HVAC Flossmoor2018-12-03T19:57:28+00:00

HVAC Flossmoor | Expert Energy Efficient System Designs

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Do not be misled by our NY-Engineers.Com is your best option if you are looking for Full Service Air Conditioning, Heating & Cooling (HVAC) Engineering Firm in Chicago Illinois. We are not only an HVAC Chicago but also a leading provider of Value Engineering Engineering services in or near Flossmoor. Call us at (+1) 312 767-6877

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Lately huge crowds have been visiting the NY Engineers site in search of Fire Protection Engineering in the Chicago area. That is due because of the following we have develop in this kind of work. With that said, many building owners from Hollywood Brookfield to Riverwoods, IL, don’t know that NY Engineers is also a top contender for anyone looking for HVAC Firm in or near Chicago, Illinois!

The pursuit of energy efficient buildings involves energy efficient HVAC system design. This will include systems for HVAC, lighting, architectural enclosure, domestic water heating, and vertical transportation. The loads for that HVAC systems will come primarily from 5 different places including lighting (cooling), the building envelope (cooling and heating), ventilation (cooling and heating), equipment for program use (cooling) and occupancy (cooling).
The ventilation load is a function of either the machines necessary to be able to introduce it right into a space and control contaminant concentration or the quantity of folks that may fill the place. In the vast majority of climates inside the eastern and southwestern areas of america, to lessen outside air flow helps you to save energy whenever the surface air is either warm and humid or very cold.
Managing the ventilation rate will be dependant upon occupancy which is known as a type of demand control ventilation. This can be a common type of energy conservation tatic that is utilized for spaces with occasional or dense occupancy. Having cooling and heating loads dropped as low as possible can be achieved by making use of a high performance building envelope, occupancy sensors, and high performance lighting that employs daylight response of lighting controls.

Chicago HVAC Engineers vs HVAC Technicians

When you’ve ever discussed the difference between a HVAC Technician vs HVAC Technicians, then read on:

HVAC engineers are the people who oversee setting up of air cooling systems both for residential and commercial buildings. They spend lots of their day in offices doing higher level supervision and preparation of installations however they do also go to job sites every once in awhile.

In comparison, HVAC technicians have a tendency to do a lot of the hands-on work with maintenance and repair. A HVAC technician may assist an engineer to accomplish several of the installation task, specifically for smaller jobs. On the whole HVAC techs do much more travel and could spend a lot of time changing filters, identifying leaks, doing recharges or decommissioning old and outdated systems which use old refrigerants.

HVAC engineers may have a chance to make more decisions about systems that are used, and they also are the folks that would offer advice about the most sensible refrigerants and which systems would work best with a larger building. In the industry, there may be some competition between ‘the suits’ and ‘the ones that will get their hands dirty’, but the two jobs do require a good knowledge of how air-con works. As of late huge crowds have been checking out the NY Engineers website searching for HVAC Supply Chicago. However, the goal of our organization is to be the to go to company for those searching for a HVAC Chicago and or any of our other services including Architectural Engineering Engineering services. We ask that anybody looking for additional details about our Heating & Air Conditioning (HVAC) Engineering Firm in Chicago Illinois checks out at our MEP Engineers blog.

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Using Proper MEP Engineering to Protect Water Booster Pumps from Cavitation

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Booster pumps play a very important role in ensuring a continuous water supply. In the absence of a booster system, most buildings only get a reliable water supply for the first five floors. For this same reason, keeping booster pumps under optimal operating conditions is a very important part of MEP engineering, and one of the main causes of impeller failure is an hydraulic phenomenon called cavitation. This article will provide an overview of cavitation and how it can be prevented.

What is Cavitation?

Everyone knows that water can be boiled with heat, turning it into vapor. However, low pressure can also vaporize water, and this can happen inside a pump if water is not supplied with enough pressure at the intake. When the pressure of a fluid drops below a critical value called the vapor pressure, small bubbles form in the flow, and these bubbles collapse violently once pressure increases again – the phenomenon is called cavitation, because the bubbles are cavities in the fluid.

You may be wondering how a pump reduces fluid pressure, when its actual purpose is to increase it. The answer can be explained with Bernoulli’s principle, which states that a fluid loses pressure as it speeds up or as it rises to a higher elevation. Water speeds up at the pump suction, and its pressure drops momentarily before being increased.

One bubble forming and collapsing does not cause major issues, but consider that thousands are continuously forming and imploding when a pump has severe cavitation issues. The combined shockwaves of all these bubbles gradually erode the pump impeller. When removed, the impeller blades will seem to have corroded, even though cavitation does not involve any chemical processes.

Other than impeller erosion, cavitation has many negative consequences in water booster pumps and other similar systems:

  • Vibration: The ongoing formation and collapse of bubbles not only wears down the impeller. The resulting shockwaves also shake the impeller, inducing vibrations in the entire shaft, with the potential to damage other system components. Seals and bearings are especially vulnerable to vibration.
  • Noise: Cavitation is very noisy due to the imploding bubbles. For a person close to the affected pump, it may sound like there are small rocks or marbles are being pumped along with water.
  • Decreased performance: Cavitation represents wasted energy, and this can be reflected as a reduction in flow or discharge pressure. A sudden drop in pump performance without an evident reason may indicate cavitation.

Preventing Cavitation With Adequate MEP Engineering

The technical specifications for pump manufacturers typically include a value called the Net Positive Suction Head (NPSH) required, which can be defined as simple terms as the minimum water head required at the pump suction for normal operation. If the actual head is above the NPSH required, no cavitation occurs.

In theory, cavitation can be prevented by increasing the suction pressure or by reducing the speed of water as it flows through the pump impeller. In practice, there are many ways to accomplish this effect.

  • Reduce pump speed: Cavitation is less likely at lower RPM values, so a booster pump can be slowed down with a variable frequency drive (VFD), as long as the system continues to meet the pressure and flow requirements in the local plumbing code.
  • Install the pump at a lower level: Static water pressure is higher at the lower levels of a building, so installing it at the lowest elevation possible reduces the chance of cavitation.
  • Reduce temperature: The critical pressure at which cavitation occurs increases as fluid temperature increases. If water must be pumped and heated, make sure the pump is installed upstream from the water heater.
  • Selecting the right pump: Many cavitation issues can be attributed to poor pump selection, and the issue disappears when a pump that matches the application is used.

The best solution for cavitation is not allowing it to occur in the first place, and this can be accomplished by working with qualified MEP engineering professionals from the start of a project. Modifying actual projects is far more expensive and time consuming than editing construction plans and specifications. A high-level professional design will not only prevent cavitation, but also optimal equipment capacity, energy efficiency and local code compliance.

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