How cold should condenser water be?

How cold should condenser water be?

Most condensers have a 10 degree rise in water temperature from the inlet to the outlet, so 85 degrees inlet should mean 95 degrees out. Many technicians refer to this as the ‘split’ in temperature.

Can condenser water be too cold?

Entering condenser water temperature can be up to 95F, however, 85F is more typical. Condenser Pressure: Record the condenser pressure. With design water temperature and water flow through the condenser tubes, and operating at full heat load conditions, this pressure should not exceed maximum design condenser pressure.

What is the temperature of the condenser water which is entering the chiller?

around 27 ° C
The condenser water enters at around 27 ° C (81 ° F) so the refrigerant needs to be a greater temperature than this.

How does condenser control water temperature?

A common control strategy is to reset supply water temperature based on outdoor wet bulb temperature. For example, the entering condenser water set point may be reset at a fixed amount (e.g. 7°F) above the outdoor air wet bulb temperature, with limits to meet the chiller and cooling tower operation.

What can cause the condensing temperature to be too high on a water-cooled system?

List some of the factors that can cause the condensing temperature to be too high on a water-cooled system. Low water flow, scaled condenser surfaces, or fouled condenser surfaces. Desuperheating hot water heater or a heat reclaim condenser to use heat from refrigeration machines to heat the store.

What happens if condenser water temperature is too high?

If the temperature is too high, above 75 degrees, the chiller is consuming excess energy and increasing your monthly energy costs.

What is the difference between air-cooled condenser and water-cooled condenser?

Differences in the Condenser Air-cooled chillers have condensers that use ambient air to cool hot refrigerant. Water-cooled condensers are typically tube-in-tube, tube-in-shell, or plate-type heat exchangers in which water from a cooling tower or other water source cools the refrigerant.

How do you calculate condenser flow rate?

Chilled Water Systems

  1. Total Heat Removed. The total heat removed by an air condition chilled-water system can be calculated. h = 500 q dt (1) where.
  2. Evaporator Flow Rate. The evaporator water flow rate can be calculated. qe = htons 24 / dt (2) where.
  3. Condenser Flow Rate. The condenser water flow rate: qc = htons 30 / dt (3)

What is the main cause of high condensing temperatures and pressures in air-cooled?

The heat rejected by the condenser: Equals the heat absorbed by the evaporator plus the heat added by the compressor. The main cause of high condensing temperature and pressure in air-cooled condensers is: Dirty condensers.

What is the cause of high condensing pressure in water-cooled condenser?

One common cause of high discharge pressure is the cooling medium (air or water) flowing across the condenser: either there is not enough or the temperature of the cooling medium is too high. This is normally easy to identify with a simple visual inspection of the condenser.

What is leaving water temperature?

With 85 [degrees]F (29.4 [degrees]C) entering condenser water temperature, the example leaving water temperature is 94.3 [degrees]F (34.6 [degrees]C)….LWT.

Acronym Definition
LWT Lead without a Title (Robin Sharma book)
LWT Light Weight Torpedo
LWT Leaving Water Temperature
LWT Look Who’s Talking

What should low entering condenser water temp be?

Trane’s numbers on low condenser water temps are about the refrigerant pressure differential between the evaporator and the condenser. They state (if I remember correctly) to maintain a minimum of 3 PSID on CVHE/F with the refrigerant pump, and 5 PSID on older CVHE/F without the refrigerant pump. That is at steady-state conditions.

What should the temperature be for a condensing boiler?

To be able to condense the water vapour from the flue gas, the condensing boiler should operate using a lower entering water temperature than a conventional boiler. This is because the condensing process occurs at around 54°C.

What should the temp of chilled water be?

chilled water could operate with an entering co ndenser water temperature below 50°F, as long as the leaving condenser water temperature is gr eater than or equal to 55°F. If you have chillers

What should the pressure be in a condenser?

It is important to maintain a minimum 3 psid (20.7 kPaD) pressure differential as shown in Figure 2. The 3 psid (20.7 kPaD) minimum at all loads is nominally equivalent to a 15°F differential between leaving chilled water temperature and leaving condenser water temperat ure.

Back To Top