After five years of development, a new cooling tower direct-drive motor has successfully completed its beta-test phase.

Prime Datum Inc., Canandaigua, N.Y., says the development program and testing took place at a Hawaiian oil refinery.

The Zephyr integrated-drive system is designed for cooling towers to improve process reliability and to avoid the losses in production and revenue often experienced by mission-critical industries such as oil, gas, petrochemical and power generation. Prime Datum first evaluated the problems with the old gearbox fan-drive system, calculating lifecycle cost, the developed, built and tested the Zephyr. According to the company, the return on investment, after considering energy savings, utility rebates, reliability improvements and reduction in service and maintenance, is approximately 30 months.