This Experiment Marcet Boiler Engineering Essay

This Experiment Marcet Boiler Engineering EssayIn This test a Marcet tympanum was used to conduct the congenership between a modify pressing and temperature of water in the range of 0-14 bar indicating in the gauge and also to determine the temperature of a body when being heated or cooled. When the temperature adjoins pressure also increases in this case the relationship between pressure and temperature is directly proportional. self-assertion was made that the temperature is uniform throughout the boiler and the outside surface temperature of the boiler is the same as the steam temperature. Theoretic all(prenominal)y, the values from the steam table should almost be the same with the recorded values. In this case, if the values are not the same then this is due to error that was made in the experiment.The experiment was performed carefully and all procedure was followed to get undefiled result. First of all the startup procedure is to fill water in Marcet boiler and the wa ter level is half of the boilers height. accordingly the supply switch was turned on. It is important to remove the air in the boiler in this case the valve would be open from the start up of the experiment When the temperature increases to 100C, the steam is allowed to come out from the valve for few seconds and close the valve. Record the steam temperature and pressure reaches 14 bars.IntroductionThermodynamics is the study of heat and in relation in other form of work and energy between a system and its surrounding in this case the property in the system entrust change.Generally holy man gas obeys the equation of state which is showed below.PV=When energy is increased in the water .the molecules in the water that is increasing will enable the molecules to thresh from the surface until it is in equilibrium (boiling point). The state of equilibrium depends on the pressure in the surface of the water. When the pressure is low it is easier for the molecules to leave the water wit h less energy.The Marcet boiler is used to investigate the relationship pressure and temperature in saturated steam for comparison with the steam table .the experiment slope (dT/dp) is obtained water at saturated temperatureTheoryThe Marcet boiler is used to investigate the between pressure and temperature of saturated steam, in equilibrium with water, at all pressures between atmospheric and a 14bar An ideal gas can be characterized by three state variables absolute pressure (P), volume (V), and absolute temperature (T). The relationship between them may be deduced from energizing theory and is called the Ideal Gas law. The ideal gas law was originally determined empirically and is simply.and hf + hfg = hg hfas vg vfIn which, vf = peculiar(prenominal) volume of saturated liquidvg = specific volume of saturated dehydrationhf = enthalpy of saturated liquidhg = enthalpy of saturated vaporhfg = latent heat of vaporizationEquipmentProcedureFill up water half the height of the boiler Ensure the valve is openedConnect the boiler to the galvanizing switchThe boiler is heated up to 100c and the steam will come out of the open valveClose the valve after 1 transactions to ensure that the air in the boiler is out and continues heatingWhen the pressure start rising , start the stop watchRecord all the temperature readings at different pressure with timePressure must not exceed 14 barDiscussionThe theory can be compared with the experiment where pressure and temperature are directly proportional to each otherWhen a water is heated in a container to a boiling point the tempreture increases and presussre also increase in the case where the steam is closed in a cylinder, Their will be internal pressure in the container and also internal forces. it is shown in the graphical record that tempreture is relatively proportional to pressureIn the table error was zero because the decreasing tempreture of the boiler was not noted down therefore erro is unknown . take for granted the decreasing tempreture is considered the the error percentage would now exceed 10% because the experiment was done in a closed system so no bill of volume will escapeIt was important to remove the air from the boiler to avoid flaws of readings .Marcet boiler is used in plant steam industries, power plant, readiness utensil and so onConclusionin the experiment, it shows from the table and theory that temperature and pressure is relatively proportional in balance with waterDisgracing some miserable faults, this experiment can be consider successful, to improve the result of the experiment, it should be carried out at room temperature switching off all the air-conditions, and also by repeating the experiment and taking the average value. If some insulation were kept on theMarcet boiler to reduce heat loss, the experiment could be more accurate