Four Approaches for a Quieter System
There is a misconception that VAV diffusers are noisy, but a review of their performance data shows that they have a pressure versus noise relationship similar to that of all diffusers. The difference is that VAV diffusers have a built-in VAV damper and can close to a minimum, possibly building up pressure in the system. It is the higher pressure that makes diffusers noisy, and because of this, a method of pressure control should be used in every VAV diffuser system.
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Topics:
Diffusers,
Pressure Drop,
HVAC Fundamentals,
HVAC,
Engineering,
Design Engineering,
Tech Tip
Understanding Volumetric Offset and Direct Pressure Control
Maintaining a pressure relationship between a target and reference space provides control over the direction of air leakage that occurs between the spaces. Controlling the direction of this “transfer air” helps to prevent the migration of unwanted particles, which can directly impact occupants and products in or near such spaces.
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Topics:
HVAC Fundamentals,
HVAC,
Engineering,
Design Engineering
Your Complete Guide to Fundamental Industry Knowledge
The original intention of the Price Engineer’s HVAC Handbook was to create a “polished compilation” of existing design guides and examples from the Price Catalog. In typical Price fashion, we dedicated more than 20,000 internal hours over the course of two years to create an industry-first reference guide on air distribution – complete with 1,350 pages and more than 3,000 illustrations.
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Topics:
System Efficiency,
Heat Transfer,
Psychrometrics,
Thermal Comfort,
HVAC Fundamentals,
HVAC,
Engineering,
Design Engineering,
Handbook
Essential Strategies for Cleanroom Design
Cleanrooms are a growing market worldwide within the HVAC industry. Cleanrooms are specialized spaces where the control of airborne particles is critical to the processes occurring there. Great care must be taken to avoid the introduction and generation of particles as well as to remove existing particles as quickly as possible.
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Topics:
Induction,
HVAC Fundamentals,
HVAC,
Engineering,
Design Engineering,
Critical Environments,
Filtration
Providing Optimal Performance and Flexibility for Your Project
HVAC systems today are more varied and complex than ever, and when each project brings new challenges and unique requirements, we need solutions that are highly adaptable. The BCHD Direct-Drive Horizontal Blower Coil is a made-to-order solution that offers flexibility between a central station air handler and a traditional fan coil unit. With a large airflow operating range, a plethora of options and a compact footprint, the BCHD provides optimal performance in a wide variety of applications.
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Topics:
Fan Coils,
HVAC Fundamentals,
HVAC,
Engineering,
Design Engineering
