‏إظهار الرسائل ذات التسميات Business. إظهار كافة الرسائل
‏إظهار الرسائل ذات التسميات Business. إظهار كافة الرسائل

الجمعة، 2 أغسطس 2013

Lean Manufacturing and value stream mapping

Lean manufacturing is about reducing waste spending in an operation, such as long lead times,
defects and material waste . This principle was first used in Toyota around 1988 and sometime also referred as Toyotism.

Why it is relevant now?

Competition in manufacturing sector is intense and it is increasing with each passing day. Companies are shifting their manufacturing base from developed countries to developing countries to become cost effective. To survive in this stiff competition lean manufacturing can play vital role.

Today we will discuss about major project "Value Stream Mapping for Lean Manufacturing" submitted for fulfillment of their major degrees  by Wolfgang Apel, Jia Yong Li and Vanessa Walton at WORCESTER POLYTECHNIC INSTITUTE (WPI).

In this report we will see how CIS(Central Industrial Supply), a manufacturing company that produces electro-mechanical components had reduced their production time to almost 50 %.


How it was achieved?
To achieve their target, first they used Value Stream Mapping which is a technique used to analyze and design the flow of materials and information required to bring a product or service to a consumer.This map can be drawn using paper and pencil; however more advanced maps are created
using Microsoft Visio as well as Microsoft Excel.Following is a basic drawing example showing how it is done:

At the second step this team uses arena simulation software to simulate possible future states, in third step they studied companies background and working procedure and in fourth step they gave their recommendations which you can read in their report itself.

Other Projects:

Development of a lean operations system in start-up 

Students will be expected to interface with plant management and manufacturing engineers to improve plant layout, production scheduling, process flow, work cell design, and inventory control systems. Since this project involves a start-up operation, student recommendations are expected to contribute to future design and layout of new assembly lines and inventory control systems at the facility.

I hope this article helped you in understanding Lean manufacturing implementation.

الاثنين، 26 سبتمبر 2011

Manufacturing Project Ideas


Manufacturing is a process to develop products for self use or sell. This process is largely associated with the industries which we called manufacturing industries.

There are many projects which you can do as a student of this field to improve efficiency , lowering raw material wastages and making things green.

I am discussing some of these ideas below :

1.Thermodynamic Analysis of Manufacturing Processes Engineering

2.Applications for the Plastics Industry

Plastic industry manufactures and sell polymers in various shapes and sizes. They are used in construction of bridges, buildings and roads.
Many house hold goods are also made up of plastic.

3.Green and Efficient Materials :

Green Manufacturing

4.Use of Waste Resources

5.Reducing waiting time for individual product.

6.Lead time reduction and capacity increase strategy in coil manufacturing for electric motors


Useful Links:

Planning Process in Manufacturing Systems

السبت، 26 مارس 2011

Cogeneration Project

Cogeneration (also combined heat and power, CHP) is the use of a heat engine or a power station to simultaneously generate both electricity and useful heat. We all know that all power plants emit heat while producing electricity, this heat energy can be used for other purposes. Masnedø CHP power station in Denmark(Image shown below)  uses the same concept.In my opinion it is a great project for Mechanical Engineering students.Its use is not only limited to big power plants, it can be used in other places too, good example of that is: implementation of co-generation plant at Carnegie Mellon University about which you can search on internet.


At the time of global warming ,it is vital to improve efficiency of  our power plants,this can be done easily using this method.University of Gaziantep journal about Performance assessment of co-generation plants proves my point.
Coopers' Brewery uses this system to reduce its carbon footprint to 50 percent and at the same time double there production.




How cogeneration works ?





Even though companies started to implement co-generation in their plants , there is still lot to do in this field,for example there can be other ways to use this heat or how many other places this concept can be implemented.

Useful Resources :

Cogeneration for confectioners
MIT Cogeneration Project