Torque or Turning Force:
It is the total amount of force which is required to create acceleration on moving substance.
Couple:
Two forces those acts on equally,parallely & oppositely on two separate points of same material.
Moment:
It is the amount of moving effect which is gained for action of turning force.
Stress:
Strain:
If a force acts on a substance, then in that case if the substance would deform. Then the amount of deformation per unit length of that substance is called strain.
Devices for fluid:
Venturimeter:
It measures discharge of fluid.
Notches :
It measures discharge of fluid.
Orifice meter:
It measures discharge of fluid.
Pitot tube :
It measures velocity of fluid.
Mach Number:
It is the ratio of the velocity of fluid to the velocity of sound.
M=1 ----------------- Sonic flow
M> (1-6) ----------- Super-Sonic flow
M>6 ---------------- Hyper-Sonic flow
Fluid discharge/Fluid flow:
Quantity of fluid flowing per second.
First Law of Thermodynamics:
In a closed system, work deliver to the surrounding is directly proportonal to the heat taken from the surrounding.And also, In a closed system, work done on a system is directly proportonal to the heat deliver to the surrounding.
Second Law of Thermodynamics:
It is impossible to make a system or an engine which can change 100 percent input energy to 100 percent output.
Entropy:
It is a thermodynamic property.
Calorific Value of fuel:
It us the total amount of heat obtained from burning 1 kg solid or liquid fuel.
It is the total amount of force which is required to create acceleration on moving substance.
Couple:
Two forces those acts on equally,parallely & oppositely on two separate points of same material.
Moment:
It is the amount of moving effect which is gained for action of turning force.
Stress:
It is the force that can prevent equal & opposite force. That means, it is the preventing force. If one force acts on outside of a material, then a reactive force automatically acts to protest that force. The amount of reactive force per unit area is called stress. e.g. Tensile Stress, Compressive Stress, Thermal Stress.
Strain:
If a force acts on a substance, then in that case if the substance would deform. Then the amount of deformation per unit length of that substance is called strain.
Spring:
It is one type of device which is being distorted under certain amount of load & also can also go to its original face after the removal of that load.
It is one type of device which is being distorted under certain amount of load & also can also go to its original face after the removal of that load.
Its function:
To store energy.
To absorb energy.
To control motion of two elements.
Stiffness:
Load per unit deflection. The amount of load required to resist the deflection.
Specific Weight:
Weight per unit volume of the fluid.
Specific Volume:
Volume per unit mass of the fluid.
Specific Gravity:
It is the ratio of specific weight of required substance to specific weight of pure water at 4 degree centigrade temperature.
Specific heat:
The amount of heat required to increase 1 unit temperature of 1 unit mass.
Viscosity:
Dynamic Viscosity:
The amount of resistance of one layer of fluid over other layer of fluid.
Kinematic Viscosity:
It is the ratio of dynamic viscosity to density.
Stiffness:
Load per unit deflection. The amount of load required to resist the deflection.
Specific Weight:
Weight per unit volume of the fluid.
Specific Volume:
Volume per unit mass of the fluid.
Specific Gravity:
It is the ratio of specific weight of required substance to specific weight of pure water at 4 degree centigrade temperature.
Specific heat:
The amount of heat required to increase 1 unit temperature of 1 unit mass.
Viscosity:
Dynamic Viscosity:
The amount of resistance of one layer of fluid over other layer of fluid.
Kinematic Viscosity:
It is the ratio of dynamic viscosity to density.
Buoyancy:
When a body is immersed in a liquid, it is lifted up by a force equal to weight of liquid displaced by the body. The tendency of liquid to lift up an immersed body is buoyancy. The upward thrust of liquid to lift up the body is called buoyancy force.
Bernoulli's Equation:P/γ +V²/2g +Z = Constant
When a body is immersed in a liquid, it is lifted up by a force equal to weight of liquid displaced by the body. The tendency of liquid to lift up an immersed body is buoyancy. The upward thrust of liquid to lift up the body is called buoyancy force.
Bernoulli's Equation:P/γ +V²/2g +Z = Constant
Where, P = pressure,V = velocity,Z = Datumn Head
Devices for fluid:
Venturimeter:
It measures discharge of fluid.
Notches :
It measures discharge of fluid.
Orifice meter:
It measures discharge of fluid.
Pitot tube :
It measures velocity of fluid.
Mach Number:
It is the ratio of the velocity of fluid to the velocity of sound.
M=1 ----------------- Sonic flow
M> (1-6) ----------- Super-Sonic flow
M>6 ---------------- Hyper-Sonic flow
Fluid discharge/Fluid flow:
Quantity of fluid flowing per second.
(through a section of pipe/ through a section of channel)
Q=AV
where, V= velocity of fluid,A= cross-sectional area of pipe/channel
Note: 1m³ = 1000 L1 cusec = 1 ft³/sec1 ft = 0.3048 m
Hydraulic Machine:
Turbine,Pump,Compressor etc.
Draft tube:
It attaches with reaction turbine . Its function is to reduce energy loss from reaction turbine & it also reduce pressure at outlet which is must blow the atmospheric pressure.
Themodynamics Law:
Zeroth Law
First Law of Thermodynamic
Second Law of thermodynamic
Zeroth Law:
If two body are in thermal equilibrium with a third body then these two body are also in thermal equilibrium with each other.
Note: 1m³ = 1000 L1 cusec = 1 ft³/sec1 ft = 0.3048 m
Hydraulic Machine:
Turbine,Pump,Compressor etc.
Draft tube:
It attaches with reaction turbine . Its function is to reduce energy loss from reaction turbine & it also reduce pressure at outlet which is must blow the atmospheric pressure.
Themodynamics Law:
Zeroth Law
First Law of Thermodynamic
Second Law of thermodynamic
Zeroth Law:
If two body are in thermal equilibrium with a third body then these two body are also in thermal equilibrium with each other.
First Law of Thermodynamics:
In a closed system, work deliver to the surrounding is directly proportonal to the heat taken from the surrounding.And also, In a closed system, work done on a system is directly proportonal to the heat deliver to the surrounding.
Second Law of Thermodynamics:
It is impossible to make a system or an engine which can change 100 percent input energy to 100 percent output.
Entropy:
It is a thermodynamic property.
ds = dq/T
where, ds = change of entropy, dq = change of heat, T = Temperature.
In adiabatic process, entropy can not change. Actually,lacking or mal-adroitness of tranfering energy of a system is entropy.
Calorific Value of fuel:
It us the total amount of heat obtained from burning 1 kg solid or liquid fuel.
No comments:
Post a Comment