Question

1. A handheld bicycle pump can be used as an atomizer to generate a fine mist. In such an atomizer, the hole diameter is 0.3 cm. The liquid reservoir is open to the atmosphere. If the atmospheric conditions are 20°C and 95 kPa. Apply a proper form of energy conservation principle to identify the minimum speed of the piston during pumping to initiate the atomizing effect. The flow is assumed to be frictionless, steady and incompressible (Given gas constant, R = 0.287 kJ/kg K)

Answer 1

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