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The fluid enters near the center, is given energy by the disks, then exits at the periphery. Tesla subsequently discovered that smooth rotor disks with small washers bridging the disks in ~12–24 places around the perimeter of a 10″ disk and a second ring of 6–12 washers at a sub-diameter made for a significant improvement in starting torque without compromising efficiency. However, in testing against more modern engines, the Tesla Turbine had expansion efficiencies far below contemporary steam turbines and far below contemporary reciprocating steam engines. The oil crisis drove the majority of new civilian vessels to turn to diesel engines. One these eddies are loss to the useful energy that can be extracted from the system and second, as they are in opposite direction, they decrease the energy of the incoming steam stream. Tesla's patents state that the device was intended for the use of Today, many amateur experiments in the field have been conducted using Tesla turbines which use One proposed current application for the device is a Applications of the Tesla turbine as a multiple-disk centrifugal In Tesla's time, the efficiency of conventional turbines was low because turbines used a direct drive system that severely limited the potential speed of a turbine to whatever it was driving. The disks need to be as thin as possible at the edges in order not to introduce turbulence as the fluid leaves the disks. The device can function as a pump if a similar set of disks and a housing with an involute shape (versus circular for the turbine) are used. Here we have to note that fluids start to behave like solid bodies at high relative velocities, and in TT case, we also have to take in consideration the additional pressure. When a load is applied on the TT shaft the slows down, i.e. Some of Tesla turbine's advantages lie in relatively low flow rate applications or when small applications are called for. "The device can function as a pump if a similar set of disks and a housing with an Smooth rotor disks were originally proposed, but these gave poor starting torque. This behavior is not exclusive to Tesla turbines. In this configuration a motor is attached to the shaft. According to the old literature on steam boilers it is said, that steam at high speed, resulting from high pressure source, cuts steel as a "knife cuts butter".This dynamics appears to be a derivative of what Tesla commented, and although it is not mentioned by him, it is a logical next step to explain the thermodynamics in the system. the relative speed of the discs to the (movement) fluid increases as the fluid, at least initially, preserves its own momentum. In the motor, on the contrary, the first named pressure, being opposed to that of the supply, reduces the effective head and the velocity of radial flow towards the center. The recreational force to the steam head pressure actually builds, relatively quickly, as a steam pressure “belt” along the periphery of the turbine. A moderate load makes for high efficiency.
That belt is most dense, pressurized, in the periphery as it pressure, when the rotor is not under load, will be a notch less, then the steam pressure. Or in their words, they are trying to minimize the angle with which the steam is hitting their surface area, as to create smooth seam flow, without any so called “eddies” or turbulence.
For example, we can take a 10 cm (3.9 in) radius where at 9000 RPM the peripheral disk speeds are 90 m/s (300 ft/s), when there is no load on the rotor, the disks move at approximately the same speed with the fluid, but when the rotor is loaded, the relative velocity differential (between the SCS and the metal disks) increases and 45 m/s (150 ft/s) rotor speed has a relative speed of 45 m/s to the SCS. Maximum efficiency comes in this system when the inter-disk spacing approximates the thickness of the boundary layer, and since boundary layer thickness is dependent on viscosity and pressure, the claim that a single design can be used efficiently for a variety of fuels and fluids is incorrect. In his final work with the Tesla turbine and published just prior to his retirement, Rice conducted a bulk-parameter analysis of model laminar flow in In the pump, the radial or static pressure, due to centrifugal force, is added to the tangential or dynamic (pressure), thus increasing the effective head and assisting in the expulsion of the fluid. Too heavy a load increases the slip in the turbine and lowers the efficiency; with too light a load, little power is delivered to the output, which also decreases efficiency (to zero at idle).
The fluid enters near the center, is given energy by the disks, then exits at the periphery. Tesla subsequently discovered that smooth rotor disks with small washers bridging the disks in ~12–24 places around the perimeter of a 10″ disk and a second ring of 6–12 washers at a sub-diameter made for a significant improvement in starting torque without compromising efficiency. However, in testing against more modern engines, the Tesla Turbine had expansion efficiencies far below contemporary steam turbines and far below contemporary reciprocating steam engines. The oil crisis drove the majority of new civilian vessels to turn to diesel engines. One these eddies are loss to the useful energy that can be extracted from the system and second, as they are in opposite direction, they decrease the energy of the incoming steam stream. Tesla's patents state that the device was intended for the use of Today, many amateur experiments in the field have been conducted using Tesla turbines which use One proposed current application for the device is a Applications of the Tesla turbine as a multiple-disk centrifugal In Tesla's time, the efficiency of conventional turbines was low because turbines used a direct drive system that severely limited the potential speed of a turbine to whatever it was driving. The disks need to be as thin as possible at the edges in order not to introduce turbulence as the fluid leaves the disks. The device can function as a pump if a similar set of disks and a housing with an involute shape (versus circular for the turbine) are used. Here we have to note that fluids start to behave like solid bodies at high relative velocities, and in TT case, we also have to take in consideration the additional pressure. When a load is applied on the TT shaft the slows down, i.e. Some of Tesla turbine's advantages lie in relatively low flow rate applications or when small applications are called for. "The device can function as a pump if a similar set of disks and a housing with an Smooth rotor disks were originally proposed, but these gave poor starting torque. This behavior is not exclusive to Tesla turbines. In this configuration a motor is attached to the shaft. According to the old literature on steam boilers it is said, that steam at high speed, resulting from high pressure source, cuts steel as a "knife cuts butter".This dynamics appears to be a derivative of what Tesla commented, and although it is not mentioned by him, it is a logical next step to explain the thermodynamics in the system. the relative speed of the discs to the (movement) fluid increases as the fluid, at least initially, preserves its own momentum. In the motor, on the contrary, the first named pressure, being opposed to that of the supply, reduces the effective head and the velocity of radial flow towards the center. The recreational force to the steam head pressure actually builds, relatively quickly, as a steam pressure “belt” along the periphery of the turbine. A moderate load makes for high efficiency.
That belt is most dense, pressurized, in the periphery as it pressure, when the rotor is not under load, will be a notch less, then the steam pressure. Or in their words, they are trying to minimize the angle with which the steam is hitting their surface area, as to create smooth seam flow, without any so called “eddies” or turbulence.
For example, we can take a 10 cm (3.9 in) radius where at 9000 RPM the peripheral disk speeds are 90 m/s (300 ft/s), when there is no load on the rotor, the disks move at approximately the same speed with the fluid, but when the rotor is loaded, the relative velocity differential (between the SCS and the metal disks) increases and 45 m/s (150 ft/s) rotor speed has a relative speed of 45 m/s to the SCS. Maximum efficiency comes in this system when the inter-disk spacing approximates the thickness of the boundary layer, and since boundary layer thickness is dependent on viscosity and pressure, the claim that a single design can be used efficiently for a variety of fuels and fluids is incorrect. In his final work with the Tesla turbine and published just prior to his retirement, Rice conducted a bulk-parameter analysis of model laminar flow in In the pump, the radial or static pressure, due to centrifugal force, is added to the tangential or dynamic (pressure), thus increasing the effective head and assisting in the expulsion of the fluid. Too heavy a load increases the slip in the turbine and lowers the efficiency; with too light a load, little power is delivered to the output, which also decreases efficiency (to zero at idle).