IMPROVEMENT IN PERFORMANCE OF COOLING TOWER OF THERMAL POWER PLANT (original) (raw)
Effciency of cooling tower depending on operating parameters of the power plant cooling system
Technics Technologies Education Management, 2019
Analysis of thermal power plants from the aspect of energy efficiency and their environmental impact is the imperative of the present. Therefore, the operation of the cooling tower, which is a part of the cooling system for technological water in the thermal power plant, is analyzed. The simulation model is based on data from normative testing and project documentation. The aim is to determine the effect of selected inlet parameters on the ef ciency of the cooling tower in the GE Gate Cycle software, via the "design" and "off design" simulation models. The conducted research showed that the analyzed parameters in uence the efficiency of the cooling tower and technological water cooling system. Consequently, simulations and impact analysis were performed with the simultaneous change of more operating parameters. A clearer picture was obtained of the interaction between the observed inlet parameters, thus creating the possibility of increasing the efficiency of the cooling tower and the technological water cooling system as a whole.
Performance Analysis of Cooling Tower in Process Industry
International Journal of Advance Research and Innovative Ideas in Education, 2017
The performance of Cooling Towers is of massive importance for a large number of process industries that must depend upon Cooling Towers as their only means of waste heat rejection. But still, the performances of Cooling Towers have been problematic. Normally they are used to dissipate heat from heat sources to the heat sink. The cooling of hot liquid wastage and process water is required from reuse and environmental point of view. The effectiveness of Cooling Tower relies on flow rates of air and water temperature. In this evaluation of the performance of Cooling Towers the cooling tower located at one of the unit of M/s. Aarti Industries Ltd. The aim is to analyze the performance of Cooling Tower and give the optimum solution that would reduce the monitoring input.
Experimental Study of the Performance of Cooling Tower
Cooling tower is an essential component of air conditioning plant, chemical plant etc. It is used to reduce the temperature of hot water stream by using outside air and thus heat is rejected to atmosphere .This paper includes the working principle of cooling tower and a set up is fabricated and various parameters related to cooling tower is calculated i.e. range, approach, effectiveness and evaporation loss. Validation of practical model is done using empirical relation. Various equations i.e. Modified Apjohn equation, Modified Ferrel equation and Carrier equation are provided. Carrier equation is used for determining vapour pressure and thus humidity ratio and finally which can be used to determine evaporation loss.
Experimental and Analytical Investigation to Improve the Efficiency of Industrial Cooling Tower
Cooling towers make use of evaporation whereby some of the water is evaporated into a moving air stream and subsequently discharged into the atmosphere. As a result, the remainder of the water is cooled down significantly.The process parameters such as inlet air rate, water flow rate and fills porosity have more influence on Thermal performance of cooling tower. The Temperature of outlet water is maintained nearest to inlet air wet bulb temperature to obtain the best Thermal Performance of cooling tower. So current work is to obtain and maintaining outlet water Temperature nearest to inlet air wet bulb temperature. The cooling tower fill is the most critical component in the operation of the cooling tower. The function of the tower fill is to provide a maximum contact surface between the water and the air to promote evaporation and heat transfer. Cooling tower fill accelerates the transfer of heat from circulating water by maximizing the contact area between water and air. So inlet water flow rate, inlet air rate and fill porosity are important factor to maintain the outlet temperature of water nearest to inlet air wet bulb temperature.
PERFORMANCE ANALYSIS AND EFFICIENCY IMPROVEMENT OF COOLING TOWER AT MTPS-I
IRJET, 2022
In thermal power station one of the main part is condenser which cools the hot water. When cooling the hot water, it becomes cold water. The how water temperature is reduced by the cooling tower. When hot water enters into the cross flow induced draft cooling tower and sprayed by the nozzle, so that hot water is converted into cold water. The effective cooling water is depends upon wet bulb temperature, dry bulb temperature, size and height. This project deals with analysis of cooling tower which is one of the deciding factors used for the power plant efficiency.
Experimentation on Cooling Tower: Material Balance, Efficiency and Packed Height
https://www.ijrrjournal.com/IJRR\_Vol.4\_Issue.1\_Jan2017/Abstract\_IJRR003.html, 2017
Operation of heat exchangers, condensers and many reactors involving heat changes calls for sound supply of water at adequate temperature. Cooling towers thus are integral part of utility section, sometimes they are the most important one. Humidification is the process in which the moisture or water vapor or humidity is added to the air without changing its dry bulb (DB) temperature. Cooling and humidification processes are one of the most commonly used air conditioning applications for the cooling purposes. Natural circulation, forced circulation and induced draft cooling towers are used according to requirement as they have their own advantages and disadvantages. Natural draft towers have least operating cost and operate with natural circulation of air. Forced and induced draft towers need electricity for blowing or forcing air. In the current investigations efficiency of forced draft cooling tower is analyzed. Also material balances and packed height of column are computed.
