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If the leak is in the copper fins/heat exchanger : replace the exchanger, gaskets etc Not a job for someone who is not familiar with pool heater construction and service. If the leak is at the inlet or outlet you may have to remove those fittings and replace woth new ones.
there are two type of heat exchanger in absorption refrigeration, first is liquid heat exchanger and other is gas heat exchanger.both heat exchanger function is same, to transfer heat (hot medium to cold medium) without violate second newton law of thermodynamics. liquids heat exchanger is between boiler and absorber vessel mean while gas heat exchanger between evaporator and absorber.
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The duty of a heat exchanger can be defined in an easy way as "The amount of heat exchanged from a fluid at a higher temperature to the fluid at lower temperature in unit time by a heat exchanger is called its duty"
actually there is no difference , infact condenser itself is a heat exchanger
A heat exchanger.
Calorifer is a heat exchanger, with a specific of air (or other gas) preheat. Usually is directly in a Duct installed. Heat Exchanger usually is separate unit.
expension belows are used for heat exchanger to avoid thermal stress
A heat exchanger is a device that transfers heat from one fluid to the others. A condenser is simply a heat exchanger. It compresses refrigerants into a hot gas to then condense them into a liquid. Majorly condenser is used to cool the required vapor and heat exchanger is used to heat the required liquid.
The noise is coming from the heat exchanger located just above the burner tray. One or more of the heat exchanger tubes has become blocked or reduced in size from calcium buildup - - - improper adjustment of your pool's pH which can happen is a short period of time. The knocking is caused by steam or the lack of proper water flow through the exchanger tubes. Someone, and I am not mentioning names has not done their job of maintaining the pool properly. If left alone the exchanger will fail and you will have a great expense of replacing the heater. Another possibility is that the heater by-pass valve is failing. You need a qualified pool tech to advise. He can only assess the problem through a heater visual inspection --- that means disassembling the heater to look at the exchanger tubes. Sorry for your misfortune. k
hx
It's the flat, flanged cover on the front (and sometimes the rear) of a shell & tube heat exchanger.