Performance of cycle diesel engine using Biodiesel of olive oil (B100)

Biodiesel is a renewable fuel derived from vegetable oils used in diesel engines, in any proportion with petroleum diesel, or pure. It is produced by chemical processes, usually by transesterification, in which the glycerin is removed. The objective of this study was to compare the performance of a four stroke, four cylinder diesel cycle engines using either olive (B100) biodiesel oil or diesel oil. The following parameters were analyzed: effective and reduced power, torque, specific and hourly fuel consumption, thermo-mechanical and volumetric efficiency. Analysis of variance was performed on a completely randomized design with treatments in factorial and the Tukey test applied at the level of 5%. Five rotation speeds were researched in four replications (650, 570, 490, 410, 320 and 240 rpm). The engine fed with biodiesel presented more satisfactory results for torque, reduced power and specific and hourly consumptions than that fed with fossil diesel.

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Performance of a diesel engine fueled with a preheated blend of soybean oil and petrodiesel

Engenharia Agrícola ◽

10.1590/s0100-69162012000600007 ◽

2012 ◽

Vol 32 (6) ◽

pp. 1058-1067 ◽

Cited By ~ 5

Author(s):

Hevandro C. Delalibera ◽

Nilson Campolina ◽

Pedro H. Weirich Neto ◽

Ricardo Ralisch

Keyword(s):

Particulate Matter ◽

Diesel Engine ◽

Soybean Oil ◽

Vegetable Oils ◽

Diesel Oil ◽

Injection System ◽

Diesel Cycle ◽

Useful Life ◽

Electronic Injection

Brazil is doing a major effort to find alternatives to diesel oil as combustible. Some study lines are oriented to the development of vegetable oils used as fuel, as a source of getting cheaper and have higher energy density than the converted vegetable oils, and less risk of environmental contamination. The aim of this study was to evaluate the performance, the useful life of the lubricant and some components of a Diesel Cycle engine, with an electronic injection system, in a long-term test operating with a preheated blend (65°C) of 50% (v v-1) of soybean oil in petrodiesel. There was a reduction of the useful life of the injectors which presented failure because of high wear with 264 hours of operation and showed an increase in emissions of particulate matter (opacity) which may be assigned to the failures occurred in the injection system. An increase in the useful life of the lubricant, when compared with the literature was also observed. The electronic injection system may favor the burning of the tested fuel. The test was interrupted with 264 hours because of failures in the injection system.

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The Performance of Diesel Engine Fueled Diesel Oil in Comparison with Heated Pure Vegetable Oils Available in Vietnam

Journal of Sustainable Development ◽

10.5539/jsd.v10n2p93 ◽

2017 ◽

Vol 10 (2) ◽

pp. 93 ◽

Cited By ~ 6

Author(s):

Anh Tuan Hoang

Keyword(s):

Diesel Engine ◽

Vegetable Oils ◽

Sunflower Oil ◽

Alternative Fuels ◽

Internal Combustion Engines ◽

Fossil Fuels ◽

Coconut Oil ◽

Diesel Oil ◽

Petroleum Resources ◽

Ready Availability

Pure vegetable oils have the greatest promise for alternative fuels for internal combustion engines beside the depletion of conventional petroleum resources. Among various possible options, pure vegetable oils present promising of greener air substitutes for fossil fuels. Pure vegetable oils, due to the agricultural origin, liquidity, ready availability, renewability, biodegradability are able to reduce the CO2 emissions in the atmosphere. Also, in Vietnam, pure vegetable oils such as soybean oil (SoO100), coconut oil (CO100) and sunflower oil (SuO100) are available. The paper presents the results of using heated pure vegetable oils for diesel engine D243 with power of 80 hp (58.88) kW. The results of determining the power (Ne), speciﬁc fuel consumption (SFC) and efﬁciency (n) are used to evaluate the performance of engine. The results show that, the engine power (Ne) is 10%-15% lower, the SFC of engine D243 using pure vegetable oils is 3%-5% higher and the η is 2.5%-6.2% lower compared to diesel oil (DO). Among the pure vegetable oils, the best performance results for D243 diesel engine are obtained from heated pure sunﬂower oil up to 135oC.

