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Applied Physics Letters, 2019
Frost formation and ice accretion are major problems for a plethora of industries. Common defrosting and deicing techniques utilize energy-intensive mechanical actuation to dislodge ice/frost or heating methods to melt ice/frost from surfaces. Here, we develop an ultraefficient method to defrost/deice surfaces by spatially and temporally localizing ...
S. Chavan +5 more
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Frost formation and ice accretion are major problems for a plethora of industries. Common defrosting and deicing techniques utilize energy-intensive mechanical actuation to dislodge ice/frost or heating methods to melt ice/frost from surfaces. Here, we develop an ultraefficient method to defrost/deice surfaces by spatially and temporally localizing ...
S. Chavan +5 more
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Hydrophilic Slippery Surface Promotes Efficient Defrosting
Langmuir, 2021Frost accretion occurs ubiquitously in various industrial applications and causes tremendous energy and economic loss, as manifested by the Texas power crisis that impacted millions of people over a vast area in 2021. To date, extensive efforts have been made on frost removal by micro-engineering surfaces with superhydrophobicity or lubricity.
Siyan Yang +8 more
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Adaptive defrost methods for improving defrosting efficiency of household refrigerator
Energy Conversion and Management, 2018Abstract The defrosting method of the conventional household refrigerator increases freezer temperature during the defrosting operation, and defrosting efficiency reduces because the heater consumes more power than the amount of frost on the surface of the heat exchanger.
Youngchan Yoon +2 more
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Microwave Blood Plasma Defroster
Journal of Microwave Power and Electromagnetic Energy, 1991A microwave blood plasma defroster capable of thawing up to four bags of frozen blood plasma at a time is described. The unit stops automatically when the plasma reaches a preset temperature, and all operating parameters are monitored for safety. Comparative testing showed that blood plasma thawed in this device was indistinguishable from plasma thawed
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Study on the Liquid Refrigerant Defrosting System and the Defrosting Rule
Journal of Thermal Science and Engineering Applications, 2018The liquid refrigerant defrosting (LRD) is a defrosting method which leads the liquid refrigerant in the high-pressure reservoir to the frosting evaporator. The refrigeration process is continuous during the defrosting period, which increases the defrosting frequency.
Meng Wang +5 more
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Vehicle Defroster System Evaluation
SAE Technical Paper Series, 2000<div class="section abstract"><div class="htmlview paragraph">Vehicle defrost systems are required to defrost the windshield and side windows in a short period. This portion of the HVAC system is not only required to work without interfering with operator comfort relating to high temperatures being felt by the drivers face, but also ...
Michael B. Roberts +2 more
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Renewable and Sustainable Energy Reviews, 2017
Abstract This study reviewed the defrosting techniques applicable for the heating, ventilation, air-conditioning, and refrigeration industry, including passive, active, and system techniques. The passive methods normally use treated surfaces by changing the surface morphology through micro-grooved, anti-frost coating, hydrophilic, hydrophilic, or ...
Mohammed Amer, Chi-Chuan Wang
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Abstract This study reviewed the defrosting techniques applicable for the heating, ventilation, air-conditioning, and refrigeration industry, including passive, active, and system techniques. The passive methods normally use treated surfaces by changing the surface morphology through micro-grooved, anti-frost coating, hydrophilic, hydrophilic, or ...
Mohammed Amer, Chi-Chuan Wang
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Defrosting instructions: A response
Cambridge Opera Journal, 2004The title of this issue, ‘Performance Studies and Opera’, optimistically announces a conjunction between two disciplines that have previously had surprisingly little to do with each other, despite substantial common ground. The three articles gathered here, however, bear marks both of the excitement sparked by the novelty of bringing the methods of ...
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2015
The differential equations describing heat and mass transfer during each stage of defrost are solved, and results are compared to measurement. Numerical solutions for defrost Stages I and II are obtained, while an analytical solution for Stage III is possible. For Stage I, the duration of the stage is predicted and validated by experiment. For Stage II,
William F. Mohs, Francis A. Kulacki
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The differential equations describing heat and mass transfer during each stage of defrost are solved, and results are compared to measurement. Numerical solutions for defrost Stages I and II are obtained, while an analytical solution for Stage III is possible. For Stage I, the duration of the stage is predicted and validated by experiment. For Stage II,
William F. Mohs, Francis A. Kulacki
openaire +1 more source