Using Natural Convection to Provide Energy-Efficient Comfort
Chilled beam technology is often separated into two categories: active and passive. As we explored in a previous blog post, active chilled beams take in primary air from an air handler, which is then pressurized and released through a series of nozzles. Passive chilled beams, however, do not have any supply air ducted to them and operate utilizing natural convection. This energy-efficient cooling device is often coupled with other air systems such as underfloor air, displacement ventilation and active chilled beams.
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Topics:
Beams,
HVAC Fundamentals,
HVAC,
Engineering
A Look at What’s New in the USP 797/800 Standards for Pharmaceutical Compounding
United States Pharmacopeia (USP) is a nonprofit organization that was founded in the 1820s by a group of physicians and is enforced by the U.S. Food & Drug Administration (FDA). USP sets standards for the identity, strength, quality and purity of medicines.
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Topics:
HVAC Fundamentals,
HVAC,
Engineering,
Design Engineering,
Critical Environments
Precise and Accurate Airflow Control
Venturi valves are devices designed to control airflow for room pressurization and fume hood air containment. They are most often used in spaces that require precise and accurate airflow control, protecting occupants from hazardous airborne gases and particles through proper ventilation.
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Topics:
Static Pressure,
HVAC Fundamentals,
HVAC,
Engineering,
Design Engineering
An Energy-Efficient Solution for Small-Zone Control
A variable air volume (VAV) diffuser is essentially a ceiling diffuser with a built-in VAV damper and thermostat. Despite its simplicity, this device comes with many benefits and is an effective way to create small-zone comfort for building occupants.
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Topics:
GRD,
Diffusers,
Thermal Comfort,
HVAC Fundamentals,
HVAC,
Engineering,
Design Engineering
Understanding the ASHRAE 170 Requirements for Protective Environment Rooms
A protective environment room, or PE room, is a type of isolation room that is intended to protect an immunocompromised patient from airborne contamination. PE rooms are designed according to the requirements of ASHRAE Standard 170: Ventilation of Health Care Facilities.
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Topics:
HVAC Fundamentals,
HVAC,
Engineering,
Design Engineering,
Critical Environments,
ASHRAE 170,
Filtration