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Physical characteristics of passionfruit cv. BRS gigante amarelo produced by flowers with three and four carpels

Bioscience Journal ◽

10.14393/bj-v36n5a2020-41776 ◽

2020 ◽

Vol 36 (5) ◽

Author(s):

Danilo Akio de Sousa Esashika ◽

Fábio Gelape Faleiro ◽

Nilton Tadeu Vilela Junqueira

Keyword(s):

Spherical Shape ◽

Physical Characteristics ◽

Transverse Diameter ◽

Reproductive Structure ◽

Tukey Test ◽

Randomized Design ◽

Completely Randomized Design ◽

Pericarp Thickness ◽

Fruit Mass ◽

Longitudinal Diameter

The carpel is the female reproductive structure composed of a set of stigma, style and ovary. Normally passionflower have three carpels, however, some cultivars have this structure in greater quantity. The objective of this work was to identify relationships between the number of carpels and the physical characteristics of BRS Gigante Amarelo fruits. The flowers with three and four carpels were marked, pollinated and the fruits harvested from these flowers analyzed for transverse diameter, longitudinal diameter, pericarp thickness, fruit mass, pulp mass, pulp ratio, number and weight of seeds. A completely randomized design with 10 replicates per treatment was used and each plot had the average of 3 fruits. The data were submitted to variance analysis and the means were compared by the Tukey test at 5% of probability. The fruits generated by flowers with 4 carpels were 18,30% heavier, their pulp were on average 20.75% heavier, presented transverse diameter 7,53% superior to that of fruits generated by flowers with 3 carpels. Similar increments were identified regarding the number of seeds and the weight of seeds per fruit that increased 18,85% and 52.42%, respectively. This result indicates that cv. BRS Yellow Giant with 4 carpels generates heavier fruits, pulp and seeds with a more spherical shape.

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Utilização de diferentes substratos na propagação de Pyrostegia venusta através de estacas

Revista Verde de Agroecologia e Desenvolvimento Sustentável ◽

10.18378/rvads.v10i4.3375 ◽

2015 ◽

Vol 10 (4) ◽

pp. 38

Author(s):

J. G. Crispim ◽

M. M. Rêgo ◽

E. R. Rêgo ◽

Â. M. S. Pessoa ◽

P. A. Barroso

Keyword(s):

Analysis Of Variance ◽

Leaf Length ◽

Cattle Manure ◽

Main Root ◽

Plastic Tube ◽

Tukey Test ◽

Randomized Design ◽

Number Of Leaves ◽

Completely Randomized Design ◽

Pyrostegia Venusta

Este trabalho teve por objetivo avaliar o desenvolvimento de clones de Pyrostegia venusta em diferentes tipos de substratos. O experimento foi conduzido em delineamento inteiramente casualizado, com 06 tratamentos e 10 repetições, cada repetição foi constituída por um tubete de polietileno com capacidade de 103cm3. Os tratamentos testados foram: (T1) 100% de areia lavada; (T2) 50% areia lavada + 50% substrato comercial Plantmax®; (T3) 100% de substrato comercial Plantmax®; (T4) 50% areia lavada + 50% de esterco bovino; (T5) 1/3 areia lavada + 1/3 esterco bovino +1/3 de Plantmax® e (T6) 50% esterco bovino + 50% de Areia lavada. Após 30 dias foram avaliados o número de estacas sobreviventes, comprimento do broto (cm), número de folhas, comprimento da folha (cm), número de raízes e comprimento da raiz principal (cm). Os dados foram submetidos a análise de variância e as médias comparadas pelo teste de Tukey a 5% de probabilidade. Por meio da análise de variância (p<0,01), detectou-se significância estatística, para as variáveis, sobrevivência das estacas e número de brotos por estaca de P. venusta, quando cultivadas em substrato composto por 50% areia lavada + 50% substrato comercial Plantmax®. Essa mistura apresenta a vantagem de ser mais econômica quando comparado ao substrato comercial Plantmax®, sendo portanto, recomendada na produção de mudas de cipó-de-São João.Utilization of different substrates in the propagation of Pyrostegia venusta by cuttingsAbstract: The experiment was carried out in a completely randomized design with 06 treatments and 10 replicates, each replicate consisted of polyethylene plastic tube the size of 103cm3. The treatments were: (T1) 100% washed sand; (T2) 50% washed sand + 50% commercial substrate Plantmax®; (T3) 100% substrate commercial Plantmax®; (T4) 50 % washed sand + 50% cattle manure; (T5) 1/3 washed sand + 1/3 manure +1/3 Plantmax® and Plantmax (T6) 50 % cattle manure + 50% washed sand. After 30 days, were evaluated number of cutting survival, bud length in cm, number of leaves, leaf length in cm, number of roots and length of the main root. Data were submitted to analysis of variance and means were compared by Tukey test at 5% probability. By analysis of variance (p< 0.01), there was significant differences for the variables, czutting survival and number of shoots per cutting when cultured on substrate composed of 50% washed sand + 50% commercial substrate Plantmax®. Furthermore, this mixture has the advantage to be cheaper as compared to substrate Plantmax®, so we recommend the seedlings of Saint John’s vine.

