hvac

HVAC is an acronym standing for Heating, Ventilation and Air Conditioning and it refers to technologies and equipment for automotive or indoor comfort. Since this technology is based on principles of physics and material sciences such as thermodynamics, heat transfer and fluid mechanics, designing HVAC systems is an important sub-field of mechanical engineering.


HVAC systems are important components in the design of any industrial buildings, from office buildings to living quarters, as well as any type of construction where a tight environment regulation is required, which includes aquariums, underground facilities, submarines, airplanes and many more. The main environmental aspects controlled via HVAC systems are temperature, air humidity and general air quality.

The advantages of using HVAC technologies are unquestionable, especially in closed environments otherwise extremely difficult to inhabit. Because they are so effective and can increase human comfort, HVAC systems have become a rule in modern residential buildings and cars. Consequently, many different types of heating systems have been developed to cater to our needs, some of which can perform multiple functions - such as central heating for colder climates, or forced air systems that can provide heating during winter, and air conditioning during warmer seasons. Most houses and offices will be furnished with systems cleverly adapted to a climate specific to the area. For example, Yukon heating systems would be well adapted to subarctic weather where winters are long and warmth production is the main requirement, while Houston air conditioning systems should be adapted to hot and long summers specific to the subtropical climate of Texas, while also providing heating for cool winters.

Ventilation is extremely important in densely populated closed environments such as office buildings, and it includes both the exchange of air with the outside and the circulation of air inside the building. The purpose of this is to replenish oxygen, control temperature, while removing moisture, odors, smoke and dust. Natural ventilation will replace the air in a building with fresh outside air, and can be done via windows or trickle vents, while forced ventilation will employ an air handling unit to perform the task mechanically. Ventilation is usually paired with air conditioning as part of a building's HVAC system, to provide optimum comfort for inhabitants. The main purpose of air conditioning systems is to remove heat, which is typically achieved during the refrigeration cycle. Air Conditioning systems will often contain a reversing valve, which enables them to produce warm air during colder seasons.

You'll find bloggers talking about HVAC at sites like cusd.cornell.edu and jacobsschool.ucsd.edu.

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Latest blogosphere posts tagged “hvac”

 

• Reduce Your Dependence on Air Conditioning

  
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  Back in time, there were many simple and sustainable things you could do to keep the sweats at bay when the heat was bearing down, but these days we simply flip a switch and indulge in the coolness, and guzzle up huge amounts of energy while we do so. We are forgetting the fact that [...]
  1 day ago

• Cooling your Home Effectively: 5 Air Conditioner System Myths Debunked (Guest Blog by Polansky Heating & Air)

  
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  When it comes to your HVAC system, there are a lot of myths floating around, ranging from ideas about how your air conditioner should run it to how it should be maintained. Thus, since it’s important to know which ones are true and which are bunk so that your electricity bill doesn’t skyrocket, here are the top ...
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• Guide to a Green Home

  
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  This Guest Post was written by Frank Newhouse, a freelance writer who studies ways that he and his neighbors can reduce their environmental impact. He currently writes for AC Florida , an HVAC resource for Miami area residents. English: A unique energy-efficient home built in place of a historic house in 2009 ...
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• DPR Makes Its Arizona Office Net-Zero

  
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  DPR Construction has retrofitted its own Phoenix Regional Office to achieve net-zero energy consumption. DPR was both the owner and contractor for the renovation project, turning a circa-1972 abandoned retail boutique into an office that produces as much or more energy than it consumes. The building has been certified ...
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• Choosing The Correct HVAC Contractor

  
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  What Are the Health Threat of Weathers When you are afflicted with discomfort because of weather and season change, it is advisable for you to invest on an excellent cooling and heating machine at home. There are times we cannot regulate the temp. Winter can sometimes result in cough, cold and fever. In certain ...
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• Max Payne fullversion game

  
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• David Gray Heating & Air

  
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  David Gray Heating & Air Inc. is proud to serve the Jacksonville, FL area as a full-service air conditioning contractor. Our company put your comfort as a top priority. Located at 6491 Powers Avenue #2, we offer same day heating & air conditioning service to residential and commercial customers. David ...
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• Frost Brothers Heating & Air

  
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• Keeping Up with the Industry| Homewood, Markham, Robbins

  
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• Review: The Inside Scoop on Inspection Cameras

  
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• Quebec Natatorium Uses Geothermal, Reduced Refrigerant HVAC, Heat Recovery

  
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• Contemporary And Valueable Material Choices For Alexandria HVAC Ducts

  
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• Good Advice On How To Do Plumbing Right

  
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• Congratulations to our April Sweepstakes Winner!

  
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  Congratulations to William and Sherry Webber, the winners of our April sweepstakes. The Webbers won a case of HVAC filters and a $50 AMEX gift card. You could be our next winner! Click here and enter to win our May sweepstakes for 10 movie passes to Regal Cinemas ($100 value)!  
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• Review: Festool TI 15 Impact/Drill Driver

  
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• Baxi Boiler Problems…Or Issues of Application & Execution

  
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• Detroit’s Smart Buildings Program

  
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• Makita Xtract Vac: This Vacuum Stays Clean

  
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• Common Issues with Fairfax, VA Commercial HVAC Systems

  
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  Whether you run a business or own a commercial property, you need to make sure that your HVAC system is in good working order and that it is operating efficiently. Commercial heating and cooling systems, as well as refrigeration and other food service equipment , require special care due to their size and complex ...
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