Hiring a HVAC Engineering Firm in Grand Crossing Chicago

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Searching for the best HVAC Chicago? Your best bet is to call is NY-Engineers.Com. Not only for HVAC Firms in Chicago but also Architectural Engineering and Sprinkler System Engineering in Grand Crossing Chicago. Contact us at 312 767-6877

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MEP Engineering Basics

A great number of construction companies throughout Merrick, NY already know that NY Engineers is the engineering company to contact when you’re looking for HVAC Engineering in NY. What many local developers have yet to realized is that NY-Engineers.Com is also your top choice if you’re looking for HVAC Engineering services in Grand Crossing Chicago, Illinois.

Employing a HVAC Firm in Grand Crossing Chicago requires the cabability to investigate and understand what’s required for your setup. Every individual will probably be altered when it comes to the hiring procedure and it’s better to think about the next qualities.

1) Know-how: A great company will always have qualified professionals onboard to assist with HVAC needs. These professionals are not just qualified but are going to have years of skill in the business. This keeps everything simple, streamlined, and as well-organized as you want them to be. Patrons will feel confident with an expert available to help you.

2) Range of employment: Look into their track record to learn how they have done in the past. It will help clarify whether the company is really a passionate team who has great results. If you find issues with their portfolio then It is likely to sort into your set up. Focus on this at the earliest opportunity!

These characterize the strategies for working with a top-tier company and making sure the solution is up to scratch. Otherwise, the organization can end up having more issues than answers. Get started with these pointers and write a short list to have the process easier.

For this reason most engineers are hired as consultants since they gain skilled. There, they might be only accountable for the next element in the design process and may give understanding of what works or what doesn’t.  Most HVAC systems are founded by using an Grand Crossing Chicago HVAC design engineer.

Key HVAC Design Engineer Responsibilities

An HVAC engineer in Grand Crossing Chicago is usually granted a selection of different responsibilities according to the business, its requirements, and how the job unfolds.

In general, the HVAC design engineer tasks will certainly contain a number of chores which includes inventing different HVAC systems. Every task will likely be exclusive because customers bring customized needs. These bids can include the size of their system, how it is gonna perform, and the performance metrics they’re after with a brand new HVAC system.

An experienced Grand Crossing Chicago HVAC engineer will sit back, recognize these needs, and map out an entire HVAC system with high-quality design instruments. Everything is noted during this process and that’s what HVAC design engineers are relied on to perform. As well as designing the HVAC system, the contractor has to ensure the installation is installed correctly and fits in step with what the client needs.

This is the reason most engineers are employed as consultants because they get practice. That is when, they are only responsible for the following element of the process and could offer insight on what works or what does not.  Most HVAC systems are creaded with the aid of an HVAC design engineer in Grand Crossing Chicago. Even with all of this information you would like additional info on the HVAC Engineering services in Grand Crossing Chicago, Illinois by NY Engineers we invite you to stop by at our Grand Crossing Chicago Building Commissioning blog.

New Building Commissioning Related Article

Architectural Engineers Detail Ventilation System Configurations

Local MEP Engineering

Human activity generates a broad range of compounds that become dangerous in high-enough concentrations, and pollutants from outdoor sources can also degrade indoor air quality. Architectural engineers are often charged with the job of preventing this from occurring as much as possible.

Ventilation systems keep these substances at low levels by constantly renewing indoor air, and they also contribute to keeping moisture within the range of 30 to 60 percent as recommended by ASHRAE. Without ventilation, it would not be possible to keep indoor environments comfortable and healthy.

Natural ventilation relies on wind currents, outdoor temperature and other weather conditions to supply fresh air. The advantage of natural ventilation is that it comes for free, and in new buildings it is possible to optimize architectural design to maximize its effects. However, natural ventilation is uncontrollable, and generally insufficient to fully meet the requirements of modern buildings.

Normally, to meet ASHRAE standards and local building codes, mechanical ventilation must be deployed. Depending on their configuration, whole-house ventilation systems can be classified into three main types:

  • Exhaust ventilation systems, which only use extractor fans.
  • Supply ventilation systems, which only use injector fans.
  • Balanced ventilation systems, which use both injector and extractor fans.

Balanced systems can be enhanced with energy-recovery ventilation, a technology that exchanges energy between the supply and exhaust airflows to maximize performance and minimize the overall running cost of the system.

Exhaust Ventilation Systems

As implied by their name, exhaust ventilation systems only deploy extractor fans. When the system starts to run, it creates a negative pressurization effect in occupied spaces, drawing in fresh outdoor air to renew that which is exhausted. It is important to note, however, that exhaust ventilation is not possible in air-tight buildings, since outdoor air must be allowed to leak in. If the building envelope has been tightened with caulking and weather stripping, exhaust ventilation must be complemented with intake vents.

Exhaust ventilation systems have a single set of fans and ducts, which makes them affordable while reducing their installation time and cost. Energy expenses are relatively low because there is only one set of fans in operation, and maintenance is simplified as well. The system layout can be designed to target specific areas where pollutants are generated, ensuring they are removed before they spread indoors.

Exhaust ventilation generally achieves the best results in cold and dry climates, where outdoor air does not require dehumidification. It is not recommended for tropical and mixed climates, because warm and humid outdoor air is drawn in without control, driving up cooling and dehumidification expenses. Also, keep in mind that depressurization draws air from all surrounding spaces, with little control over pollutant content. In general, architectural engineers recommend exhaust ventilation for cold weather, and when outdoor air pollution is low.

