Friday, April 5, 2013

Why We Need Air Conditioning and Heating Systems


Air conditioning and heating systems are also known as HVAC, now-a-days which means Heating, Ventilating and Air conditioning. This term mainly started in early second century when the Roman cities used it as a central heating system or a Hypocaust. Then this term got fame in Industrial era and now it is used as an integrated system for keeping the climate cool.

Uses of HVAC:

The first and the primary use of HVAC are to regulate the room temperature, humidity and air flowing to an amount suitable for the body to sustain in that environment. A suitable range of this environment should be ensured as it minimizes health risks which are:

1. A very humid atmosphere unable the body's activity to perform the function of evaporation of sweat and also causes fatigue due to which it is difficult for the body to perform various tasks
2. 2. Hypothermia and Heat Stroke are two major breakdowns caused in body when unhealthy surroundings affect people's thinking abilities.
3. Temporary HAVC units can also be used in case of emergency. It is used in extreme weather conditions for keeping the climate cool or hot and healthy. In many cases, it is the only invention used for survival and work. For example, a crewman working in a tunnel needs HVAC to keep the temperature at a suitable level.
4. In many situations HVAC have been used for saving lives. One incident occurred in Texas where a girl was fallen in a tunnel and was lodged there for a couple of days. So what the rescuer did was, they pushed a hose for her to respire fresh air and in the meanwhile found a way to rescue her.
5. Temporary HVAC are also used in schools, institutions, offices, homes, buildings and many other areas where it is necessary for temperature and humidity to be controlled.

Three Types of temporary HAVC units:

The three types of HVAC are which are mainly used everywhere are:

1. Generators:

In the present era, almost everyone requires a generator for carrying on their work because fossil fuel is getting becoming led in quantity day by day. This is mainly used in those countries where power grid is to expect to be down for a much longer time period. Generators are used for providing lighting and thermo-regulation.
Due to its massive use, generators now are manufactured in various models, brands and qualities. Customers are given an ample choice to select whatever type of generator they require for their usage.

2. Chillers:

HVAC system has introduced chillers for keeping the specific areas cool. They are large sized so they are mainly used in industries and for commercial uses. HVAC chillers require thermal, condensers, compressor, evaporator and stabilizers so as to perform the function in the best applicable way as possible.

3. Boilers:

Two types of boilers have been introduced by HVAC. That is Steam boiler and Hot water Boiler and whoever have used them, have praised their excellence.

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