HVAC Engineering Wentworth Gardens Chicago, IL 2018-10-24T18:29:45+00:00

What Can Our HVAC Engineers in Wentworth Gardens Chicago Do For You?

How To Become A Fire Protection Engineer

For more than 10 years a lot of property owners throughout Spring Valley, New York already know that NY-Engineers.Com is the engineering firm to call when you are ooking for Construction Engineering in NYC. What many local property owners have not realized is the NY-Engineers.Com is also your top choice if you’re searching for HVAC Engineering services in Wentworth Gardens Chicago, Illinois. If you want to learn more about what Wentworth Gardens Chicago HVAC design engineers do? This is a unique task that has an extensive list of obligations. An HVAC design contractor will have to get through numerous problems to eliminate the original issue. This task requires superior expertise, proficieny, and the capability to deal with time cleverly.

As soon as an HVAC contractor is licensed to operate, they may join up with an engineering company and begin to operate many cooling, heating and refrigeration systems. Their role would be to draw up new or replacement choices depending on their customer’s requests. Each client is going to have a unique set of wishes whether or not it involves developing codes or personal performance anticipations. Using all of this material, the engineer goes on a ride towards creating something that is energy-efficient, eco-friendly and suitable for the location it is going to be utilized in – (industrial, commercial or residential. They usually are responsible for the original drawings and overseeing the exact installation.

Generally, an HVAC design engineer in Wentworth Gardens Chicago will be seen working with a design business or in a consulting team depending on their numerous years of skill. Most engineers transition right into a consulting job since they grow older and acquire a better idea of what is required of them.

Comparing HVAC Engineer Versus HVAC Technician

HVAC Technician and HVAC Engineer tend to be mistaken for the other. Yet, they may have different tasks in relation to managing HVAC systems. It’s crucial that you understand the variance both as being a customer also as an expert

An HVAC technician in Wentworth Gardens Chicago is a more practical job, which suggests they are usually seen going to a customer’s house to deal with their existing system. They frequently take care of the repairs, installations, and over-all keep that is required every now and then. Nearly all of their effort is done alongside the buyer, meaning they have to discover how to interact with people in the correct manner.

With the HVAC engineer, they are accountable for designing a new HVAC system and making sure it fits exactly what a customer needs. It must fit what the house owner needs whether or not it involves their setup, property, or anything else associated with new system. Also, they are brought in to check on HVAC creations to be certain all things are consistent with the latest standards. That is why they can end up hanging out in consulting firms or at neighborhood engineering firms. That is the difference between these two occupation; HVAC Technician Versus HVAC Engineer. There is only so much you can save this page if you would like more information on the HVAC Engineering services in Wentworth Gardens Chicago, IL by NY-Engineers.Com we invite you to take a look at our Wentworth Gardens Chicago Engineering Reports 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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