scholarly journals Gas Turbine Performance Improvement Direct Mixing Evaporative Cooling System American Atlas Cogeneration Facility Rifle, Colorado

1990 ◽  
Author(s):  
J. P. Nolan ◽  
V. J. Twombly
Keyword(s):  
Gas Turbine ◽  
Performance Improvement ◽  
Return On Investment ◽  
Cooling System ◽  
Evaporative Cooling ◽  
Turbine Performance ◽  
Potential Problems ◽  
Evaporative Cooling System ◽  
Media Systems ◽  
And Performance

This paper discusses the design, installation, operation and performance of a direct mixing evaporative cooling system as an alternate to conventional wetted rigid media systems used for gas turbine power augmentation. The economic return on investment, the ease of installation, and the potential problems as they apply to a typical gas turbine based cogeneration facility are discussed and analyzed. Especially of interest is the low capital cost of this system, approximately one fourth that of a conventional system.

Important Parameters and Performance Testing of Evaporative Inlet Air Cooling System for Gas Turbines: A User’s Experience

2006 ◽  
Author(s):  
Hemant Gajjar
Keyword(s):  
Gas Turbine ◽  
Gas Turbines ◽  
Cooling System ◽  
Low Cost ◽  
Evaporative Cooling ◽  
Performance Testing ◽  
Air Cooling ◽  
Air Cooling System ◽  
Evaporative Cooling System ◽  
And Performance

Inlet Air Cooling of gas turbine engines for power augmentation has seen increasing application over the past decade. Evaporative inlet air cooling has been particularly preferred by the Gas Turbine operators due to its low cost and ease of installation. Two of the important considerations for a GT operator are the proper selection of the EIAC and, after installation, its proper testing to assure required performance. This paper is based on the experience, as a user, of selecting a inlet air cooling system and then implementing a Fogging type Evaporative Cooling system. It highlights the important parameters related to evaporative cooling system and in particular fogging, and how the site testing can be handled to ensure proper performance. Concepts of ‘Conversion Effectiveness’ and ‘Evaporation Effectiveness’ have also been introduced in this paper.

Inlet-Temperature Suppression of Inlet Air for Gas-Turbine Compressors by Evaporative Cooling of Water Spray

2002 ◽  
Author(s):  
Richard R. Trewin
Keyword(s):  
Gas Turbine ◽  
Cooling System ◽  
Evaporative Cooling ◽  
Inlet Temperature ◽  
Water Spray ◽  
Water Droplets ◽  
Evaporative Cooling System ◽  
Gas Turbine Compressor

An evaporative cooling system for lowering the inlet temperature of a gas-turbine compressor is described. This system uses the latent enthalpy of evaporation for injected water droplets to decrease the enthalpy of the air. The requirements for compatible operation between this system and the compressor are given.

Study of the Thermodynamic Processes and Performance Evaluation of Self-Circulation Evaporative Cooling System in Hydro-Generator

2014 ◽  
Vol 488-489 ◽  
pp. 979-982
Author(s):  
Hai Hong Dong ◽  
Lin Ruan ◽  
Shu Qin Guo ◽  
Rui Cao ◽  
Jin Xiu Chen
Keyword(s):  
Performance Evaluation ◽  
Power Loss ◽  
Heat Load ◽  
Cooling System ◽  
Evaporative Cooling ◽  
Second Law Of Thermodynamics ◽  
Evaporative Cooling System ◽  
Cooling Technology ◽  
And Performance ◽  
Thermodynamic Processes

The self-circulation evaporative cooling system (SECS) of stator collector ring is a kind of new cooling technology, utilizing the evaporating of work fluid to cool the stator collector ring of hydro-generator. In this article, the thermodynamic processes of SECS of stator collector ring were analyzed by the second law of thermodynamics. The entropy production and power loss of isolated SECS were analyzed. Based on the distinctive characteristics of SECS, a performance evaluation function was proposed. The influence of heat load on was discussed by simulating. The conclusions provide the theory basis for the application of this new cooling technology.

Development of an Improved Desiccant-Based Evaporative Cooling System for Gas Turbines

2008 ◽  
Author(s):  
Amir Abbas Zadpoor ◽  
Ali Asadi Nikooyan
Keyword(s):  
Gas Turbine ◽  
Gas Turbines ◽  
Cooling System ◽  
Evaporative Cooling ◽  
Climatic Conditions ◽  
Cooling Systems ◽  
Actual Performance ◽  
Evaporative Cooling System ◽  
Industrial Gas Turbine ◽  
Gas Turbine Cycle

The evaporative inlet cooling systems used for inlet cooling of gas turbines during hot summers do not work well in humid areas. However, desiccant wheels can be used to dehumidify the air before passing it trough the evaporative cooler. Since the desiccant wheels work adiabatically, the resulting air is hotter than the air introduced to the wheel and an evaporative cooling system is used to cool down the dehumidified air. Combined direct and indirect evaporative coolers have been already used to investigate the effects of dehumidification on the effectiveness of the evaporation cooling systems. It is shown that a single desiccant wheel does not offer much higher effectiveness compared to the multiple-stage evaporative systems. In this paper, an improved version of the desiccant inlet cooling system is presented. Additional dehumidification and indirect evaporative cooling stages are added to increase the effectiveness of the inlet cooling. A typical gas turbine cycle along with an industrial gas turbine with actual performance curves are used to simulate the thermal cycle in presence of the different inlet cooling systems. The simulations are carried out for three different climatic conditions. The improved and original desiccant-based systems are compared and it is shown that the added stages substantially improve the effectiveness of the desiccant-based inlet cooling.

scholarly journals Evaporative cooling system for gestating and lactating sows: a systematic review

2020 ◽  
Vol 50 (10) ◽  
Author(s):  
Melissa Fabíola dos Santos Alves Mendes ◽  
David Henrique de Oliveira ◽  
Fábio Loures Cruz ◽  
Múcio André dos Santos Alves Mendes ◽  
Bruna Pontara Vilas Boas Ribeiro ◽  
...  
Keyword(s):  
Systematic Review ◽  
Cooling System ◽  
Evaporative Cooling ◽  
Ambient Temperatures ◽  
Lactating Sows ◽  
Evaporative Cooling System ◽  
Bibliographic Search ◽  
And Performance ◽  
Lactating Sow ◽  
Climatic Characteristics

ABSTRACT: Climatic characteristics of the production sites of pigs influence the yield of the system, with breeding sows being a category extremely sensitive to high temperatures, especially when their upper critical temperature is reached. This review evaluated the effects of the evaporative cooling system on environmental, physiological and performance parameters in breeding sows. By means of this review, a bibliographic search was performed using the following keywords: sow; swine; gilt and pig combined individually with the expression ‘evaporative cooling’. A total of 11 papers met the prerequisites determined to compose the systematic review and the studies involved gestating and lactating sows maintained in environments that presented ambient temperatures between 21.5 and 34.8 °C and relative humidity between 32.2 and 84.2%. The evaporative cooling system was used in order to cool the macro or micro environment. It can be concluded that the use of evaporative cooling system promotes increase in feed intake per lactating sow, decrease in weight loss in lactation, increase of weight of piglets at weaning, temperature reduction of the barns and decrease of the respiratory rate of the sows. For gestating sows, no changes in reproductive performance were reported.

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