Field experience of UHPFRC durability in an air cooling tower

2010 ◽  
pp. 727-734
Author(s):  
F Toutlemonde ◽  
V Bouteiller ◽  
A Deman ◽  
G Platret ◽  
A Pavoine ◽  
...  
Keyword(s):  
Field Experience ◽  
Cooling Tower ◽  
Air Cooling

Field Experience of UHPFRC Durability in an Air Cooling Tower

2013 ◽  
pp. 697-710
Author(s):  
François Toutlemonde ◽  
Myriam Carcasses ◽  
Maxime Lion
Keyword(s):  
Field Experience ◽  
Cooling Tower ◽  
Air Cooling

The Rod Force Law Analysis of 600MW Air Cooling Tower

2014 ◽  
Vol 945-949 ◽  
pp. 1135-1138
Author(s):  
Tao Liang ◽  
Chun Ling Meng ◽  
Yang Li ◽  
Xiu Hua Zhao
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Axial Force ◽  
Optimization Design ◽  
Cooling Tower ◽  
Air Cooling ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
The Cost

The finite element analysis of large air cooling tower was carried out using ABAQUS. On the basis of strength above,8 types of the axial force are analyzed and summarized, find valuable rules, and put forward the further optimization design. So that it can satisfy the strength and stability of air cooling tower, the structure is more reasonable, reduce weight, reduce the cost.

A Novel Free-Cooling Scheme for Combustion Turbine Inlet Air Cooling

2008 ◽  
Vol 130 (1) ◽  
Author(s):  
Montaser M. Zamzam ◽  
Abdalla M. Al-Amiri
Keyword(s):  
Cooling Tower ◽  
Cold Water ◽  
Water Circulation ◽  
Circulation Loop ◽  
Secondary Source ◽  
Air Cooling ◽  
Cooling Mode ◽  
Turbine Inlet ◽  
Free Cooling ◽  
Cooling Coils

Free cooling is a well-known concept in the HVAC industry in which the cold water produced by a cooling tower is used directly to satisfy the requirement of the cooling load without assistance by the chiller; this concept, however, is not reported in the turbine inlet air-cooling applications. Free cooling works well as long as the ambient wet bulb temperature (WBT) is sufficiently low to produce cold water at the required temperature, but once WBT reaches its threshold value (hence, free-cooling mode is ceased) and the chiller kicks off working under its normal mode of operation, i.e., free cooling is either enabled or disabled. The proposed system in this paper provides, in addition to the above modes of operation, a novel mode that utilizes the cooling tower as a primary source of cooling simultaneously with the chiller that serves as a secondary source at elevated WBT. This new feature significantly reduces the yearly operating hours of the chiller and possibly its size, depending on the desired inlet air temperature, actual weather conditions, and design WBT. Chiller size can vary between 0% and 100% as compared to a similar classical chiller system with significant reduction in the operating hours. The proposed system consists basically of chiller, cooling tower, cooling coils, interconnecting piping, and controls. The arrangement of the system equipment changes with the operation modes in two configurations: dual water circulation loops and single water circulation loop. In the dual-loop configuration, the system has two separate loops such that the evaporator and the cooling coils are tied in one loop, while the cooling tower and condenser in the other loop; whereas in the single-loop configuration, all equipment is connected in series in one water circulation loop. This paper presents the major equipment and characteristics of the novel chiller scheme. In addition, the study outlines the potential reduction in the chiller load, size, and operating hours under a generalized weather envelope. The paper portrays the feasibility of using the proposed cooling scheme for turbine inlet air cooling.

scholarly journals Analisi Pembangkit Listrik Tenaga Mikrohidro Menggunakan Sistem Distribusi Air di P.T. Astra Honda Motor Plant 5 Karawang

2020 ◽  
Vol 3 (1) ◽  
pp. 1
Author(s):  
Deni Almanda ◽  
Rahmat Kartono
Keyword(s):  
Cooling Tower ◽  
Air Cooling

Energi listrik dan merupakan salah satu kebutuhan vital yang tidak bisa dipisahkan bagi masyarakat pada umumnya maupun perusahaan industri khususnya. Maka dari itu mendorong pelaku usaha untuk melakukan suatu pengolahan energi yang beretujuan meningkatkan efisiensi energi dan juga mencari sumber energi yang terbarukan seperti air, angin, surya dan lain-lain.Pembangkit Listrik Tenaga Mikrohidro (PLTMH) merupakan salah satu energi listrik alternatif yang mempunyai beberapa kelebihan diantaranya tidak memakai bahan bakar dan sumber energi didapat dengan gratis. Menurut Larasakti (2012:245) jadi pada prinsipnya dimana ada air mengalir dengan ketinggian minimal 2,5 meter dengan debit 250 liter/detik, maka disitu ada energi listrik.Pada Pembangkit Listrik Tenaga Mikrohidro (PLTMH) PT Astra Honda Motor menggunakan generator dengan output 1100 watt serta sumber energi memanfaatkan aliran sirkulas air cooling tower dengan debit 2000 lpm serta head total 7 meter. Berdasarkan data tersebut didapatkan potensi energi sebesar 1152,82 watt. Pada aktualnya PLTMH menghasilkan energi sebesar 950,4 watt. Berdasarkan data tersebut dapat kita simpulkan bahwa PLTMH tersebut hanya menghasilkan 83,16% dari kapasitasnya.

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