Questions and answers

How do you service a water-cooled condenser?

How do you service a water-cooled condenser?

Mix warm water and acid according to container instructions (usually 10 parts water to one part acid). Circulate acid mixture through condenser for 15-30 minutes. Remember acid is corrosive so do not circulate longer than 1 hour.

What is the main maintenance concern with water-cooled condensers?

Low refrigerant pressure and temperature can drop below freezing, freeze the water in the condenser, and damage the condenser.

What is water-cooled condensers?

Water-cooled condensers involve a heat rejection loop where condenser heat is dissipated to the environment via water. The most common type of water-cooled condensers in geothermal power plants are direct-contact and surface types.

What are some possible disadvantages with water-cooled condensers?

Disadvantages of water-cooled condensers:

  • Installation cost is more.
  • It required more maintenance.
  • Operating the water-cooled condenser is not easy.
  • It is not so flexible to use everywhere.
  • It required an additional recirculation system for used water.
  • Water cooled condenser parts undergo to corrosion effect.

Why is cold water pumped around the outside of the condenser?

If water enters from the bottom of the condenser, it will always be completely filled with cold water which ensures efficient cooling. A completely filled condenser provides maximum cooling therefore allowing for maximum recovery of the purified liquid during distillation.

What happens if the refrigerant from a water-cooled condenser is improperly recovered?

What can happen to a water-cooled condenser if the refrigerant is recovered improperly? Low refrigerant pressure and temperature can drop below freezing, freeze the water in the condenser, and damage the condenser.

What happens to refrigerant in the condenser?

Refrigerant flows through the compressor, which raises the pressure of the refrigerant. Next the refrigerant flows through the condenser, where it condenses from vapor form to liquid form, giving off heat in the process. The refrigerant draws heat from the evaporator which causes the regrigerant to vaporize.

How does a water-cooled condenser work?

A Water-Cooled Condenser is a heat exchanger that removes heat from refrigerant vapour and transfers it to the water running through it. Having the refrigerant vapour condensed on the outside of a tube achieves this. In doing so, the vapour condenses and gives up heat to the water running inside the tube.

How does a water-cooled compressor work?

Water-cooled compressors use liquid coolant from an external unit to cool the compressed air and any other substances present during the compression process. The cooling circuit reduces the heat with a shell and tube exchanger. Water-cooled units are more common in machines with higher horsepower.

What are the advantage of water-cooled chilled water system?

Water-cooled chillers usually don’t need replacement as often as air-cooled chillers do. They aren’t exposed to outdoor elements such as rain, snow, ice, and heat, which makes them less vulnerable. While air-cooled chillers have ducts and vents that create noise, water-cooled chillers operate quietly.

How is water used to cool a refrigerant condenser?

Water is used to cool condensers. One method is to cool condensers with water from the city water supply and then exhaust the water into the sewer after it has been used to cool the refrigerant. This method can be expensive and, in some instances, is not allowed by law.

How is a coaxial water cooled condenser used?

The refrigerant flows in the opposite direction than the water (see Fig. 8-6). This type of coaxial water-cooled condenser is designed for use with refrigeration and air-conditioning condensing units where space is limited. These condensers can be mounted vertically, horizontally, or at any angle. They can be used with cooling towers also.

Can a water cooled condenser be opened for maintenance?

All condenser models can be opened for inspection and maintenance purposes. CFC, CRS, CPLUS, ACFL and CDEW series are designed to operate with fresh water and CFC/M and McDEW series are dedicate to sea water applications thanks to material selection and correct sizing in order to prevent fouling and corrosion.

Can a water tower be used to cool a condenser?

Using a cooling tower to furnish the water that contacts the outside tube can further cool the condenser. Also, a water tower can be used to cool the water sent through the inside tube for cooling purposes. This type of condenser is usable where refrigeration or air-conditioning requirements are 1/3 ton to 3 ton.