HVAC The Loop Chicago2018-11-24T19:59:37+00:00

HVAC The Loop Chicago | Expert Power Efficient System Designs

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Do not be misled by our NY-Engineers.Com is your best bet if you are searching for Full Service Heating Cooling Air Conditioning Furnace (HVAC) Engineering Firm in Chicago Illinois. We are not only an HVAC Company near Chicago but also a leading provider of Architectural Engineering Engineering services in or near The Loop Chicago. Call 312 767-6877

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Lately Hundreds of individuals have been browsing our site searching for Mechanical Engineering in or near the Chicago area. That is due primarily due to the reputation we have built in this types of projects. With that said, many builders from Elk Grove Village to Mt Prospect, do not know that New York Engineers is also the ideal choice for anyone in search of HVAC Contractor in Chicago, IL!

The pursuit of power efficient buildings involves energy-efficient HVAC system design. This may include systems for architectural enclosure, domestic water heating, lighting, HVAC, and vertical transportation. The loads for the HVAC systems can come primarily from five different bases including lighting (cooling), your building 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 instruments required to be able to introduce it in a space and control contaminant concentration or the number of individuals that may fill the space. In nearly all climates in the southwestern and eastern parts of the united states, to minimize outter ventilation helps you to save energy whenever the exterior air is either warm and humid or very cold.
Governing the ventilation rate will probably be dependant upon occupancy which is called a form of demand control ventilation. This is a common type of energy conservation plan that is utilized for homes with occasional or heavy occupancy. Having cooling and heating loads dropped to a minimum can be accomplished by making use of a high performance building envelope, occupancy sensors, and performance lighting that exploits daylight response of lighting controls.

Chicago HVAC Engineers versus HVAC Techs

If you’ve ever wondered about the difference between a HVAC Technician versus HVAC Engineers, then continue reading:

HVAC engineers are definitely the people that run setting up of air conditioning systems both for residential and commercial buildings. They spend lots of their work in offices doing advanced level supervision and preparation of installations however they do also visit job sites every now and then.

In contrast, HVAC technicians in Chicago often do more of the hands-on work  that deals with repair and maintenance. A HVAC technician may work together with an engineer to perform a few of the installation task, particularly for smaller jobs. On the whole HVAC techs do considerably more travel and may spend a lot of time identifying leaks, changing filters, doing recharges or decommissioning old and outdated systems which use old refrigerants.

HVAC engineers could possibly have the opportunity to make more decisions about systems that are employed, and they also are the people who would offer assistance with the most sensible refrigerants and which systems would be perfect for a larger building. In the industry, there may be some conflict between ‘the suits’ and ‘the ones which get their hands dirty’, but the two jobs do require a good familiarity with how air-con does work. In recent times many people have been checking out our website looking for HVAC West Chicago Il. However, the focus of our company is to become the top option for anyone seeking a HVAC Companies in or near Chicago and or any of our other services including Electrical Engineering Engineering services. Furthermore anybody looking for additional info about our Air Conditioning, Heating & Cooling (HVAC) Engineering Firm in Chicago Illinois stops by at our 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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