This is the time of year when staying warm matters. From the houses that we live in to the offices where we work, there are many times when the heating in a space is important. Interestingly enough, however, behind the heat and energy that it takes to keep a building both comfortable and operational there is also an elaborate advantage engineering chiller system that is required to keep the largest of buildings running. In fact, the latest research indicates that chiller systems are the single largest consumers of electrical usage in most facilities given that they consume more than 50% of the total usage. It should come as no surprise then that in places as diverse as digital data centers and health care facilities it takes a combination of circulation heaters and advantage engineering chillers to keep a building running the way that it should.
With many different kinds of designs and purposes, advantage engineering chillers, pressure vessels, and heating exchange designed equipment are responsible for not only the comfort level in a building, but also the energy that is needed to run the electronics and electricity.
Heat Exchangers Play Important Role in the Facilitation of Many Kinds of Buildings
With the latest heat exchange designs and the newest and most efficient advantage engineering chiller systems, large buildings are able to run both efficiently and safely. Staffed with sometimes single engineers or a full staff of maintenance people, these exchange systems help equipment generate the power that they need, while also cool these large pieces of equipment so that they remain safe and run for many years.
Although the entire system can be difficult to explain, there are basically three types of heat exchangers: parallel-flow or counterflow configuration, cross-flow configuration, and shell-and-tube configuration. In parallel flow heat exchangers, both the tube side fluid and the shell side fluid flow in same direction. In these systems, the two fluids enter the heat exchanger from the same end with a large temperature difference. In comparison, in cross flow heat exchangers, one fluid flows through tubes and second fluid passes perpendicularly around the tubes. Shell and tube heat exchangers are used in various industrial process applications because they can remove process heat and feed water preheating, but are also able to cool hydraulic and lube oil. This type of heat exchanger works by one fluid running through the tubes, and another fluid flowing over the tubes, the same as through the shell, to transfer heat between the two fluids.
The maintenance of all three of these heat exchangers is essential and requires close observations by many people who are looking for specific lists of indicators to know that these systems are operating correctly. Consider some of these other facts and figures about the heat exchanger and cooling systems that are used to keep all of the buildings and facilities that we rely on running safely and efficiently:
- Allowing close temperature approaches of up to 20 C, the very close proximity of process fluids within a diffusion bonded heat exchanger core creates an exceptionally high heat transfer rate with correspondingly high efficiencies as much as 98%.
- At different temperatures and in thermal contact, heat exchangers are basically used to transfer heat between two or more fluids, between a solid surface and a fluid, or between solid particulates and a fluid.
- For any heat transfer to occur two fluids must be at different temperatures and they must come into thermal contact. Heat exchange involves convection in each fluid and conduction through the separating wall. Heat can only flow from hotter to cooler fluids, as proven by the second law of thermodynamics.
- With proper maintenance, the shell portion of the heat exchanger can often last 40 or more years without corrosion or something to seriously damage the shell.
- When the fluids in a heat exchanger passes each other more than once, the heat exchanger is called a multi-pass heat exchanger. If the fluids pass each other only one time, the heat exchanger is called a single-pass heat exchanger.
- Water cooled and air cooled are the two types of chillers, and water-cooled chillers are typically installed indoors and, as a result, last longer than air-cooled chillers.