Energy Security, Global Warming and Engineering
One research report (Energy Security.pdf) is attached with this post. It is about how we can use engineering to slove energy and global warming problem.
Jigar Y. Patel's blog
Mechanism to increase energy efficiency
As shown in figure two pulleys can rotate about their axis. Stationary
plate is simply supported on these two pulleys. Now the weight of
stationary plate applied on each pulley in vertical downward direction
is Mg/2. This Mg/2 will divided in two parts. One is tangential and
second is towards the center. Tangential part will help to rotate
pulleys and toward the center part will generate the friction.
Force is stationary and it can help to rotate pulleys at some angle.
Uses and Advantages:
Rotate pulleys using less energy
As shown in figure (energyefficiency1.jpg) sliding plates can slide over fixed plates. Stationary plate is simply supported horizontaly on sliding plates. Lubrication is provided at contact surfaces of stationary plate and sliding plates. Weight or load or force (mg) is applied at center of stationary plate. This load is equally devided and applied on each sliding plate in vertical downward direction (mg/2). This mg/2 cos(alpha) helps sliding plate to slide in nearly downward direction.