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Über dieses Buch

This book discusses vegetable oil based biolubricants and their applications in the power distribution industry. Vegetable oil based lubricants offer significant advantages over petroleum-based lubricants, including biodegradability, cost-effectiveness, renewability, and lower environmental effects. This book provides a detailed literature survey of modified vegetable oils. It discusses the physical and chemical properties of vegetable oil, and their effects on its applications in tribology. The book discusses additives and enhancements to make vegetable oils suitable for use as lubricating oils and transformer oils in power plants and power distribution grids. The contents of the book will be useful to researchers and professionals as well as policy makers and standards agencies.

Inhaltsverzeichnis

Frontmatter

Introduction

Frontmatter

Chapter 1. Green Fluids from Vegetable Oil: Power Plant

Abstract
Biodegradability has become one of the most important design parameters both in the selection of base oil and in the overall formulation of the finished fluids for insulating liquid and lubricants at electrical power generation in the power plants. There is a continuing trend toward the use of “environmentally friendly” or more readily biodegradable fluids. Readily biodegradable fluids are one that breaks down in the environment at a specified time when evaluated by standard biodegradability tests; the fluids convert to lower molecular weight components that have essentially no environmental impact. Due to the depleting of petroleum resources and environmental concern, the demand for vegetable oil-based natural esters has increased as well. In this regard, the statistical development, degradation capability of vegetable oil (triglycerides) as lubricants and liquid insulators, and the properties of natural ester-based vegetable oil in the power plant have been investigated in this chapter.
Dhorali Gnanasekaran, Venkata Prasad Chavidi

Lubricants from Vegetable Oil

Frontmatter

Chapter 2. Biodegradable, Renewable, and Eco-friendly Vegetable Oil: Lubricants

Abstract
The environmental pollution, toxicity, and rising cost of conventional lubricants lead to renewed awareness in the improvement of environmentally friendly bio-lubricants. Due to the negative impact (low biodegradability and more toxicity of mineral and synthetic) on the environment, there has been a stable increase in the demand for biodegradable and eco-friendly bio-lubricants. Perhaps, mineral oils pollute the atmospheric air, soil, and drinking water and disturb people’s life and plants to a greater level. However, the major problem leads to the exhaustion of the world’s crude oil, increasing crude oil prices, and problems connected to preservation have brought about renewing or reusing awareness in the use of biodegradable lubricants. Definitely, oils of natural ester are capable as a base stock for environmentally friendly bio-lubricants due to its lubricity, biodegradation capability, viscosity vs. temperature characteristics, low evaporation capacity, etc. The chapter covers the biodegradable mechanism, toxicity ration, and eco-friendly natures of natural esters of vegetable oils.
Dhorali Gnanasekaran, Venkata Prasad Chavidi

Chapter 3. Vegetable Oil as a Multifunctional and Multipurpose Green Lubricant Additive

Abstract
It covers the different types of biodegradable triglycerides of vegetable oil (soybean oil, sunflower oil, jojoba oil, natural garlic oil, etc.) which functioned as multifunctional and multipurpose lubricant additives. In lubricants, each conventional additive improves particularly only one property, i.e., pour point, antiwear, viscosity improver, etc. But in the case of recent studies on additives, natural esters of vegetable oil which are used as multipurpose green additives are discussed in detail.
Dhorali Gnanasekaran, Venkata Prasad Chavidi

Chapter 4. Biodegradable Polymers as Lubricant Additives

Abstract
The physical, chemical, and antiwear performance of lubricant which contains a biodegradable polymer as additive is literature reviewed. Readily available and with its broad range of applications, vegetable oils are reviewed as a very important class of renewable resources for lubricants as well as its additives. The readily available and modified biodegradable polymers are used as renewable novel additives in the lubricant and is reviewed and discussed here.
Dhorali Gnanasekaran, Venkata Prasad Chavidi

Chapter 5. Nanomaterials as an Additive in Biodegradable Lubricants

Abstract
The performance and effectiveness of nanoparticles as an additive in biobased natural ester (vegetable oil) lubricants are appraised. The entire chapter deals with the lubricating properties of additives as nanoparticles, which blend with biodegradable base oil that can reduce the wear and increase load-carrying capacity of base oil remarkably, indicating the high potential of nanoparticles as lubricant additives with excellent levels of performance. The prime and significant advantages of nanoadditives do not need tribo-active elements such as phosphorus and sulfur in principle because they deposit on the rubbing surface and improve the tribological properties of the base oil, displaying excellent friction and wear reduction characteristics. The superior characteristics of nanoadditives are relatively insensitive to temperature and that tribochemical reaction is limited, compared with traditional additives.
Dhorali Gnanasekaran, Venkata Prasad Chavidi

Insulating Fluids from Vegetable Oil

Frontmatter

Chapter 6. Vegetable Oil: An Eco-friendly Liquid Insulator

Abstract
This chapter deals with the basics and chemistry of natural esters and their applications as a liquid insulator. This chapter also describes the refining and processing techniques of various vegetable oil-based natural esters. This chapter also includes detailed discussion of vegetable esters of different origin and their suitability as a liquid insulator. The historical evolution of vegetable esters as transformer insulating fluid was elaborately presented in this chapter. This chapter also distinguishes the natural esters and mineral oils as a liquid insulator. This also gives detailed discussion on current research scenario of vegetable oil-based ester fluids for the power sector.
Dhorali Gnanasekaran, Venkata Prasad Chavidi

Chapter 7. Properties of Vegetable Fluids: A Green Insulator for Power Sector

Abstract
This chapter deals with the properties (physical, thermal, chemical, and electrical) of natural esters to be used as insulating fluids. This chapter also describes the effect of various additives (antioxidant additive, pour point depressant, etc.) on the properties of vegetable oil-based natural esters. It also gives detailed discussion on current research scenario of vegetable oil-based ester fluids for power sector. It also includes challenges and technical difficulties of vegetable ester fluids as a liquid insulator; it also covers comparison between vegetable oil fluids and mineral oils as liquid insulators for transformer application.
Dhorali Gnanasekaran, Venkata Prasad Chavidi
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