Electricity from low grade hea

About

The idea is about a new kind of machine capable of extracting atmospheric heat and converting that into useful power/electricity. This machine would be a combination of special kind of wind turbine that has been known as “concentrated wind turbine” in combination with a blower. The shape of the power generating section i.e. the wind turbine would cylindrical from outside and inside it would be fitted the blades that will rotate and the axis of machine would be connected to an alternator which would generate electricity and/or can supply necessary power to a machine for doing work. As it has already been said that power generation unit will be cylindrically shaped i.e. the entry of machine has circular cross-section. The blower too will have circular cross-section and that diameter would be the same or higher than that of the inlet of turbine. The blower will create the necessary flow of air that will rotate the power generating unit and will generate power. The output from machine would be a few times than the input to the blower. Some little other accessories are needed to ensure that all the flow coming from the blower would enter the power generating unit. One big advantage of the machine is that it can be switched on and off easily. The basic advantage of the machine is that it doesn’t need any kind of fuel or source of heat other than the ambient heat surrounding us. Unlike the solar power, that is useless during night and cloudy days and wind power that is totally dependent on natural wind; this machine can supply power as per need almost any kind of day and any time during a day. It can also be used anywhere in the world and in any kind of environment. And against the power generation, it doesn’t create any kind of polluting gas and/or residue and no kind of radiation. And for tropical part of the world and during summer, this can be a source of cooling without any extra cost. PROOF: The very basic parts those are needed to make the machine is a blower and the power generating unit that is the turbine. Blowers of necessary power and structure are already available in market and it can’t be big problem to find the blower. The most important part is the power generating part that is the concentrated wind turbine. Various kinds of such turbines are now available in market and is being successfully used around the world. One such machine is INVELOX created by SheerWind Inc. This machine can generate 5-6 times power in comparison to conventional wind turbine of similar size. It’s tested and now in use in many projects and power generation units around the world. The special kind of concentrated wind turbine that is needed for this machine is already built and tested. On wind tunnel testing, the machine has been found to be able to generate 3 kW output at 8 m/s velocity and the machine has 1 meter diameter at the inlet. While a blower of 1 meter diameter and 500 W input can generate 8 m/s wind. In short, if the all the flow from the blower can enter the machine and it will generate 6 times more output than the input. The efficiency mentioned i.e. 50% is a modest efficiency and models of blower with higher efficiency is now available in market. And with higher efficiency, the output from the power generating unit will increase according and there are many ways by which the power output can be increased by keeping the input the same. But, the unique point of this machine is use of internal enthalpy of air to generate power/electricity and no such machine is now available in market anywhere in the world. The power generating section is now being used as wind turbine and the inventor of the machine hasn’t claimed it as a machine capable of extracting atmospheric heat and converting that into useful power/electricity. But, by using a blower to generate the airflow, this unique combination of blower and the power generating unit is now capable of extracting atmospheric heat and converting that into electricity. Necessary theoretical analysis and mathematical calculations can also be presented if necessary.