The performance improvement of direct injection engines in cold start conditions integrating with phase change material: Energy and exergy analysis

Kaltakkiran, Galip; Ceviz, Mehmet Akif

doi:10.1016/j.est.2021.102895

Cited by 11 publications

(2 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Moreover, the intake temperature was increased by about 30 °C, and the CO emissions were reduced by about 12%. Kaltakkran et al [58] proposed a technique for storing thermal energy with phase change materials (PCMs). Using coolant waste heat as the heat source, the latent and dominant warmth stored in the PCM is transferred to the diesel engine intake manifold, potentially raising the intake temperature at cold start.…”

Section: Intake Heatingmentioning

confidence: 99%

Strategies to Reduce Emissions from Diesel Engines under Cold Start Conditions: A Review

Zhang

Huang

et al. 2023

Energies

View full text Add to dashboard Cite

Reducing diesel engine emissions under cold start conditions has become much more valuable as environmental issues become more important. Regarding diesel engine emissions under cold start conditions, this review summarizes the emission mechanisms and specifically focuses on the research progress of four reduction strategies: biodiesel utilization, intake heating, injection optimization, and aftertreatment technologies. In general, adding biodiesel and Di-Ethyl-Ether (DEE) could provide the benefit of reducing emissions and maintaining engine performance. Intake heating and appropriate injection strategies could also effectively reduce emissions under cold start conditions. Unlike normal operating conditions, lean nitrogen oxide traps (LNT) or electrically heated catalysts (EHC) should be utilized in the aftertreatment of diesel engines to minimize emissions under cold start conditions. By offering the valuable information above, this review could be a helpful reference in reduction strategies for diesel engines under cold start conditions in both academia and industry.

show abstract

Section: Intake Heatingmentioning

confidence: 99%

Strategies to Reduce Emissions from Diesel Engines under Cold Start Conditions: A Review

Zhang

Huang

et al. 2023

Energies

View full text Add to dashboard Cite

show abstract

“…The tank, with suitable dimensioning, stores part of the energy of the exhaust gases, which is then used when the temperature drops below the phase transformation temperature of the PCM material [18]. A suitably dimensioned heat storage tank partially solves the problem of a cold start, because after a short shutdown of the vehicle and shutting down of the engine, the exhaust gases are able to reach the required temperature faster [19].…”

mentioning

confidence: 99%

Exhaust Gas Temperature Pulsations of a Gasoline Engine and Its Stabilization Using Thermal Energy Storage System to Reduce Emissions

2022

View full text Add to dashboard Cite

Modern automotive gasoline engines have highly efficient after-treatment systems that reduce exhaust gas emissions. However, this efficiency greatly depends on the conditions of the exhaust gas, mainly the temperature and air–fuel ratio. The temperature instability during transient conditions may cause a reduction in the efficiency of the three-way catalyst (TWC). By using a thermal energy storage system before TWC, this negative effect can be suppressed. In this paper, the effects of the temperature stabilization on the efficiency of the three-way catalyst were investigated on a 1-D turbocharged gasoline engine model, with a focus on fuel consumption and emissions. The thermal energy storage system (TESS) was based on PCM materials and was built in the exhaust between the turbine and TWC to use the energy of the exhaust gas. Three different materials were picked up as possible mediums in the storage system. Based on the results, the usage of a TESS in a gasoline after-treatment system has shown great potential in improving TWC efficiency. This approach can assist the catalyst to operate under optimal conditions during the drive. In this study, it was found that facilitating the heat transfer between the PCM and the catalyst can significantly improve the emissions’ reduction performance by avoiding the catalyst to light out after the cold start. The TESS with PCM H430 proved to reduce the cumulative CO and HC emissions by 8.2% and 10.6%, respectively, during the drive. Although a TES system increases the after-treatment cost, it can result in emission reductions and fuel consumption over the vehicle’s operating life.

show abstract

Exergy, exergoeconomic, enviroeconomic, and sustainability index analysis of diesel engine fueled by binary combinations of diesel/waste animal fat biodiesel

Şimşek

Gürüf

Uslu

et al. 2023

J Therm Anal Calorim

View full text Add to dashboard Cite

The performance improvement of direct injection engines in cold start conditions integrating with phase change material: Energy and exergy analysis

Cited by 11 publications

References 44 publications

Strategies to Reduce Emissions from Diesel Engines under Cold Start Conditions: A Review

Strategies to Reduce Emissions from Diesel Engines under Cold Start Conditions: A Review

Exhaust Gas Temperature Pulsations of a Gasoline Engine and Its Stabilization Using Thermal Energy Storage System to Reduce Emissions

Exergy, exergoeconomic, enviroeconomic, and sustainability index analysis of diesel engine fueled by binary combinations of diesel/waste animal fat biodiesel

Contact Info

Product

Resources

About