Leverage the power of simulation on your next building design
High demands are placed on modern HVAC systems to create optimal indoor environments while minimizing energy usage. Consequently, usage of computer-based analysis tools like computational fluid dynamics (CFD) that aid in the design of these systems is becoming more prevalent. With the recent addendum to ASHRAE 62.1 we expect the demand for CFD analyses to increase even further. The change states that a CFD analysis can be used to estimate the ventilation effectiveness value used to determine the outdoor air requirement instead of tables provided in the standard.
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Topics:
Mock-Up,
Thermal Comfort,
HVAC,
Engineering,
Design Engineering,
Engineering Update,
CFD
Understanding the Fundamentals
High-efficiency particle air filters, or HEPA filters, are used for air filtration where room particulate control is of the utmost importance, including in cleanrooms, laboratories, pharmaceutical compounding facilities, protective environment isolation rooms and airborne infectious isolation rooms.
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Topics:
Outlet Conditions,
System Efficiency,
HVAC,
Engineering,
Design Engineering,
Training,
Engineering Update,
Critical Environments,
Filtration
Application of Fan Filter Units in Airborne Infectious Isolation Rooms
Airborne infectious isolation rooms (AIIRs) are used for patients with easily communicable airborne diseases. When there is a shortage of AIIRs, existing patient rooms (or hotel rooms in temporary care facilities) can be converted to negative pressure isolation rooms. Price Fan Filter Units (FFUs) can be used in three configurations to retrofit these existing spaces.
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Topics:
HVAC,
Engineering,
Design Engineering,
Training,
Tech Tip,
Catalog,
Engineering Update,
Critical Environments,
Filtration
Design Considerations for Natatorium Ventilation
Designing a ventilation system for a swimming pool can be tricky. For occupant comfort, these facilities require 40 to 60% relative humidity to be maintained year round. For swimmers, a humidity range of 50 to 60% is most comfortable. However, humidity levels below 50% can significantly increase energy consumption, while humidity levels above 60% can cause damage due to mold, mildew and condensation.
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Topics:
GRD,
Grilles,
Thermal Comfort,
HVAC Fundamentals,
HVAC,
Engineering,
Design Engineering,
Training,
Tech Tip,
Handbook,
ASHRAE 62,
Engineering Update
A Simple & Cost-Effective Device for Zone Airflow Control
The control of air distribution in modern buildings is typically accomplished by the use of air terminal units. A terminal unit is a device that is used to regulate the volume of conditioned primary air from the central air handler to the occupied space. Watch this video to learn more!
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Topics:
Terminals,
System Efficiency,
HVAC Fundamentals,
Design Engineering,
Training,
Architecture
