Engine oil degradation analysis of construction equipment in Latin America

2019 ◽  
Vol 25 (2) ◽  
pp. 294-313 ◽  
Author(s):  
Kurt Azevedo ◽  
Daniel B. Olsen
Keyword(s):  
Latin America ◽  
Operating Conditions ◽  
Mitigation Strategies ◽  
Engine Oil ◽  
Oil Degradation ◽  
Laboratory Equipment ◽  
Content Type ◽  
Global Representation ◽  
Engine Maintenance ◽  
Tier 3

Purpose The purpose of this paper is to determine and describe the effect of oil degradation on the engine of a 20-ton class excavator operating in Latin America. Design/methodology/approach The research parameters include: a specific engine class and equipment, the John Deere PowerTech Plus 6068 Tier 3 diesel engine that powers the 20-ton class excavator; identical OSA3 oil analysis laboratory equipment in 11 target countries in Latin America was employed to analyze oil samples; and the same sampling scope and method were followed for each oil sample. Findings The research results indicated that at 500 h of use, 73.4 percent of the oil sample results indicated that soot accumulation was a significant problem. When associating the engine oil contamination with the environment risk drivers: altitude and diesel quality have the greatest impact on iron readings; bio-diesel impacts copper; and precipitation and poor diesel quality are associated with silicon levels. Practical implications Due to diverse machine operating conditions, research offers an accurate global representation. Because there is an exponential count of particles as oil use approaches 250 h, the interval of engine maintenance (oil change) for machinery operating under similar conditions should not exceed 250 h of use. Originality/value The main contribution of this paper will help machinery final users and manufacturers to implement mitigation strategies to improve engine durability in countries with similar operating conditions.

Construction equipment engine performance degradation due to environmental and operation factors in Latin America

2019 ◽  
Vol 25 (3) ◽  
pp. 499-524
Author(s):  
Kurt Azevedo ◽  
Daniel B. Olsen
Keyword(s):  
Operating Conditions ◽  
Mitigation Strategies ◽  
Sensor Data ◽  
Engine Oil ◽  
Construction Equipment ◽  
Base Number ◽  
Oil Viscosity ◽  
Mining Operations ◽  
Content Type ◽  
Engine Wear

Purpose The purpose of this paper is to determine whether the altitude at which construction equipment operates affects or contributes to increased engine wear. Design/methodology/approach The study includes the evaluation of two John Deere PowerTech Plus 6,068 Tier 3 diesel engines, the utilization of OSA3 oil analysis laboratory equipment to analyze oil samples, the employment of standard sampling scope and methods, and the analysis of key Engine Control Unit (ECU) data points (machine utilization, Diagnostic Trouble Codes (DTCs) and engine sensor data). Findings At 250 h of engine oil use, the engine operating at 3,657 meters above sea level (MASL) had considerably more wear than the engine operating at 416 MASL. The leading and earliest indicator of engine wear was a high level of iron particles in the engine oil, reaching abnormal levels at 218 h. The following engine oil contaminants were more prevalent in the engine operating at the higher altitude: potassium, glycol, water and soot. Furthermore, the engine operating at higher altitude also presented abnormal and critical levels of oil viscosity, Total Base Number and oxidation. When comparing the oil sample analysis with the engine ECU data, it was determined that engine idling is a contributor for soot accumulation in the engine operating at the higher altitude. The most prevalent DTCs were water in fuel, extreme low coolant levels and extreme high exhaust manifold temperature. The ECU operating data demonstrated that the higher altitude environment caused the engine to miss-fire and rail pressure was irregular. Practical implications Many of the mining operations and construction projects are accomplished at mid to high altitudes. This research provides a comparison of how construction equipment engines are affected by this type of environment (i.e. higher altitudes, cooler temperatures and lower atmospheric pressure). Consequently, service engineers can implement maintenance strategies to minimize internal engine wear for equipment operating at higher altitudes. Originality/value The main contribution of this paper will help construction equipment end-users, maintenance engineers and manufacturers to implement mitigation strategies to improve engine durability for countries with operating conditions similar to those described in this research.

Lubricant Degradation Studies Using a Single Cylinder Research Engine

2005 ◽  
Author(s):  
P. M. Lee ◽  
M. Priest ◽  
M. S. Stark ◽  
J. J. Wilkinson ◽  
J. R. Lindsay Smith ◽  
...  
Keyword(s):  
Fuel Consumption ◽  
Tribological Performance ◽  
Operating Conditions ◽  
Engine Oil ◽  
Oil Degradation ◽  
Lubricant Degradation ◽  
Reduce Fuel Consumption ◽  
Single Cylinder ◽  
Degradation Studies ◽  
Piston Assembly

With increasing pressure on engine oil manufacturers to extend oil drain intervals and reduce fuel consumption, whilst changing the composition of fully formulated oils to meet new CEC, ILSAC and OEM specifications, there is ever increasing need to understand the effect of oil degradation on the operating conditions and tribological performance of engines. This poster presents mechanical changes made to a single cylinder research engine to enable the study of lubricant degradation, its transport and how this links to piston assembly tribology. A summary of the research undertaken using these changes and a sample of results obtained to date are also presented.

