Optimization And Enhancement Of Hybrid Cooling System

For the 300 MW steam plant currently under analysis, steam is required at 723 K (450 0C), 10.34 MPa and a mass flow rate of 330 kg/s. The steam turbine extracts 312.5 MW of power at 84 percent adiabatic efficiency. With the generator loss at 4 percent, the electrical output is 300 MWe. A mechanical pump is used to pump the water into the heat exchanger where it absorbs the heat from the helium turbine exhaust before entering the steam turbine. Design point specifications are given in Table 4-1.

This project is planning to install 2×300MW units, The configuration of unit is Pulverized coal fired boiler with condensing steam type turbine, and Limestone-gypsum wet Flue Gas Desulphurization system adopted.

The condenser then cools down the steam and it turns to liquid. (drericz, 2018, para. 24)

Cooling water is used to cool a tar mixture from 85 ᵒC to 73 ᵒC in a double pipe heat exchanger. The water enters the exchanger at 18 ᵒC and leaves the exchanger at 39 ᵒC and flows co-current with the tar mixture. The outside diameter of the inside pipe is 6 cm with a wall thickness of 2.9 mm. Stagnant dirt films have formed on both sides of the pipe, both with a wall thickness of 1 mm. If the heat exchanger is 190 m long, calculate the heat flow per hour if the water is in the centre

A turbine system simply supplies a large amount of air (via turbine) to the gun; high pressure is not necessary. The turbine is typically powered by a high-speed electric motor. The heat from the turbine eliminates up to 95% of the moisture in the air. This type of system is sold with a turbine, hose, and spray gun. Most of the cost is from the spray gun and not the turbine due to the machining requirements of the

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 main reasons for generating steam are to; use it to generate electricity in a power plant. The steam is pressurised and comes into contact with a turbine which then is forced to turn and when this is done around a magnetic field, electricity is formed. Another use for steam is to use it as a heat transfer material in the process industry. The steam that is generated inside a boiler will be transported into a heat exchanger, this then gives off its heat to allow the heating of the process fluid. The steam from both methods will condense when it gives up most of its energy and can be reused in the system in an attempt to save raw water usages.

At times, a commercial building or other large area requires adequate ventilation and cooling to maintain a comfortable, safe environment for people, plants or animals. Selecting the right method to obtain this goal is tricky, though, as some methods produce excessive noise while running. In years past, there was no solution to this noise issue, but today, you can turn to quiet cool evaporative coolers to perform their necessary tasks effectively without noise being an issue. Just keep reading to discover a number of practical reasons to purchase and utilise these coolers to control your environment.

“Evaporation fog forms as a result of the mixing of two unsaturated air masses.” The steam fog means when the colder air passes over the warm air. It is kind of evaporation fog (“Net Industries”).

steam, so that a condenser cools and condense it to a high pressure liquid. However, with the

This method of cooling techniques is theoretically able to reduce temperatures from 50 to 27 degrees Celsius. The bidding committee also proposes to use such cooling technologies in fan-zones, training pitches and walkways between metro stations and stadiums.

From the graph, it is clear that the cooling capacity increases with increase in the air velocity. Also, at higher water flow rate the cooling capacity is higher. This trend can be attributed to the fact that at higher flow conditions, the convective heat transfer flux is higher resulting in a higher heat transfer rate. The mass transfer is higher as the humid air is removed from the column at a much faster rate owing to the high flow rates; this helps in stripping of water from the liquid phase. Higher mass transfer would result in more energy being gained by air in the form on latent heat. The curve for lowest water flow rate (28.9L/hr) shows the largest slope between the 2nd and 3rd data points. This can be explained by the fact that the slow water flow rate results in a high residence time in the column that provides air sufficient time to strip.

The water then condenses as it passes through the turbine and out of the exhaust. Then passes into the water extractor. The extractors job is to remove all the moisture out of the air in the system, ice may form as the the air tends to come out of the turbine at 0c, so a sensor checks the temperature to make sure that ice cannot form. If it becomes too cold, hot air can be directed from the bleed air system through a valve.

Heating might happen inside the chopper so that heat sink can be attached for proper dissipation of heat. Also to get more heat concentrated equally on the module, a metal plate is used which spreads the heat. To provide external support all the elements are fitted inside a box. Heating, an important phenomenon is provided with the help of byproducts from both the industries and domestic areas and in absence of byproduct, candle flames or woods can be used as the source. It is provided to the Peltier modules which are connected to the cooling source. Cooling can be provided by chilled water or ice storing into a metal tray or heat sink can be fixed with the Peltier modules and use of a fan to dissipate the heat and provide cooling. This arrangement starts producing voltage in some time and that too without making any noise. Also, the rigid construction can wield a much and the Peltier modules itself can easily work for a long life span without any failures.

Steam engines are external combustion engines, where the working fluid is separated from the combustion products. Non-combustion heat sources such as solar power, nuclear power or geothermal energy may be used. The ideal thermodynamic cycle used to analyze this process is called the Rankine cycle. In the cycle, water is heated and transforms into steam within a boiler operating at a high pressure. When expanded through pistons or turbines, mechanical work is done. The reduced pressure steam is then exhausted to the atmosphere, or condensed and pumped back into the boiler.