About me


I am being a Mechanical engineer with 40 years of experience in maintenance of production line and Power plant machines. During my services, I had come across many different kinds of problems and breakdowns which leads to partial or total shutdown of the plant. A suitable & safe method had to be adopted to fix the deficiency and put back the machine into operational. 

In my entire tenure, I had taken up many challenging tasks and successfully solved the issue. To expedite the maintenance, it is very much essential to understand the technology of machine. 

The idea of this website is to share my experience with young generation of Mechanical Engineers. 

Here is a moral story of an Old man's Experience.

A giant ship engine failed. The ship’s owners tried one expert after another, but none of them could figure but how to fix the engine.

Then they brought in an old man who had been fixing ships since he was a young. He carried a large bag of tools with him, and when he arrived, he immediately went to work. He inspected the engine very carefully, top to bottom.

Two of the ship’s owners were there, watching this man, hoping he would know what to do. After looking things over, the old man reached into his bag and pulled out a small hammer. He gently tapped something. Instantly, the engine lurched into life. He carefully put his hammer away. The engine was fixed!

A week later, the owners received a bill from the old man for ten thousand dollars.

“What?!” the owners exclaimed. “He hardly did anything!”

So they wrote the old man a note saying, “Please send us an itemized bill.

The man sent a bill that read:

Tapping with a hammer………………….. $ 2.00

Knowing where to tap…………………….. $ 9,998.00

Effort is important, but knowing where to make an effort makes all the difference!


Good Luck

SEALS



STATIC SEALS:

Sealing between two surfaces that do not have any relative movement to each other. 

DYNAMIC SEALS:

Sealing between two surfaces that have relative movement to each other.


SEALS & GASKETS



MECHANICAL SEAL

POWER TRANSMISSION

POWER TRANSMISSION



Power transmission, in broad sense categorised as:

                A.    Friction Drive

                B.    Positive Drive

Types of Power Transmission Elements are:

                Belt & Pulleys

Circular belt




Flat belt

Link belt

Multi Ribbed belt



Synchronous (Timer) belt


V-belt

Chain & Sprocket



Couplings

Rigid Couplings: Rigid couplings are either integral with shaft forging (mono-bloc) or are  shrunk on to the shaft. 

rigid coupling permits neither axial nor radial mis-alignment between the shafts of the driver and driven unit.

Flexible Couplings: Flexible couplings can accommodate some misalignment but can not be an excuse for poor alignment or negligence of maintenance.

Clutches

Friction Clutch



Positive Clutch


Gear train


Screw & Nut

https://www.heason.com/news-media/technical-blog-archive/how-do-ball-screws-work-

Heat Exchanger

Heat Exchanger


A heat exchanger is a device that transfers heat energy  between one media to another in a system or process.

Terminologies used depends on applications are, condenser, heater, cooler, Chiller, Steam Generator, evaporator, Vaporiser etc. 

Classification:

Fluid contact: Direct contact, Indirect contact

Direct Contact:

                      Cooling Towers

                    Distillation (Fractional) Column

Indirect Contact:

                      Tubular type:

Shell & Tube

Tube arrangement: Straight tube, U tube, Bowed tube, Coiled tube

Position: Vertical, Horizontal

No of Pass (Flow arrangement): single pass, Multiple pass

Flow Direction: Counter flow, Parallel flow, Cross flow

                         Plate type

Over View

Bearings

Bearings are primarily a load carrying member either with point contact or with line contact.
Classification:

   Based on Friction:

               ·    Friction Bearing

        ·    Anti Friction Bearing

Based on type of Friction:

               ·    Sliding Friction

        ·    Rolling Friction

Based on Action of Fluid film   (Lubricatio):

                ·    Hydro Static

        ·    Hydro Dynamic

Based on Rolling Element Contact (Load):

                ·    Radial Contact (Load)

        ·    Angular Contact (Load)

        ·    Combination of both (Load)


Turbine

Turbine

Dynamic Equipment

Dynamic Equipment (Rotating Equipment), is having Rotary movement and driven by a Prime mover. 















Compressor

Compressor


Dynamic Equipment
Dynamic Equipment (Rotating Equipment), is having Rotary movement and driven by a Prime mover.

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