What are economizers explain in detail?
An economizer is a mechanical device used to reduce energy consumption. Economizers recycle energy produced within a system or leverage environmental temperature differences to achieve efficiency improvements.
What is the application of economizer?
Applications include the preheating of boiler feed water, waste heat recovery, and cogeneration. Economizers are also used in waste heat boilers and other heating and cooling equipment. By definition, waste heat is heat produced by machines and industrial processes for which there is no useful application.
What are the components of economizer?
The condensing economizer can thus recover the sensible and latent heat in the steam condensate contained in the flue gases for the process. The economizer is made of an aluminium and stainless steel alloy. The gases pass through the cylinder, and the water passes through the finned tubes.
What is an industrial economizer?
An industrial economizer is used to reduce energy consumption in industrial processes. Many industrial economizers have been used to reduce the amount of energy that is lost during the heating process. The boiler process that has been described above is the commonest use of the economizers in the industry.
What are the advantages of economizer?
The advantages of an economizer include: It recovers more heat of flue gases which normal air pre-heater can not do. Due increase in fuel prices, all power plants are facing pressure for increasing boiler efficiency. So by using economizer, this pressure can be minimized.
What is the function of economizer *?
Function of the economizer: Economizer works as a heat exchanger by preheating a fluid which as a result minimizes energy consumption. In a steam boiler, it heats the fluid and recovered residual heat which in turn is used to preheat the boiler feed water that is ultimately converted to superheated steam.
Is an Erv an economizer?
An ERV has an additional advantage over economizers by extending the free cooling range. A properly configured ERV will allow you to utilize free cooling using lower outdoor temperature set-points due to the advantage of temperature recovery.
What is economizer in RTU?
In a nutshell, an economizer is a mechanical vent attached to a roof top unit (RTU) that opens to draw-in outside air for cooling a building when the outside air temperature is cool and dry enough.
What is economizer in HVAC?
An HVAC economizer is a device that is used to save energy consumption. It typically works in concert with an air conditioner. Together, this solution helps minimize power usage. During the cooler months of the year, in many locations, the outdoor ambient air is cooler than the air in the building.
What is a steam economizer?
A feedwater economizer reduces steam boiler fuel requirements by transferring heat from the flue gas to incoming feedwater. Boiler flue gases are often rejected to the stack at temperatures more than 100°F to 150°F higher than the temperature of the generated steam.
What is a HVAC economizer?
What is enthalpy economizer?
Enthalpy economizers regulate the use of outside air based on the enthalpy, the amount of internal energy within a system combined with the product of its pressure and volume.
What is the function of economizer is used to heat?
Economizers are mechanical devices intended to reduce energy consumption or perform a useful function such as preheating a fluid. In basic terms, an economizer is a heat exchanger.
What are the two types of economizers?
There are two main types of economizers: non-condensing economizer and condensing economizer. Non-condensing economizers are mainly used because this type of economizers increase efficiency by 2% to 4%. Why economiser is used in boiler? Boiler economizer used to improve steam boiler system’s efficiency. Economizer is kind of heat exchanging device.
What is an economizer in a boiler?
Economizers are one of the four main heat transfer surface types. The name economizer comes from German Ekonomizierung (to economize). They were first used in shell and tube boilers to preheat the feedwater. Feedwater preheating helps to capture more heat from the flue gases.
What is the function of economizer in steam power plant?
Economizers, in steam power plants, used to capture the waste heat from boiler flue gas and transfer it to the boiler feedwater. What are the types of economisers? There are two main types of economizers: non-condensing economizer and condensing economizer.
How does an economizer work?
By using an economizer this is done by conducting the feedwater supply to the economizer wherein the exhaust gas passes over tubes carrying the feedwater. The feedwater, normally at temperatures between 30° and 100° C, represents a further cooling medium for the exhaust gases and provides the potential for the extra heat utilization.