scholarly journals Analysis of Feasibility of Peak Cooling Device Used with Direct Air Cooling Unit in Power Plant

2017 ◽  
Author(s):  
XING CAO ◽  
JINFENG ZHAO ◽  
DUANDUAN NIU ◽  
YAN JIANG ◽  
YINGAI JIN
Keyword(s):  
Power Plant ◽  
Air Cooling ◽  
Cooling Device ◽  
Cooling Unit

A Calculation Method of the Optimal Initial Steam Pressure of the Power Plant Based on Model Analysis

2012 ◽  
Vol 516-517 ◽  
pp. 824-829
Author(s):  
Ning Zhao ◽  
Ya Mi Chen ◽  
Hui Jie Wang
Keyword(s):  
Power Plant ◽  
Operating Experience ◽  
Operating Mode ◽  
Steam Pressure ◽  
Work Conditions ◽  
Cooling Power ◽  
Pressure Curve ◽  
Air Cooling ◽  
Systemic Analysis ◽  
Cooling Unit

The shortage of control system for the air-cooling unit is the lack of theoretical guidance and relative operating experience in the selection of operating mode. The mathematical model is built to optimize the initial steam pressure of the air-cooling unit with the method of systemic analysis. Through calculation of air-cooling unit NZK600-16.7/537/537-Ⅰ, the optimal initial steam pressure curves in different work conditions are obtained. The analysis will improve the optimal system-wide control theory of air-cooling power plant. Limitation of the initial steam pressure curve provided by manufactory is also analyzed in this paper.

Qassim Central Power Plant Inlet Air Cooling System

2001 ◽  
Author(s):  
A. Al Bassam ◽  
Y. M. Al Said
Keyword(s):  
Saudi Arabia ◽  
Power Plant ◽  
Cooling System ◽  
Flow Diagram ◽  
Air Cooling ◽  
Process Flow Diagram ◽  
Electric Company ◽  
Start Up ◽  
Air Cooling System ◽  
And Performance

This paper summarizes the experiences with the first gas turbine inlet air cooling project in Saudi Arabia. It will cover the feasibility study, cooling system options, overview, system equipment description, process flow diagram, construction, commissioning, start-up and performance of the project which is currently under commissioning and initial start up at Qassim Central Power Plant (QCPP) owned by Saudi Electric Company (S.E.C.) Central Region Branch.

Recent Advancement on Liquid Metal Cooling for Thermal Management of Computer Chip

2010 ◽  
Author(s):  
Jing Liu ◽  
Yue-Guang Deng ◽  
Zhong-Shan Deng
Keyword(s):  
Liquid Metal ◽  
Thermal Management ◽  
New Technology ◽  
Air Cooling ◽  
Liquid Metal Coolant ◽  
Cooling Device ◽  
Chip Cooling ◽  
Cooling Method ◽  
Liquid Metal Cooling ◽  
Metal Coolant

Efficient cooling of a high performance computer chip has been an extremely important however becoming more and more tough issue. The recently invented liquid metal cooling method is expected to pave the way for high flux heat dissipation which is hard to tackle otherwise by many existing conventional cooling strategies. However, as a new thermal management method, its application also raised quite a few challenging fundamental and practical issues for solving. To illustrate the development of the new technology, this talk is dedicated to present an overview on the latest advancements made in the author’s lab in developing the new generation chip cooling device based on the liquid metal coolant with melting point around room temperature. The designing and optimization of the cooling device and component will be discussed. Several major barriers to prevent the new method from practical application such as erosion between liquid metal coolant and its substrate material will be outlined with good solutions clarified. Performance comparison between the new chip cooling method with commercially available products with highest quality such as air cooling, water cooling and heat pipe cooling devices were evaluated. Typical examples of using liquid metal cooling for the thermal management of a real PC or even super computer will be demonstrated. Further, miniaturizations on the prototype device by extending it as a MEMS cooling device or mini/micro channel liquid metal cooling device will also be explained. Along with the development of the hardware, some fundamental heat transfer issues in characterizing the liquid metal cooling device will be discussed through numerical or analytical model. Future challenging issues in pushing the new technology into large scale practices will be raised. From all the outputs obtained so far, it can be clearly seen that the new cooling strategy will find very promising and significant applications in a wide variety of engineering situations whenever thermal managements or heat transport are needed.

