Design a catalytic converter preheater using solar energy. Decide if solar collectors should be on the vehicle or on a battery-recharging station. Calculate the sizes needed for the main components...

Design a catalytic converter preheater using solar energy. Decide if solar collectors should be on the vehicle or on a battery-recharging station. Calculate the sizes needed for the main components (e.g., battery, collector). Draw a simple schematic of the system.

Design a system to absorb the fuel vapors escaping from the vent on an automobile fuel tank. The system should have a method of regeneration, with all fuel eventually being input into the engine.