AHL

__AHL - Additional Higher Paper - 49 hours expected of coverage, which we'll need to address. So plenty of extra reads & start asking questions!!!!__

I've taken the main //ingredients// from IBO (2007) Design Technology DP Guide - Information Only, p. 71 - 86, Anthony Rowe Ltd

__Topic 8 - Energy (9 hrs)__

1. Historical Overview i.e kinetic / potential 2. Types of energy, environmental & political aspects i.e fossil fuels, acid rain, Kyoto, sustainable, alternative 3. Case studies e.g Tyota Prius hybrid, solar cooking in Nepal

__Topic 9 - Structures (10 hrs)__ Stress 1. Young's modules = i.e apply this to range of materialsStrain 2. Forces i.e how external loads give rise to internal within structures load design load 3. Strength & stiffness of structures i.e evaluate importance of strength & stiffness in design context i.e Stiffness = ....... Factors of safety= ..................deflection normal max load 4. Beams e.g LVL (Laminated veneer lumbar)load distance moved by effort MA

__Topic 10 - Mechanical Design (8 hrs)__ i.e Mechanical Advantage (MA) Velocity ratio (VA) Efficiency (E) i.e MA = ...... VR= .................................. Efficiency=....... effort distance moved by load VR 1. General concepts i.e Levers Gears, Belts, Pulleys & Inclined Plane 2. Mechanical motion i.e cams, linkages, 3. Conversion of motion i.e gears, linkages, chains

__Topic 11 - Advanced manufacturing techniques (10 hrs)__

1. Joining i.e welds, permanent joining techniques, adhesives 2. Moulding i.e sprue, flash, parison, die, draft, angle and injection moulding e.g blow moulding, vaccum forming 3. Casting i.e die, loss wax, high - pressure 4. Forming i.e spray-up, lay-up, filament welding, vaccuum bagging

__Topic 12 - Sustainable Development (12 hrs)__

1. Appropriate technology & sustainable development e.g solar, hybrid, wind-up etc, economic, environmental, social sustainabilitysee "The Suststainability Report" of the International Institute for Sustainable Development " (i'll try and post the link) 2. Sustainable building design e.g effective energy management systems e.g low cost energy, water use, waste prevention, air, heating, lighting using daylight / solar etc.

Jonathan