Experimental study on heat storage system using phase-change material in a diesel engine

Park, Gwan Soo; Woo, Seungchul; Shon, Jungwook; Lee, Kihyung

doi:10.1016/j.energy.2016.11.063

Cited by 27 publications

(11 citation statements)

References 8 publications

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“… Material. Depending on the chemical composition of the phasechanging agent, the following are different [4,5]:  phase change temperature level,  value of specific heat for the solid phase and for the liquid phase,  value of enthalpy of phase change,  thermal conductivity,  thermal and chemical stability,  etc.…”

Section: Chemical Transformation Heat Storagementioning

confidence: 99%

“…90°C) or from the exhaust system (temperature up to 750°C), which differs depending on the size of the engine, its speed and load [6]. PCM should be chosen so that its melting point is in the temperature range of the system [5].…”

Section: Chemical Transformation Heat Storagementioning

confidence: 99%

“… Safety The material should be non-flammable and non-toxic [4,5].  Availability Ideally, the material should not expensive to buy and its availability on the market not limited in any way [4,5].…”

Section: Chemical Transformation Heat Storagementioning

confidence: 99%

See 2 more Smart Citations

Analysis of thermal parameters of heat storages for use in vehicles with combustion engines

2019

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The propulsion system of a vehicle using an internal combustion engine generates a significant amount of waste heat during operation, which is almost entirely discharged into the environment without any useful effect. One of the ways of using waste heat is storing it, and then using, for example, when starting the engine in winter conditions. The application of the indicated solution, in particular for the combat vehicle will allow to reduce the effects of cold start and will shorten the time of preparing such a vehicle for combat operations. The article presents: types of heat accumulators that could be used in a military vehicle, the results of preliminary tests carried out on the test stand and the impact of an additional heat source on the time of heating the internal combustion engine and on emission of exhaust gas components.

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Section: Chemical Transformation Heat Storagementioning

confidence: 99%

Section: Chemical Transformation Heat Storagementioning

confidence: 99%

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Analysis of thermal parameters of heat storages for use in vehicles with combustion engines

2019

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“…TES systems can also be used to accelerate engine oil and coolant warm-up during engine cold-start. Park et al [18,19] designed a PCM thermal storage system to recover and recycle the waste heat energy of the coolant system. Implementing this TES system on a 1.6-L diesel engine resulted in roughly 40% reduction in the coolant warm-up time to 95°C and a 2.71% decrease in fuel consumption was reported over the NEDC.…”

Section: Introductionmentioning

confidence: 99%

Thermal energy storage system for efficient diesel exhaust aftertreatment at low temperatures

et al. 2019

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Where a licence is displayed above, please note the terms and conditions of the licence govern your use of this document. When citing, please reference the published version. Take down policy While the University of Birmingham exercises care and attention in making items available there are rare occasions when an item has been uploaded in error or has been deemed to be commercially or otherwise sensitive.

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“…LHS systems are employed in number of applications including solar thermal systems, energy management and peak-shaving, waste heat recovery, building heating and air conditioning, agricultural drying units and automobile [7][8][9][10][11][12][13]. However, the widespread practical utilisation of LHS system is still under the influence of low thermal conductivity (≈ 0.2 -0.4 W/m.K) of PCM, which handicaps the rapid charging and discharging of thermal energy [14].…”

Section: Introductionmentioning

confidence: 99%

Experimental investigations of charging/melting cycles of paraffin in a novel shell and tube with longitudinal fins based heat storage design solution for domestic and industrial applications

Khan

2017

Applied Energy

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Due to vulnerability of solar energy based technologies to weather fluctuations and variations in solar thermal irradiance, thermal energy storage (TES) systems with their high thermal storage capacity offer a sustainable solution. In this article, experimental investigations are conducted to identify thermal performance of latent heat storage (LHS) unit in connection with flat plate solar collector during charging cycles. LHS unit is comprised of novel geometrical configuration based shell-andtube heat exchanger with longitudinal fins, paraffin as thermal storage material and water as heat transfer fluid (HTF). In order to overcome the effect of low thermal conductivity of paraffin, the effective surface area and overall thermal conductivity for heat transfer is significantly improved by employing longitudinal fins. Moreover, the vertical orientation of longitudinal fins supports natural convection, which can assure rapid charging of paraffin in LHS unit. In experimental tests, the focus is on probing the heat transfer mechanism and temperature distribution in entire novel LHS unit, the influence of inlet temperature and volume flow rate of HTF on phase transition rate and mean power. Experimental results revealed that natural convection significantly influences the phase transition rate. Therefore, enthalpy gradient is noticed between paraffin at top, central and bottom positions in LHS unit. Likewise, the phase transition rate and mean power of LHS unit is significantly increased by a fraction of 50.08% and 69.71% as the inlet temperature of HTF is increased from 52 o C to 67 o C, respectively. Similarly, it is concluded that volume flow rate of HTF has a relatively moderate influence on thermal performance; however the influence declines with an increase in inlet temperature of HTF. Due to significant enhancement in thermal performance, the novel geometrically configured LHS unit can accumulate about 14.36 MJ of thermal energy in as less as 3 hours. Furthermore, a broad range of domestic and commercial energy demands can be fulfilled by simply assembling several LHS units in parallel sequence.

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Experimental study on heat storage system using phase-change material in a diesel engine

Cited by 27 publications

References 8 publications

Analysis of thermal parameters of heat storages for use in vehicles with combustion engines

Analysis of thermal parameters of heat storages for use in vehicles with combustion engines

Thermal energy storage system for efficient diesel exhaust aftertreatment at low temperatures

Experimental investigations of charging/melting cycles of paraffin in a novel shell and tube with longitudinal fins based heat storage design solution for domestic and industrial applications

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