Design and Fabrication of a Novel Hybrid-Structure Heat Pipe for a Concentrator Photovoltaic

Huang, Huey‐Jy; Shen, Sheng Chih; Shaw, Heiu-Jou

doi:10.3390/en5114340

Cited by 31 publications

(8 citation statements)

References 15 publications

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“…In yet another study, a hybrid‐structured flat copper heat pipe with sintered wick supported by coronary‐stent‐like mesh was designed and analyzed through experiment. The results revealed a reduction of 65% in total thermal resistance and an increase of 3.1% electrical efficiency of CPV . Liquid immersion cooling was used to study the performance of the silicon solar cell under a concentration of 10 to 30 Suns and the results showed an increase in the cell efficiency by 8.5% to 15.2% …”

Section: Introductionmentioning

confidence: 98%

An experimental study on thermal management of concentrated photovoltaic cell using loop heat pipe and heat sink

Anand

Kumar

Balasubramanian

et al. 2019

Heat Trans. Asian Res.

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One of the most critical innovations in the solar energy conversion is the use of concentrators for generating power from a smaller area of the cell. The thermal management has an exceptional role in the concentrated photovoltaic (CPV) cell, without which the operating temperature will increase owing to the thermal degradation. In the present study, a prototype of low CPV with single‐cell configuration using a Fresnel lens and a manual tracker with geometrical concentration ratio of up to 25 Suns is made. The performance of the CPV with passive cooling arrangements, such as heat sink and loop heat pipes (LHPs), is analyzed under real‐time outdoor conditions. The results obtained infer that the LHP‐based cooling system has brought down the average temperature rise above ambient to 37.8°C from 54.16°C and 72.6°C in the heat sink and bare CPV systems, respectively. Also, the LHP managed to reject the heat to the surrounding with an average thermal resistance of 1.005°C/W, which is the least when compared with the heat sink. Apart from the instabilities caused by the interference of clouds, the CPV with the LHP cooling system could generate 10% more power output than the one with a heat sink.

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Section: Introductionmentioning

confidence: 98%

An experimental study on thermal management of concentrated photovoltaic cell using loop heat pipe and heat sink

Anand

Kumar

Balasubramanian

et al. 2019

Heat Trans. Asian Res.

View full text Add to dashboard Cite

show abstract

“…In CPV‐PCM systems, the choice of coolant is less constrained because there is less need for heat storage. Huang et al fabricated a hybrid heat pipe structure with pure water as working fluid for HCPV. Xu et al designed a microchannel cooling method with silicon channels and water for working fluid.…”

Section: Introductionmentioning

confidence: 99%

Comparative study of high concentrating photovoltaics integrated with phase-change liquid film cooling system

et al. 2019

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Summary In high concentrating photovoltaic systems, thermal regulation is of great importance to the conversion efficiency and the safety of solar cells. Direct‐contact liquid film cooling technique is an effective way of thermal regulation with low initial investment. Tilt of solar cells is common in concentrating solar systems. An evaluation of direct‐contact liquid film cooling technique behind tilted high concentration photovoltaics was performed using both experimental and computational approaches. In the experiment, deionized water was used as the coolant at the back of simulated solar cells. Solar cell inclination of 0° to 75° with inlet water flow rate of 100–300 L/hour and inlet temperature of 30°C to 75°C were experimentally investigated. A two‐dimensional model was developed using computational fluid dynamics technique and validated by experimental results. The effects of inclination on average temperature, temperature uniformity, and heat transfer coefficient were discovered in this paper. The results indicated that 20° is the optimum angle for liquid film cooling. In addition, optimum inlet width, temperature, and velocity for inclination over 30° are 0.75 mm, 75°C, and 0.855 m/s, respectively.

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“…Peigné et al [3] designed a system to heat a low-energy building by coupling a heat-recovery ventilation system with a three-fluid heat exchanger located on the chimney of a wood-pellet stove and their case study results showed that heat transfer rates can be predicted with a relative difference lower than 5%. A study by Huang et al [4] fabricated a novel hybrid-structure flat plate heat pipe for a concentrator photovoltaic system and the results indicated that it can reduce thermal resistance by 65% after a supporting structure is added to the heat pipe.…”

Section: Introductionmentioning

confidence: 99%

Research on Energy Saving Potential for Dedicated Ventilation Systems Based on Heat Recovery Technology

Zhang

2014

Energies

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Abstract:Research results have identified the use of heat pipe heat exchangers (HPHXs) for heat recovery as a way to reduce the pre-cooling and re-heating energy. This paper suggests decoupling dehumidification from cooling to reduce energy consumption. The feasible usage and the energy saving potential of heat pipe heat exchanger at the air handler dedicated in accomplishing this objective is investigated. In this paper a dedicated ventilation system combined with a HPHX to reduce energy consumption is tested and investigated under varying conditions by laboratory experiments. The energy saving potential and heat pipe (HP) effectiveness are tested and calculated under various outdoor conditions. The simulation and experimental results demonstrate that for all cases examined, the average HP effectiveness and energy savings have the same trend at various outdoor temperatures and Relative Humidity (RH) values. It has been found that the heat pipe can be applied to save over 60% energy for the air-conditioning operating hours. The reduction in overall energy is from 1.8% to 2.8% for the whole system. Therefore, the results confirm that the proposed set-up is useful for buildings to achieve intended energy saving objectives in subtropical climates where air-conditioning demand is highly variable.

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Design and Fabrication of a Novel Hybrid-Structure Heat Pipe for a Concentrator Photovoltaic

Cited by 31 publications

References 15 publications

An experimental study on thermal management of concentrated photovoltaic cell using loop heat pipe and heat sink

An experimental study on thermal management of concentrated photovoltaic cell using loop heat pipe and heat sink

Comparative study of high concentrating photovoltaics integrated with phase-change liquid film cooling system

Research on Energy Saving Potential for Dedicated Ventilation Systems Based on Heat Recovery Technology

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