Pre‐adsorption of low‐grade waste steam for high‐temperature steam generation by using composite zeolite and long‐term heat storage salt of MgSO 4

2020 ◽  
Vol 44 (7) ◽  
pp. 5634-5648
Author(s):  
Linsheng Zhang ◽  
Song Ye ◽  
Bing Xue ◽  
Xinli Wei ◽  
Koichi Nakaso ◽  
...  
Keyword(s):  
High Temperature ◽  
Heat Storage ◽  
Low Grade ◽  
Steam Generation ◽  
High Temperature Steam

scholarly journals Solar-driven high-temperature steam generation at ambient pressure

2019 ◽  
Vol 29 (1) ◽  
pp. 10-15 ◽  
Author(s):  
Xinyu Wang ◽  
Yanming Liu ◽  
Rui Feng ◽  
Yao Zhang ◽  
Chao Chang ◽  
...  
Keyword(s):  
High Temperature ◽  
Ambient Pressure ◽  
Steam Generation ◽  
High Temperature Steam

scholarly journals Thermodynamic Performance of Molten Salt Heat Storage System Used for Regulating Load and Supplying High Temperature Steam in Coal-Fired Cogeneration Power Plants

2020 ◽  
Vol 194 ◽  
pp. 01034
Author(s):  
Haihua Luo ◽  
Qiang Shen ◽  
Yunfei Chen ◽  
Shien Sun ◽  
Junguang Lin ◽  
...  
Keyword(s):  
High Temperature ◽  
Molten Salt ◽  
Entropy Generation ◽  
Power Plants ◽  
Heat Storage ◽  
Storage System ◽  
Analytical Models ◽  
Electricity Production ◽  
Second Law ◽  
High Temperature Steam

In order to accept more electricity from renewable energy, cogeneration power plants are considering to reduce electricity production, which affects the heat supply. Here we present a molten salt heat storage system for coal-fired cogeneration power plants, which can supply high temperature steam to users and decouple the heat and electricity production. The first and second law-based analytical models for the cycle and a real device are built. Two water input methods are taken into account. The results show that the high and low temperatures in the two molten salt tanks influence the design of the components and the entropy generation distribution significantly. The pinch temperature difference in the discharge duration limits the lowest molten salt temperature. The device with real heat exchangers produces higher entropy generation and lower second law efficiency. Environmental water input requires more heat and entropy generation for the same steam supply. Recommendations are provided for practical designs.

Combustion of Crushed, Dried Texas Lignite and Char in Steam Power Boilers

1962 ◽  
Vol 84 (1) ◽  
pp. 139-149
Author(s):  
V. Z. Caracristi ◽  
H. D. Mumper
Keyword(s):  
Power Generation ◽  
High Pressure ◽  
High Temperature ◽  
Low Cost ◽  
Steam Generation ◽  
Steam Power ◽  
High Pressure High Temperature ◽  
High Temperature Steam

The development and application of a processed lignite fuel to the generation of high-pressure, high-temperature steam are described. The economics of this processed fuel for steam generation is a part of the over-all economics of low-cost power generation for the production of aluminum.

Durability of bends in high-temperature steam lines under the conditions of long-term operation

2015 ◽  
Vol 62 (4) ◽  
pp. 260-270 ◽  
Author(s):  
N. A. Katanakha ◽  
A. S. Semenov ◽  
L. B. Getsov
Keyword(s):  
High Temperature ◽  
Term Operation ◽  
High Temperature Steam

Microstructural characterization of a rapidly solidified Al-Fe-V-Si alloy for elevated temperature applications

1988 ◽  
Vol 46 ◽  
pp. 550-551
Author(s):  
R. E. Franck ◽  
J. A. Hawk ◽  
G. J. Shiflet
Keyword(s):  
High Temperature ◽  
Elevated Temperature ◽  
Grain Growth ◽  
Volume Fraction ◽  
Microstructural Characterization ◽  
Second Phase ◽  
Microstructural Stability ◽  
Elevated Temperature Strength ◽  
Temperature Applications

Rapid solidification processing (RSP) is one method of producing high strength aluminum alloys for elevated temperature applications. Allied-Signal, Inc. has produced an Al-12.4 Fe-1.2 V-2.3 Si (composition in wt pct) alloy which possesses good microstructural stability up to 425°C. This alloy contains a high volume fraction (37 v/o) of fine nearly spherical, α-Al12(Fe, V)3Si dispersoids. The improved elevated temperature strength and stability of this alloy is due to the slower dispersoid coarsening rate of the silicide particles. Additionally, the high v/o of second phase particles should inhibit recrystallization and grain growth, and thus reduce any loss in strength due to long term, high temperature annealing.The focus of this research is to investigate microstructural changes induced by long term, high temperature static annealing heat-treatments. Annealing treatments for up to 1000 hours were carried out on this alloy at 500°C, 550°C and 600°C. Particle coarsening and/or recrystallization and grain growth would be accelerated in these temperature regimes.

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