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AGRONOMIC EVALUATION OF BANANA PLANTS IN THREE PRODUCTION CYCLES IN SOUTHWESTERN STATE OF BAHIA

Revista Brasileira de Fruticultura ◽

10.1590/0100-29452017990 ◽

2017 ◽

Vol 39 (1) ◽

Cited By ~ 3

Author(s):

ALESSANDRO DE MAGALHÃES ARANTES ◽

SÉRGIO LUIZ RODRIGUES DONATO ◽

TÂNIA SANTOS SILVA ◽

VAGNER ALVES RODRIGUES FILHO ◽

EDSON PERITO AMORIM

Keyword(s):

Agronomic Traits ◽

Area Index ◽

Tukey Test ◽

Federal Institute ◽

Randomized Design ◽

Agronomic Evaluation ◽

Production Cycles ◽

Number Of Leaves ◽

Southwestern State ◽

Completely Randomized Design

ABSTRACT This assay was conducted in the experimental area of the Federal Institute of Bahia, Campus Guanambi, BA, and aimed to evaluate agronomic traits of Prata, Cavendish, Gros Michel and Maçã banana cultivars three production cycles. The 72 treatments, 24 cultivars and three production cycles were arranged in a split plot scheme in time, in a completely randomized design with five replications and four plants per plot. Plots were arranged in 24 cultivars, Prata-Anã, Maravilha, FHIA-18, FHIA-18 BRS, BRS Platina, JV42-135, Pacovan, Japira, PV79-34, Pacovan-Ken, Preciosa, Guarantida, Maçã, Caipira, BRS Tropical, BRS Princesa, YB42-03, YB42-07, YB42-47, Grande-Naine, Calypso, Buccaneiro, FHIA-23 and FHIA-17; and subplots consisted of three production cycles. Data obtained were submitted to analysis of variance. The average of the cultivars were grouped by Scott-Knott criterion (p<0.05) and production cycles compared by Tukey test (p<0.05). ‘JV42-235’, ‘Japira’ and ‘Pacovan-Ken’ cultivars had larger size and ‘Grande Naine’ had smaller size. ‘Prata-Anã’ cultivar had higher number of leaves at harvest, with leaf area index similar to the others. ‘BRS Platina’ cultivar is earlier at flowering and harvest. ‘Maravilha’, ‘BRS Platina’, ‘FHIA-23’, ‘BRS Tropical and BRS Princesa’ cultivars presented greater potential for use by farmers.

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CARACTERÍSTICAS FÍSICAS DE CÁPSULAS POROSAS PARA USO NA IRRIGAÇÃO LOCALIZADA

Irriga ◽

10.15809/irriga.2019v24n4p861-873 ◽

2019 ◽

Vol 24 (4) ◽

pp. 861-873

Author(s):

Pedro Idelano de Alencar Felício ◽

Renato Silvio da Frota Ribeiro ◽

Alexsandro Oliveira Silva ◽

José Carlos de Araújo ◽

Raimundo Nonato Távora Costa

Keyword(s):

