Thermal performance of pin fin heat sinks with phase change
In order to maintain the chip below the limit temperature of 80 C, ZDJN-35 with a phase change temperature of 37 ∼ 45 C is selected as the energy storage material. Under
Progress in the Study of Enhanced Heat Exchange in Phase
In comparison with sensible heat storage devices, phase change thermal storage devices have advantages such as high heat storage density, low heat dissipation loss, and good
High power density thermal energy storage using additively manufactured heat exchangers and phase change
We demonstrate a thermal energy storage device using phase change material (PCM). • The power density is 0.58 W/cm 3, higher than other types of PCM heat sinks. • The high performance is enabled by novel additively manufactured geometries. •
Phase change material-based thermal energy storage
Phase change material (PCM)-based thermal energy storage significantly affects emerging applications, with recent advancements in enhancing heat capacity and cooling power. This perspective by Yang et al. discusses
Enhanced energy management performances of passive cooling, heat storage and thermoelectric generator by using phase change
In this study, we demonstrate a thermal energy management structure that combines a TEG and PCM-based copper foam for passive cooling, heat storage and electrical energy harvest. The effects of adding PCM and metal foam, as well as phase-change temperature of paraffin and porosity of metal foam on the phase-change thermal
Improving the performance of heat sinks through the integration of fins and the utilization of graphene-mixed latent heat energy storage
1. Introduction The performance of typical thermal systems is affected by the accumulation of heat during their operation. Recent technological advancements reduced the system''s size but gave rise to heat accumulation. Through literature [40], it is revealed that heat generation in a heat sink connected to an electronic chip increased from 50
Energy impact of heat pipe-assisted microencapsulated phase change material heat sink
Lee et al. proposed a high-performance phase change material (PCM)-based heat sink to increase the temperature difference of the flexible TEG. The experiment results showed that the flexible TEG could generate power at approximately 20 μW/cm 2 [7].
Thermal performance of phase change material–based heat sink
The heat transfer characteristics of the widely used phase change material (PCM)-based heat sinks under hypergravity conditions are essential in the designation of the heat sink. The current study conducts a systematic evaluation on the thermal characteristics of PCM coupled with hybrid fin-metal foam (FMF) structure under variable
Review of the heat transfer enhancement for phase change heat
In this review, by comparing with sensible heat storage and chemical heat storage, it is found that phase change heat storage is importance in renewable energy
Recent developments in phase change materials for energy storage
The materials used for latent heat thermal energy storage (LHTES) are called Phase Change Materials (PCMs) [19]. Hangzhou Phase Change Technology Co., Ltd Microencapsulated PCM, MicroPCM Intelligent Attemperation Textiles, PCM balls/pouches,
Thermal performance of phase change material–based heat sink
The heat transfer characteristics of the widely used phase change material (PCM)-based heat sinks under hypergravity conditions are essential in the designation of
Phase change material-based thermal energy storage
Phase change materials (PCMs) having a large latent heat during solid-liquid phase transition are promising for thermal energy storage applications. However, the relatively low thermal conductivity of the majority of promising PCMs (<10 W/(m ⋅ K)) limits
Buildings | Free Full-Text | A Review of Phase Change Materials as a Heat Storage
Latent heat thermal energy storage (LHTES) employing phase change materials (PCMs) provides impactful prospects for such a scheme, thus gaining tremendous attention from the scientific community. The primary goal of the current article is to provide a comprehensive state-of-the-art literature review on PCM-based TES for cooling
Numerical study on 2-stage phase change heat sink for cooling of
The temperature controlling ability of 2-stage heat sink is better than 1-stage. Photovoltaic (PV) devices play an increasingly important role in solving the energy crisis. However, the conversion efficiency of the PV panel is small. Cooling of PV panels using phase change devices is an effective way to improve the working performance of
Numerical study on 2-stage phase change heat sink for cooling of
A phase change device with a two-level arrangement of metal-organic phase change materials (PCMs) is proposed. The PCM is filled in a metal cavity made of aluminium plates. A numerical model of the melting process of the combined PCMs is established, and the flow and heat transfer characteristics of the melting process are
