Control of HVAC Dampers by Trans-Permanent Magnetics
| dc.contributor.advisor | Dr. M. K. Ramasubrmanian, Committee Member | en_US |
| dc.contributor.advisor | Dr. Larry M. Silverberg, Committee Chair | en_US |
| dc.contributor.advisor | Dr. Gracious Ngaile, Committee Member | en_US |
| dc.contributor.author | Webber, David Wayne | en_US |
| dc.date.accessioned | 2010-04-02T18:06:36Z | |
| dc.date.available | 2010-04-02T18:06:36Z | |
| dc.date.issued | 2005-11-09 | en_US |
| dc.degree.discipline | Mechanical Engineering | en_US |
| dc.degree.level | thesis | en_US |
| dc.degree.name | MS | en_US |
| dc.description.abstract | In recent years, the nation has come under an energy crunch. The energy crisis is in part due to inefficient energy use in actuators. Recent advancements in trans-permanent magnetics, will allow this new technology to be employed in actuators that will require significantly less energy. Applications such as spacecraft pointing and deployment, along with air valve actuation have already proven feasible. The applications for trans-permanent magnetics vary from solenoids to motors, with evident benefits of low power, and no wear. The purpose of this research is to develop and implement a trans-permanent magnetic actuator for HVAC dampers. The system will use a minimal number of magnets and will utilize magnetic forces for soft latching of the device in it open and closed states. The scope of this project includes mounting an HVAC damper in a moderate air stream, the design of a trans-permanent actuator, and evaluation of the actuator. The air flow through the duct is higher than typical found in residential or commercial HVAC systems. The actuator will rely upon onboard magnetization to operate the damper's louvers. The onboard magnetization process will occur through an impulse magnetizing circuit. Several experimental tests were conducted on the prototype actuator to test performance and limitations. The results of these experiments demonstrate a working unoptimized trans-permanent magnetic actuator. | en_US |
| dc.identifier.other | etd-11022005-151816 | en_US |
| dc.identifier.uri | http://www.lib.ncsu.edu/resolver/1840.16/1704 | |
| dc.rights | I hereby certify that, if appropriate, I have obtained and attached hereto a written permission statement from the owner(s) of each third party copyrighted matter to be included in my thesis, dissertation, or project report, allowing distribution as specified below. I certify that the version I submitted is the same as that approved by my advisory committee. I hereby grant to NC State University or its agents the non-exclusive license to archive and make accessible, under the conditions specified below, my thesis, dissertation, or project report in whole or in part in all forms of media, now or hereafter known. I retain all other ownership rights to the copyright of the thesis, dissertation or project report. I also retain the right to use in future works (such as articles or books) all or part of this thesis, dissertation, or project report. | en_US |
| dc.subject | Magnets | en_US |
| dc.subject | Actuators | en_US |
| dc.subject | Trans-Permanent Magnetics | en_US |
| dc.subject | Energy Efficiency | en_US |
| dc.subject | Control | en_US |
| dc.subject | HVAC | en_US |
| dc.subject | Damper | en_US |
| dc.subject | Wear | en_US |
| dc.title | Control of HVAC Dampers by Trans-Permanent Magnetics | en_US |
