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dc.contributor.authorMeeiam, Teerapongen_US
dc.contributor.authorธีรพงศ์ มีเอี่ยมen_US
dc.date.accessioned2021-01-31T05:22:21Z
dc.date.available2021-01-31T05:22:21Z
dc.date.issued2021-01-31
dc.identifier.urihttp://repository.rmutp.ac.th/handle/123456789/3563
dc.descriptionวิทยานิพนธ์ (วศ.ม.) -- มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร, 2558en_US
dc.description.abstractDefrosting at evaporator panel is one of working cycles in freezer. Power consumption in defrosting does not meet the objective of using freezer, therefore, the approach to decrease power consumption in defrosting is one strategy for energy saving. Normally, the cycle of defrosting in freezer is a constant time that specify by referring to the highest humidity period. With this control concept, the problem of temperature exchange is not occurred from ice accumulation at evaporator panel but it makes the over necessity of defrosting process in the low humidity season and cause the unnecessary power usage in freezer. This thesis presents the control approach for defrosting by using the difference of the temperature at evaporator and the temperature at chilling area. By using this approach, the defrosting process is operated depend on load and the fan is on or off relate to defrosting time. Test results demonstrate that about 12% of power can be saved by this control approach when compared to constant time control.en_US
dc.description.sponsorshipRajamangala University of Technology Phra Nakhonen_US
dc.language.isothen_US
dc.subjectตู้แช่เย็นen_US
dc.subjectEvaporatorsen_US
dc.subjectเครื่องระเหยen_US
dc.subjectRefrigeratoren_US
dc.subjectDefrostingen_US
dc.subjectการละลายน้ำแข็งen_US
dc.subjectHumidityen_US
dc.subjectความชื้นen_US
dc.titleEnergy saving strategies in refrigeration systems by defrost managementen_US
dc.title.alternativeกลยุทธ์การประหยัดพลังงานในระบบทำความเย็นด้วยการจัดการระบบละลายน้ำแข็งen_US
dc.typeThesisen_US
dc.contributor.emailauthorarit@rmutp.ac.then_US


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