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 Building Ventilating per ASHARE Requirements
by Siouzanna Terlitskaia | October 15, 2009
Category: Health and Fitness
Many of the apparent health symptoms are vague and common to both the office and home environment. Guidelines or standards for permissible personal exposure limits to pollutants within office buildings are very limited.
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 Blowers and Fans for Industrial Applications
by Oleg Checthel | October 08, 2009
Category: Business / Solo Professionals
The flow and pressure properties are the main differences between a fan and a blower. While fans deliver air in an overall direction that is parallel to the fan blade axis, blowers deliver air in a direction that is perpendicular to the blower axis. Hence, fans can be configured to deliver a high flow rate, working against low pressure while blowers to deliver a relatively low flow rate against high pressure. Centrifugal blowers can be squirrel cage type, have a forward curved wheel or a backward curved wheel.
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 Industrial Process Ventilation
by Oleg Chetchel | October 07, 2009
Category: Business / Entrepreneurialism
Industrial fans include several types such as duct fans, roof and ceiling ventilators, wall mounted fans, pressure blowers, and freestanding units with different mounting options. For extreme conditions and plants, drum fans can be used to move even larger amounts of air. These types of fans come w
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 Ventilation by Forced Draft
by Oleg Chetchel | October 02, 2009
Category: Business / Productivity
Forced ventilation is used to control indoor air quality. Excess humidity, odors, and contaminants can often be controlled via dilution or replacement with outside air. However, in humid climates much energy is required to remove excess moisture from ventilation air.
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Industrial Local Exhaust Systems
by Oleg Checthel | October 01, 2009
Category: Business / Outsourcing
Fans will operate more efficiently if they are installed with a length of straight duct entering and leaving the fan. A rule of thumb is to provide a straight run of duct at least six duct diameters long on the entrance side of the fan and at least two duct diameters long on the exit side.
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 Fans and Blowers for Industrial Process Ventilation
by Siouzanna Terlitskaia | September 21, 2009
Category: Business / Industrial Mechanical
Air conditioning can often become too large of an expense for industrial areas, but the good news is that an industrial fan can bring some much needed relief in this case.
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Fans and Blowers
by Oleg Chetchel | September 18, 2009
Category: Business / Industrial Mechanical
Fans are classified into propeller, tube axial and vane axial styles, and each type has different characteristics and different areas of application. Propeller fans ususally consist of only a motor and propeller and therefore are the simplest among all.
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 Forced Draft Ventilation
by Siouzanna Terlitskaia | September 17, 2009
Category: Business / Productivity
Ventilating is the process of changing or replacing air in any space to control temperature or remove moisture, odors, smoke, heat, dust and airborne bacteria. Ventilation includes both the exchange of air to the outside as well as circulation of air within the building.
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 Blowers and Fans by Canada Blower
by Siouzanna Terlitskaia | September 10, 2009
Category: Business / Industrial Mechanical
Air moving fans and blowers utilize power from a motor to generate a volumetric flow of air at a given pressure, and are considered low-pressure air pumps.
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 Industrial Air Make Up Gas-Fired Units
by Oleg Cthetchel | June 15, 2009
Category: Business / Outsourcing
Direct Gas-Fired Air Heating Systems are a class of equipment utilized primarily in industrial and commercial environments to provide for worker comfort. To a lesser extent, these systems are used to condition air for process and finishing applications such as material drying and paint curing.
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 General Ventilation with Power Tube Fan
by Siouzanna Terlitskaia | April 30, 2009
Category: Business
Sufficient make-up air should be provided to balance exhaust from general ventilation and process ventilation. Usually several Power Tube Fans will be required, located to distribute air throughout the plant. If additional tempering of make-up air in specific plant areas becomes necessary, unit heaters can be added.
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 New Air Make Up Unit Design
by Oleg Cthetchel | April 30, 2009
Category: Business
In temperate climates or during mild weather, moderate amounts of make-up air can be supplied by simply opening windows or overhead doors. However, this is usually not the case in industrial and commercial facilities. Forced ventilation Make-up air is required.
