HVAC Systems
Chilled Beam
A hydronic system, which condition the air by use of fresh supply air, recirculated air in the room, and water (either chilled or chilled and heated)
Advantages
A hydronic system, which condition the air by use of fresh supply air, recirculated air in the room, and water (either chilled or chilled and heated)
Advantages
- This system typically allows for smaller ductwork and smaller air-handling units than a variable-air-volume (VAV) system
- Airflow rate for active chilled beams is typically higher than the minimum outdoor airflows required by ASHRAE
- Higher construction cost compared to VAV
- Not a common or well known system
- Building must have good control of humidity to prevent condensation on chilled beam surface
Combination Home Air Heating and Cooling
With these systems, the primary components would be the system itself, such as the air handling unit, air conditioner etc. The secondary components are the ducts that distribute the treated air throughout a space Advantages
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High Temperature Radiant Heating
This system involves elements that are heated by an energy source. The elements then emit energy on the infrared spectrum, this heats objects and occupants directly without the need of heating the air first. Advantages
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Variable Air Volume (VAV)
Variable Air Volume is a type of HVAC system, which supplies a varied flow of air at a constant temperature. It not only controls both heating and cooling, but also humidity by moderating the amount of water (chilled or steam) that is applied to the air. Gas content is regulated through ventilation, and the outside is filtered before entering the space being heated or cooled, which reduces particulate matter. Advantages
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Constant Air Volume (CAV)
Constant Air Volume is a type of HVAC system, which supplies a constant airflow at different temperatures to meet the thermal loads of a room. CAV system is able to control multiple zones using a single mixing box, called terminal box. These boxes use dampers to vary the air temperature supplied in a zone. Advantages
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Ceiling Fan
Ceiling Fans use evaporative cooling by circulating air around a room. These are very common in residential settings because they can be easily combined with other systems to achieve the overall efficiency of the HVAC system. Advantages
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Active Solar
Active Solar system uses solar energy to heat a fluid, liquid or air, and transfers the solar heat directly to the interior space or stores it for later use. Advantages
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Rooftop Packaged Unit
A system that usually contain a CAV or VAV along with humidifying equipment, pressure control, and filtration equipment all in the same module Advantages
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Radiant Floor Heating
Tubing is placed under the floor and a heat source such as a water heater or boiler provides hot water which then flows through the tubes Advantages
Disadvantages
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Convective Heating
Convection is the heat transfer from one place to another by the movement of fluids (liquids and gases). Convective Heating can be natural or forced. These systems include fireplaces, heaters, and radiators Advantages
Disadvantages
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