmitter is a novelty in NOVUS portfolio, as the company will start offering level control and measurement equipment, providing its customers with even more complete solutions.
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