Comparison Between Conventional System – Radiant System
CONVENTIONAL SYSTEMS
Heating is carried out by means of transportation. Hot air, steam or hot water obtained by means of a central source (boiler, burner etc.) is primarily carried to the space to be heated by means of circulation pumps, fans, pipes/channels and is pressed inside as hot air by means of apparatus, convectors or vents. The aim is to first heat the air in the space. Secondly, people, machines etc. are heated. However, since the heated air naturally rises, heating is very late and difficult with such a system, especially in high buildings, buildings with poor insulation or businesses with high air exchange. As a result, heating is attempted with a system that consumes too much energy (high fuel costs) and cannot provide sufficient comfort.
A boiler room or heat plant is definitely needed for heat production.
It is difficult to provide homogeneous heating. The temperature differences between the ceiling and the floor are very high. (12°C to 20°C)
Since heat transfer is provided by fans, there is air movement. This air movement is felt as cold until the system enters the regime and causes employees to get sick or diseases to be carried. It also moves the dust in the environment and sticks it on the products and machines.
The system takes 1-2 hours to enter the regime. Therefore, the system should be put into operation a few hours before the workplace starts working.
The initial investment cost required to establish the system is high and the installation period of the facility is long.
Operation, maintenance and spare parts costs are high. In addition, even if only one of the many parts in the boiler room fails, the entire system can be disabled and the facility cannot be heated until the fault is fixed.
Annual electricity consumption constitutes an important share of operating expenses.
It is very difficult to do local or regional heating.
The possibility of dismantling an existing system and using it in another facility is low. However, very few existing equipment can be used. It is difficult to make changes to the system due to changes in manufacturing method or layout.
There is a loss of efficiency over time. The efficiency of the system decreases over the years.
RADIANT SYSTEMS
Heating is done by radiation. The system is in the space to be heated and is hung from the ceiling. The gas burned by the burner is circulated inside the radiant pipes and the energy radiated from the heated pipe is directed downwards by reflectors (like the sun warms us…) and heating is done. There is no transported fluid (hot water, steam, hot air etc.) and transfer element (pump, pipe, valve, collector, apparatus, channel etc.). In other words, transfer loss is 0%. The aim is to heat objects and people first. Heating also starts from the ground first and is felt in a very short time. It is the most ideal heating system especially in high buildings, buildings with poor insulation or businesses with high air exchange. As a result, heating is done with a system that provides low fuel costs and high comfort.
Since heat production takes place at the ceiling of the space to be heated, there is no need for an additional section.
Heating is homogeneous. Temperature differences between ceiling and floor are low. (4°C to 8°C)
Since heat transfer is provided by radiation, there is no air movement and since there is no air movement in the environment, dust does not move and does not stick to products and machines. Also, the risk of disease transmission is minimal. Diseases caused by this reason do not appear in spaces heated by radiants.
The system takes 15-30 minutes to enter the regime. Therefore, the system can be put into operation a few minutes before the workplace starts working.
The initial investment cost required to install the system is low and the installation time of the facility is very short.
Operation, maintenance and spare parts costs are very low. In addition, even if one of the devices fails, the entire system except the faulty device continues to operate and there is no problem with heating.
Annual electricity consumption is negligible.
Local or regional heating can be done as desired.
An existing system can be easily dismantled and used in another facility. It is possible to make changes to the system according to the change of manufacturing method or machine layout, it is very easy and can be done in a short time.
There is no loss of efficiency over time. It works with the same performance for many years.
CONCLUSION
Radiant heating, a small model of the sun heating the planets, provides comfortable heating in large volumes. In light of the economic analyses, it is seen that radiant heating systems can be more economical than conventional systems, contrary to popular belief. Considering the increasing fuel prices, fuel savings of up to 50% should definitely not be ignored. Radiant systems provide great advantages both in heating large volumes such as factories, warehouses, hangars, and in heating only certain sections of these areas. The ease of construction alone can be considered a sufficient reason to choose a radiant system.
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