After the initial trail run of the experiment is done, the bath vessel is filled with the bath liquid of choice i.e., Water or Motor Oil till all the coils inside the vessels are submerged. Heat input is given to the bath liquid using the dimmerstat provided, by turning the knob to a desired value of temperature, say 40 0C. Allow the bath liquid to gain temperature gradually. Using the auto transformer put the motor into motion by fixing a value of rotation on the scale. This motor rotation allows the impeller to turn inside the liquid.
It also cools the two electrodes, and flushes away the products of machining from the gap. The electrical resistance of the dielectric influences the discharge energy and the time of spark initiation (Kuneida et al., 2005). If the resistance is low, an early discharge will occur and if it is large, the capacitor will attain a higher value of charge before the discharge spark occurs. The tool has to be advanced through the dielectric towards workpiece as it is spark-eroded. A servo system is used to compare the gap voltage with a reference value, and ensure that the electrode moves at a proper rate to maintain constant spark gap and if necessary to retract the electrode if short circuiting occurs.
The humidity control unit has the capacity to collect the molten water from the ice of cooling chamber. It contains a heater and a 12V dc fan. When humidity sensor sense the humidity level below 70% this unit automatically starts. It runs no later than the humidity level reaches at 75%. There is an exhaust fan on the outside of the baby chamber which ensures the continuous flow of air.
Whose function is to transform the heat from one fluid or solid to another one till that time when the temperature of both the parts become equal. In the heat exchanger the working fluid is separated by the wall which controls the flow of both the fluids and help them to be separated by each other. In present time the heat exchangers are used in the every industry of science and technology like in the chemical plants , boilers, refrigeration system, air conditioning system, domestic A.C system, medical Science,
It is a reaction turbine and only a part of the available head is converted into the velocity head before water enters the runner. The pressure head decreases as the water flows over the runner blades. The static pressure at the runner exit may be less than the atmospheric pressure and as such, water fills all the passages of the runner blades. The change in pressure while water is moving over the blades is called “reaction pressure” and is partly responsible for the rotation of the
It involves liquid and vapour phases. The liquid feed enters the distillation column and is subjected to heat, which vaporises a fraction of feed. The vaporised product goes through a reflux and together with the liquid feed is heated up. This increases the purity of the distillate; usually the product chemical industries desire. As a chemical engineer designated to design a distillation column for IPA recovery, the design statement developed is a follows: “To design a tray distillation column to recover 100% Isopropanol with at least a purity of 30% and a column diameter of at least 1 foot.” 4.1.2.
The mixture of the oil and excess solvent was poured into a weighed round bottomed flask. The flask was fitted to the rotary evaporator and immersed in the heating medium until all the mixture was totally immersed. The temperature of the rotary evaporator was set slightly above the boiling point of the solvent. Then, the mixture was rotated slowly to prevent the mixture to evaporate out from the instrument. The vacuum pump was switched on to suck the evaporated volatile solvent.
This type of water heater is also called as the demand type water heater since hot water is produced only when it is required. Conventional water heaters have a storage tank that has the water and when the appliance is switched on, the water gets heated and
The acid gas is fed into a scrubber to eliminate entrained water and liquid hydrocarbons. The gas then enters the bottommost of absorption tower. The sweet gas leavings at the top of tower. The renewed amine or lean amine enters at the top of this tower and the two streams are communicated counter currently. In this tower, carbon dioxide and hydrogen disulfide are engrossed with the chemical reaction into the amine haze.
If the airflow in the dryer becomes obstructed by a plugged or improperly installed vent, bad drum seals, or a defective blower, the high-limit thermostat cuts power to the heating element. This means there are other problems with your dryer. In conjunction with thermostats, dryers use thermal fuses as a safety device. Some dryer models may have two thermal fuses to detect extreme heat. If the hi-limit thermostat fails to cut power to the heating element and the element gets too hot, the thermal fuse blows and cuts all power to the dryer.