Irrigation System ◽

Soil Management ◽

Hydraulic Conductance ◽

Physical Characteristics ◽

Small Areas ◽

Tukey Test ◽

Randomized Design ◽

Completely Randomized Design ◽

E Mail ◽

Climate Management

CARACTERÍSTICAS FÍSICAS DE CÁPSULAS POROSAS PARA USO NA IRRIGAÇÃO LOCALIZADA PEDRO IDELANO DE ALENCAR FELÍCIO1; RENATO SÍLVIO DA FROTA RIBEIRO1; ALEXSANDRO OLIVEIRA DA SILVA1; JOSÉ CARLOS DE ARAÚJO1 E RAIMUNDO NONATO TÁVORA COSTA1 1 Departamento de Engenharia Agrícola, Universidade Federal do Ceará, Av. Mr. Hull, s/n, Pici, CEP:60356-001, Fortaleza, Ceará, Brasil. E-mail: [email protected]; [email protected]; [email protected]; [email protected]; [email protected] 1 RESUMO Há diversos usos para as cápsulas porosas na agricultura, contudo, estas devem ser caracterizadas por parâmetros de avaliação como pressão de borbulhamento e condutância hidráulica. O objetivo da pesquisa foi aferir as características físicas de cápsulas porosas para uso na irrigação localizada. Para o sistema de irrigação proposto, utilizaram-se dez cápsulas porosas na execução do ensaio experimental que consistiu em um delineamento inteiramente casualizado com três tratamentos, constando de diferentes manejos de irrigação (manejo via clima, via solo e via cápsula porosa) com dez repetições, totalizando 30 unidades experimentais, tendo sido avaliados parâmetros de produção e crescimento da cultura do rabanete. A pressão de borbulhamento média observada foi de 2,34 atm, enquanto a condutância hidráulica apresentou valor médio de 9,27 x 10-6 cm² s-1. Para a cultura em estudo não houve diferenças entre os tratamentos estudados, sendo que a massa fresca da raiz apresentou valores de 7,4 g planta-1 para o manejo via clima e 4,7 g planta-1 para o manejo via cápsula porosa, não sendo estatisticamente diferentes pelo teste de Tukey (p<0,05). O uso de sistema de irrigação por cápsulas porosas apresenta-se como uma alternativa viável para o cultivo de hortaliças em pequenas áreas. Palavras-chave: Pressão de borbulhamento, condutância hidráulica, emissor. FELÍCIO; P. I. A.; RIBEIRO, R. S. F.; SILVA. A. O.; ARAÚJO, J. C.; COSTA, R. N. T. PHYSICAL CHARACTERISTICS OF POROUS CAPSULES FOR USE IN IRRIGATION SYSTEM LOCATED 2 ABSTRACT There are different uses for porous capsules in agriculture, however they must be characterized by assessment parameters like bubbling pressure and hydraulic conductance. The objective of this work was to measure physical characteristics of porous capsules for localized irrigation use. For the proposed irrigation system, porous capsules were used in the execution of experimental trial, consisting of a completely randomized design with three treatments, different irrigation managements (climate management, soil management and porous capsule management) with 10 replications, totaling 30 experimental units, the culture chosen was radish, and parameters of production and growth were assessed. The average bubbling pressure found was 2.34 atm, while conductance presented values of 9.27 x 10-6 cm² s-1. For the crop study, differences between the treatments studied by the Tukey test (p <0.05) were not found; fresh root mass presented values of 7.4 g plant-1 for the climate management and 4.7 g plant-1 for management of porous capsule. The use of porous capsule irrigation systems is a viable alternative for growing vegetables in small areas. Keywords: Bubbling pressure, hydraulic conductance, emitter.

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IDENTIFIKASI DAN UJI PENGENDALIAN HAMA DAUN JABON SECARA INVITRO

Jurnal Sains Natural ◽

10.31938/jsn.v4i1.75 ◽

2017 ◽

Vol 4 (1) ◽

pp. 51

Author(s):

Ujang W. Darmawan ◽

Agus Ismanto

Keyword(s):

