HVAC Engineering New Chinatown Chicago, IL 2018-10-13T05:29:29+00:00

What Can Our HVAC Engineers in New Chinatown Chicago Do For You?

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Since coming to market a lot of building owners throughout Harrison, NY already know that NY-Engineers.Com is the engineering firm to call if you’re ooking for Value Engineering in New York City. What many local construction companies have not realized is the NY-Engineers.Com is also your top choice if you are searching for HVAC Engineering services in New Chinatown Chicago, Illinois. If you need to learn more about what New Chinatown Chicago HVAC design engineers do? This can be an exclusive profession which has an extensive selection of responsibilities. An HVAC design engineer will be asked to get through a number of concundrums to resolve the core issue. This career requires special expertise, competence, and the opportunity to manage time wisely.

As soon as an HVAC engineer is certified to operate, they are going to join up with an engineering firm and start to work on several cooling, heating and refrigeration systems. Their task would be to draw up new and additional selections based on their customer’s requests. Every customer will have a unique set of wishes whether or not it is related to developing codes or individual performance prospects. Using all of this data, the engineer goes on a journey towards creating something that is eco-friendly, energy-efficient and suitable for the place it might be placed in – (residential/commercial/industrial). They are generally accountable for the first drafts and managing the actual installation.

In general, an HVAC design engineer in New Chinatown Chicago will likely be seen working with a design company or maybe in a consulting team depending on their numerous years of expertise. A great deal of engineers transition into a consulting job while they grow older and acquire a better idea of what’s required of them.

Comparison: HVAC Engineer Versus HVAC Technician

HVAC Engineer and HVAC Technician are usually confused with each other. However, they have separate tasks in terms of managing HVAC systems. It is important to understand the difference both as being a parton also as a specialist

An HVAC technician in New Chinatown Chicago carries a more hands-on job, which suggests they are usually seen visiting a client’s building to inspect their current system. They often take care of the installations, repairs, and general upkeep which is needed from time to time. Most of their work is done together with the customer, which means they should understand how to communicate with people in the right way.

Having an HVAC engineer, they are accountable for designing a new HVAC system and ensuring it fits just what a client wants. It has to fit just what the home owner wants if it has to do with their setup, property, or everything else linked to new system. They are also brought in to talk on HVAC designs to make certain all things are in step with modern standards. This is the reason they could find themselves hanging out in consulting assignments or at local engineering companies. This is the difference between both of these career paths; HVAC Technician Versus HVAC Engineer. Even with all of this information you would like more details on the HVAC Engineering services in New Chinatown Chicago, Illinois by New York Engineers we invite you to stop by at our blog.

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Advantages of Electronically Commutated Motors in Electrical Engineering

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Electronically commutated motors (ECMs) can achieve significant energy savings in electrical engineering applications where fractional horsepower is required. Although NEMA Premium Efficiency motors with variable-frequency drives provide the most efficient solution to drive equipment above 1 hp, induction motors are outclassed by ECMs as the rated horsepower is reduced.

What is an Electronically Commutated Motor?

Although ECMs are designed to run with an AC power supply, it is important to note they are actually direct-current motors with permanent magnets on their rotor. Unlike conventional DC motors, which create a rotating magnetic field with a combination of brush contacts and slip rings, ECMs achieve the same effect with a voltage rectifier and an electronic control circuit. As a result, the friction and sparks associated with brush contacts are eliminated, and this is one of the reasons why ECMs are so efficient. They also have a longer service life than brushed motors, since the wear associated with sparks and friction is eliminated. Compared with other common types of fractional horsepower motors, ECMs are the top choice in terms of efficiency:

  • Shaded-pole motors are very common and more affordable, but their efficiency is very poor, going below 20% in some cases.
  • Permanent-split capacitor (PSC) motors have an average efficiency of 40%, which means they outclass shaded-pole motors. In terms of efficiency, they are an intermediate option between shaded-pole motors and ECMs.
  • ECM efficiency is normally above 60%, which means they consume one-third of the energy used by shaded-pole motors on average.