Another risk of exhaust ventilation is backdraft, which occurs when a combustion-based appliance suddenly draws in a lot of air, potentially causing a flashover. Since exhaust ventilation causes negative pressurization and does not control air supply, there is an increased chance of backdraft.

Supply Ventilation Systems

Supply ventilation only uses injector fans, pressurizing rooms and causing indoor air to leak out constantly. The main advantage of supply ventilation is control, since outdoor air can be filtered, humidified or dried as needed. In addition, the pressurization effect prevents the inflow of pollutants from surrounding spaces or from outdoors.

Another benefit of supply ventilation is that it eliminates the risk of backdraft from combustion appliances due to positive pressurization. Installation, operation and maintenance expenses are also reduced thanks to the simple system configuration.

Supply ventilation is better suited for tropical or mixed climate conditions, where dehumidification and filtering are often required. This configuration tends to cause trouble in cold weather, since the pressurization effect can cause condensation of indoor air humidity, leading to moisture accumulation and its common side-effects: furniture damage and the proliferation of mold, bacteria and dust mites.

Balanced Ventilation Systems

A balanced ventilation system is the result of combining exhaust and supply ventilation: both airflows can be controlled, providing the benefits of both system configurations. Of course, this comes at a higher installation and operation cost, since there are now two sets of fans and ducts.

Balanced ventilation is suitable for all weather conditions, and airflows can be adjusted to provide any pressurization effect as required – positive, negative or neutral. The recommended locations for each set of ducts are the following:

  • Supply ducts should focus on areas where occupants spend most of their time, including living rooms and bedrooms. This ensures that these areas always have a supply of fresh and clean air.
  • Exhaust ducts should focus on areas where moisture and humidity are released frequently, such as kitchens, bathrooms, laundries and boiler rooms.

Of course, it is possible to install supply and exhaust rooms for every room, but system costs are increased significantly. With the approach presented above, system costs are optimized without compromising performance.

Energy-Recovery Ventilation: Architectural Engineers Improve the
Efficiency of Balanced Ventilation

Energy-recovery ventilation consists on exchanging energy between the supply and exhaust air, so that overall HVAC costs are minimized. These systems can be classified into two main types:

  • Heat-Recovery Ventilation (HRV)systems only exchange heat between the supply and exhaust airflows.
  • Enthalpy-Recovery Ventilation (ERV)systems exchange both heat and moisture.

Summer Operation

In the summer, outdoor air typically requires cooling and dehumidification. However, when air is exhausted, it is still cooler and drier than the supply air; therefore, a part of the energy used for cooling and dehumidification is lost.

  • The use of a heat exchanger (HRV) can improve energy efficiency: the exhaust air is used to precool the supply air without mixing both airstreams.
  • If an ERV system is used, moisture is also transferred from the supply air to the exhaust air, further improving air-conditioning efficiency because there is less moisture to remove.

Winter Operation

During the winter, HVAC needs are reversed because outdoor air typically requires heating and humidification. The operating principle of HRV and ERV is the same, but the direction in which heat and humidity are transferred is inverted.

  • The exhaust air is warmer, and the heat exchanger captures a part of that thermal energy to preheat the supply air.
  • If ERV is used, moisture is also retrieved from the exhaust air and provided to the supply air.

General Recommendations for HRV and ERV

It is important to note that HRV and ERV systems are significantly more complex than the ventilation systems presented before. They can only be installed and serviced by qualified personnel, which increases their cost of ownership. Compared with a basic balanced ventilation system, HRV and ERV systems have a higher running cost, but overall HVAC expenses are reduced.

HRV and ERV systems increase in effectiveness where temperature  and moisture extremes are reached during the summer or winter, or when heating fuel costs are high. Their benefits are diminished under moderate weather conditions, where the added running cost may be higher than the savings achieved – balanced ventilation is a better alternative in these cases.

Spot Ventilation: A Complement for Whole-House Ventilation

Spot ventilation consists on using exhaust fans to extract pollutants and humidity at the room where they are released, preventing them from being spread throughout other indoor spaces. In residential settings, spot ventilation is most commonly used in bathrooms and kitchens to meet the minimum exhaust air levels established in both the area mechanical codes and ASHRAE standards:

  • Bathrooms require 50 cfm of intermittent ventilation or 20 cfm of continuous ventilation.
  • Kitchens require 100 cfm or intermittent ventilation or 25 cfm of continuous ventilation.

Spot ventilation can be a great complement for supply ventilation systems, removing pollutants from key areas. This combination provides many of the benefits of a balanced ventilation system without having to install a full set of exhaust fans and ducts. According to experienced architectural engineers, the only disadvantage of this combination is that HRV and ERV systems are unfeasible, since there is no point where heat or moisture can be exchanged between airflows.

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What Can Our HVAC Engineers in Grand Crossing Chicago Do For You? When you're searching for a dependable HVAC Engineering in Chicago? The one to go to is NY-Engineers.Com. Not only for HVAC Engineering in Chicago but also Value Engineering and Sprinkler System Engineering in or near Grand Crossing Chicago. Contact us at (+1) 312 767.6877 Since 2011 many construction companies throughout Hauppauge, New York already know that New York Engineers [...]

2018-10-25T17:42:48+00:00