Bacillus Thuringiensis ◽

Pest Species ◽

Control Test ◽

Control Effort ◽

Tukey Test ◽

Randomized Design ◽

Completely Randomized Design ◽

Biological Pesticide ◽

And Control ◽

Organic Pesticides

Identification and Control Test of Jabon Leaf Pest by Invitro One of problem in jabon (Neolamarckia cadamba [Roxb.] F. Bosser) plantation is defoliator. Identification and control effort are needed to counter this problem. This research was intended to identify pest species attacking plant and do efficacy test of several chemical and biological pesticides against the defoliator. The statistical method of efficacy was Completely Randomized Design (CRD). Two pesticides prophenophos (0,1%) and dimethoate (0,1%) as chemical based organic pesticides and Bacillus thuringiensis(0,5 g/l) as biological pesticide were tested against the defoliator. Data was analyzed using Anova and Tukey test at 95% confidence level. The result showed that pest was identified as Dysarthria quadricaudata. Chemical and biological pesticides were effective to control the pest.Keywords: Neolamarckia cadamba, Dysarthria quadricaudata, prophenophos, dimethoate, pest. ABSTRAK Salah satu persoalan pada hutan tanaman jabon (Neolamarckia cadamba [Roxb.] F. Bosser) adalah serangan hama perusak daun. Pengendalian diperlukan untuk mengatasi persoalan ini. Penelitian bertujuan untuk mengidentifikasi spesies hama dan melakukan efikasi beberapa jenis pestisida kimia dan organik terhadap hama ulat daun jabon (N. cadamba). Metode yang digunakan adalah rancangan acak lengkap. Dua jenis pestisida kimia berbahan profenofos (0,1%), dan dimetoat (0,1%) serta pestisida organik berbahan dasar Bacillus thuringiensis (0,5 gr/lt) diuji terhadap hama ulat daun. Data dianalisis menggunakan Anova dan uji Tukey (CI = 95%). Hasil penelitian menunjukkan bahwa spesies hama yang menyerang tanaman jabon adalah Dysarthria quadricaudata. Jenis pestisida tersebut efektif mengendalikan hama ulat daun jabon.Kata kunci: Neolamarckia cadamba, Dysarthria quadricaudata, profenofos. dimetoat, hama

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Physiological potential of Dyckia spp. bromeliad seeds under different temperatures

Semina Ciências Agrárias ◽

10.5433/1679-0359.2021v42n5p2639 ◽

2021 ◽

Vol 42 (5) ◽

pp. 2639-2650

Author(s):

Verônica Pellizzaro Moresco ◽

◽

Mônica Satie Omura ◽

Jean Carlo Baudraz de Paula ◽

Felipe Favoretto Furlan ◽

...

Keyword(s):

Growth And Development ◽

Ornamental Plants ◽

Dry Weight ◽

Natural Environments ◽

The Third ◽

Tukey Test ◽

Seed Physiology ◽

Randomized Design ◽

Different Temperatures ◽

Completely Randomized Design

Bromeliads have been gaining ground in the economic scenario due mainly to their use as ornamental plants. Bromeliads of the genus Dyckia exhibit different morphologies, and therefore, have relevance in this market. However, some species are threatened due to the extraction of plants from their natural environments. Many of these species are endemic and native to Brazil and there are few studies on their seed physiology; hence, expansion of research into this topic is essential. An alternative for the preservation of such plants is the production of seedlings using seeds. To this end, the objective of this work was to evaluate the physiological potential of seeds of Dyckia brevifolia, Dyckia beateae, and Dyckia excelsa at different temperatures, and determine the number of days to carry out the tests. A completely randomized design was adopted, with three species of Dyckia, analyzed separately, and four temperatures (20, 25, 30, and 35 °C). The following were evaluated: first germination count, germination, germination speed index, length of seedling, and seedling dry weight. The data were analyzed using the Sisvar software for normality and homogeneity, and when the assumptions were met, they were subjected to analysis of variance using the F test (p < 0.05) and the means were compared using the Tukey test at 5% probability. Seeds of D. excelsa emit the radicle more quickly at 20 and 35 °C; however, temperatures of 25 and 30 °C provide better conditions for seedling growth and development. The greatest vigor of D. brevifolia seeds is observed at temperatures of 30 and 35 °C. Seeds of D. beateae emit the radicle more quickly at 20 °C, and the largest seedlings are observed at 35 °C. The first germination count of D. brevifolia, D. beateae, and D. excelsa should be evaluated on the third day after sowing. The germination evaluations for D. excelsa and D. beateae should be carried out on the ninth day after sowing, and those for D. brevifolia on the sixth day after sowing.

