Converting V-belt drives to synchronous belt drives can reduce energy usage.
To estimate the number of kilowatt-hours saved by using synchronous belt drives rather than V-belt drives, the following calculation can be used:
KWH= (motor hp x hours/year x .746 x.05)/motor efficiency
where constant .746 is the conversion factor from hp to KW and .05 is the estimated 5% energy savings gained by converting to synchronous belt drives.
GATES BELTS, HOSES, AND APPLICATIONS
Showing posts with label energy savings. Show all posts
Showing posts with label energy savings. Show all posts
Wednesday, November 1, 2017
Tuesday, January 4, 2011
Power and Fan Speed for Belt Drive Conversions
The power required to drive a fan relates to the fan shaft speed as follows:
Initial_Horsepower/New_Horsepower = (Initial_Fan_RPM/New_Fan_RPM)^3
A small speed change can result in a substantial increase in power consumption. Therefore, this relationship should be considered when replacing a V-belt drive with a synchronous belt drive for energy savings.
To ensure that the fan speed does not increase, the design speed ratio should be based on a measured fan shaft RPM of the existing V-belt drive. This measurement can be made with a contact or a strobe tachometer.
Initial_Horsepower/New_Horsepower = (Initial_Fan_RPM/New_Fan_RPM)^3
A small speed change can result in a substantial increase in power consumption. Therefore, this relationship should be considered when replacing a V-belt drive with a synchronous belt drive for energy savings.
To ensure that the fan speed does not increase, the design speed ratio should be based on a measured fan shaft RPM of the existing V-belt drive. This measurement can be made with a contact or a strobe tachometer.
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