HVAC Clearing East Chicago2018-12-04T06:33:13+00:00

HVAC Clearing East Chicago | Expert Power Efficient System Designs

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Don’t be fooled by the name NY-Engineers.Com is your best bet if you need a Full Service Heating Cooling Air Conditioning Furnace (HVAC) Engineering Firm in Chicago Illinois. We’re not only an HVAC Company in or near Chicago but also a leading provider of Mechanical Engineering Engineering services throughout Clearing East Chicago. Call us at (+1) 312 767.6877

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Recently Many individuals have been visiting the NY-Engineers.Com website searching for HVAC Engineering near Chicago. That is due primarily due to the following we have develop in this types of projects. With that said, a lot of building managers from Berkeley to Springfield, IL, do not know that New York Engineers is also the ideal choice for anyone looking for HVAC Chicago, IL.

The pursuit of energy-efficient buildings involves cost effective HVAC system design. This can include systems for HVAC, lighting, architectural enclosure, domestic water heating, and vertical transportation. The loads for that HVAC systems can come primarily from five different places including lighting (cooling), your building envelope (cooling and heating), ventilation (cooling and heating), equipment for program use (cooling) and occupancy (cooling).
The ventilation load is a purpose of either the machines necessary to be able to introduce it in to a space and control contaminant concentration or the amount of individuals who will fill the area. In the vast majority of climates within the eastern and southwestern regions of the usa, to lessen outter air-flow helps you to save energy whenever the outer air is either humid and warm or very cold.
Managing the ventilation rate will probably be dependant upon occupancy which is referred to as a variety of demand control ventilation. It is a everyday sort of energy conservation plan that is used for spaces with irregular or heavy occupancy. Having cooling and heating loads dropped to a minimum can be carried out by making use of a high performance building envelope, occupancy sensors, and high performance lighting that employs daylight response of lighting controls.

Chicago HVAC Engineering services vs HVAC Techs

If you have ever wondered about the difference between a HVAC Technician vs HVAC Technicians, then keep reading:

Chicago HVAC engineers would be the people who manage setting up of air conditioner systems both for residential and commercial buildings. They spend a great deal of their day in offices doing higher level management and arranging of installations nevertheless they do also visit job sites from time to time.

On the other hand, HVAC technicians in Chicago usually do a lot of the hands-on work  that deals with repair and maintenance. A HVAC tech may work together with an engineer to complete a few of the installation work, especially on smaller jobs. Generally HVAC techs do a lot more travel and may spend considerable time changing filters, identifying leaks, doing recharges or getting rid of old and outdated systems that utilize old refrigerants.

HVAC engineers could have a chance to make more decisions about systems that are employed, and so they are definitely the individuals who would offer assistance with one of the most sensible refrigerants and which systems would work best with a larger building. In the trade, there may be some challenge between ‘the suits’ and ‘the ones which get their hands dirty’, but the two jobs do require an excellent knowledge of how air conditioning really works. Lately many individuals have been getting to the NY-Engineers.Com website searching for Best HVAC Chicago. With that said, the focus of our company is to become the to go to company for those searching for a HVAC Contractor in or near Chicago and or any of our other services including Sprinkler System Engineering services. We ask that those searching for additional information about our Heating and Air Conditioning (HVAC) Engineering Firm in Chicago Illinois stops by at our blog.

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HVAC Engineering: Understanding Air Balancing in Ventilation Systems

MEP Engineering Denver

Air balancing is a fundamental design skill in HVAC engineering. Depending on the intended purpose of each building area, it may require negative, positive or neutral pressurization. This is accomplished by adjusting supply and exhaust airflows: a higher air supply causes positive pressure, while a higher air exhaust causes negative pressure.

Although the ideal scenario would be to ventilate all building areas naturally, this is not possible in practice. For example, there is no way to use natural ventilation in areas that are completely surrounded by other rooms, as well as in underground levels. The purpose of ventilation can range from human comfort to facility safety: ventilation in residential and commercial settings is focused on delivering air of breathable quality, while industrial ventilation is often deployed to keep dangerous gases away from certain areas or below a certain concentration.

Indoor spaces are subject to many airflows, and they are normally measured in cubic feet per minute (CFM). We tend to think only about the outdoor air supply and the exhaust air, but consider there is also unwanted air escape (exfiltration) and air gain (infiltration). Unwanted air flows typically occur around the edges of windows or doors.

Poorly balanced ventilation systems often lead to air quality issues, according to HVAC engineering professionals. For example, negative pressurization may draw in pollutants from above the ceiling or from outdoors, and air may rush in suddenly when a window or door is opened. 

Intake and Exhaust Air Calculation

Before air balancing calculations, it is important to know the required air supply and air exhaust. There are many valid procedures, as indicated by the following codes:

  • ASHRAE 62.1 – Ventilation for Acceptable Indoor Air Quality
  • In the case of hospitals, ASHRAE 170 – Ventilation of Health Care Facilities

The total air supply is 60 cfm, while air exhaust is 150 cfm. Since exhaust is higher by 90 cfm, the result is negative pressurization. Increasing supply to balance airflow is acceptable, since the values provided in the code are only minimum values.

Assume all intake airflows are increased to the following values, in order to prevent negative pressurization:

  • Electrical room: 25 cfm
  • Corridor: 125 cfm
  • Storage: 25 cfm

This results in a total air intake of 175 cfm, which is higher than the 150 cfm of exhaust air. This causes cellar areas to be pressurized with respect to the trash room, preventing the spread of unpleasant odours. Since the airflow must be balanced at the end, the extra 25 cfm are released by exfiltration, but trash odour is confined to its intended location.

Troubleshooting Air Balancing Issues in HVAC Engineering

If a ventilation system suffers from air balance issues, do not immediately assume the cause lies in the fans themselves. Consider that system components such as dampers can be damaged, and also that air ducts can get disconnected. When in doubt, the best recommendation is getting a professional opinion from an HVAC design engineer.

When ventilation systems are equipped with variable frequency drives for fan speed control, air balancing is simplified. VFDs can adjust the rpm of both supply and exhaust fans, to match the ventilation load while keeping airflows balanced.

HVAC engineering is a complicated matter that is best approached by engineers that have specialized in this area of expertise. 

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