MECHANICAL SEALS FOR PUMPS S. Raghavachari Consultant Chennai Abstract Mechanical seals are pieces of engineering marvel. Process industries could meet today’s stringent environmental pollution regulations through the effective sealing of even the most difficult fluids. This paper describes different kinds of seals‚ their design‚ properties and functioning. Effect of various factors like seal balance‚ face pressure‚ temperature and lubrication on performance of seal and probable causes
Premium Leak Pressure Valve
MECHANICAL PROPERTIES OF FLUIDS 1 Torricelli’s barometer used mercury. Pascal duplicated it using French wine of density 984 kg m-3. Determine the height of the wine column for normal atmospheric pressure. 2 A vertical off-shore structure is built to withstand a maximum stress of 109 Pa. Is the structure suitable for putting up on top of an oil well in the ocean? Take the depth of the ocean to be roughly 3 km‚ and ignore ocean currents. 3 A hydraulic automobile lift is designed to lift cars with
Premium Atmospheric pressure Density Liquid
Mechanical and organic solidarity From Wikipedia‚ the free encyclopedia Mechanical Solidarity and Organic Solidarity refer to the concepts of solidarity as developed by Émile Durkheim. They are used in the context of differentiating between mechanical and organic societies. According to Durkheim‚ the types of social solidarity correlate with types of society. Durkheim introduced the terms "mechanical" and "organic solidarity" as part of his theory of the development of societies in The Division
Premium Sociology
Therefore‚ when the economy is in a poor state‚ buyers are prone to diminish the measure of the scope of their strategies‚ or maybe even drop their present strategy to change to an insurance agency with lower rates. Technological Trends and Issues A mechanical
Premium Economics Mobile phone Marketing
Digestion: the process whereby a biological entity processes a substance‚ in order to chemically convert the substance into nutrients. It usually involves mechanical manipulation and chemical action. Mechanical Digestion What is it? This type of digestion involves the mixing‚ grinding or crushing of large pieces of food into smaller places. Why does it take place? So that the food we consume is broken down into smaller pieces before we swallow it which in turn makes process of chemical digestion
Premium Digestion
VE JOB PLAN EXPERIMENT 9 VALUE ENGINEERING JOB PLAN 1. INTRODUCTION: Following are the phases to be carried out in value engineering job plan. 1) Orientation phase 2) Information phase 3) Function analysis 4) Creation phase 5) Evaluation phase 6) Investigation phase 7) Implementation phase 2.1 ORIENTATION PHASE: Following are the steps to be carried out in the orientation phase. Lays foundation for value efforts Project selection Forming the team Laying out responsibilities to each member
Premium Problem solving Design
Is There a Future for Mechanical Beings? In today’s fast-paced society we ask ourselves a series of questions: Did I let the dog out? What’s for dinner tonight? How am I going to find the time to finish my English essay? I believe these questions can be answered by the developmental studies of machines known as robotics. The machines themselves are called robots. Robots are mechanical beings capable of operating as humans. Throughout my life I have been fascinated by Artificial Life (A.L
Premium Star Wars Episode IV: A New Hope Human Star Wars
Assessment Criteria The criterion demonstrated by this assessment is given below. Criteria for PASS P1 Explaining the key features of relevant regulations and health & safety as applied to the working environments in two engineering organisations.” P2 Describing the roles and responsibilities under current health & safety legislation of those involved.” M2 (Optional) Explain the consequences of failing to comply with health & safety legislation when in the workplace. Summary of Lecturer
Free Occupational safety and health Employment
KATHMANDU UNIVERSITY SCHOOL OF ENGINEERING Department of Electrical & Electronics Engineering LAB REPORT- III Reciprocity Theorem of Antenna (Tx and Rx pattern is same) By: Sudip Shrestha (41020) To: Manya Gautam Nov 21‚ 2010 Theory: 1. Reciprocity theorem: Many antenna properties are the same for both transmitting and receiving. It is often easier to calculate the gain of a transmitting antenna than the collecting area of a receiving antenna‚ and it is often easier
Premium Antenna Reciprocity
Mechanical energy Mechanical energy is the energy that is possessed by an object due to its motion or due to its position. Mechanical energy can be either kinetic energy (energy of motion) or potential energy (stored energy of position). Introduction: We use a system consisting of two weights hanging at each end of a thin thread lying over a wheel. A photo gate is placed so that the light is interrupted by the spokes of the wheel. The data are recorded electronically and this makes it possible
Premium Potential energy Energy Harshad number