Mechanical Draft Cooling Tower - an overview - ScienceDirect
In the induced draft cooling tower, the fan is installed at the tower outlet. Axial or propeller types of fans are employed. Both counter-flow and cross-flow configurations are possible whereas mechanical draft tower uses a counterflow arrangement.
Investigation on the cooling performance of mechanical draft dry …
2023年6月25日 · He et al [29] also compared the performance improvement of natural draft dry cooling tower pre-cooled with Cellulose7060, PVC1200, Trickle120 and Trickle100, and concluded that the Cellulose7060 with the cooling efficiency range of 44.7–88.5 % was the most promising option for the natural draft dry cooling tower.
Evaporative cooling of water in a mechanical draft cooling tower
2004年1月1日 · To obtain a more precise characteristic of the air velocity distribution in a mechanical draft cooling tower, we introduce the velocity u(z) averaged over the cone cross-section inside the cooling tower, where z is the vertical distance from the fan level. Thus, we can estimate the influence of the nonuniform flow structure on the efficiency of ...
Comparison on the cooling performance of mechanical draft dry …
2023年12月1日 · Miao et al. (2021) found that the heat rejection rates of the natural draft dry cooling tower pre-cooled with normal wet-medium arrangement, A-frame wet-medium arrangement and nozzle spray were 340 MW, 349.5 MW and 341.6 MW, respectively, which increased that of the natural draft dry cooling tower of 246 MW by 38.2 %, 42.1 % and 38.9 % ...
Optimal design and analysis of mechanical draft cooling tower …
2017年10月1日 · A cooling tower is a heat removal device; it is commonly used for circulation of water in power plants, oil refineries, cooling systems, chemical and petrochemical industries. In the present work, the optimization aspects of a mechanical draft cooling tower are considered with six different examples.
Optimal design and analysis of mechanical draft cooling tower …
2017年10月1日 · An objective function to minimize the total annual cost of the cooling tower was formulated by Serna-Gonzáleza et al. (2010) to develop a model of mechanical draft cooling tower by using Mixed Integer Non-Linear Programming (MINLP) technique, while a cooling tower assisted vapor compression refrigeration system was optimized by Sayyaadi and ...
A novel approach for performance assessment of mechanical draft …
2017年7月5日 · The schematic, the pictorial view and the distribution of temperature and humidity ratio measuring points of the cross-flow mechanical draft wet cooling tower are shown in Fig. 2 (a)–(c). This cooling tower has the dimensions of 1.2 × 3.2 × 2.7 m with 2.43 m fill height. The fills are pack-type and made up of PVC material.
Evaporative cooling of water in a mechanical draft cooling tower
2004年1月1日 · In a mechanical draft cooling tower droplets are formed by water spraying nozzles. The radii of droplets depend on the water flow rate and water temperature in the cooling tower: the larger the water flow rate, the smaller sizes of droplets because of the higher pressure drop in the nozzles.
Numerical study on performance of hybrid mechanical draft wet …
2023年2月1日 · A 3D model is conducted to demonstrate the plume, water saving, and cooling capacity of hybrid mechanical draft wet cooling tower (hybrid MCT). The ambient dry bulb temperature, relative humidity, circulating water temperature, and circulating water flow rate are taken as the main research variables for comparative analysis.
Influence mechanism of the louver on the thermal performance of …
2023年7月25日 · To explore the influence of louvers on the mechanical draft wet cooling tower (MCT), the three-dimensional structure of the louver is established outside the air inlet of the MCT. The influence mechanism of louvers on the performance of MCT is expounded under crosswinds through numerical analysis. The main conclusions are as follows. (1)