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Quality of brown-shelled eggs marketed in different commercial establishments

Acta Scientiarum Animal Sciences ◽

10.4025/actascianimsci.v42i1.46552 ◽

2020 ◽

Vol 42 ◽

pp. e46552

Author(s):

Thiago Souza ◽

Claudia da Costa Lopes ◽

Rita Brito Vieira ◽

Gabriela Coelho Santos ◽

Rodrigo Ferreira Silva ◽

...

Keyword(s):

Internal Quality ◽

Grocery Stores ◽

External Quality ◽

Shell Eggs ◽

Tukey Test ◽

Randomized Design ◽

Completely Randomized Design ◽

The City ◽

Haugh Unit

This study aimed at evaluating the internal and external quality of brown-shelled eggs commercialized in the municipality of Parintins-AM. A total of 540 eggs were evaluated and distributed in a completely randomized design, which consisted of three treatments and six replications of 30 eggs each. The treatments were: eggs sold in supermarkets; in grocery stores; and eggs sold directly at the farm. The age of the eggs from supermarkets and grocery stores was unknown, however, the eggs bought at the farm were marketed as being from the day of laying. The collected data were submitted to analysis of variance and Tukey test at 5% probability. There were no differences (p > 0.05) of treatments in the percentage of dirty eggs, however, grocery and farm eggs presented higher (p < 0.05) crack percentage. The eggs at the farm presented higher incidence (p < 0.05) of internal stains of blood. The weight of the egg and albumen presented no differences (p > 0.05). However, the albumen percentage of the farm eggs was higher than the other treatments (p < 0.05). The percentages for yolk and eggshell weight from the farm eggs were lower than the supermarket and grocery eggs (p < 0.05). For the variables albumen height, Haugh unit, albumen index, yolk and albumen pH, the best results were observed for the farm eggs, however, regarding these variables, eggs sold in supermarkets and grocery stores did not differ from each other. The brown shell eggs sold in the city of Parintins/AM have high rates of external defects, and the eggs bought directly from the farm presented better internal quality, when compared to eggs sold in different establishments.

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COMBUSTION ANALYSIS OF D-LIMONENE AS AN ADDITIVE TO DIESEL-BIODIESEL BLENDS IN COMPRESSION IGNITION ENGINES

Revista de Engenharia Térmica ◽

10.5380/reterm.v18i2.70778 ◽

2019 ◽

Vol 18 (2) ◽

pp. 03

Author(s):

L. F. Micheli ◽

L. E. R. Pereira ◽

D. L. Módolo ◽

W. K. D. C. Saruhashi

Keyword(s):

Diesel Engine ◽

Vegetable Oils ◽

Cetane Number ◽

Combustion Process ◽

Orange Peel ◽

Diesel Oil ◽

Biodiesel Blends ◽

Positive Effects ◽

Lubricant Oil ◽

Compression Ignition Engines

Vegetable oils, when subjected to transesterification process generate “vegetable oils esters”, with similar properties as density, cetane number, heating values, air-fuel ratio. However, problems resulting from the higher viscosity, leads to a worst spraying and combustion, formation of undesirable deposits on engine parts and contamination of the lubricant oil. Due to these problems, it is interesting to study an additive, also derived from biomass, to improve the characteristics of biodiesel for a suitable use in diesel engines. This paper proposes an additive (d-limonene obtained from orange peel) and preliminary results obtained from the tests in a stationary diesel engine fueled with mixtures of diesel/biodiesel/d-limonene, in different concentration to compare with a regular diesel-biodiesel blend and analyzes the influence of the additive on the combustion process. The diesel oil used was purchased from BR supply network (containing 7% biodiesel in its composition) and two blends with different concentrations of the additive (1% and 3% of d-limonene) were prepared and tested. Diesel without additive was also tested. The effects of the DS10 addititivation with d-limonene in the combustion process of a diesel engine have been analyzed, the results obtained were satisfactory showing the positive effects in the combustion process with the addition of d-limonene in diesel-biodiesel blends, decreasing the ignition delay around 2 degrees and showing an improvement in the cetane number of the fuel.

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