Controlling Unwanted Noise from the Source to the Receiver
An acoustic panel is one of many names that describe a modular component used to block or absorb noise where it’s unwanted. Also known as a double-walled panel, sandwich panel, insulated panel, thermal panel, double-walled ductwork or plenum wall, this engineered building element contains or reduces sound energy at different stages along the path that sound travels from the source to the receiver.
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Topics:
Acoustics,
Noise Control,
Noise Solution,
Background Noise,
Sound Absorption,
Acoustic Panels,
Sound Masking,
Reverberation Time,
Engineering,
Design Engineering,
Architecture
When You Should – and Shouldn’t – Use These Powerful Devices
Commonly used in both residential and commercial applications, a seven-day programmable thermostat is what sets the weekly schedule for the equipment it is controlling. We often see programmable thermostats connected to home furnaces, for instance; the device’s schedule is programmed for different days of the week to operate the fan within the furnace and any heating or cooling associated with it according to the homeowner’s needs.
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Topics:
Controls,
HVAC Fundamentals,
HVAC,
Engineering
A CFD Classroom Case Study
Obtaining efficient ventilation with overhead mixing systems for applications in heating climates can be a challenge. Not only does the positive buoyancy of the supply air work against the air distribution system, but most overhead mixing systems are designed with low supply air volumes (relative to cooling) and high supply air temperatures (more than 15°F above room temperature).
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Topics:
GRD,
Diffusers,
HVAC,
Engineering,
Design Engineering,
ASHRAE 62,
CFD
Defining Sensible and Latent Heating and Their Importance in HVAC Applications
In the HVAC industry, it is common to hear about having to handle sensible and latent loads to condition a space. Since we tend to associate heating or cooling with a change in temperature, confusion can arise when multiple forms of heating are mentioned. In this post, we’re going to clarify the difference between sensible and latent heating and why the distinction is important in HVAC systems.
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Topics:
Fan Coils,
Heat Transfer,
Cooling Coil,
Condensate,
HVAC Fundamentals,
HVAC,
Engineering,
Design Engineering
Measures to Mitigate Condensation Concerns
More than ever before, engineers, contractors and building owners are choosing chilled beams for their projects. This energy-efficient technology uses the heat transfer capabilities of air and water to provide heating and cooling in a space. But the concept of installing a water coil within the housing of the chilled beam raises some very important questions: will there be condensation, and are drain pans required?
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Topics:
Beams,
Condensate,
HVAC Fundamentals,
HVAC,
Engineering,
Design Engineering