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Dołączył: 30 Mar 2011
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Wysłany: Śro 4:17, 27 Kwi 2011 |
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Working of Condensing Boiler ,[link widoczny dla zalogowanych]
When the condensing boiler works at its peak efficiency,[link widoczny dla zalogowanych], the vapour that is produced by the burning of the fuels are condensed back inside the water. Steam will easily condense to such liquid water provided that the temperature of the water is quite low. These characteristics have given the name to the device as the condensing boiler.
Use of Sophisticated Algorithm
Most sophisticated algorithms that are used help building the requirements at specific temperatures at outdoors. These algorithms also help successful returning of cool water condensing the vented exhaust gases and recovering the heat in vaporisation.
Factors Influencing Condensing Boiler Efficiency
Multiple factors influence the efficiency of the condensing boiler. One of them is the temperature of return water streams. Little condensation will take place when the water is too warm. In result very little extra energy is extracted. That is why scientists have been devising a newer generation of the boilers for condensing purposes.
Functioning of the Gas Condensing Boiler
Most commonly the gas condensing boiler uses the residual heat that is available in the flue. The energy is used to heat the cooler returning water stream or by using the primary heat exchanger that should have sufficient surface enabling the condensing occurring with ease and convenience.
Extra Efficiency of Condensing Boiler
No one can deny that a high efficiency condensing boiler is extra efficient. One of the reasons for such high efficiency is the cooling of the exhaust gas. Other and even more pertinent reason is the condensation of water vapour in exhaust gases. In the process the latent heat of water vapour is released inside the heat exchanger.
The devices also contain modulating control units that minimises the on-off cycling so that the overall efficiency is enhanced. In the process the gas condensing boiler supplies only such amount of heat that would be lost by the building at specific outdoor air temperatures.
Fully Condensing
Fully condensing gas boiler normally uses the primary heat exchanger having adequate space for condensing.
Traditional Gas Condenser Working
Burning of the fuel heat water that is contained inside the heat exchanger using the hot combustion gases that are excreted are the basic features of traditional non-condensing boiler. Drawback with the conventional high efficiency gas boiler is that a considerable amount of heat is wasted that could be in the range of 180 to 200 degree Celsius.
ater heating device that is designed to recover energy that is discharged to the atmosphere by means of the flue,[link widoczny dla zalogowanych],[link widoczny dla zalogowanych], condensing boiler performs the task by using the secondary heat exchanger.
New Generation of Boilers
New generation of the boilers used for condensing purposes is called the modulating control boilers. These boilers contain microprocessor controlled combustion modulating the quantity of gas and air fuel mixtures that is supplied to burners. In the process the gas condensing boiler uses a configurable embedded algorithm. Basically the algorithm consists of outdoor temperature of air and the water temperature that is supplied and returned to the boiler timing them to specific temperature.
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