HVAC Chinatown Chicago2018-11-22T17:15:47+00:00

HVAC Chinatown Chicago | Expert Energy Efficient System Designs

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Don’t be misled by our New York Engineers is your best bet if you are looking for Full Service Heating and Air Conditioning (HVAC) Engineering Firm in Chicago Illinois. We’re not only an HVAC Firm in Chicago but also a leading provider of Sprinkler System Engineering services in Chinatown Chicago. Contact us at (312) 767.6877

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Lately A lot of individuals have been visiting our site looking for Fire Protection Engineering near Chicago. That is due because of the reputation we have built in this types of projects. With that said, a lot of building owners from Hazel Crest to Waukegan, Illinois, are not aware that NY-Engineers.Com is also a top contender for anyone looking for HVAC Firm in or near Chicago, Illinois

The search for energy efficient buildings involves energy efficient HVAC system design. This will include systems for architectural enclosure, domestic water heating, lighting, HVAC, and vertical transportation. The loads for your HVAC systems should come primarily from five different sources including lighting (cooling), the building envelope (cooling and heating), ventilation (cooling and heating), equipment for program use (cooling) and occupancy (cooling).
The ventilation load might be a function of either the instruments needed in order to introduce it in a space and control contaminant concentration or the number of folks that can occupy the place. In virtually all climates inside the southwestern and eastern regions of america, to minimize outter air-flow helps you to save energy whenever the exterior air is either warm and humid or very cold.
Controlling the ventilation rate is going to be determined by occupancy which is referred to as a variety of demand control ventilation. This really is a everyday sort of energy conservation tatic that is used for spaces with irregular or heavy occupancy. Having heating and cooling loads reduced as low as possible can be accomplished by utilizing an increased performance building envelope, occupancy sensors, and performance lighting that utilize daylight response of lighting controls.

Chicago HVAC Engineering services vs HVAC Technicians

If you have ever discussed the distinction between a HVAC Technician versus HVAC Technicians, then read on:

HVAC engineers are the people that supervise the installation of air-con systems for both residential and commercial buildings. They spend lots of their day in offices doing more impressive range organization and arranging of installations nevertheless they do also stop by job sites every now and then.

But, HVAC technicians have a tendency to do a lot of the hands-on work with repair and maintenance. A HVAC tech may assist an engineer to do a few of the installation task, particularly for smaller jobs. Generally HVAC technicians do much more travel and could spend lots of time identifying leaks, changing filters, doing recharges or decommissioning old and outdated systems that use old refrigerants.

HVAC engineers could possibly have a chance to make more decisions about systems that are employed, and so they are the people that would offer assistance with the most sensible refrigerants and which systems would best suit a greater building. In the trade, there may be some challenge between ‘the suits’ and ‘the ones that get their hands dirty’, but both jobs do require an effective familiarity with how air conditioning does work. Nowadays many individuals have been getting to our website looking for things like HVAC Supply Chicago. Nevertheless, the goal of our organization is to become the number one choice for anyone looking for a HVAC Contractor in or near Chicago and or any of our other services including Sprinkler Design Engineering services. Furthermore everybody looking for additional information about our Air Conditioning, Heating & Cooling (HVAC) Engineering Firm in Chicago Illinois visits at our Value Engineers blog!

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Using Proper MEP Engineering to Protect Water Booster Pumps from Cavitation

Fire Protection Engineering UMD

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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