A parametric study of phase change material (PCM)-based heat sinks
Pinelli, S. Piva, Solid/liquid phase change in presence of natural con- vection: A thermal energy storage case study, Journal of Energy Resources Technology 125 (2003) 190–197. [37] D. Caudwell, J. Trusler, V. Vesovic, W. Wakeham, The viscosity and den- sity of n-dodecane and n-octadecane at pressures up to 200 MPa and
KULR Enters into an Agreement with Lockheed Martin for Heat Sink
SAN DIEGO / GLOBENEWSWIRE / March 26, 2024 / KULR Technology Group, Inc. (NYSE American: KULR) (the "Company" or "KULR"), a global leader in sustainable energy management, today proudly announces receiving a six-figure contract from Lockheed Martin (NYSE: LMT) for developing phase change material ("PCM") heat
Heat transfer enhancement of phase change materials embedded with metal foam for thermal energy storage
As the core material of thermal energy storage technology, phase change materials (PCM) suffer serious leakage problems and slow thermal conductivity in applications. Nanoclay with relatively high
Thermal Performance of a Phase Change Material-Based Heat Sink Subject to Constant and Power Surge Heat
Abstract. A power surge is a frequent phenomenon that occurs in electronics. Inadequate and improper cooling during power surges results in a rapid increase in operating temperatures that may lead to failure of the electronics. In the present investigation, the thermal characteristics of a phase change material (PCM)-based heat
Thermal performance of a 3D printed lattice-structure heat sink packaging phase change material
Phase change energy storage is one of the essential methods to alleviate the mismatch of energy, time, and location. Zalba et al. 4 carried out a literature review of the history of TES with solid-liquid phase change, focusing on the phase change materials, the heat transfer performance, and the applications of the TES system.
Experimental research on heat transfer mechanism of heat sink with composite phase change materials
It can be found that the thermal conductivities of the composite PCMs improve evidently compared to that of pure paraffin. The thermal conductivity of pure paraffin, i.e. the mass percent of expanded graphite is zero, is only 0.2697 W m −1 K −1, and the thermal conductivity of the composite PCM in which the mass percent of expanded
Development and Testing of an Energy Storage Material/Phase
A concept of using energy storage material (ESM) or phase change material (PCM) to enhance the heat transfer dissipation by a conventional compact fin
Heat transfer enhancement technology for fins in phase change energy storage
Conclusion. To improve the heat transfer enhancement effect of fins on phase change heat accumulators and expand their application range, this paper reviews the research progress of fin heat transfer enhancement technology. It discusses fins'' design method and heat transfer mechanism, including their shape, size, quantity, and
Phase change material application in heat sink:
This is due to the fact that for SPT of 65°C, the PCM inside the microcapsules is in the state of phase transfer, and hence, heat sink temperature rises at a slower rate. Download : Download full-size image. Fig. 6.14. Time to reach the SPT of 50°C and 65°C @ 2.51 (W 1) and 5.12 (W 2) kW/m 2. 6.6.
Phase change material as a heat sink for solar photovoltaic: A
This numerical study examines the thermal performance of solar photovoltaic (PV) with phase change material (PCM) as a heat sink under real ambient conditions. A
Transient cooling of electronics using phase change material (PCM)-based heat sinks
PCM-based heat sinks can effectively store the dissipated heat from the components via phase change from solid to liquid to keep the temperature of the electronic devices below a critical temperature. Generally, the global maximum allowable temperatures of various chips range from 85 to 120 °C to prevent damage due to overheating.
[PDF] Methodology for Designing a Hybrid Thermal Energy Storage Heat Sink
Methodology for Designing a Hybrid Thermal Energy Storage Heat Sink. N. Zheng, R. Wirtz. Published in Heat Transfer 5 November 2000. Engineering, Environmental Science. A thermal response model for designing a hybrid thermal energy storage (TES) heat sink is developed. The stabilization time and maximum operating
Improving the performance of heat sinks through the integration of fins and the utilization of graphene-mixed latent heat energy storage
The study examines the efficiency of combining phase change material and nanoparticles in a heat sink with fins, while maintaining a constant heat input. An in-depth examination of the heating and cooling cycles provides valuable understanding of how the heat sink behaves over time in relation to the base temperature [2].
