What is the difference between heat exchanger and heater?

No. There is no difference between feed water heater and heat exchanger. The function of a heat exchanger is to allow heat from one fluid flowing in a pipe to be transferred to other fluid flowing through another pipe in contact.

Is a water heater a heat exchanger?

An indirect water heater uses the main furnace or boiler to heat a fluid that’s circulated through a heat exchanger in the storage tank. The energy stored by the water tank allows the furnace to turn off and on less often, which saves energy.

Are heat exchanger and boiler is the same?

Boilers can be called a Heat Exchanger since exchange of heat occurs in them. There’s more to a Boiler than just being a heat exchanger. Boilers generate heat through chemical reaction of fuel and exchange it for water to produce steam or heated water.

What is the purpose of a feed water heater?

Feedwater Heater Operation Feedwater heaters are used to heat feedwater before the water enters the boiler. The higher the feedwater temperature, the less fuel is required to produce the steam used to produce electricity in the steam turbine.

How does a water to water heat exchanger work?

In a typical water heat exchanger, freshwater flows in and circulates around the hotter wastewater that flows out. The wastewater transfers its heat energy to the freshwater through the interior walls, heating the freshwater, typically to over 100º F, and cooling the wastewater as it exits the unit.

How efficient are water to water heat exchangers?

Exchanger transferring heat from a liquid (e.g. water) to a liquid (e.g. water) often show effectiveness factors around 0.95.

What are the different types of heat exchanger?

Contents

• 2.1 Shell and tube heat exchanger.
• 2.2 Plate heat exchangers.
• 2.3 Plate and shell heat exchanger.
• 2.4 Adiabatic wheel heat exchanger.
• 2.5 Plate fin heat exchanger.
• 2.6 Finned tube heat exchanger.
• 2.7 Pillow plate heat exchanger.
• 2.8 Waste heat recovery units.

What are the types of heat exchanger?

There are two main types of regenerative heat exchangers—static heat exchangers and dynamic heat exchangers.

What are the types of feed water heaters?

Three types of Feedwater Heaters

• Low Pressure Heater (LP): A Feedwater Heater located, with regard to feedwater flow, between the condensate pump and either the boiler feed pump or, if present, an intermediate pressure (booster) pump.
• High Pressure Heater (HP):
• Intermediate Pressure Heater (IP):

How many types of feed water heaters are present?

There are three types of feed water heaters in use. They are: 1. Open or Direct Contact Feed Water Heaters 2. Closed Type Feed Water Heaters with Drains Cascaded Backward 3.

What is the difference between a boiler and a heat exchanger?

There is a wide difference. Boiler is steam generator. Heat exchanger allows to absorbs heat from higher to lower Tempe. Steam generators of fire tube, water tube work on heat exchanger principle. Water is indirectly fired with hot fumes.

What is a feed water heater used for in a boiler?

Feedwater Heater Operation Feedwater heaters are used to heat feedwater before the water enters the boiler. The higher the feedwater temperature, the less fuel is required to produce the steam used to produce electricity in the steam turbine.

How does a secondary heat exchanger work?

To begin with, cold water enters the secondary chamber, absorbing heat from flue gases that would otherwise be wasted by a non-condensing unit. The water then passes through the primary heat exchanger, warming up further before travelling to the radiators and hot water tanks.

How do you measure the performance of a feedwater heater?

The primary parameters used to monitor individual heater performance are the feedwater temperature rise, the terminal temperature difference (TTD), and the drain cooler approach (DCA). Three important measurements can be taken that will provide information about the operating efficiency of a feedwater heater (Figure 4): 4.Performance measures.