MEP Service in Old Irving Park Chicago, IL.

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In search of a top rated MEP Chicago? The one to go to is NY-Engineers.Com. Not only for MEP Engineering in Chicago but also Architectural Engineering and Sprinkler System Engineering in Old Irving Park Chicago. Contact us at 312 767-6877

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Building owners throughout Eastchester, NY have come to depend on New York Engineers for a wide range of engineering services ranging from Sprinkler Engineering to Value Engineering. For this reason real estate investors in Old Irving Park Chicago will tell you that if you are seeking a excellent MEP Engineering firm in Old Irving Park Chicago, Illinois you need to consider New York Engineers.

Chances are, you might have walked through any specific type of building and seen the results of MEP Engineering. Basically, MEP concentrates on the mechanical, electrical and plumbing facets of engineering. Basically, the name already gives rise to the most common and spot on notion of exactly what is MEP. This article may go into some infor of what is MEP Engineering.

So far as the mechanical part is involved, for residential and commercial engineering, this relates to anything that moves. In addition its entails the application of complex and easy machines and also other mechanical mechanisms to carry out certain tasks. Some ordinary mechanical engineering tasks which is often noticed daily are kitchen or bath exhausts, HVAC units, cooling and heating air systems, heating & cooling equipment and systems which handle increasing the energy efficiency.

The electrical facet of construction is centered on the functions, components, electrical safety, and above all, the wiring of the building. Engineers in this particular branch try very hard to ensure the layout of any building are made to bring enough power to every individual component in a safe manner where all of the electrical codes are met. Some familiar electrical engineering tasks can be obtained from the lighting design, modifying the voltage and distributing the power to every single component within the building which demands a supply.

So far as plumbing, there is a wide array of plumbing components which constitute the final model of any building. Plumbing engineering goes deeper than only toilets, faucets, and sinks, and houses many behind the scene devices. These being the sewage and drainage lines along with the buildings local water supply and how it flows.

As we conclude this article we have now just reviewed what is MEP Engineering. MEP Engineering is managed in the construction industry. And, assists in completing the simply ignored technical aspects of any building.

Hiring an MEP Engineering Firm in Old Irving Park Chicago is Necessary for Large Construction Projects

Hiring an MEP engineering firm in Irving Park Chicago, ILO, could have everything to do with the success of your construction project. These experts will help offset the fee for making this sort of hiring decision in relation to energy saving alone. When you are speaking about large commercial structures, energy management is a vital topic of discussion. It’s time to discover some other great reasons for using MEP engineering firm in Marynook Chicago, Illinois.

Engineers have everything to do with the physical reliability of the building. If you may well imagine, that means the hidden is very vital. Design not only deals in aesthetics but the basis of a building and its workings. That may be yet another solid logic why using an MEP engineering firm will likely be good for any project.

Think about all of the pipes and plumbing. Consider the air conditioning systems and the importance of getting all its components inside the exact places. Energy saving was discussed, and energy competence is another significant term to note. Energy competence concerns your HVAC system, and it plays a huge role in energy maintenance in general.

Think about your building’s foundation. Consider the installation of security alarms as well as the safety and security measures put in place along the entire structure. With everything mentioned so far, it’s reliable advice that a great many aspects of building construction could be either ignored or underestimated without MEP pros at the job.

Now with all you have read you will be looking for the very best MEP engineering company available, right? It’s very obvious that the best engineers have to be working in the large building of commercial structures. Customised will be the correct term to use to describe the way these engineers will alter a construction project to meet the needs of the operations. There is a great possibility you would like more information about the MEP Engineering services in Old Irving Park Chicago, IL by NY Engineers you should take a look at our blog.

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How Construction Engineers are Improving HVAC Efficiency in Commercial Buildings with Variable Frequency Drives

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HVAC systems come in various configurations that differ significantly from each other. For example, an air conditioning system based on packaged rooftop units is drastically different from a chiller plant. However, HVAC installations have a common denominator: they use electric motors that are subject to variable loads. Regardless of whether these motors are used to drive compressors, water pumps or fans, construction engineers understand that there is a great opportunity to save energy by optimizing part-load operation.

In general, running a motor at partial speed is more energy-efficient than running it intermittently at full speed.

  • Intermittent operation only provides linear savings. For example, a cooling tower fan with a duty cycle of 80% consumes 20% less energy than an identical fan operating full-time.
  • Reducing motor speed provides cubic savings.. On the other hand, slowing down a fan to 80% speed reduces energy consumption by nearly 50%. The average airflow is the same as that of a fan running at full power 80% of the time, but savings are boosted significantly thanks to speed control.

Speed control can be accomplished with variable-frequency drives (VFD), and they have a broad range of applications in HVAC systems due to the cyclic nature of loads. It is important to note that VFDs are also known as variable-speed drives (VSD), adjustable-frequency drives (AFD) or adjustable-speed drives (ASD).

Fractional horsepower motors in small-scale HVAC systems can also achieve significant savings with speed control. The main difference here is that electronically commutated motors (ECMs) are more cost-effective than VFDs in these applications.

Ask a Construction Engineering Expert: How Does Variable Frequency Drive Work?

As explained by electrical engineering textbooks, the speed of an electric motor is defined by the power supply frequency and its internal construction. For example, a motor running at 1800 RPM with the 60 Hz USA power supply would run at 1500 RPM in the UK, where the frequency is 50 Hz. Thus, if a motor is suitable for operation at reduced frequency, its speed can be ramped down during part load conditions to achieve energy savings. VFDs are connected between the power supply and the motor, adjusting voltage and frequency as a means of speed control.

