Firstly you can use the cooling tower VFDs to control the temperature leaving the cooling tower to the prevailing wetbulb plus 3.5 deg C. (so you will have to measure wet bulb)This will make the system more efficient. Next, you will need to modulate the control valves in the process water loops...
The first step is to arrive at the cooling load in the space which will provide the load and the coil apparatus dew point required to achieve the required indoor conditions of temperature and humidity. This will enable you to slect teh evaporator/air-handling unit. This selection will deliver...
Iken, in a heating scenario the risk of condensation occurring is on the inside of the duct. Since the air in the duct moves with a velocity and it is not likely to drop below it's dewpoint there is no need to insulate the duct.
The same can't be said for the cooling mode because the risk in...
Thanks all of you for your responses. They have pointed me in the right direction. I will test a sample of the rejected water and at the first instance try to restore the concentration of dissolved solids by mixing with fresh potable water if that will still enable me to save all the water...
Thanks SAK9. I am not sure if I was clear in my question.
A hospital client of mine uses the RO plant to generate pure water for use in dialysis.
It is my intention to reuse the water rejected from the RO plant. I understand this rejected water has approximately twice the concentration of...
Has anyone reused the rejected water from a RO plant as make-up for the cooling tower in an air-conditioning system? How does this affect the chemical treatment of the condenser water system?
