HVAC Supports

by

Owen Gibson

An HVAC, which stands for heating, ventilation, and air conditioning, is the technology of an indoor, automotive environmental comfort. HVACs are designed while using the principles of fluid mechanics, thermodynamics, and heat transfer.

Heating

There are many different kinds of heating units. A central heating unit is beneficial in cold areas, and they are utilized to heat a home or office. They transfer heat by way of ductwork, piping, or a radiator to help transfer or force hot air into a area. Some buildings use furnaces or boilers with regard to indoor heating. Proper ventilation needs to be used for this equipment to safeguard from carbon monoxide. Carbon monoxide occurs when there is insufficient oxygen in the atmosphere. A heating unit may use many different technologies. Fossil fuels are generally used such as oil or propane within a furnace or boiler.

Ventilation

Ventilation is the changing or the replacing of air to a room to control the temperature and remove anything unsafe that is in the room. This procedure not only ventilates the air inside to the outside, it also circulates the air within the building. Proper ventilation makes sure that the building has top quality air. Otherwise a building may get mold, mildew, or odours. Plus airborne viruses or diseases is going to be harder to control without ventilation. To control the ventilation unit is attached to the ductwork.

Air Conditioning

Air conditioners do the contrary of heaters. They are used to cool off a space or building. An Ac unit provides cooling, ventilation, and humidity control by using mechanical refrigeration. They may use water, ice, or air for a refrigerant. Some modern units will use a chemical refrigerant. The refrigerant starts in the gaseous state where a compressor causes the gas to formulate high pressures and temperatures. The gas is then released to a condensing where the warm dissipates in outside air where it becomes a liquid. After the liquid evaporates it dates back to a gas. This procedure draws in heat in the surrounding air.

HVAC

Many commercial buildings require an HVAC system to maintain the temperature and quality of air. Commercial buildings that possess a flat roof need special equipment place in the HVAC. A rooftop HVAC is installed applying HVAC roof supports. HVAC supports keep the HVAC unit from just one or damaging the roof. They support the body fat of the unit so that the HVAC does not create a hole in the roof and also makes sure that rain, snow, and hail do not pool around the HVAC unit.

PHP Systems/Designs is the leader for roof HVAC duct support systems. At PHP, we engineer rooftop

HVAC supports

and duct support systems with code-compliant designs.

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Fossils: The Remnants Of The Past

by

Bobby Buys

Fossils are amongst the most fascinating and mysterious phenomena on earth. Explanations about the origins of fossils have been offered since the early 11th century and many theories about fossils exist today. Here\’s a snapshot of the basics of fossils.

What Are Fossils?

Fossils are impressions or remnants of animals and plants that lived on Earth thousands of years ago. These remains can be parts of animals such as bones, teeth, hair, skin, shells and feather, parts of plants such as leaves and roots, and things made by animals such as footprints and even excreta! In order to be considered a \’fossil\’ a plant or animal remain needs to be at least 10,000 years old!

How Are Fossils Formed?

Fossil formation is somewhat of a miracle. When animals and plants die, their bodies are decomposed rather quickly back into the earth by bacteria or are consumed by scavengers. So, it takes an incredible amount of luck for the remains of a plant or animal to be preserved by nature into a fossil. Fossils can be formed in many ways.

Internment: Remains of animals and plants need to be quickly buried in the soil. More and more soil deposits compress the remains to a point that hard body parts (bones, teeth) become encased by soil. Bones and teeth start decaying and mineralised water creeps into them, replacing the chemicals with soil minerals. After thousands of years, this process results in a rock-like copy of the animal or plant, called a fossil!

Refrigeration: Plants and animals can be frozen in permafrost and become fossilized over millions of years.

Replacement: Cell walls of dead animals and plants can be dissolved over time and then replaced by minerals.

Are Fossils Rare?

Millions of fossils have been discovered all over the world, which can lead you to believe that fossils are pretty common. However, billions of creatures have lived on planet Earth in the past 550 million years of animal life, and only a very small percentage of these creatures are eventually turned into fossils. Thus, fossils are extremely rare, contrary to popular belief.

Are Fossils Traded or Collected?

Yes, many people collect fossils as a hobby or simply for their incredible scientific significance. Amateur fossil collectors also engage in the buying and selling of fossils through fossil clubs and even online fossil sale websites. However, whether you want to buy or sell fossils or collect them, you will most likely have to abide by several rules and legal requirements.

Fossils have fascinated people for hundreds of years, especially those who are interested in the nature and origin of our planet. It is a cool interest to have, and a great conversation starter too!

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