Preparation, characterization and feasibility analysis of methyl ester of Sesbania seeds oil (MESSO) as alternate liquid dielectrics in distribution transformers

Ravulapalli, Sujitha; Ravindhranath, K.; Ramamoorty, M.

doi:10.1039/c8ra08378a

Cited by 23 publications

(14 citation statements)

References 41 publications

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“…Although there was some skepticism, as reported above, there were other publications that suggested the use of vegetable oils, since these presented a dielectric strength comparable to that of mineral oil and the saturated fatty acid content in such oils retarded the deterioration of the insulating fluid in hightemperature environments or long-term storage conditions. Moreover, vegetable oils showed more cooling ability and high insulation capacity than mineral oil [50]. Authors in [51] agree with [50], reporting that while oxidation of mineral oil produces sludge precipitates, vegetable oils are much more resistant to oxidation.…”

Section: Possible Alternatives To Transformer Oimentioning

confidence: 77%

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Alternative Fluids – with a Particular Emphasis on Vegetable Oils – as Replacements of Transformer Oil: A Concise Review

Danikas

Sarathi

2020

Eng. Technol. Appl. Sci. Res.

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For many decades transformer oil has served as a well-known insulating medium. Its electrical properties, among others, have been studied in length. In recent years, with the increasing concern for the environment, alternative insulating liquids have been proposed. In the context of this concise review, such alternative fluids are investigated. Some conflicting evidence regarding experimental results that still persist are discussed and aspects of vegetable oils in need of further work are pointed out.

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Section: Possible Alternatives To Transformer Oimentioning

confidence: 77%

“…Moreover, vegetable oils showed more cooling ability and high insulation capacity than mineral oil [50]. Authors in [51] agree with [50], reporting that while oxidation of mineral oil produces sludge precipitates, vegetable oils are much more resistant to oxidation.…”

Section: Possible Alternatives To Transformer Oimentioning

confidence: 77%

Alternative Fluids – with a Particular Emphasis on Vegetable Oils – as Replacements of Transformer Oil: A Concise Review

Danikas

Sarathi

2020

Eng. Technol. Appl. Sci. Res.

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“…Sesbania aculeate oil, Potassium hydroxide (KOH), and methanol (CH3OH) is taken as raw materials in the SAOME biodiesel production. Note that Sujitha et al [27] prepared methyl ester of sesbania seed oil (MESSO), an insulating fluid by transesterification process for transformers. They employed the transesterification process in which 1:6 ratios of sesbania oil and methanol, concentrated H2SO4 as catalysts are used to produce an insulating fluid with high thermal and oxidation stability.…”

Section: Methods and Materials Biodiesel Productionmentioning

confidence: 99%

Performance and emission study of sesbania aculeate biodiesel in a VCR diesel engine

Mallesham¹,

Krishnaraj²,

Ravikiran³

2020

JMES

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The increasing energy demand and pollution due to fossil fuels influence the necessity of finding a appropriate alternative fuel for a cleaner environment and to sustain the usage of diesel engines in the automobile sector. This research focuses on such exploration of new alternative fuel (biodiesel) and to study its effect on emission and the performance parameters at a 1500 rpm constant speed on a 4-stroke, single-cylinder, variable compression ratio (VCR) diesel engine. The biodiesel from the sesbania aculeate seed oil is produced through the transesterification process. The blends of sesbania aculeate oil methyl ester (SAOME) with diesel mixture SAOME10, SAOME20, SAOME30, and SAOME40 are used as fuels at various engine loads (20% to 100%) and different compression ratios (CR) (16.5, 17.5 and 18.5). The emission and performance indicators of the proposed biodiesel are analyzed and an evaluation is made with diesel. The experimental outcomes demonstrate that for SAOME20, brake specific fuel consumption (BSFC) and brake thermal efficiency (BTE) are respectively 12.3% lesser and 8.21% higher than diesel under peak load at CR 18.5. Also the experimental investigation confirms a significant emission decrease in NOX, HC, and CO when there is an increase in CR and load.

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“…The investigations conducted by Umal et al on Neem Oil Epoxy Methyl Esters showed that its dielectric losses are in the dielectric loss range of the bio-based insulating oils [10]. According to the work of Ravulapalli et al, the dielectric losses and the volume resistivity of Methyl Ester of Sesbania Seeds oil are higher than those of mineral oil [11].…”

Section: Mariprasath Et Al Found That the Breakdown Voltage Of The Imentioning

confidence: 99%

Elaboration and Performance Analysis of a Bio-Based Insulating Liquid from Castor Oil for Power Transformers

Nkouetcha¹,

Mengounou²,

Imano³

2019

OALib

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The research for new mineral oil substitutes focuses on vegetable oils known for their biodegradability and low toxicity. This paper focuses on the development and analysis of physicochemical and dielectric properties of a bio-based insulating liquid from castor oil. Castor oil is an inedible tropical resource. It has a good annual oil yield and is widely available in developing countries. Cold pressing of castor seeds is the most appropriate non-chemical process for extracting oil. A refining process was used to remove metal and chemical residues. Refined Castor Oil was filtered and degassed in order to minimize the dissolved gases, solid particles and moisture. A transesterification operation was performed to significantly reduce viscosity oil. Finally, obtained Castor Oil Methyl Esters (COME) are finally distilled in a rotary evaporator under vacuum to remove traces of water and methanol. Physicochemical properties as visual examination, relative density, kinematic viscosity, and acidity were measured in accordance with ASTM D6871. AC Breakdown voltage was performed according to IEC 60156, and had been analyzed using Weibull distribution. Processed Castor Oil (PCO) has low viscosity than certified transformer vegetable oils (BIOTEMP, FR3) and high Dielectric Strength (74.67 kV/2.5 mm). Partial Discharges characteristics including the Partial Discharge Inception Voltage and the Partial Discharge Propagation Voltage were also investigated according to the recommendations of IEC 61294. PCO has satisfactory properties for their use as an insulating oil for transformer.

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Preparation, characterization and feasibility analysis of methyl ester of Sesbania seeds oil (MESSO) as alternate liquid dielectrics in distribution transformers

Abstract: Graphical presentation of the processing of methyl ester of Sesbania seeds oil (MESSO) as an alternative dielectric in transformers.

Cited by 23 publications

References 41 publications

Alternative Fluids – with a Particular Emphasis on Vegetable Oils – as Replacements of Transformer Oil: A Concise Review

Alternative Fluids – with a Particular Emphasis on Vegetable Oils – as Replacements of Transformer Oil: A Concise Review

Performance and emission study of sesbania aculeate biodiesel in a VCR diesel engine

Elaboration and Performance Analysis of a Bio-Based Insulating Liquid from Castor Oil for Power Transformers

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