I am evaluating the energy savings for installing a vfd on a 30 hp cooling tower fan. Can someone tell me what is the minimum speed I can expect the VFD to run reliably?
I am trying to evaluate the savings benefits of installing a VFD controlled fan. I can estimate the potential power usage of the VFD by applying the affinity laws because I have a good air flow demand profile for the system.
However, the current operation uses outlet dampers and/or inlet vanes...
I am trying to evaluate the savings benefits of installing a VFD controlled fan. I can estimate the potential power usage of the VFD by applying the affinity laws because I have a good air flow demand profile for the system.
However, the current operation uses outlet dampers and/or inlet vanes...
I am evaluating the savings for the installation of an auto-purger for a ammonia chiller refrigeration system. I know the suction and discharge pressure/temperature for the system. I have an estimate for the partial pressures of the air and ammonia, so I can find the entering and exit enthalpies...
