Challenges and Solutions for Utilization of Bioliquids in Microturbines

Seljak, Tine; Pavalec, Klemen; Buffi, Marco; Valera‐Medina, Agustin; Chiaramonti, David; Katrašnik, Tomaž

doi:10.1115/1.4041312

Cited by 12 publications

(10 citation statements)

References 53 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The Malaysian government has been looking at the feasibility of turning biowaste into a commodity to resolve this situation [71]. Besides the economical difficulty, the technological development of gas turbine in handling fuel of a much wider spectrum of physical and chemical properties is also vital in promoting the usage of biomass and biogas [72].…”

Section: Renewable Energymentioning

confidence: 99%

The Trend and Status of Energy Resources and Greenhouse Gas Emissions in the Malaysia Power Generation Mix

et al. 2021

View full text Add to dashboard Cite

Environmental issues in energy policy, especially global warming, have received more attention lately than ever before. Excessive dependence on fossil fuels, deforestation, and land degradation are the three main factors that lead to increased carbon dioxide (CO2) emissions. Consequently, the global average temperature has doubled compared to anticipation. Various international protocols and agendas have been established, pledged to restore the global average temperature to the 1990 level. As a result, energy policies worldwide have also undergone various transformations to align with these protocols since then. As a developing nation, Malaysian’s electricity demand has continuously grown in the past two decades. To date, the electricity sector is still dominated by fossil fuels. Government incentives have been the most influential factor in the nation’s energy mix trend. Several energy policies implemented throughout the past 22 years have seen the shift from natural gas to coal power in power plants, and in more recent years, renewable energy resources. Numerous studies in the past have independently outlined the status of various energy source in Malaysia. However, they all fell short in providing the greenhouse gas (GHG) emissions in the Malaysian energy sector. Notably, the question that remains to be answered is how GHG emissions have changed in response to the amendment in the energy mix; hence, the effectiveness of policy change in this aspect remains unknown. This paper analysed the past and present trend of Malaysia electricity generation mix and the resultant GHG emissions. In particular, this paper focused on investigating the variation of combined specific GHG emissions in the Malaysian electricity sector, in response to the policy change within the past 22 years. This provides the insight for Malaysian policymakers to evaluate the effectiveness of past policies in GHG emissions and the measures to be taken in future. The finding of this paper shows the attention on the nation’s GHG emissions has evolved over the years, following the diversification in energy mix driven by the policy change. It was also found that, on average, it took a decade for a significant reduction in specific GHG emission to be visible since the government’s energy policy implementation.

show abstract

Section: Renewable Energymentioning

confidence: 99%

The Trend and Status of Energy Resources and Greenhouse Gas Emissions in the Malaysia Power Generation Mix

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Another unique characteristic of such machines is that the shaft rotation is achieved on IJEEI ISSN: 2089-3272  air bearings without any requirement for lubrication and there no gearboxes and coolants, which translate to relatively low maintenance. They also generate relatively low emissions [47,50]. The development of heat energy in mTs is also an advantage for combined heat and power applications [49][50][51].…”

Section: Microturbinesmentioning

confidence: 99%

“…They also generate relatively low emissions [47,50]. The development of heat energy in mTs is also an advantage for combined heat and power applications [49][50][51]. A network of mTs may be a potential source of electrical power generation for grid-independent applications.…”

Section: Microturbinesmentioning

confidence: 99%

Voltage Rise Problem in Distribution Networks with Distributed Generation: A Review of Technologies, Impact and Mitigation Approaches

Makinde

Akinyele

Amole

2021

IJEEI

View full text Add to dashboard Cite

Energy demand has constantly been on the rise due to aggressive industrialization and civilization. This rise in energy demand results in the massive penetration of distributed generation (DG) in the distribution network (DN) which has been a holistic approach to enhance the capacity of distribution networks. However, this has led to a number of issues in the low voltage network, one of which is the voltage rise problem. This happens when generation exceeds demand thereby causing reverse power flow and consequently leading to overvoltage. A number of methods have been discussed in the literature to overcome this challenge ranging from network augmentation to active management of the distribution networks. This paper discusses the issue of voltage rise problem and its impact on distribution networks with high amounts of distributed energy resources (DERs). It presents different DG technologies such as those based on conventional and unconventional resources and other DERs such as battery storage systems and fuel cells. The study provides a comprehensive overview of approaches employed to curtail the issue of voltage increase at the point of common coupling (PCC), which includes strategies based on the network reinforcement methodology and the active distribution network management. A technoeconomic comparison is then introduced in the paper to ascertain the similarities and dissimilarities of different mitigation approaches based on the technology involved, ease of deployment, cost implication, and their pros and cons. The paper provides insights into directions for future research in mitigating the impact of voltage rise presented by grid-connected DGs without limiting their increased penetration in the existing power grid.

show abstract

“…While capacity growth for biofuels remains slow at present, this pattern is expected to increase in the coming decades as biofuels are becoming recognised as viable substitutes for fossil-based energy sources [5]. On this basis, gas turbine manufacturers have delved into fuel-flexible technology, enabling the flexible use of various biofuels in gas turbines [8]. Although biofuels such as bioethanol is highly volatile, explosive and posing great challenge to the equipment design task [9,10], but most biofuels exhibit inferior physical properties than those of conventional fossil fuels, such as higher flash point, higher viscosity and lower calorific value [7].…”

Section: Introductionmentioning

confidence: 99%

Effects of swirler vane angle on palm biodiesel/natural gas combustion in swirl-stabilised gas turbine combustor

Chiong

Valera‐Medina

Chong

et al. 2020

Fuel

Self Cite

View full text Add to dashboard Cite

Combustion characteristics of palm biodiesel/methyl esters (PME) and natural gas (NG) blend were examined using a model gas turbine swirl burner at vane angle (θ) 30°, 45° and 60°. A twin fluid air blast atomiser was utilised for atomising liquid fuel at air-to-liquid ratio (ALR) 2.50.Swirling flow was initiated by using an axial swirler as main air passed through it. Combustible mixture was formed as swirling air flow mixed up with liquid fuel spray at burner outlet. Flame colour for PME/NG was mainly bluish, resembling that of neat PME despite subtle liftoff was observed in PME/NG swirl flames. Flame spectroscopic analysis showed that PME/NG swirl flames were more intense than baseline PME. Furthermore, θ = 60° operation led to significantly lower reaction intensity. Meanwhile, PME/NG combustion with 20%-30% NG input power fraction was observed to lower nitric oxide (NO) emission by a factor of 2.7 when compared with diesel and neat PME in θ = 60° combustion. Novel empirical models for emissions were also proposed, enabling the estimation of NO emission from PME/NG combustion at different NG input power proportions and vane angle. This research shows that PME/NG combustion is a promising way of reducing NO emission against neat PME and diesel in gas turbine operation.Moreover, flame instability provoked by liftoff in dual fuel operation is not aggravated, mainly due to nullification by intensified global reaction when NG is added. Such attributes feature PME/NG as a viable alternative fuel for use in land-based power generation gas turbines.

show abstract

Challenges and Solutions for Utilization of Bioliquids in Microturbines

Cited by 12 publications

References 53 publications

The Trend and Status of Energy Resources and Greenhouse Gas Emissions in the Malaysia Power Generation Mix

The Trend and Status of Energy Resources and Greenhouse Gas Emissions in the Malaysia Power Generation Mix

Voltage Rise Problem in Distribution Networks with Distributed Generation: A Review of Technologies, Impact and Mitigation Approaches

Effects of swirler vane angle on palm biodiesel/natural gas combustion in swirl-stabilised gas turbine combustor

Contact Info

Product

Resources

About