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 Industrial Air Handling Units
by Susanna Terlitkaia | April 30, 2009
Category: Home Improvement / Heating and Air Conditioning
Headaches and nausea among personnel due to inadequate ventilation. In temperate climates or during mild weather, moderate amounts of make-up air can be supplied by simply opening windows or overhead doors. However, this is usually not the case in industrial and commercial facilities. Forced ventilation Make-up air is required.
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 Air Handling Units for Environment Control
by Siouzanna Terlitskaia | April 29, 2009
Category: Health and Fitness
While there are no facts and figures to show how many buildings provide the correct amount of makeup air, it can be stated that there are probably a great many that do not have sufficient makeup air. And there\'s no one solution that is available for every building. Each building must be analyzed with a careful air balance calculation and evaluated based on the diversity of sources of exhaust air and infiltration.
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 Industrial Air Handling Units for Climate Control
by Oleg Tchechel | April 28, 2009
Category: Business / Entrepreneurialism
Makeup air is vitally important to the health and welfare of a building and its occupants. If the proper amount of makeup air is not introduced into a space, consequences can range from exterior doors that are hard to open or close, to buildups of carbon monoxide in the space, to fume hoods that don't actually control the contaminants they were intended to control. In addition, the outside air that is brought into a building to "make up" the amount of air that has been exhausted has a very significant impact on cooling and heating capacities.
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 Power Tube Type PT Make-Up Air System
by Siouzanna Terlitskaia | April 22, 2009
Category: Business / Sales
Normally several PT Fan systems are required for a building, depending on the size of the building, volume of make-up air required, size of PT Fan models selected. Additional heating, if required, may be furnished from conventional type space unit heaters positioned near the distributing PT tubes.
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 Direct-Fired Industrial Makeup Air Units
by Oleg Tchechel | April 22, 2009
Category: Business / Industrial Mechanical
Gas-Fired Pressurization Units move large quantities of air at low temperature differentials (usually 50° or less), which is a strategy to minimize temperature stratification in the large spaces they are employed to heat. The equipment is typically mounted on the roof of the facility or at grade on elevated supports to ensure that the supply air is delivered high. The high air delivery allows for a longer “throw” of the air, thereby requiring less equipment to cover the required floor area. The most common fuel is natural gas, however, units can be converted to burn propane. There are two primary categories of gas-fired AHUs: indirect-fired and direct-fired.
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 Direct-Fired Industrial Air Handling Units
by Siouzanna Terlitskaia | April 21, 2009
Category: Business / Customer Service
Gas-Fired Pressurization Units move large quantities of air at low temperature differentials (usually 50° or less), which is a strategy to minimize temperature stratification in the large spaces they are employed to heat. The equipment is typically mounted on the roof of the facility or at grade on elevated supports to ensure that the supply air is delivered high. The high air delivery allows for a longer “throw” of the air, thereby requiring less equipment to cover the required floor area. The most common fuel is natural gas, however, units can be converted to burn propane. There are two primary categories of gas-fired AHUs: indirect-fired and direct-fired.
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 Industrial Air Make-Up Units for Indoor Air Control
by Oleg Tchechel | April 13, 2009
Category: Home Improvement / Appliances
Direct Gas-Fired Heating Systems may be built in a number of configurations. They may be curb mounted as horizontal rooftop systems with down or horizontal discharge or in a vertical configuration for mounting on a pad outside of a building, with air ducted to the interior. They may also be located inside a building, suspended from hangers or mounted on support steel. Various manufacturers can supply any physical configuration required.
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 Industrial Air Handling Units for Indoor Air Control
by Siouzanna Terlitskaia | April 09, 2009
Category: Reference and Education / Science
Direct Gas-Fired Heating Systems may be built in a number of configurations. They may be curb mounted as horizontal rooftop systems with down or horizontal discharge or in a vertical configuration for mounting on a pad outside of a building, with air ducted to the interior. They may also be located inside a building, suspended from hangers or mounted on support steel. Various manufacturers can supply any physical configuration required.
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 Commercial and Industrial Air Handling Units
by Siouzanna Terlitskaia | April 03, 2009
Category: Business / Sales
Air-Handling Units for Make-Up Air and Space Pressurization Applications have the following features:
- Outlet Temperature is usually monitored with a probe mounted near the outlet of the unit.