To Improve Thermal Efficiency of 27mw Coal Fired Power Plant
IJMER
Booming demand for electricity, especially in the developing countries, has raised power generation technologies in the headlines. At the same time the discussion about causes of global warming has focused on emissions originating from power generation and on CO2 reduction technologies such as: (1) Alternative primary energy sources, (2) Capture and storage of CO2, (3) Increasing the efficiency of converting primary energy content into electricity. In the dissertation, the thermal efficiency of the power plant is improved when Control of furnace draft (nearer to balanced draft). Oxygen level decreases percentage of flue gases. Above this level heat losses are increases & below this carbon mono-oxide is formed. Steam power plant is using fuel to generate electrical power. The used of the fuel must be efficient so the boiler can generate for the maximum electrical power. By the time the steam cycle in the boiler, it also had heat losses through some parts and it effect on the efficiency of the boiler. This project will analyze about the parts of losses and boiler efficiency. to find excess air which effect heat losses in boiler. By using the 27 MW coal fired thermal power plant of Birla Corporation Limited, Satna (M.P.) the data is collect by using types of Combustion & heat flow in boiler. Result of the analysis show that the efficiency of boiler depends on mass of coal burnt & type of combustion .This study is fulfilling the objective of analysis to find the boiler efficiency and heat losses in boiler for 27 MW thermal power plant of Birla Corporation Limited, Satna (M.P.)
Thermo-Economic Study of Cooling, Heating and Power System Implemented for Indonesian Power Plants
Most highly efficient Indonesian power plants operate with a combined cycle. Other cycles such as Rankine cycle, Brayton cycle and Diesel cycle are still operated in many power plants. One-half to twothirds of the energy input to a typical generation system is wasted as heat, rather than turned into electricity. It motivates for developing cooling, heating and power systems. Electric power generating systems are located near a heat load that utilizes the heat rejected from the generation equipment to improve their efficiency. Gas turbines are a great machines producing electric power. Their power output increases when ambient temperature decreases. This gives opportunity to sell more electric power when the air before entering compressor is cooled. High temperature of exhaust gas from the gas turbine also gives recovery opportunity by using heat recovery steam generator (HRSG) for running steam power plant and also as waste heat from HRSG for generator of an absorption chiller. Simulation was conducted based on data near to main data of the new power plant PT Bekasi Power Jababeka Cikarang. The results confirm that cooling of air before entering compressor in a combined cycle power plant causes the net power and thermal efficiency of the power plant increase. These advantages should be paid with more investment such chiller unit and energy consumption for the chiller unit. The HRSG without additional firing will give better efficiency even though the net power generation from the power plant decreases. An analysis involving thermo-economic criteria also proven that implementation of air inlet cooling in gas turbine system gives financial benefit. The best alternative chiller system is that using combination of vapor compression chiller and single-effect vapor absorption chiller to give highest financial benefit. All vapor compression chiller system is more convenient in their implementation, besides it gives high financial benefit. All vapor absorption chiller system is not competitive alternative, additionally it need wider space. This study result confirms that the cooling, heating and power system is applicable for other existing Indonesian power plant from thermodynamic and economic aspects.
Noble International Journal of Scientific Research ISSN(e): 2521-0246 ISSN(p): 2523-0573 Vol. 04, No. 08, pp: 73-79, 2020, 2020
With the help of energy and exergy analyses of induced draught counterflow wet cooling tower of the thermal power plant Jamshoro and the lakhra coal power plant is demonstrated through employing EES (engineering equation solver) in this paper. First the model was made and then the simulation and the validation, with the help of very rudimentary and basic equations, were performed successfully by utilizing given operating parameters in order to evaluate and calculate the cooling tower performance and other required parameters. The inlet air wet bulb temperature plays tremendous role in causing the change in water and air outlet temperature, cooling tower effectiveness and exergy efficiency and destruction. With the increasing of wet bulb temperature there is direct effects on effectiveness and exergy efficiency of the cooling tower. The mass flow rate of water to air ratio is in the range of 2.47 for the thermal power plant and 2.09 for the lakhra power plant and the ratio is changed with the variation of wet bulb temperature of inlet air. The evaporation loss was very negligible as compared to the flow rate of water.
The Influence of Transient Phenomena in Cooling Tower and Condenser on the Efficiency of Power Plant
The objective of the paper is to present the analysis of experimental data on the transition phenomena of mass and heat transfer in the natural draft cooling tower connected with the condenser in the unit and the influence of both on the unit's performance. The effectiveness of heat transfer in the cooling tower influences the saturation temperature in the condenser, which affects the load of the steam turbine and consequentially the efficiency of the unit. The analysis presented in the paper is based on the results of simultaneous measurements of the unit's performances, the thermodynamic variables in the cooling tower and the parameters of the condenser. The results of measurements as well as the results of analysis are presented graphically. The reconstruction of the cooling tower was performed for it's bad operational characteristics. After reconstruction, the measurements of cooling tower, condenser and performance tests of unit were repeated. The analysis was carri...