NOTE: Restrictions are in place to limit access to one or more of the files associated with this item. Authorized users must log in to gain access. Non-authorized users do not have access to these files.
Visit the Energy Systems Laboratory Homepage.
|dc.creator||Fishel, F. D.||en_US|
|dc.description.abstract||This paper investigates the energy savings available by utilizing variable speed motors on pump and fan applications. Conventional control of flow or pressure in process plants is normally accomplished by throttling the various streams with control valves. Depending on the system and the actual operating conditions, this throttling may consume a considerable amount of energy. The hydraulics of different systems are investigated to generalize high energy saving applications. Typical pump characteristics at varying speeds are investigated since most performance curves are only available at a constant speed. The various types of variable speed electric motors are discussed. However, the primary variable speed system recommended is a variable frequency speed system which utilizes standard induction motors. Specific cases of centrifugal pump applications and cooling tower fan service are presented. Turndown frequencies, stream factors, and electric rates are included in the evaluation. The energy savings of a variable speed system becomes significant when flow rates vary widely and the electrical rates are high.||en_US|
|dc.publisher||Energy Systems Laboratory (http://esl.tamu.edu)||en_US|
|dc.subject||Variable Speed Motors||en_US|
|dc.subject||Pump and Fan Applications||en_US|
|dc.subject||Energy Saving Factors||en_US|
|dc.title||Energy Savings of Variable Speed Motors||en_US|
|dc.contributor.sponsor||Shell Oil Company||en_US|
This item appears in the following Collection(s)
IETC - Industrial Energy Technology Conference
Industrial Energy Technology Conference