ECMs can also be manufactured with built-in speed control circuits, allowing them to operate at reduced speed without relying on an external VFD. It is also important to note that ECMs do not suffer a drastic reduction in their efficiency when operating below rated RPM. Fixed-speed ECMs are also available for applications where speed control is not necessary.

Electronically Commutated Motors in Electrical Engineering Applications

ECMs are normally the most efficient option in fractional horsepower applications, but they tend to deliver the highest savings when used in air-conditioning and refrigeration systems. Being more efficient that shaded-pole and PSC motors, they also dissipate less heat, and the reduced heating effect helps AC and refrigeration systems operate more efficiently. This effect applies for all air-conditioning or refrigeration components that are found inside the conditioned space, such as air handlers and evaporators.

As an example, assume a cold-storage room has an evaporator unit with five shaded-pole motors, consuming 900W each. They are replaced with ECMs that only consume 300 W each.

  • 600 W are saved per motor, for a total of 3,000 W.
  • However, these 3,000 W are also subtracted from the refrigeration load. If the system operates with a coefficient of performance of 3, an extra 1,000 W of electric power are saved.
  • In other words, this upgrade saves 3 kW in motor power and 1 kW thanks to refrigeration load reduction.

Keep in mind this is just a simple example, and each electrical engineering project requires a detailed analysis to know the exact savings. However, the heating reduction benefit applies for all cases where ECM motors are deployed in air-conditioned or refrigerated locations.

The brushless design of ECMs makes them quieter than their less efficient counterparts, which also provides a comfort advantage. In business applications, the silent operation of ECMs helps employees concentrate better. ECMs are also lighter than other types of fractional horsepower motors, which makes them easier to install.

Electronically Commutated Motors in Ventilation Systems

As previously stated, shaded-pole and PSC motors are inefficient. Also, three-phase motors with VFDs are impractical for fractional horsepower applications, unable to offer the efficiency that characterizes them in larger systems. Ventilation systems represent an excellent opportunity to deploy ECMs, for two main reasons:

  • Fans with fractional horsepower are common, which means they are often driven by shaded-pole or PSC motors.
  • Many fans have intermittent operation, which represents a chance to use ECMs running at reduced speed. For example, running a fan 80% of the time saves 20% of the energy, while running it at 80% speed saves nearly 50%.

ECMs are a highly recommended upgrade for furnace fans, since they can achieve a much more uniform temperature distribution with their speed control, in addition to offering the energy savings that characterize them.

Payback Period of ECM Upgrades

Like with many energy efficiency measures, the financial benefit of an ECM upgrade changes depending on project conditions. The project payback period can only be calculated with precision after a detailed analysis by a professional energy consultant, but in general the following results can be expected:

  • Replacing shaded-pole motors normally yields a faster payback period than replacing PSC motors, since the efficiency gain is higher. Of course, there can be exceptions; replacing a PSC motor that is used frequently may yield higher savings than upgrading a shaded-pole motor that is only used moderately.
  • ECMs can also be an attractive option in appliances that require speed control. Other types of motors may suffer a drastic efficiency reduction at partial speed.
  • As previously mentioned, the energy savings are higher when ECMs are deployed in air-conditioned or refrigerated spaces.

The financial return of an ECM upgrade can also be enhanced if there are incentive programs at the project’s location. The incentive is calculated based on yearly energy savings, at a rate of $0.16/kWh.

Conclusion

Electronically-commutated motors (ECMs) can achieve significant energy savings in fractional horsepower applications, especially when they replace shaded-pole motors. However, like with any energy efficiency upgrade, professional guidance is highly recommended when defining the project scope and specifications.

When upgrading to ECMs, the return on investment is higher in some cases, and it others the payback period may be too long to justify the upgrade. Ideally, upgrades should focus on where the highest return is obtained from each dollar spent upfront. Recruit the help of an electrical engineering expertise to help you properly apply the information shared in this article to your project.

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