Why cannot a throttling calorimeter measure the quality if the steam is very wet? How is the quality measure then?
Answers
Answer:
Developed countries want developing countries to liberalised their trade and investment because then the MMCs belonging to the developed countries can set up factories in less expensive developing nations,and thereby increase profits, with lower manufacturing costs and the small scale price. In my opinion the developing countries should demand, in return for some manner of protection of domestic producers against competition from import , also charge should be levied on MNCs looking to set base in developing nations.
Answer:
Explanation:
A throttling calorimeter measures the quality of steam by passing a small amount of steam through a narrow orifice from a higher pressure to a lower pressure, causing the steam to undergo adiabatic expansion. The dryness fraction or quality of the steam is then determined based on the measured temperature and pressure before and after the expansion.
However, if the steam is very wet, i.e., it contains a significant amount of liquid droplets, the expansion process in the throttling calorimeter will not be adiabatic. Instead, the liquid droplets will undergo a process of evaporation or vaporization, which will absorb some of the heat from the surrounding environment, leading to inaccurate temperature and pressure measurements. As a result, the quality of very wet steam cannot be accurately determined using a throttling calorimeter.
To measure the quality of very wet steam, other methods such as the separating calorimeter or the steam turbine method can be used. The separating calorimeter separates the steam and liquid droplets and measures the dryness fraction of the separated steam using a throttling calorimeter. The steam turbine method involves passing the wet steam through a turbine and measuring the quality of the steam based on the thermodynamic principles governing the expansion and condensation of steam in a turbine.