Analysis of the fill amount influence on the heat performance of heat pipe

Lenhard, Richard; Kadúchová, Katarína; Papučík, Štefan

doi:10.1063/1.4892724

Cited by 16 publications

(6 citation statements)

References 2 publications

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“…Due to the effect of heat, the state of the work charge changes, and thus heat transfer takes place. From the results of the study on the influence of the amount of working substance on the heat output in the heat pipe, it was concluded that a suitable filling of the heat pipe with the working substance is around 50 % [12].…”

Section: Existing Methods Of Heat Dissipationmentioning

confidence: 99%

The Effect of Convection on the Thermal Power Change of Loop Thermosyphon

et al. 2020

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Creating thermal well-being and comfort for humans is now very natural and necessary. From the point of view of ensuring optimal operating conditions for electronic and electrical equipment, it is very important to provide a cooling system. For this reason, the research work deals with the creation of optimal conditions for rising temperatures in rooms with electronics. A combination of cooling systems is proposed to reduce the heat load of electronic components. The first part of the work generally describes the requirements for the design of refrigeration equipment and methods of heat dissipation by natural or forced convection. Depending on the requirement for low-energy equipment, a cooling system with a gravitational heat pipe and fans was designed in the second part of the work. The cooling system was installed in a closed electrical cabinet. The resulting values of the measurements indicated the evaluation of the transferred heat output in free and forced convection. The research also points to a comparison of the individual flow directions created by the fans.

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Section: Existing Methods Of Heat Dissipationmentioning

confidence: 99%

The Effect of Convection on the Thermal Power Change of Loop Thermosyphon

et al. 2020

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“…Closed-loop heat pipes are passive heat transfer devices using phase transformation with almost negligible heat loss. The appropriate combination of the working medium used and the construction packaging defines the operating temperature range of the heat pipes [3]. Heat pipes have proven to be an effective solution especially in high temperature applications and insulation, where there is any combination of uneven heat load, limited air flow through the heat generating components as well as space or weight constraints [4].…”

Section: Loop Hpmentioning

confidence: 99%

Increase the efficiency of the fireplace insert with loop heat pipe

2020

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The article is focused on increasing the efficiency of fireplace inserts by means of a device used to preheat the combustion air with a part of the heat from the flue gases. The proposed device is a heat pipe with a closed loop, where its evaporator takes heat from the flue gas in front of the chimney orifice and transfers it via saturated steam to the condenser. This heats the combustion air and thus increases the thermal efficiency of a small heat source.

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“…Measuring unit is used in experimental measurements for converting signal of measuring sensors [8,9]. For the accurate measurement in experimental measurements is necessary sensors calibration [10,11,12].The output of the measuring unit is connected to a laptop, which wrote all measured values from the experimental device every 15 s via measuring software. The amount of thermal performance transferred by the gravitational heat pipe was determined by calculating a calorimetric equation, which is widely used in experiments solutions of heat transfer [13,14,15].…”

Section: Measurement Of Performance Parameters Of a Gravitational Heamentioning

confidence: 99%

Design of a Heat Exchanger Made of Gravity Heat Pipes with an Enlarged Heat Exchange Surface for Heat Dissipation from the Electrical Cabinet

Němec

2020

MATEC Web Conf.

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Due to the great progress in the electronics industry, heat management in electronic components is becoming a serious and important problem. Cooling of electronic components ensures a lower occurrence of failure of elements, longer service life of the device, protection against overheating of elements, further prevents malfunction of the device and loss of heat. In many cases, heat dissipation by natural convection is often insufficient. Heat dissipation by forced convection is effective, but it carries the risk of clogging the interior of the electrical cabinet with dust, which can negatively affect the functionality of the electrical elements over time. One of the possibilities of efficient heat dissipation from the electrical cabinet without forced convection is by means of heat pipe technology, which uses a phase change of the working substance for heat transfer. The article deals with the design, construction and experimental determination of the performance of gravity heat tubes with an increased heat exchange area suitable for the design of an electrical cabinet heat exchanger.

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Analysis of the fill amount influence on the heat performance of heat pipe

Cited by 16 publications

References 2 publications

The Effect of Convection on the Thermal Power Change of Loop Thermosyphon

The Effect of Convection on the Thermal Power Change of Loop Thermosyphon

Increase the efficiency of the fireplace insert with loop heat pipe

Design of a Heat Exchanger Made of Gravity Heat Pipes with an Enlarged Heat Exchange Surface for Heat Dissipation from the Electrical Cabinet

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