The Green Way to Cool.




There is a lot of green talk out there right now. We can all agree that we love our home and we all want to help out. There just seems to be a lot, lots about the need to save more, but also use less. It can get overwhelming, even more so on a larger business scale. Especially when it comes to climate control. As summer rolls around, energy costs go up. There are so many companies that need cooling and humidification to keep their operations going, from data centers to greenhouses, from office buildings to convenience stores, from warehouses to barns. You would be shocked at how many industries rely on cooling. With these indoor climate challenges, we start to feel the burdens to save more and use less. No wonder we all feel overwhelmed by all of this green talk.


Let us discuss some solutions! Cooling and climate control are a must for companies around the world.


So, is there a way to cool and still be considered green?

Can cooling help you save more and use less?


As a matter of fact there is a way, an ancient way that has been innovated to one of the greenest technologies out there today. This ancient way to cool is something we have all experienced but often take for granted, that way is Evaporative Cooling.


So, what makes evaporative cooling so different?


We often proclaim the green factor of evaporative cooling so let us take a dive a little deeper and show you. Evaporative cooling is considered a green technology because it uses simple and natural cooling principles to offer a very effective and efficient way to cool and humidify (depending on your need). It uses the principles of wind and water to bring you cool.


Ready to dive deeper?


No literally let us dive in, I think we all know the feeling of those scorching summer days when it feels like the only way to get any kind of relief from the heat is by jumping into a refreshing pool. Then comes the part of getting out of the pool and feeling that nice breeze hit and all of a sudden the frigid feeling that you didn't expect could be possible on such a hot day. That is how evaporative cooling works but we want to share more than the dreaming of a hot summer day.


Some of the in depth ways evaporative cooling will help you save more and use less:


- Evaporative Cooling reverses environmental concerns brought through the use of harmful refrigerants used in mechanical refrigeration. Instead evaporative cooling uses wind, water, and media, making it more environmentally friendly.


- With evaporative cooling you get improved indoor air quality through its air washing nature.


- Low energy usage; evaporative cooling uses less energy than mechanical refrigeration. Not only will it help you cut energy use but also energy cost. We even offer ways of applying evaporative cooling to already established units through PreCoolers (see link to learn more: https://www.haveacoolday.com/post/precooling-101)


- Low operational costs makes evaporative cooling a great alternative to traditional ventilation‐only systems.     


Okay, we talked about the basic principles of using wind and water, let us talk more about how the media applying to our efficiency and green way to cool. Water applied to the extensive, corrugated media surface and mixes with air which passes through the media. Energy is required to change the liquid water into a vapor, this process called "Evaporation" absorbs heat from the air stream which decreases the air temperature while increasing the relative humidity.






The deep end of the green side of evaporative cooling:


Many materials have been used over the many years of cooling from hogs hair to wood pieces, to the high efficient cellulose paper and fiberglass-based media we use today. The media is wetted from either a drip‐type or spray‐type water distribution system to saturate the media.  The media is corrugated to maximize the contact area between the air and water. The hot air is passed through the media and is cooled as it evaporates the water into the air stream.  In this process, called direct evaporative cooling, the air’s temperature is lowered but the moisture content is increased. In a typical application in Phoenix, AZ summer design conditions are 108°F with 70°F wet bulb temperature, 16% relative humidity and 48 grains of moisture per pound of dry air. As the air is passed through traditional portable evaporative coolers the air is cooled to 78°F with 70°F wet bulb temperature,  68% relative humidity, and 96 grains of moisture. The temperature is significantly cooler and the humidity level is much higher.  All of this cooling is achieved with relatively low energy consumption since the cooling uses only a water pump and a little more horsepower for air movement. Typically, an evaporative cooling system will utilize approximately 80% less energy than a mechanical refrigeration system.


In many areas, the increased humidity levels are a welcome advantage of evaporative cooling as a source of humidification during both summer and winter seasons. However, in many regions and applications higher ambient humidity levels make direct evaporative cooling less effective and comfortable.  Indirect evaporative cooling, a relatively new concept, utilizes the same process of direct evaporative cooling to cool a secondary independent air stream which cools some sort of medium.  This medium then cools the primary independent air stream with no moisture addition to that primary air stream. Common processes include utilization of cross flow plate exchangers, heat pipes, and a system involving a cooling tower and a cool water coil.


Well there you go a better look at how evaporative cooling saves more and uses less. Also, a little more about the different applications and ways you can use evaporative cooling for different environments. There is lots to be said about the green factor found in evaporative cooling. We love this world we call home so why not apply a technology that truly can help you save more, and use less! That is why evaporative cooling is the green way to cool!


Thanks for reading and we hope you have a cool day!



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(303) 816-7075

office@haveacoolday.com

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