Air-water exchangers keep things cool

One of the best ways to cool beer on a day out is to have a good time on the river, where the moisture makes the air cooler. The result is a rapid transfer of heat, and so the liquid in the bottle quickly matches the outside temperature.

Likewise, in industrial settings, air-water exchangers are a very good solution. This is especially true for situations complicated by an aggressive external environment or by the need to control clean air in facilities. Examples include chemical industries, cement plants, mines, foodstuffs, pharmaceutical, and so on.

When deciding to use an air-water exchanger, it is usually because the air temperature is too high, more than 40o C. Also, it could be that the quality of the air outside makes it impossible to work with ventilation, air conditioner or other solutions that need outside air for cooling. For instance, in the case of cement plants, filters are quickly blocked due to airborne particulates.

Paper mills, printing facilities or chemical plants are other examples of environmentally challenging, high-heat environments. Such facilities often do have an available temperature-controlled and stable supply of water. In such situations, an air-water exchanger is a good option that is low maintenance, since they require no filter.

The only prerequisite for installing one or more air-water exchangers is a source of cold water that can be filtered. It may come from a chiller or a well. But, in any case you must make sure that no sediment is present in the water which can reduce the effectiveness of the internal coils of the exchanger.

The main advantages of air-water exchangers are that they:

1) Are optimal for very aggressive and dusty environments.

2) Provide high water tightness of the thermal solution box.

3) Efficiently extract large amounts of heat.

4) Do not leave extracted heat in the cabinet or room. Instead, the heat is extracted outside the factory or installation, with the result being great energy savings for the end user against other thermal solutions.

To correctly select the air-water exchangers, it is essential to perform a thermal calculation involving how many calories must dissipate inside the cabinet. You also must know the working temperature of the water – in other words, temperature that the chiller will generate.

Also, it is recommended to use glycolated water of hydraulic properties similar to the one indicated in Table 1.

Table 1

ProClima can help you select the most appropriate model according to the characteristics of the cabinet or installation. It contains the performance curves of the heat exchangers, and you can find the working point of the installation.

For more information about air-water exchangers, please visit our website or download our catalog.

The post Air-water exchangers keep things cool appeared first on Schneider Electric Blog.

from Schneider Electric Blog http://ift.tt/2ifbNtn


Comments

Post a Comment

Popular posts from this blog

EFF: No Digital Surveillance of Iranians at the U.S. Border—or Within the U.S.

No Digital Surveillance of Iranians at the U.S. Border—or Within the U.S. Only days into heightened tensions between the United States and Iran, media outlets have published disturbing reports of increased scrutiny of people of Iranian descent at U.S. borders, including in at least one case involving a traveler’s phone. EFF strongly opposes any targeting of people for digital surveillance based on their race, religion, or nationality, at our border and in our interior. And we remind all members of the public to practice surveillance self-defense. Disturbing Reports from the Border On January 5, media outlets reported that more than 60 people of Iranian descent, including U.S. citizens, were held at the border between Canada and Washington state for many hours and questioned about their perceived connections to Iran. U.S. Customs and Border Protection (CBP) denied that it detained or refused entry to Iranians based on their national origin, a claim contested by accounts f
Read more

EFF: Corporate Speech Police Are Not the Answer to Online Hate

Corporate Speech Police Are Not the Answer to Online Hate A coalition of civil rights and public interest groups issued recommendations today on policies they believe Internet intermediaries should adopt to try to address hate online. While there’s much of value in these recommendations, EFF does not and cannot support the full document. Because we deeply respect these organizations, the work they do, and the work we often do together; and because we think the discussion over how to support online expression—including ensuring that some voices aren’t drowned out by harassment or threats—is an important one, we want to explain our position. We agree that online speech is not always pretty—sometimes it’s extremely ugly and causes real world harm. The effects of this kind of speech are often disproportionately felt by communities for whom the Internet has also provided invaluable tools to organize, educate, and connect. Systemic discrimination does not disappear and can even be ampl
Read more

Living on the (IT) Edge: Schneider Electric at HPE Discover 2018

Image
We’re here at HPE Discover 2018 , proudly sponsoring the event and enjoying a jam-packed few days in Las Vegas. The data center industry has experienced tremendous disruption in the last decade. The fourth Industrial Revolution, with its IT/OT convergence, the proliferation of IoT, and insatiable demand for digital connectivity, is creating the opportunity to push the envelope of performance beyond the obvious and create new business value. And there’s no bigger opportunity right now than at the edge. At the same time, these new paradigms are also driving more complexity: companies today are trying to manage a combination of environments, from large centralized data centers on-premises or in the cloud, regional edge data centers, to local edge data centers. We have more data centers, intertwined across more locations, and with more data, than ever before. All of this adds up to promising opportunities on the horizon for our customers – but an equally daunting number of new challenges
Read more