Comparing oil condition in diesel and gasoline engines

2020 ◽  
Vol 72 (8) ◽  
pp. 1033-1039
Author(s):  
Adam Agocs ◽  
Serhiy Budnyk ◽  
Marcella Frauscher ◽  
Bettina Ronai ◽  
Charlotte Besser ◽  
...  
Keyword(s):  
Design Methodology ◽  
Engine Oil ◽  
Base Number ◽  
Oil Degradation ◽  
Special Issue ◽  
Maintenance Strategies ◽  
Content Type ◽  
Gasoline Engines ◽  
Total Base ◽  
New Generation

Purpose This paper aims to compare the conditions of in-service oils from diesel and gasoline engines, with focus on nitration. Design/methodology/approach Oil conditions of seven engine oil samples from five diesel-fueled vehicles and nine oil samples from eight gasoline-fueled vehicles with total mileage ranging from 13,600 to 30,000 km were determined via Fourier-transform infrared spectroscopy as well as neutralization number (NN) and total base number titration. Findings Chemical deterioration was characterized by significant differences in oxidation, nitration, NN increase and residual aminic antioxidant contents. Social implications Submitted in connection with the Special Issue, “Young Tribologists – Insights into the work of the new generation”. Originality/value Uncovering differences in the oil degradation of oils from gasoline and diesel engines enables improved condition-based maintenance strategies and the prediction of oil condition dependent tribological performance.

scholarly journals Design of Laboratory Test Equipment for Automotive Oil Filters to Evaluate the Technical Life of Engine Oil

2021 ◽  
Vol 11 (2) ◽  
pp. 483
Author(s):  
Hujo Ľubomír ◽  
Jablonický Juraj ◽  
Markovič Jaromír ◽  
Tulík Juraj ◽  
Simikić Mirko ◽  
...  
Keyword(s):  
Laboratory Test ◽  
Operating Conditions ◽  
Test Equipment ◽  
Engine Oil ◽  
Laboratory Measurements ◽  
Laboratory Equipment ◽  
Engine Oils ◽  
Simultaneous Testing ◽  
Motor Oils ◽  
Filtration Capacity

The main aim of the article is to present the design of laboratory test equipment, which is appropriate for monitoring the efficiency of oil filters and the system for evaluating the technical life of engine oils in terms of possible extension of service intervals. The functionality of the designed laboratory test equipment for the filtration of motor oils was verified by a practical experiment with a verification measurement and assessment of the suitability of the hydraulic circuit elements and the designed sensing equipment. The laboratory equipment enables the testing of oil filters with different filtration capacity during simultaneous testing in two separate hydraulic circuits with differently contaminated engine oil, while it enables laboratory measurements to be performed while simulating operating conditions.

The Tribological and Chemical Analysis of Top Ring Zone Samples of Fully Formulated Oil Taken From a Four Stroke Gasoline Engine

2005 ◽  
Author(s):  
Peter M. Lee ◽  
M. Priest ◽  
M. S. Stark ◽  
J. J. Wilkinson ◽  
J. R. Lindsay-Smith ◽  
...  
Keyword(s):  
Steady State ◽  
Chemical Analysis ◽  
Piston Ring ◽  
Gasoline Engine ◽  
Tribological Performance ◽  
Operating Conditions ◽  
Engine Oil ◽  
Oil Degradation ◽  
Reduce Fuel Consumption ◽  
Work Samples

With increasing pressure on engine oil manufacturers to extend oil drain intervals and reduce fuel consumption, whilst changing the composition of fully formulated oils to meet the new CEC, ILSAC and OEM specifications, there is an ever increasing need to understand the effect of oil degradation on the operating conditions and tribological performance of engines [1]. This work samples oil from the rear of the top piston ring of an engine during the first 15 minutes from cold start and operating at steady state under three different loads. These samples, used 40 hour sump oil and fresh oil have been subjected to tribological tests and chemical analysis.

How to do business in Brazil

2017 ◽  
Vol 33 (8) ◽  
pp. 36-38
Keyword(s):  
Developing Countries ◽  
Latin America ◽  
Design Methodology ◽  
Reading Time ◽  
Content Type ◽  
Business People ◽  
The World ◽  
Pertinent Information ◽  
Specific Culture ◽  
Practical Implications

Purpose This paper aims to review the latest management developments across the globe and pinpoint practical implications from cutting-edge research and case studies. Design/methodology/approach This briefing is prepared by an independent writer who adds their own impartial comments and places the articles in context. Findings It is said that Latin America is one of the hardest places in which to do business, and within Latin America as well as considering the differing challenges that Argentina or Columbia may present, Brazil is perhaps the most difficult place to go to in order to develop trade and commercial agreements. In addition to the different language as compared to the rest of the region, there is a very specific culture and life view that will be wholly alien to many business people, whether they are from developed or developing countries around the world. Practical implications The paper provides strategic insights and practical thinking that have influenced some of the world’s leading organizations. Originality/value The briefing saves busy executives and researchers hours of reading time by selecting only the very best, most pertinent information and presenting it in a condensed and easy-to-digest format.

