CapitalHvac.com - HVAC heating and Air Conditioning

HVAC heating and Air Conditioning

The HVAC system uses three closely related functions, namely, heating,
ventilation, and air-conditioning. These functions are uniquely set up so that
they can regulate temperature and humidity in residential homes, public offices,
and other building facilities with respect to the overall design of the
structures.





The heating system can either be central or local. The most commonly used
setup is the central heating system where the heating is concentrated in one
area—central—and is then circulated for various heating processes and
applications.  Heat values of fuels are based on BTU to cubic foot measurement
for HVAC.


In the central heating system, there are three common components used. A
furnace is an enclosure used for heating and can be found at the basement or at
the attic. Different cultures have various interpretations of “furnace.” For the
Americans, it is similar to kiln while for the British, it is equivalent to
industrial furnaces. Whatever it may be, it still uses the same principle for
heat distribution—that is, it transfers heat using an intermediary distribution
system. A boiler, meanwhile, is a type of furnace—in fact, a closed vessel—that
distributes heat through steam.



Thermodynamic principles are the bases for a heat pump. This device causes
the temperature to rise through heat transfer. A heat pump is very effective
especially for very cold air since it has the ability to heat it at the shortest
period. An efficient heat pump uses lesser energy and thus power.


A radiator is a heating device that circulates steam or hot water through
pipes found inside an upright metal structure. This term is also commonly
applied to some types of heat exchangers. It is a common perception among people
that heat is transferred from a heat exchanger through radiation when, in fact,
it is not. It transfers heat by convection, which uses currents.


Please note, though, that the central heating system is completely different
from your hot water supply. For instance, the water used in the former is not
the same as your tap water.

Ways of Central
Heating
There are a number of methods for central heating. In
electric heating, an electrical heater is used. It is a device that transforms
electrical energy into heat. Every electric heater contains an electric
resistor, which acts as its heating element. Right now, there are many
variations of electrical heaters that deliver different amounts of heat, but all
of them use the same principle: Joule heating. An electric current that converts
electricity to heat is allowed to pass through the resistor. In hydronic
heating, heat produced is commonly transferred to fins found along pipes in
baseboard HVAC registers. You can also use coal, propane or natural gas,
pressurized oil, or earth, which is used as a heat pump.


Air-conditioning
Over the years, air-conditioning has
changed home lifestyle. A lot of London homes right now take advantage of
wall-mounted air-conditioning systems. They are often placed in the living room,
bedroom, kitchen—in almost all over the house. Most buildings and offices also
have hidden condensing units. Cooled places become refuge to those who are tired
with the rising temperature outside.


There are various air-conditioning systems in the market, but they all
function just the same. They control temperature, ventilation, and humidity in
an enclosed environment. Hilsch air-conditioning uses a vortex tube called
Ranque-Hilsch vortex tube for cheap spot cooling when you there is compressed
air. However, it is not as efficient as usual air-conditioning equipment.



It is advisable that homes, buildings, and other offices have sealed windows
to maintain the quality of air produced by the system. Furthermore, it is better
to check the dwelling first to make sure that air conditioners can really be
installed since they often use large ducts. But you really don’t have to worry
too much if it isn’t. You can still take advantage of remote coils or use the
split system. Yet it is always preferable to maintain the cleanliness of the
ducts to prevent the growth of pathogens that can definitely cause illness.
Sometimes chemical monitoring of HVAC systems is needed to always ensure indoor
air quality.


Heating
Most modern structures in colder regions in the
world and in countries with temperate climate such as the United Kingdom usually
install a heating system. This mechanism is used to regulate temperature in
residential homes, public offices, and other dwellings.