- Discharge Air Temperature is set at the control panel or using a remote control station.
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 Commercial and Industrial Air Handling Units
by Oleg Tchechel | April 03, 2009
Category: Shopping and Product Reviews
Return Air Units are widely used for direct fire space heating applications. They can be supplied with a maximum 80% return/20% fresh air, per ANSI standards. Other options include a 50/50 arrangement. “80/20” Units are configured to modulate from the 80% return/20% fresh air to up to 100% outside or fresh air. 50/50 units are generally designed to switch from 50% return / 50% fresh to 100% fresh, with no modulation between.
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 Industrial Gas Fired Air Makeup Units
by Oleg Tchechel | April 01, 2009
Category: Real Estate
Constant air supply with variable-speed exhaust is recommended where a hot or contaminated environment must be ventilated while maintaining room pressure. Unit may be interlocked to that it only operates with the exhaust system.
Variable Air Supply with constant-speed exhaust may be preferred where fume exhausters or fume hoods are used to provide critical ventilation of contaminants from a “clean” environment while make-up air is used to maintain a positive pressure to prevent infiltration.
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Industrial Gas Fired Air Makeup Units
by Oleg Tchechel | April 01, 2009
Category: Real Estate
Constant air supply with variable-speed exhaust is recommended where a hot or contaminated environment must be ventilated while maintaining room pressure. Unit may be interlocked to that it only operates with the exhaust system.
Variable Air Supply with constant-speed exhaust may be preferred where fume exhausters or fume hoods are used to provide critical ventilation of contaminants from a “clean” environment while make-up air is used to maintain a positive pressure to prevent infiltration.
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 Industrial Gas Fired Air Handling Units
by Siouzanna Terlitskaia | March 31, 2009
Category: Home Improvement / Appliances
Constant air supply with variable-speed exhaust is recommended where a hot or contaminated environment must be ventilated while maintaining room pressure. Unit may be interlocked to that it only operates with the exhaust system.
Variable Air Supply with constant-speed exhaust may be preferred where fume exhausters or fume hoods are used to provide critical ventilation of contaminants from a “clean” environment while make-up air is used to maintain a positive pressure to prevent infiltration.
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 Gas Fired Industrial Air Handling Units
by Oleg Tchechel | March 27, 2009
Category: Business
Return Air Units are a design that includes a damper to bring room air back into the unit. These re-circulate indoor air through a unit with a minimum of outside air added. This type of unit is able to provide air movement for indoor comfort and reduced temperature stratification, but with a minimum of heat added to the building.
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 Direct Fired Industrial Air Handling Units
by Siouzanna Terlitskaia | March 13, 2009
Category: Business / Small Business
A Direct Gas-Fired Air-Handling Unit AHU may be used as a primary or secondary source to heat a building space. When used for this application, a room thermostat controls unit outlet air temperature.
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 Industrial Air Handling Units
by Siouzanna Terlitskaia | March 09, 2009
Category: Home Improvement / Heating and Air Conditioning
Direct Gas-Fired Make-up Air Units supply tempered and filtered air to the indoor environment. In summer, a direct-fired unit may be used as an air handler, with the heater disabled. By adding a DX or evaporative cooling section to the unit, it may be used to supply conditioned air year round.
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 New Direct Gas Fired Air Handling Unit Design
by Siouzanna Terlitskaia | March 05, 2009
Category: Business
NISCO Co. has developed a new efficient and reliable air make-up unit designs for industrial building ventilation. In industrial plants where there is a high density of employees and many manual operations involved, an improvement in the environment can produce substantial benefits in terms of increased production, reduced errors, and a decline in complaints and absenteeism among employees.
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 New Approach to Building Ventilation and Cooling
by Siouzanna Terlitskaia | January 09, 2009
Category: Real Estate / Homes
A very effective way to overcome the discomfort of a hot, stuffy room is to create a breeze. The circulation of air over a person's body immediately causes a cooling effect on the skin. When air is passed over a moist surface, it will evaporate some of the moisture and thus lower the temperature.
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ventilating