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CRYOGENICS AND ROCKET PROPULSIONS



INTRODUCTION

A rocket is a machine that develops thrust by the rapid expulsion of matter. The major components of a chemical rocket assembly are a rocket motor or engine, propellant consisting of fuel and an oxidizer, a frame to hold the components, control systems and a cargo such as a satellite. A rocket differs from other engines in that it carries its fuel and oxidizer internally, therefore it will burn in the vacuum of space as well as with ....etc

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Water treatment is any process that makes water more acceptable for a specific end-use. The end use may be drinking, industrial water supply, irrigation, river flow maintenance, water recreation or many other uses including being safely returned to the environment. Water treatment removes contaminants or reduces their concentration so that the water becomes fit for its desired end-use, . ....etc

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1. INTRODUCTION TO CRYOGENICS
Cryogenics is the study of how to get to low temperatures and of how materials behave when they get there. Besides the familiar temperature scales of Fahrenheit and Celsius (Centigrade), cryogenicists use other temperature scales, the Kelvin and Rankine temperature scale. Although the apparatus used for spacecraft is specialized, some of the general approaches are the same as used in everyday life. Cryogenics involves the study of low temperatures from about 100 Kelvin to a ....etc

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KERALA MINERALS AND METALS LTD
Industrial visit report

INTRODUCTION
The history of the beaches of Sankarmangalam and nearby areas is inextricably intertwined with the history of the precious beaches and KMML. Precious, as was discovered in 1909 by the German scientist Dr. Schomberg who found traces of monazite in the sand flakes on the imported coir from Sankaramangalam. The beaches with a wealth of rare earth minerals became the centre of scientific attraction.

By 1932, a visionar ....etc

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cryogenics heat treatment pdf

A cryogenic treatment is the process of treating workpieces to cryogenic temperatures (i.e. below 190 C ( 310 F)) in order to remove residual stresses and improve wear resistance on steels. In addition to seeking enhanced stress relief and stabilization, or wear resistance, cryogenic treatment is also sought for its ability to improve corrosion resistance by precipitating micro-fine eta carbides, which can be measured before and after in a part using a quantimet.

The process has a wide range of applications f ....etc

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Improving component wear performance through cryogenic treatment
Controlling machine wear is a fundamental function of lubrication. By properly specifying lubricant viscosity, using appropriate modifying additives, and controlling contamination, wear rates can be
minimized to extend equipment life. Cryogenic treatment of tooling steels is a proven technology to increase wear resistance and extend
intervals between component replacements for blades, bits, and machining mills. Recent studies have been conducted on the effects of cryoge ....etc

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Prepared by:
Amit B. Mahindrakar

Introduction

This study is motivated by a real problem at the Alang ship-dismantling facility near Bhavnagar in Gujarat. The focus of this study is the paint chip waste which is generated in ship breaking activity. Alang, located 56 Km away from Bhavnagar city in Gujarat, came up as ship breaking site during 1982-83. Hundreds of old ships, after their useful life, are broken at the Alang ship breaking yards without any precaution to protect the environment. Ship breaking and its harmful consequ ....etc

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