Thermodynamics is primarily concerned with heat transfer, energy transfer and conversion between heat and work and is also applied to describe the phase change of a substance, such as condensation and evaporation.1.1 Determination of steam qualitySaturated water is water in the condition in which any amount of energy put into the water or absorbed by the water can cause the formation of a mixture at two water-steam phases. In this case, the latent heat, or enthalpy of evaporation, is called the energy required to transform the water into steam. Steam quality refers to the weight percentage of steam in a mixture of steam and water, i.e. saturated dry steam does not contain water. (Babcock & Wilcox Co., 2007). Saturated steam, which is steam in equilibrium with water, can only exit at a specific pressure and corresponding temperature. If a change in temperature and pressure is made, the state of the steam will be affected. For example, if the temperature decreases or the pressure increases, a quantity of steam will condense and then wet steam will form. Otherwise, a significant pressure drop can transform saturated steam into superheated steam. The relationship between water and steam can be found from the temperature-entropy diagram. It can be realized from the TS diagram that the condition of being a vapor-water mixture lies somewhere between that of saturated water and that of saturated vapor. If a change in pressure or temperature of the water-steam mixture can cause the mixture to be saturated water or saturated steam. Obviously, when there is any amount of moisture present in the steam, this will contribute to the energy consumed or heat used, which will increase the temperature of the humidity to that of the steam. (Babcock & Wilcox Co., ...... middle of paper ...... be moved by the difference in air density. In this case, the convection is called natural convection. The rate of transfer of heat of forced air convection is basically higher than that of natural convection This makes the surface temperature in forced convection is lower than that of natural convection. As mentioned before, the heat transfer due to radiation is different. Convection as well as heat transfer due to radiation can be seen as the result of changes in the electronic configurations of atoms or molecules (Cengel, 2007) because heat transfer due to radiation does not require the presence. of a passing or heat transfer medium, it is faster than heat transfer due to convection For example, in the experiment, heat transfer due to radiation occurred both in the. room 1 and in the room. 2.