Phase change materials for thermal management and energy storage
Phase change materials (PCMs) are a promising option for latent heat storage due to their high energy density, reliable phase-change temperatures, isothermal characteristics, and cost
Experimental study on melting performance of phase change material-based finned heat sinks by a comprehensive evaluation
The effect of using composite phase change materials (PCMs) filled with high aspect-ratio carbon nanofillers on the transient performance of a thermal energy storage (TES)-based heat sink was
Review of the heat transfer enhancement for phase change heat storage
The heat is converted into internal energy and stored. The heat storage density is about 8–10 times that of sensible heat storage and 2 times that of phase change heat storage. The device is difficult to design because the reaction temperature is usually high [ 9 ]. The research is still in the laboratory stage.
Phase change material as a heat sink for solar photovoltaic: A
Energy Storage is a new journal for innovative energy storage research, covering ranging storage methods and their integration with conventional & renewable systems. Abstract This numerical study examines the thermal performance of solar photovoltaic (PV) with phase change material (PCM) as a heat sink under real ambient conditions.
Improvement of heat sink performance using paraffin/graphite/hydrogel phase change
Phase-changing materials require some distinctive properties such as high heat of fusion per unit mass, high specific heat, and high latent heat storage. Compared to inorganic phase materials Ref. [ [3], [4], [5] ], organic phase change materials are less expensive, have wide melting temperatures, and show a medium range of enthalpies Ref.
Heat transfer enhancement technology for fins in phase change
Compared with the instability of chemical reactions, phase change heat storage can provide a more stable heat source, which is efficient and safe. Due to these
Experimental investigation of nanoparticle enhanced polyol solid–solid phase change material aided heat sink with integrated heat
Heat Sink LHTES Latent Heat Thermal Energy Storage Systems MWCNT Multi-Walled Carbon Nanotube NE_SLPCM Thermal performance of a phase change material-based heat sink in presence of nanoparticles and metal-foam to enhance cooling,
Thermal management of phase change material integrated thermoelectric cooler with different heat sink
The heat sink is located at the hot side of thermoelectric cooler to reduce its temperature and it is exposed to air under natural convection (convective heat transfer region). The thermoelectric cooler consists of Bismuth Telluride (Bi 2 Te 3) based p- and n-type semiconductor thermoelements which are connected electrically in series and
Transient performance of a thermal energy storage-based heat sink using a liquid metal as the phase change
In this Technical Note, the use of a liquid metal, i.e., a low melting point Pb–Sn–In–Bi alloy, as the phase change material (PCM) in thermal energy storage-based heat sinks is tested in comparison to an organic PCM (1
Zero-cooling energy thermoelectric system by phase change material heat sink
(6), using the metal foam enhances the heat transfer rate in the PCM box and make more effectual heat sink by improving thermal conductivity and rate of thermal storage in the energy storage box. The PCM melting process was completed in the system with PCM-Cu heat sink even under the low heat load before the TEG reached the critical
Phase change material as a heat sink for solar photovoltaic: A
This numerical study examines the thermal performance of solar photovoltaic (PV) with phase change material (PCM) as a heat sink under real ambient conditions. A mathematical
Heat transfer enhancement of phase change materials embedded with metal foam for thermal energy storage
PCMs show advantages of isothermal solid-liquid phase change, high latent heat storage capacity, small volume change, non-toxicity, low cost, etc. [13]. However, most of PCMs have a common defect with poor thermal conductivity.
Review on performance enhancement of phase change material based heat sinks
They found that the difference in the heat sink resistance from top and bottom is greater than 27 %, hence changing orientation of heat sink has significant effect on heat sink performance. Sahoo et al. [ 54 ] emphasized on 3D orientation study of HS for better understanding the effect of change in orientation on HS performance.
