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52MECHANICAL ENGINEERING: Thermodynamics - Atmospheric, Barometric, Gage, Absolute, and Vacuum pressure
Atmospheric pressure --> Patm= 14.7 psi= 101.325 kPa= 760 mmHg = 760 torr= 29.92 inHg= 1013.25 millibars= 1.01325 barWhen gage pressure is above atmospheric:Pabs = Patm + PgageWhen gage pressure is below...
47MECHANICAL ENGINEERING: Thermodynamics - Closed system, Isothermal, piston-cylinder, Boyle's law, Parabolic curve
CLOSED SYSTEM: piston-cylinderconditions:Temperature is constant, T = cBoyle's law: Absolute pressure is inversely proportional to the volume of a gaspV = constantpV = kp1V1 = p2V2curve: Parabolicwhere:p =...
44Thermodynamics
The field of science, which deals with the energies possessed by gasses and vapours, is known as Thermodynamics. It also includes the conversion of theses energies in terms of heat and mechanical work and...
0 comments62REFRIGRATION
Refrigeration may be defined as the process by which the temperature of a given space or a space or a substance is lowered below that of the atmosphere or surroundings. the system maintained at the lower...
0 comments54Refrigrant-22
R-22 is a m an-made refrigerant developed for refrigeration installations that need a low evaporating temperature. One application is in fast freezing unit which maintain a temperature of -200F to -400F (-29...
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59An Introduction To Basic Thermodynamics.
In this universe energy is available in various forms.A Branch of Science which deals with energy in all its forms and the laws governing the transformation of energy from one form to another is known as...
0 comments60Second Law Of Thermodynamics
FIRST LAW OF THERMODYNAMICS: This law states that " The heat of mechanical work are inter convertible" According to this law a definite amount of mechanical work is needed to produce a definite amount of...
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43Magic & Thermodynamics
Interesting resembelances between magic/psychic energy and thermodynamics. Zeroth Law of Thermodynamics When two systems are put in contact with each other, there will be a net exchange of energy...
0 comments58Application of Refrigeration
The application of refrigeration are numerous in our daily life, some of them are given below: · Comfort air conditioning of auditoriums, hospitals, residences, hotels, offices etc....
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61Different Laws of energy and gas
1st Law of thermodynamics is energy cannot be created or destroyed, but can be converted from one form to another. When one form is generated it is done at the expense of another energy form. 2nd Law of...
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