Triz-exercise4 - Copy.docx

TRIZ Exercise – Use the Contradiction Matrix for Finding Solution/s System #1: SORTING OF WEIGHTS A moving conveyor has a number of shackles where scalded/dressed chickens are hanging. The chicken has to be classified and graded according to its weight. What has to be inventively designed to solve the problem? Goal To classify and grade scalded/dressed chickens according to weight. Problem The moving conveyor has a number of shackles where scalded/dressed chickens are hanging. Using TRIZ Contradictions Matrix Technical parameters Goal is to classify chickens according to weight = Ease of Manufacture (#32) However, number of shackles in moving conveyor make it difficult to classify chickens = Difficulty of detecting and measuring (# 37)

Inventive principles Using TRIZ Contradictions Matrix upon identifying parameters, the inventive principles obtained are the following: 1 – Segmentation 6 – Universality 11 – Cushion in Advance 28 – Replace Mechanical System

Addressing the Problem: (1) Segmentation The moving conveyor could be divided into different moving sections wherein each section has a weight sorted out for a certain group of hanging dressed chickens. This would also prevent chickens from being cramped up in one moving conveyor with a number of shackles. (2) Universality The moving conveyor sections could also act as weight classifiers. (3) Cushion in Advance

Prior to sorting out the chickens, a weighing balance will be used to determine the weight of each chicken before classifying according to weight. (4) Replace Mechanical System Replace manual classification of chicken weight with weight detectors (for determination of chicken’s weight) and movable parts managed by computerized systems in the moving conveyor sections to direct the chickens to specified weight section.

Suggested Solution The entire system for moving the hanged chickens will be replaced by multiple moving conveyors sectioned according to weight. The moving conveyors will operate with movable parts to direct chickens to specified weight section. Weight detectors will be used to determine the weight of a chicken prior to classification. Entire system will be operated using computers. System #2: STORAGE FOR ACETYLENE GAS Acetylene is produced from the reaction of calcium carbide and water. Acetylene forms an explosive mixture with oxygen or air, especially when highly pressurized. How to store acetylene then so that it can be safely traded in steel cylinders? SOLUTION: Want Store acetylene in a way that it can be safely traded in steel cylinders. Technical Parameter: Stability of the object’s composition But Acetylene forms an explosive mixture with oxygen or air, especially when highly pressurized. Technical Parameter: Object-generated harmful effects Using TRIZ, the guiding/inventive principles obtained are the following: 35- Parameter Change 40- Composite Materials 27- Cheap short-living objects 39- Inert Environment Suggested Solution

Based from these inventive principles, the acetylene can be stored in a place (vacuum) where there is no oxygen present, thus avoiding the formation of explosive mixture; and where reaction is not possible to occur. Acetylene is never used in its pure state and comes in special cylinders containing a porous mass and a mixture of the gas dissolved in a solvent (usually acetone). The cylinders are designed to slow down the decomposition: a dangerous chemical reaction that creates intense heat and explosions. In order to safely trade acetylene gas cylinders, the environment or the oxygen levels in the atmosphere should be less than 21% so as not to quickly raise explosion possibilities In the cylinder storage, the acetylene and oxygen gas bottles must be segregated into their own hazard classes, at least 3 meters away from each other. Screen walls can be erected I side the cylinder storage to segregate those gases. This wall must be at least 1 meter higher than the tallest cylinder, made from non- combustible material, and be impervious to gas vapors.

System #3: EXOTHERMIC REACTION Nuclear power is produced from radioactive materials such as uranium. A plant containing this usually has a runaway reaction and produce extreme heat during production. How to control the process? System#4: DESIGN IMPROVEMENT Old sieving machine for ground corn moves in forward-backward shaking configuration to allow particle size separation. The efficiency of sieving has improved when the mechanical design was change into rotating and gyrating units. How TRIZ help the innovation on the design of the machine? SOLUTION: Want Improve the efficiency of sieving Technical Parameter: Production But Inappropriate mechanical design Technical Parameter: Loss of energy Using TRIZ, the guiding principles obtained are the following: 28- Replace Mechanical System 10- Prior Action

29- Pneumatics & Hydraulics 35- Parameter Change Justification to Suggested Solution Based from these guiding principles, an idea to change the mechanical design into rotating and gyrating units is arrived. This is how TRIZ help the innovation on the design of the machine, thus improves the efficiency of sieving.