PDF Publication Title:
Text from PDF Page: 034
2.10. LITTLE’S LAW Little’s Law is a helpful tool for industrial engineers to determine if a production line is working well or not. In lean manufacturing, Little’s Law can be helpful to determine the necessary WIP amount that a production line needs to meet customer demand. In general, production lines are based on three parameters: cycle time (CT), throughput (TH), and work in process inventory (WIP), which are defined as: a) CT: “average time from release of a job at the beginning of the routing until it reaches an inventory point at the end of the routing (the time the part spends as WIP)” (Hopp et al 2001). b) TH: “average output of a production process (machine, workstation, line plant) per unit time” (Hopp et al 2001). c) WIP: “inventory between the start and end points of a product routing” (Hopp et al 2001). Little’s Law is defined as the relationship between Work-In-Process, throughput and flow time of a production system, and it is represented by the following formula: WIP= TH *CT It is used to predict system behavior and validate operational improvements in a variety of production scenarios. Little’s Law also provides a measure of the stability in the current system. This measure can provide the maximum achievable operational improvements that a production line or system can have. Little’s Law can be applied to a single machine, a production line or a complete manufacturing facility (Rust 2008). Little’s Law uses two key parameters to predict or measure the stability of a system: the bottleneck rate (rb) and the raw process time (To). Hoppe et. al (2001) describes the rb as: “the rate (parts per unit time or jobs per unit time) of the workstation having the highest long term utilization; and the To as: “ the sum of the long-term average process times or each workstation 24PDF Image | Impact of Vacuum-Drying on Efficiency of Hardwood Products
PDF Search Title:
Impact of Vacuum-Drying on Efficiency of Hardwood ProductsOriginal File Name Searched:
Brenes_Angulo_OM_T_2014.pdfDIY PDF Search: Google It | Yahoo | Bing
5,000 BF Shipping Container Lumber Dry Kiln For Quality Lumber The 5,000 BF container kiln consists of one 40 foot high-cube aluminum shipping container... More Info
Shipping Container Lumber Dry Kilns by Global Energy Global Energy designed and developed the container kiln back in 1991. The purpose is to give access to portable sawmill owners, furniture makers, and small business the value added profit of dry kiln lumber and quality hardwoods... More Info
Vacuum Kiln Conversion Kit for Lumber and Wood Dry Kilns Convert your existing conventional dry kiln into a fast drying vacuum kiln. Similar to vacuum bagging in the boat building and aircraft industry, we have come up with a proprietary process which allows you to build a very simple vacuum kiln at a fraction of the price, and without the intensive conventional metal chamber structure... More Info
Vacuum Pump Cart System for Bagging Clamping Wood Drying and more Vacuum Cart with 2HP Pump and Dual Pistons with multiple multiplex vacuum ports and liquid reservoir... More Info
Vacuum Bagging Basics Vacuum bagging is a method of clamping, which has traditionally been used in the composites industry, but can also be used for vacuum drying materials, including wood products... More Info
| CONTACT TEL: 608-238-6001 Email: greg@globalmicroturbine.com | RSS | AMP |