HVAC Engineering Sheffield Neighbors Chicago, IL2018-10-30T12:36:50+00:00

What Can Our HVAC Engineers in Sheffield Neighbors Chicago Do For You?

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When you re looking for a fast responding HVAC Engineering in Chicago? Your best bet is to call is NY-Engineers.Com. Not only for HVAC Firms in Chicago but also Construction Engineering and Protection Engineering throughout Sheffield Neighbors Chicago. Call us at (+1) (312) 767-6877

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Over the last decade many real estate investors throughout Rotterdam, NY already know that New York Engineers is the engineering firm to contact when you are searching for Fire Protection Engineering in NY. What many local building owners have not realized is the New York Engineers is also your top choice if you’re searching for HVAC Engineering services in Sheffield Neighbors Chicago, IL. If you need more information on what Sheffield Neighbors Chicago HVAC design engineers do? It is a unique trade with an a detailed set of responsibilities. An HVAC design personel will be asked to work through numerous problems to resolve the original issue. This career needs superior skill, competence, and the capability to manage time prudently.

As soon as an HVAC contractor is certified to operate, they will get employed by an engineering company and start to functions on many heating, cooling, and refrigeration systems. Their task is usually to create new and replacement selections based upon their customer’s requirements. Each customer is going to have an original set of needs whether or not it involves developing codes or personal performance expectations. Using all of this material, the engineer goes on a journey towards making something that is energy-efficient, eco-friendly and well suited for the setting it’s going to be used in – (residential/industrial/commercial). They are usually in charge of the primary creations and overseeing the particular installation.

On the whole, an HVAC engineer in Sheffield Neighbors Chicago will likely be seen working in a design business or maybe in a consulting firm according to their many years of expertise. Many engineers transition in to a consulting job because they become older and gain a better idea of what is expected of them.

Comparison: HVAC Technician vs HVAC Engineer

HVAC Technician and HVAC Engineer tend to be mistaken for the other. Still, they have got different job functions in terms of managing HVAC systems. It is crucial that you be aware of the difference both as being a parton also as an expert

An HVAC technician in Sheffield Neighbors Chicago is a more active job, meaning they are usually seen on the way to a owner’s home to inspect their present system. They frequently take care of the repairs, installations, and general care which is needed from time to time. The majority of their effort is done together with your client, which implies they must learn how to interact with people in the correct manner.

With an HVAC engineer, they are responsible for designing a new HVAC system and ensuring it fits what a client is after. It needs to fit just what the property owner needs whether or not this has to do with their setup, property, or everything linked to new system. They are also introduced to talk on HVAC creations to make sure all things are consistent with the latest standards. This is the reason they are able to wind up spending time in consulting firms or at neighborhood engineering companies. This is actually the distinction between these occupation; HVAC Engineer Versus HVAC Technician. There is a great possibility you would like additional details on the HVAC Engineering services in Sheffield Neighbors Chicago, IL by NY Engineers you should 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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