scholarly journals High ambient temperature effects on the performance of a gas turbine-based cogeneration system with supplementary fire in a tropical climate

2021 ◽  
Vol 26 ◽  
pp. 101206
Author(s):  
Daniel Armando Pinilla Fernandez ◽  
Blanca Foliaco ◽  
Ricardo Vasquez Padilla ◽  
Antonio Bula ◽  
Arturo Gonzalez-Quiroga
Keyword(s):  
Ambient Temperature ◽  
Gas Turbine ◽  
Temperature Effects ◽  
Tropical Climate ◽  
High Ambient Temperature ◽  
Cogeneration System

Design Flexibility Permits a 35000 HP Industrial Gas Turbine to Meet a Wide Range of Application Requirements

1983 ◽  
Author(s):  
P. W. Kuly
Keyword(s):  
Ambient Temperature ◽  
Gas Turbine ◽  
Gas Flow ◽  
Steam Injection ◽  
High Ambient Temperature ◽  
Engine Operation ◽  
Temperature Conditions ◽  
Exhaust Heat ◽  
Wide Range ◽  
Industrial Gas Turbine

Two recent applications for a heavy duty industrial gas turbine engine are discussed. The principal design requirements for both cases are compared and the design changes necessary to meet the requirements are illustrated. In the case of a main pipeline compressor driver, the need for high thermal efficiency over a wide range of loads is met by use of a regenerative cycle and by reprogramming the loading sequence. Long term step increases in engine capability were provided by incorporating a unique engine convertability feature. In the case of a process air compressor driver with exhaust heat recovery, the engine exhaust temperature and gas flow imposed constraints on engine capability during high ambient temperature operation and on engine operation at low ambient temperature conditions. The constraints were met by the use of steam injection to augment power at high ambient temperature conditions and by the use of variable inlet guide vanes to control exhaust flow at the low temperatures.

High ambient temperature effects in LiF TLD-100

1991 ◽  
Vol 24 (7) ◽  
pp. 1126-1130 ◽  
Author(s):  
A Delgado ◽  
J M Gomez Ros ◽  
J L Muniz
Keyword(s):  
Ambient Temperature ◽  
Temperature Effects ◽  
High Ambient Temperature

Experimental and Analytical Study on the Operation Characteristics of the AHAT System

2012 ◽  
Vol 134 (5) ◽  
Author(s):  
Hidefumi Araki ◽  
Tomomi Koganezawa ◽  
Chihiro Myouren ◽  
Shinichi Higuchi ◽  
Toru Takahashi ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Ambient Temperature ◽  
Gas Turbine ◽  
Thermal Efficiency ◽  
Pilot Plant ◽  
Temperature Effects ◽  
Operational Flexibility ◽  
Start Up ◽  
Air Turbine ◽  
Load Characteristics

Operational flexibility, such as faster start-up time or faster load change rate, and higher thermal efficiency, have become more and more important for recent thermal power systems. The advanced humid air turbine (AHAT) system has been studied to improve operational flexibility and thermal efficiency of the gas turbine power generation system. Advanced humid air turbine is an original system which substitutes the water atomization cooling (WAC) system for the intercooler system of the HAT cycle. A 3 MW pilot plant, which is composed of a gas turbine, a humidification tower, a recuperator and a water recovery system, was built in 2006 to verify feasibility of the AHAT system.In this paper, ambient temperature effects, part-load characteristics and start-up characteristics of the AHAT system were studied both experimentally and analytically. Also, change in heat transfer characteristics of the recuperator of the 3 MW pilot plant was evaluated from Nov. 2006 to Feb. 2010. Ambient temperature effects and part-load characteristics of the 3 MW pilot plant were compared with heat and material balance calculation results. Then, these characteristics of the AHAT and the combined cycle (CC) systems were compared assuming they were composed of mid-sized industrial gas turbines.The measured cold start-up time of the 3 MW AHAT pilot plant was about 60 min, which was dominated by the heat capacities of the plant equipment. The gas turbine was operated a total of 34 times during this period (Nov. 2006 to Feb. 2010), but no interannual changes were observed in pressure drops, temperature effectiveness, and the overall heat transfer coefficient of the recuperator.