scholarly journals INTENSIFICATION OF HEAT TRANSFER IN TUBES WITH FLUIDIZED LAYER

2020 ◽  
Vol 2018 (1) ◽  
pp. 12-12
Author(s):  
Kirill Zaharov ◽  
Aleksey Bal'chugov
Keyword(s):  
Heat Transfer ◽  
Heat Exchange ◽  
Air Cooling ◽  
Fluidized Layer ◽  
Cooling Unit

It is shown that one of the promising methods of heat exchange intensification in the air-cooling unit is the organization of a fluidized layer.

scholarly journals Improving the performance of the air-cooling unit in the cooling system of a radar

2021 ◽  
Vol 2057 (1) ◽  
pp. 012004
Author(s):  
Yu A Borisov ◽  
V V Volkov-Muzilev ◽  
D A Kalashnikov ◽  
H S Khalife
Keyword(s):  
Heat Exchanger ◽  
Gas Flow ◽  
Cooling System ◽  
Experimental Studies ◽  
Air Cooling ◽  
Axial Fan ◽  
Gas Dynamic ◽  
Cooling Unit ◽  
Calculation Results ◽  
Axial Fans

Abstract The article discusses the issues of reducing the size of the cooling unit of the antenna of a radar station by improving the gas-dynamic processes occurring in the air-cooling unit. The results of the experimental studies of the gas flow in a plate-fin heat exchanger, being blown by one axial fan are presented. The feasibility of changing the number of axial fans for organizing a more uniform flow around the heat-exchange surfaces has been determined by calculation and theoretical methods. The calculation results are confirmed by experimental studies of the air flow in the segment of the heat exchanger, which is provided by a smaller fan.

Forced-Air Diesel Locomotive Cooling: Prediction of Noise and Energy Consumption Under Realistic Operational Conditions

2013 ◽  
Author(s):  
Sebastian Knirsch ◽  
Dietmar Mandt ◽  
Uwe Mauch ◽  
Konrad Bamberger ◽  
Thomas Carolus
Keyword(s):  
Energy Consumption ◽  
Time Domain ◽  
Waste Heat ◽  
Air Cooling ◽  
Diesel Locomotive ◽  
Operational Conditions ◽  
Cooling Unit ◽  
Cooling Module ◽  
Forced Air ◽  
Power Radiation

An important subsystem in most surface transport vehicles is the forced-air cooling module. Under specific operational conditions of the vehicle the cooling system is the major noise source and the component with the largest consumption of energy. A comprehensive time domain simulation model was developed for simulation of the cooling module in a Diesel locomotive under realistic operational conditions. It includes the components that produce waste heat such as the engine, the turbo transmission, the brake, etc. and the cooling module with its fans. Given the operation of the locomotive e.g. in terms of speed vs. time along a track and its load, data from experimental full scale tests agree well with predictions from the time domain model. The onset of cooling fan operation is predicted well, with it their instantaneous energy consumption and sound radiation. Three optimized cooling unit assemblies for the new locomotive Voith Gravita 15L had been developed and pre-assessed utilizing the model and eventually tested in the locomotive under realistic operational conditions. A new thermodynamically advanced cooling unit with aerodynamically and acoustically optimized fans was found superior by approx. 2 dB (A) less sound power radiation and some 30% less energy consumption as compared to the benchmark. It is anticipated that those advantages are even more distinct as the ambient temperature decreases. The work is part of the European FP7 transport research project ECOQUEST.

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