Multiple Phase Change Material (PCM) Configuration for PCM-Based Heat Sinks—An Experimental Study

Abstract

A small-scale phase change material (PCM)-based heat sink can regulate the temperature of electronics due to high latent-heat capacity. Three different heat sinks are examined to study the effects of PCM combination, arrangement of PCMs in multiple-PCM heat sink, PCM thickness, melting temperature and intensity of heat source on the thermal behavior of heat sink. Results are obtained for the temperature distribution across the heat sink and the PCM melting profile. It is concluded that (i) PCM combination RT50-RT55 increases the thermal regulation period and also reduces the heat sink temperature at the end of the operation, (ii) the RT58-RT47 arrangement slightly reduces the maximum temperature as compared to RT47-RT58, (iii) As PCM thickness increases from 30 mm to 60 mm, the thermal-regulation-period increases by 50 min, (iv) As the PCM melting temperature increases, the thermal-regulation-period and the heat sink temperature increase and (v) The thermal-regulation-period decreases as the power rating increases from 1 to 2 W.

Electrical enhancement period of solar photovoltaic using phase change material

“…Tracking setups with paraffin wax as PCM have been experimentally monitored by Su et al (2018) in Macau and an effective enhancement of 10% in electrical output has been achieved. Siyabi et al (2018aSiyabi et al ( , 2018b have used multiple PCM heat sink and stacked heat sink for the purpose of thermal management. Brano et al (2014) have simultaneously studied the impact of time and space using forward and central difference models respectively using paraffin wax 27 as PCM.…”

Convective Heat Transfer Enhancement through Laser-Etched Heat Sinks: Elliptic Scale-Roughened and Cones Patterns

“…Instead, air-based cooling solutions are generally more suitable for everyday devices, thanks to their reliability and cheapness. Among this category, innovative configurations have been lately studied to enhance the heat transfer capability and include the use of unshrouded plate fins [10], pin fin arrays [17,18], ribs [19][20][21], dimples [22,23], carbon nanotubes structures [24], arrays of protrusions [25,26], Pitot tubes [27], innovative roughened surfaces [28,29], porous media [30,31], phase-change materials [32,33], or metal foams [34,35].…”

A Novel Encapsulation Method for Phase Change Materials with a AgBr Shell as a Thermal Energy Storage Material

“…Nowadays, the major issues to be settled urgently in the process of human sustainable development are the increasing energy crisis, high cost of fossil fuels, and environmental problems [1][2][3][4]. Phase change material (PCM), as an environmentally friendly energy storage material that can absorb/release large amounts of thermal energy during its phase transition process [5], is conducive to making energy utilization more efficient and eliminating the mismatch between energy generation and consumption [6], and therefore it is particularly important in the energy-saving process [7][8][9][10].…”