Theoretical and Experimental Study of Compressor and Gas Turbine Performances With Wet Compression

2002 ◽  
Author(s):  
Yunhui Wang ◽  
Qun Zheng ◽  
Yufeng Sun ◽  
Guoxue Wang
Keyword(s):  
Experimental Study ◽  
Ambient Temperature ◽  
Gas Turbine ◽  
Power Output ◽  
Gas Turbines ◽  
High Ambient Temperature ◽  
Turbine Performance ◽  
Wet Compression ◽  
Industrial Gas Turbine ◽  
Engine Power

Theoretical and experimental study of compressor and gas turbine performance with wet compression has been carried out on S1A-02 industrial gas turbine to reveal its effects on gas turbines, compressors. Experiment results show that wet compression has significantly effects on performances of gas turbines and compressors; under situations of high ambient temperature, wet compression can be used to restore engine power output.

Physico-Chemical Method of Preserving Sucrose in Harvested Sugarcane at High Ambient Temperature in a Sub-Tropical Climate

Sugar Tech ◽  
2011 ◽  
Vol 13 (1) ◽  
pp. 60-67 ◽  
Author(s):  
S. Solomon ◽  
Priyanka Singh ◽  
A. K. Shrivastava ◽  
Pushpa Singh ◽  
Amaresh Chandra ◽  
...  
Keyword(s):  
Ambient Temperature ◽  
Chemical Method ◽  
Tropical Climate ◽  
High Ambient Temperature ◽  
Physico Chemical

scholarly journals The effect of betaine supplementation on performance of laying hens in the tropical climate during the starting period

2021 ◽  
Vol 902 (1) ◽  
pp. 012043
Author(s):  
Z A Wahid ◽  
A Ratriyanto ◽  
S Prastowo
Keyword(s):  
Weight Gain ◽  
Ambient Temperature ◽  
Laying Hens ◽  
Basal Diet ◽  
Tropical Climate ◽  
High Ambient Temperature ◽  
Lower Weight ◽  
Lower Weight Gain ◽  
Dietary Treatments ◽  
Betaine Supplementation

Abstract The study investigated the effects of dietary betaine on the growth performance of laying hens in a tropical climate during the starting period. In total, 192 laying hens strain Lohmann aged three weeks were assigned to four dietary treatments, each consisting of six replicates of eight birds. The dietary treatments included a basal diet (T0) and a basal diet supplemented with betaine at 6 mg/kg (T1), 12 mg/kg (T2), 18 mg/kg (T3). The treatments lasted for eight weeks. Temperature and relative humidity were measured with Hobo-U12, while the wet-bulb temperature was measured using Lutron HT-3027SD. The effect of betaine was not consistent where T3 decreased feed intake (FI) in week 2 but increased FI in weeks 4 and 5. Furthermore, T2 showed higher FI in weeks 6 and 7 than T0 (p<0.05). Accordingly, T2 and T3 led to lower weight gain in week 2, but they compensated with higher weight gain in week 4 when ambient temperature above 30°C occurred for 42 hours in a week. Overall, weight gain and body weight in week 8 was not affected by the treatment. It is concluded that the effect of betaine was more apparent when the birds were exposed to high ambient temperature.

Effect of ambient temperature on the performance of micro gas turbine with cogeneration system in cold region

2011 ◽  
Vol 31 (6-7) ◽  
pp. 1058-1067 ◽  
Author(s):  
Firdaus Basrawi ◽  
Takanobu Yamada ◽  
Kimio Nakanishi ◽  
Soe Naing
Keyword(s):  
Ambient Temperature ◽  
Gas Turbine ◽  
Cold Region ◽  
Micro Gas Turbine ◽  
Cogeneration System
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