A new air turbine is required for a dentist's drill. For the drill bit to be effectively abrade tooth enamel the turbine be rotate at high speed of 400000rpm. The turbine design must be small and flexible according to precision engineering so that all parts of the patient's mouth can be access and the exit air flow rate from the system is 14 L/min is needed for proper operation. The operating pressure and temperature to drive the turbine is 5 bar and 400 K. Calculate: 2.1 The specific speed of the turbine and use the specific speed from the turbine and determine the type of turbo machinery required by the system. 2.2 Determine the power used by the turbine during operation and account how this power is used during operation.

A new air turbine is required for a dentist's drill. For the drill bit to be effectively abrade tooth enamel the turbine be rotate at high speed of 400000rpm. The turbine design must be small and flexible according to precision engineering so that all parts of the patient's mouth can be access and the exit air flow rate from the system is 14 L/min is needed for proper operation. The operating pressure and temperature to drive the turbine is 5 bar and 400 K. Calculate: 2.1 The specific speed of the turbine and use the specific speed from the turbine and determine the type of turbo machinery required by the system. 2.2 Determine the power used by the turbine during operation and account how this power is used during operation.

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter40: Typical Operating Conditions

Section: Chapter Questions

Problem 10RQ: The seasonal energy efficiency ratio (SEER) includes the energy used in the _____and _____cycles.

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