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Absorption of isobutane in three linear chained pentaerythritol esters between 293.15 and 348.15 K.

Author(s) : SUN Y., WANG X., WANG D., et al.

Type of article: Article, IJR article

Summary

This study presents a dynamic modulation of voltage excitation angle technology applied to a refrigerator so that the refrigerator operates at optimum energy consumption. This technique utilizes a semiconductor element, Tri-electrode AC switch (TRIAC), as a regulatory element for modulating the voltage excitation angle and the sensing current is taken as the feedback signal to determine the voltage modulation range. Thus, a novel energy saving controller (NESC) was successfully developed. We validated the feasibility of the proposed NESC; tests were performed where the door is closed for one hour and a dynamic simulation of normal use where the door is opened and closed periodically in one hour. The energy-saving rates obtained were 20.48% and 12.88%, respectively. In addition, a long period of one day tests on refrigerator was also conducted with and without NESC, and the best power consumption was measured at 6.597?kWh 24?h-1. An energy-saving rate of 22.41% was achieved.

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Pages: 118-125

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Details

  • Original title: Absorption of isobutane in three linear chained pentaerythritol esters between 293.15 and 348.15 K.
  • Record ID : 30022195
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 76
  • Publication date: 2017/04
  • DOI: http://dx.doi.org/10.1016/j.ijrefrig.2017.01.021

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