Q6: Give an answer to the following questions: 1. What is the difference between dry and wet air? 2. How are the air humidity and temperature be controlled in multi zone buildings? 3. What is the difference between the wet-bulb temperature and the thermodynamic wet-bulb temperature? 4. How can the air humidity ratio be increased at fixed dry bulb temperature using steam injection process? 5. Can vapor compression system work without a throttling device? Why?
Theory and Design for Mechanical Measurements
Measurement is a term that refers to analyzing a manufactured component regarding the degree of accuracy for dimensions, tolerances, geometric profile, roundness, flatness, smoothness, etc. Measurement always involves comparing the manufactured component or the prototype with a standard specimen whose dimensions and other parameters are assumed to be perfect and do not undergo changes with respect to time.Precisely in mechanical engineering the branch that deals with the application of scientific principles for measurements is known as metrology. The domain of metrology in general deals with various measurements like mechanical, chemical, thermodynamic, physical, and biological measurements. In mechanical engineering, the measurements are limited to mechanical specific such as length, mass, surface profile, flatness, roundness, viscosity, heat transfer, etc.
Basic principles of engineering metrology
Metrology is described as the science of measurement, precision, and accuracy. In other words, it is a method of measurement based on units and predefined standards.
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