Experimental investigation on the use of water-phase change material storage in conventional solar water heating systems

Al‐Hinti, I.; Al-Ghandoor, A.; Maaly, A.; Naqeera, I. Abu; Al-Khateeb, Z.; Al-Sheikh, O.

doi:10.1016/j.enconman.2009.08.038

Cited by 126 publications

(25 citation statements)

References 8 publications

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“…[6][7][8][9][10]. Paraffin were used for different solar thermal storage applications [11][12][13][14][15] and heat recovery systems in pure or composite form [16,17]. Similarly fatty acids and their mixtures were also studied as PCMs for various domestic solar heating applications with good performance [18][19][20][21].…”

Section: A)mentioning

confidence: 99%

Preparation, characterization, and performance study of beeswax/expanded graphite composite as thermal storage material

Dinker

Agarwal

2016

Experimental Heat Transfer

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In this study beeswax a new energy storage material and its composite with expanded graphite was prepared, and characterized for its surface and thermal properties. Surface characterization showed no chemical interaction between beeswax and expanded graphite.The thermal conductivity of composite was improved with 117% enhancement. Thermal performance of beeswax and its composite as heat storage material was studied in a rectangular shell and tube thermal storage unit. Melting point of the composite remained almost same as that of beeswax however, melting time reduced considerably from 540 min to 360 minutes with inlet water at 80ºC and 2lpm flow rate.

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Section: A)mentioning

confidence: 99%

Preparation, characterization, and performance study of beeswax/expanded graphite composite as thermal storage material

Dinker

Agarwal

2016

Experimental Heat Transfer

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“…However, the researchers observed that the hydrated salts must be encapsulated by expensive techniques to overcome its instability after 25–30 melting–solidification cycles. Al‐Hinti et al presented an experimental investigation for utilizing paraffin wax with a melting temperature of 54°C in a conventional active solar water heating system. The experiments were performed under real weather conditions in Jordan during the month of April.…”

Section: Pcm In Water Tes Tankmentioning

confidence: 99%

Review of the phase change material (PCM) usage for solar domestic water heating systems (SDWHS)

et al. 2017

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Summary The shortage in energy resources combined with the climb in greenhouse emissions is the main incentive beyond the deployment of solar energy resource in various applications. One of the most successful applications is the utilization of solar energy in the domestic water heating systems (DWHS) because 70% of the consumed energy in the residential segment is utilized for space heating and appliances in cold climates . However, the full deployment of solar energy in domestic water heating is only possible when an energy storage system with acceptable price is available. Recently a new tendency for deploying phase change materials (PCMs) as an energy storage system is introduced in several solar DWHS. These systems are known as integrated PCM in solar DWHS and offer several advantages including high storage capacity, low storage volume, and isothermal operation during the charging and discharging phases. The present study reviews various techniques utilized for integrating the PCM in solar water heating systems and the utilized methods for enhancing the heat transfer characteristics of the PCM through the usage of extended surfaces and high conductive additives. Copyright © 2017 John Wiley & Sons, Ltd.

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“…It was concluded that the combined storage system gave better performance than the conventional system. Hinti et al presented an experimental investigation of water‐PCM storage for a DHWS. The system showed improvement in two cases: (a) under controlled energy input using an electrical heater, and (b) under connection to a solar collector.…”

Section: Introductionmentioning

confidence: 99%

Improving clean energy greenhouse heating with solar thermal energy storage and phase change materials

2019

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Greenhouses consume a great deal of energy to heat their building envelopes.The strategic integration of solar energy and thermal energy storage (TES) can help to boost energy performance and reduce the carbon emission in the sector. In this paper, the benefits of adding phase change materials (PCM) to the water tank of a solar heating system have been evaluated using the Transient System Simulation (TRNSYS) program. Initially, the hourly heating load of a reference greenhouse was evaluated using TRNSYS software. The results were validated with natural gas consumption data. The validated simulation was then used to investigate the impact of PCM on the performance of a large-scale solar energy system. Four system configurations were evaluated; no PCM materials in the tank, then 20%, 40%, and 60% of the water tank volume occupied by PCM. Energy performance improvements of 10% to 14% were observed by increasing the proportion of PCM amounts over the baseline conventional system. Finally, an economic study was conducted to investigate the cost feasibility of different PCM concentrations. It was shown that PCM price, cost of natural gas, and carbon tax are the principal influence factors on the payback period. K E Y W O R D Sgreenhouse, phase change material (PCM), solar heating system

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Experimental investigation on the use of water-phase change material storage in conventional solar water heating systems

Cited by 126 publications

References 8 publications

Preparation, characterization, and performance study of beeswax/expanded graphite composite as thermal storage material

Preparation, characterization, and performance study of beeswax/expanded graphite composite as thermal storage material

Review of the phase change material (PCM) usage for solar domestic water heating systems (SDWHS)

Improving clean energy greenhouse heating with solar thermal energy storage and phase change materials

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