A Seminar Report On Working Principal of Steam jet refrigeration system Submitted by Amit Prakash Roll No-1126004 Department of Mechanical Engineering National Institute of Technology, Patna Patna-800005, Bihar (India) Candidate Declaration This is to certify that seminar report entitled Working principle of Steam jet refrigeration system has been prepared by me under the supervision of Dr. Amarnath Sinha Professor …show more content…
Flashing a portion of the water in the tank reduces the liquid temperature. Figure 3.66 presents a schematic arrangement of a steam jet refrigeration system for water cooling. In the system shown, high-pressure steam expands while flowing through the nozzle 1. The expansion causes a drop in pressure and an enormous increase in velocity. Steam flows through the ejector (or sometimes called an eductor or venturi) and creates a low pressure zone in the branch nozzle of the ejector. The low pressure nozzle is connected to a chamber filled with water.As the pressure continues to reduce in the water filled chamber the water begins to boil. This provides the cooling action. The velocity is gradually reduced in the diffuser but the pressure of the steam at the condenser 4 is increased 5-10 times more than that at the entrance of the diffuser (e.g. from 0.01 bar to 0.07 bar).This pressure value corresponds to the condensing temperature of 40°C. This means that the mixture of high-pressure steam and the flash vapor may be liquefied in the condenser. The latent heat of condensation is transferred to the condenser water, which may be at 25 °C. The condensate 5 is pumped back to the boiler, from which it may again be vaporized at a high pressure. The evaporation of a relatively small amount of water in the flash tank (or flash cooler) reduces the temperature of the main body
prevent solution evaporation which is to cool the flask and doesn 't allow the solution to evaporate. The
The boiling flask will be put into a beaker which will contain water that will be warmed up through the process. Then, the condenser will be placed in to the beaker perpendicular to the floor which will make the reflux process available.
Large fans add warm air to the powdery coal and blow it into the boiler. The boiler has miles of tubes filled with high quality water. Once
A cold, wet pipe cleaner was then added to the top of the reaction flask to keep the column cold which caused no vapors to rise into the column.
This is the same process as in distillation that involves evaporating a liquid into a gas phase, then condensing the gas back into a liquid
The release or agitation of the water would release the co2 causing the water to rise and evaporate.
The steam supply is cut off, then the cold water is sprayed into the cylinder and then the piston moves back down. James Watt the improver of the Early Steam Engine was born in Greenock on the 18th of January 1736. In 1775 he vastly improved the original concept of the steam engine. Watt and his partner Matthew Boulton set up a factory. The steam engine works like so: the heat was converted into mechanical energy. The way that Watt created the changes to the steam engine is adding two cylinders. The piston is at the bottom for the cylinder. The steam creates pressure which forces the piston upwards. The stream is then cut off just like it was before when Newcomen invented it. Then a pipe that leads to the second cylinder which is the condenser, is then opened and cools down the stream. Then it creates the negative pressure which forces the piston to come back down. Then the steam engine doesn’t have to cool down if we are using this process.
A experimental set up has been developed for refrigeration circuits of automobile air conditioning systems. The experimental set up includes a variable capacity compressor and a thermostatic expansion valve in addition to the evaporator and micro channel parallel flow condenser. An experimental bench made up of original components from the air conditioning system of a compact passenger vehicle has been developed in order to check results from the model. The refrigeration circuit was
Are you thinking about acquiring a technical career with great potential? Here is something for you to consider. An HVAC Technician position in New Jersey is a stepping stone to a wonderful career with excellent potential for your future. The heating, air conditioning, and refrigeration technician is trained to work on heating, cooling, and refrigeration systems that are important to the air quality in buildings. After acquiring training, you will work in commercial buildings, hospitals, schools, factories, and residential properties to handle issues with the air quality in building. However, HVAC training is important in New Jersey. Today, employers prefer to hire an individual with training in this very complex field. Here is more on how
The vaporized molecules then pass through the condenser upon which the molecules cool off and return to their
Cooling systems or air conditioning systems are going to be in detail description in the following report not only because of their high energy consumptions; these systems also have huge impacts on the
Can the refrigeration be considered as an artificial cold person cannot live without? Many different authors had the ability to write effectively where it might be important and useful writing skill for the authors to possess. In the beginning, Steven Johnson’s who was a British-American, and he had published a book called, “How We Got to Now.” In the novel, Johnson presented six- part series where it had amazing explored legacies that passed on great ideas. In each of the chapter titles had six sessions are: Glass, Cold, Sound, Clean, Time, and Light. Johnson had included many of the famous historical characters such as “Thomas Edison, Galileo Galilei, Mark Zuckerberg, and more.” Throughout most of the book, he had quite often brought different type of inventions into his writing. He liked to first introduce his style of writing by adding interesting facts and histories, so this way he could reveal his dialog in an effective accomplished for the readers to understand the writing concepts. One of the unique aspect Johnson’s mentioned in the chapter “Cold” was on the invention refrigerator. The refrigerator is one of the one history, inventions that have small stories from each author 's’ styles of writing throughout no certain specific ideas.
Condenser: The condenser cools the ethanol vapors to a temperature that is less than the boiling point of the ethanol. Thus, it condenses the vapors to liquid. Condensers may be cooled by the surrounding air temperature, moving air (a fan) or water. With a water cooled condenser the cool water will be pumped through a coil or around the exterior of the tube that carries the ethanol vapors. Different types will utilize various methods. The key is to chill the vapors so that they drip into a collection container versus escaping into the atmosphere.
The mixture of substances is placed in the flask and heated. Ideally, the substance with the lowest boiling point vaporizes first (see vaporization), the temperature remaining constant until that substance has completely distilled. The vapor is led into the condenser where, on being cooled, it reverts to the liquid (condenses) and runs off into a receiving vessel. The product so obtained is known as the distillate. Those substances having a higher boiling point remain in the flask and constitute the
According to "How Things Work in Your Home" by Time-Life Books, a heat control lever rotates a cam that regulates the opening between the contacts located on the thermostat. A steam valve attached to a vapor chamber located above the heating element opens up when the correct temperature is reached and water enters the chamber and is converted into steam. From there, the water is converted to steam, which exits from the soleplate at the bottom of the iron through the ports. On the top of the iron, a pump draws water from the reservoir and sprays it through the nozzle.