Management and sustainability dilemmas in Latin America: introduction

2021 ◽  
Vol 34 (1) ◽  
pp. 1-17
Author(s):  
Olivia Hernandez-Pozas ◽  
Maria Jose Murcia ◽  
Enrique Ogliastri ◽  
Miguel R. Olivas-Lujan
Keyword(s):  
Latin America ◽  
Latin American ◽  
Design Methodology ◽  
Future Research ◽  
Content Type ◽  
Literature Reviews ◽  
Editorial Work ◽  
Different Dimensions ◽  
Sustainability Challenges ◽  
Specific Contribution

PurposeThis article introduces readers to the Special Issue (SI, 34-1) of ARLA, edited (not exclusively) with the best papers of the Academy of Management's Specialized Conference, scheduled for April 2020 in Mexico City. The COVID-19 pandemic forced its cancellation, but the expert peer review and editorial work continued, to contribute to the emerging literature on Latin American Management and Sustainability.Design/methodology/approachGuest editors contributed their expertise based on required editorial processes and focused literature reviews on Management and Sustainability.FindingsThere are large management and sustainability challenges to Latin American practitioners and researchers, resulting in an increasingly urgent need to systematically document similarities and differences in the fields of Management and Sustainability. It is so because the region has been affected as few others before, during and after the pandemic. Thus, this issue summarizes the literature, presents eight new studies and offers suggestions for future research.Research limitations/implicationsManagement and sustainability in Latin America are wide subjects, with different dimensions and issues. This is a specific contribution that leaves much ground to be covered in the different subfields of the area, in research methodologies and conclusions.Originality/valueAn agenda for advancing the field of management and sustainability in Latin America, highlighted by the COVID-19 disruption; additionally, eight of the most advanced research in the field are presented, chosen from two tracks of a large number of contributions to a recent specialized conference organized by the Academy of Management.

Pandemic may drive new wealth taxes in Latin America

2021 ◽  
Keyword(s):  
Latin America ◽  
Social Welfare ◽  
The Political ◽  
Content Type ◽  
Latin Americans ◽  
Tax Revenues ◽  
Wealth Tax ◽  
The Government ◽  
Political Spectrum ◽  
Tax Cuts

Significance The region’s current tax and spending policies redistribute very little. The COVID-19 pandemic brought a deep and persistent recession, despite new spending, tax cuts and monetary easing aimed at limiting the damage. In December, the government of Argentina, which was particularly hard hit, passed a temporary (and additional) net wealth tax on the very richest households. Impacts OECD-led transparency efforts offer the long-sought possibility of taxing the foreign assets of wealthy Latin Americans. The pandemic will increase both existing inequalities and the need for tax revenues to finance social welfare and stimulus spending. Efforts to strengthen tax collection more broadly will likely be undertaken by governments across the political spectrum.

Constitutional reform calls mount across Latin America

2021 ◽  
Keyword(s):  
Latin America ◽  
Indigenous Communities ◽  
Constitutional Reform ◽  
Constitutional Change ◽  
Content Type ◽  
Constitutional Reforms ◽  
The Status

Significance The debate over constitutional reform will be enlivened by the upcoming election of a constituent convention in Chile on the same day as the Peruvian elections. Impacts Constitutional change may become a banner for the left elsewhere in Latin America. Future constitutional reforms may reconsider the status of indigenous communities in the Amazon. Workers’ rights, include labour stability, may be strengthened.

Does tax policy fit in the portfolio of COVID-19 responses?

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Kerrie Sadiq ◽  
Richard Krever
Keyword(s):  
Tax Policy ◽  
Value Added ◽  
Mitigation Strategies ◽  
Income Support ◽  
Policy Reforms ◽  
Content Type ◽  
Goods And Services ◽  
Policy Responses ◽  
Tax Regimes ◽  
The Uk

Purpose Tax policymakers are currently navigating a path through a delicate dialectic of macro- and micro-level policy responses to the economic dislocation of the COVID-19 pandemic. The purpose of this paper is to examine initial tax measures that are aimed at helping taxpayers needing liquidity, solvency and income support. Design/methodology/approach This study undertakes a review of key tax policy responses of six jurisdictions across the globe that have similar tax regimes and virus mitigation strategies (albeit with different outcomes). Key initiatives implemented from February to April 2020 by Australia, Canada, New Zealand, Singapore, South Africa and the UK are examined. Findings This study indicates that tax concessions are a crude and mostly ineffective way of assisting individuals and enterprises in difficulty. In the longer term, if the crisis prompts desirable reforms such as extending the recognition of tax losses, the income tax system will emerge fairer and more efficient. Practical implications An investigation of the short-term reforms announced relating to asset write-offs, tax deferral, tax losses and goods and services tax/value-added tax rates in light of the liquidity, income support and stimulus objectives shows that in some cases the policies may have been misguided. The findings can be used by policymakers as the basis for designing better targeted alternative non-tax responses. Originality/value Jurisdictional responses to tax policy reforms during a modern period of significant economic dislocation have yet to be documented in the literature. Specifically, this paper highlights the limitations of tax policy initiatives as a response to financial hardship.

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