In applications where only single-phase power is available, VFDs can be used to integrate three-phase motors while achieving the energy efficiency benefits: there are models capable of producing a three-phase voltage from a single-phase input, while adjusting magnitude and frequency to control motor speed.

In addition to improving energy efficiency, VFDs allow motors to be soft-started by gradually ramping up the voltage and frequency, as opposed to directly applying full voltage at 60 Hz. Electric motors draw from five to eight times their rated current when started directly, and the voltage drop that results from the inrush current may damage sensitive equipment.

The main limitation of VFDs is that they produce a phenomenon called harmonic distortion, where high-frequency currents are induced in branch circuits. However, this can be controlled with a properly-specified harmonic filter; this device absorbs current distortions at the point of consumption, preventing their propagation throughout the installation.

VFD Applications in HVAC Systems

In most cases, VFDs are deployed by construction engineers in HVAC systems to control the speed of blower fans, pumps or compressors.

Cooling Tower Fans

The main purpose of a cooling tower is removing the heat from a water circuit, which may be used in turn for process cooling or for a chiller plant. Cooling towers use fans to establish an airflow, improving heat removal through convection. These are open discharge fans, where there is no ductwork creating resistance to airflow; hence, the savings opportunity through speed control is significant.

When a VFD is deployed for a cooling tower fan, speed is normally controlled based on water temperature. Rather than cycling the fan on and off, it can be driven at reduced speed so that the water returning to the chiller or process is kept at a constant temperature – as previously explained, reduced-speed operation is far more efficient than intermittent operation at full speed.

Air-Handling Units and Packaged Rooftop Units

Unlike the fans in cooling towers, those used in AHUs and packaged RTUs blow air into a duct system, which offers higher resistance and requires a specific static pressure and airflow to be established. These ducts may have several outlets with variable-air-volume (VAV) boxes, where airflow is controlled individually for each zone with a damper.

Without a VFD, the blower fan in the AHU or RTU operates at full speed, and each VAV box is adjusted individually. This is an inefficient approach, however – if neither of the VAV boxes is fully open, energy is being wasted in the form of extra pressure. On the other hand, if the blower is equipped with a VFD, an interesting energy-saving strategy becomes possible:

  • Blower speed can be gradually reduced while VAV boxes are opened incrementally, to keep the airflow and temperature constant.
  • The temperature of different zones is unaffected but pressure is reduced, saving energy.
  • Speed reduction continues until one of the VAV boxes reaches the fully open position. At this point it is not possible to reduce speed further without affecting indoor temperatures.

There is also a comfort benefit with this control strategy: the reduced pressure drop translates into less noise, making indoor environments more comfortable.

Speed Control for Water Pumps

Water circuits are a key element of many HVAC installations, including those that use chillers, boilers and water-source heat pumps. Since HVAC loads are variable, it is often necessary to adjust the water flow depending on total system load. There are three main ways to achieve this:

  • Choke Valve-A choke valve is installed in line with the flow, and as implied by its name it regulates flow by closing partially. This control method is simple, but the resulting pressure loss represents a considerable waste of energy.
  • Recirculation Valve-With this approach a valve is installed on a parallel recirculation circuit, and it is opened gradually to divert a part of the water flow, reducing the flow in the main circuit. In this case, however, there is also a significant energy loss because the recirculated water represents pumping power.
  • Pump Speed Control– The most energy efficient approach is to install a VFD on the pump motor. If a reduced water flow is required, it is just a matter of reducing the pump speed accordingly. With no pressure or recirculation losses, the savings achieved are significant. This setup also uses a choke valve for convenience, but it is normally kept in the fully open position, since the VFD regulates flow.

Chillers with Variable-Speed Compressors

In chilled water air conditioning systems, the chiller is by far the piece of equipment with the highest energy consumption. Therefore, installing the most efficient chiller model that can be afforded is highly recommended.

Energy efficient chillers have helical rotary compressors, capable of adjusting their speed with a VFD, depending on cooling needs. Some models may feature multiple individual compressors to achieve enhanced flexibility and increased part-load efficiency.

When a chiller is highly efficient, the control strategy is normally based on maximizing its capacity rather than running it at the lowest possible set point. The savings achieved by reducing the load on complementary systems tend to be far greater than the extra consumption at the chiller. There are exceptions, of course, and only monitoring and control can offer the correct answer 100% of the time.

Integrating the Entire HVAC System

Equipping all motors in an HVAC system with VFDs is a first step towards energy efficiency, but the best results can only be achieved with central control system, capable of assessing building conditions and adjusting HVAC set points in real time.

The interaction between a chiller and a cooling tower is a great example of how control engineering and VFDs can be applied to HVAC installations:

  • Reducing the cooling tower fan speed increases the cooling load on the chiller.
  • The reverse also applies: reducing refrigeration power at the chiller may require more heat to be rejected by the cooling tower.

If the chiller has a high efficiency, the best option in most scenarios is reducing the cooling tower load. However, only a control system can balance the operation of both components in real time. Ideally, the control system should be able to determine the set point for each individual VFD so that power consumption is minimized at the total system level.

Of course, the performance of an HVAC system starts from the design phase. For optimal results, make sure you work with licensed and qualified construction engineers and other HVAC professionals. Installing an efficient and automated HVAC system from the start is much less expensive than upgrading an existing installation.

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MEP Engineers Old Irving Park Chicago! When you re looking for a competent MEP Chicago in Firm? Your best bet is to reach out to is New York Engineers. Not only for MEP Engineering in Chicago but also HVAC Engineering and Sprinkler System Engineering in Old Irving Park Chicago. Call (+1) (312) 767-6877 Several developers throughout North Massapequa, New York have come to rely on New York Engineers for a wide [...]

2018-09-06T11:05:04+00:00