HVAC Northfield2018-12-02T19:07:50+00:00

HVAC Northfield | Expert Power Efficient System Designs

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Don’t be misled by the name New York Engineers is the top choice if you are searching for Full Service Heating Cooling Air Conditioning Furnace (HVAC) Engineering Firm in Chicago Illinois. We’re not only an HVAC Chicago but also a leading provider of Architectural Engineering Engineering services near Northfield. Contact us at (312) 767.6877

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As of late huge crowds have been browsing the NY-Engineers.Com site in search of Value Engineering near Chicago. That is due primarily due to the following we have develop in this types of projects. Nevertheless, many general contractors from Lombard to Oak Lawn, are not aware that New York Engineers is also a top contender for anyone searching for HVAC Company in Chicago, IL.

The search for cost effective buildings involves cost effective HVAC system design. This can include systems for HVAC, lighting, architectural enclosure, domestic water heating, and vertical transportation. The loads for your HVAC systems may come primarily from 5 different sources including lighting (cooling), the construction envelope (cooling and heating), ventilation (cooling and heating), equipment for program use (cooling) and occupancy (cooling).
The ventilation load might be a purpose of either the machines required in order to introduce it in to a space and control contaminant concentration or the number of folks who will use the room. In virtually all climates within the eastern and southwestern parts of the US, to lessen outter air-flow can save energy whenever the outer air is either humid and warm or very cold.
Governing the ventilation rate will likely be based on occupancy which is referred to as a variety of demand control ventilation. This can be a everyday sort of energy conservation policy that is used for rooms with occasional or heavy occupancy. Having cooling and heating loads reduced as low as possible can be carried out by making use of a higher performance building envelope, occupancy sensors, and performance lighting that uses daylight response of lighting controls.

Chicago HVAC Engineers versus HVAC Techs

If you’ve ever thought about the distinction between a HVAC Technician vs HVAC Technicians, then please read on:

Chicago HVAC engineers are definitely the individuals who supervise the installation of air conditioning systems for both residential and commercial buildings. They spend a great deal of their work in offices doing higher-level supervision and planning of installations nonetheless they do also visit job sites every now and then.

In contrast, HVAC technicians in Chicago have a tendency to do a lot of hands-on work with maintenance and repair. A HVAC technician may deal with an engineer to perform a number of the installation task, especially on smaller jobs. On the whole HVAC technicians do a lot more travel and might spend a lot of time identifying leaks, changing filters, doing recharges or decommissioning old and outdated systems which use old refrigerants.

HVAC engineers might have the chance to make more decisions about systems that are being used, and so they will be the people that would offer assistance with the most sensible refrigerants and which systems would work best with a much bigger building. In the industry, there is certainly some challenge between ‘the suits’ and ‘the ones that will get their hands dirty’, but both jobs require an effective familiarity with how air conditioner works. Lately a lot of individuals have been crawling the New York Engineers website looking for HVAC Certification Chicago. With that said, the focus of our company is to become the to go to company for those searching for a HVAC Chicago and or any of our other services including Construction Engineering Engineering services. We ask that anyone looking for additional information about our Air Conditioning, Heating & Cooling (HVAC) Engineering Firm in Chicago Illinois visits at our Engineers Reports 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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