Sample of Chapter 2 of an Investigatory Project (Steam-Powered Toy Car)
Chapter 2
REVIEW OF RELATED LITERATURE AND STUDIES
Introduction This chapter indicates the ideas, also the history, relevant to the experiment to provide information and further elaborate different standpoints that were the foundation of the proposed study, also on the background study of the different methods and concepts used by other researchers that applies to the present study. In order to develop new method and procedures, careful review of literature and studies must be done for the development of the study. The main purpose of this chapter is to identify and review theories on steam engine and to identify the deficiencies of those theories.
Related Literature In general usage, the term ‘steam’ is the invisible vapor into which water is converted when it boils. On the contrary, it is the cloud of water droplets formed by the partial condensation of this vapor as it is cooled. [1] Steam is the technical term for ‘water vapor’, the gaseous phase of water. Since it is a vapor, it is logical that the density of steam is much less than that of water because the steam molecules are further apart from one another. The space immediately above the water surface thus becomes filled with less dense steam molecules. Water vapor that includes water droplets is described as wet steam. As wet steam is heated further, the droplets evaporate, and at a high enough temperature (which depends on the pressure) all of the water evaporates and the system is in vapor-liquid equilibrium. [2] Steam has many uses. In agriculture, it is used for soil sterilization to avoid the use of harmful chemical agents and increase soil health. The steam is used to sterilize the soil in open fields and/or greenhouses. Pests of plant cultures such as weeds, bacteria, fungi and viruses are killed through induced hot steam which causes their cell structure to physically degenerate. Biologically, the method is considered a partial disinfection. It also has a large contribution of making our
REVIEW OF RELATED LITERATURE AND STUDIES
Introduction This chapter indicates the ideas, also the history, relevant to the experiment to provide information and further elaborate different standpoints that were the foundation of the proposed study, also on the background study of the different methods and concepts used by other researchers that applies to the present study. In order to develop new method and procedures, careful review of literature and studies must be done for the development of the study. The main purpose of this chapter is to identify and review theories on steam engine and to identify the deficiencies of those theories.
Related Literature In general usage, the term ‘steam’ is the invisible vapor into which water is converted when it boils. On the contrary, it is the cloud of water droplets formed by the partial condensation of this vapor as it is cooled. [1] Steam is the technical term for ‘water vapor’, the gaseous phase of water. Since it is a vapor, it is logical that the density of steam is much less than that of water because the steam molecules are further apart from one another. The space immediately above the water surface thus becomes filled with less dense steam molecules. Water vapor that includes water droplets is described as wet steam. As wet steam is heated further, the droplets evaporate, and at a high enough temperature (which depends on the pressure) all of the water evaporates and the system is in vapor-liquid equilibrium. [2] Steam has many uses. In agriculture, it is used for soil sterilization to avoid the use of harmful chemical agents and increase soil health. The steam is used to sterilize the soil in open fields and/or greenhouses. Pests of plant cultures such as weeds, bacteria, fungi and viruses are killed through induced hot steam which causes their cell structure to physically degenerate. Biologically, the method is considered a partial disinfection. It also has a large contribution of making our