Evaluation of ceramic refractories for corrosion behavior by molten slag-seed mixture of a coal-fired open-cycle MHD system

Wetting, spreading and corrosion behavior of molten slag on dense MgO and MgO-C refractory

Ceramics International ◽

10.1016/j.ceramint.2018.09.234 ◽

2019 ◽

Vol 45 (1) ◽

pp. 718-724 ◽

Cited By ~ 11

Author(s):

Zhaoyang Liu ◽

Lei Yuan ◽

Endong Jin ◽

Xin Yang ◽

Jingkun Yu

Keyword(s):

Corrosion Behavior ◽

Molten Slag

Download Full-text

Performance and Economics of Advanced Energy Conversion Systems for Coal and Coal-Derived Fuels

Journal of Engineering for Power ◽

10.1115/1.3446341 ◽

1978 ◽

Vol 100 (2) ◽

pp. 252-259 ◽

Cited By ~ 1

Author(s):

J. C. Corman ◽

G. R. Fox

Keyword(s):

Energy Conversion ◽

Power Plants ◽

Technical Information ◽

Steam Power ◽

Energy Conversion Systems ◽

Combined Cycles ◽

Energy Conversion System ◽

Open Cycle ◽

Topping Cycle ◽

Mhd System

The desire to establish an efficient Energy Conversion System to utilize the fossil fuel of the future—coal—has produced many candidate systems. A comparative technical/economic evaluation was performed on the seven most attractive advanced energy conversion systems. The evaluation maintains a cycle-to-cycle consistency in both performance and economic projections. The technical information base can be employed to make program decisions regarding the most attractive concept. A reference steam power plant was analyzed to the same detail and, under the same ground rules, was used as a comparison base. The power plants were all designed to utilize coal or coal-derived fuels and were targeted to meet an environmental standard. The systems evaluated were two advanced steam systems, a potassium topping cycle, a closed cycle helium system, two open cycle gas turbine combined cycles, and an open cycle MHD system.

Download Full-text

Vapor-pressure data for potassium- and sulfur-containing species in a slag-free open-cycle MHD system

10.2172/5998524 ◽

1982 ◽

Author(s):

C. Hsu ◽

P. Blackburn ◽

C. Johnson

Keyword(s):

Vapor Pressure ◽

Pressure Data ◽

Vapor Pressure Data ◽

Open Cycle ◽

Mhd System ◽

Sulfur Containing

Download Full-text

GASCON and MHDGAS: FORTRAN IV computer codes for calculating gas and condensed-phase compositions in the coal-fired open-cycle MHD system

10.2172/5317313 ◽

1977 ◽

Cited By ~ 1

Author(s):

P E Blackburn

Keyword(s):

Condensed Phase ◽

Computer Codes ◽

Open Cycle ◽

Mhd System

Download Full-text

Corrosion Behavior of MgO–C Ladle Refractory by Molten Slag

steel research international ◽

10.1002/srin.202000497 ◽

2020 ◽

pp. 2000497

Author(s):

Qing Zhao ◽

Xiang Zheng ◽

Chengjun Liu ◽

Maofa Jiang ◽

Henrik Saxén ◽

...

Keyword(s):

Corrosion Behavior ◽

Molten Slag ◽

Ladle Refractory

Download Full-text

A Critique of MHD Power Generation

Journal of Engineering for Power ◽

10.1115/1.3445346 ◽

1970 ◽

Vol 92 (3) ◽

pp. 217-230

Author(s):

William D. Jackson ◽

Michael Petrick ◽

James E. Klepeis

Keyword(s):

Power Generation ◽

Liquid Metal ◽

Electrical Power ◽

Commercial Application ◽

Small Scale ◽

Closed Cycle ◽

Auxiliary Equipment ◽

Cycle System ◽

Open Cycle ◽

Mhd System

Magnetohydrodynamic electrical power generation is a promising new technique for upgrading the efficiency of converting heat into electricity. The concept has been explored intensively but on a small scale during the past ten years, and the initial enthusiasm in it has been confirmed. Its utilization in base-load plants, in addition to increasing overall efficiency, can also lead to important reductions in the adverse environmental effects of thermal and air pollution. The projected efficiencies of large dual cycle systems are initially in the range of 47–50 percent, and improvements in technology could later increase this to 60 percent. In an MHD system, energy is extracted from a flowing electrically conducting fluid. The fluid may be either a seeded plasma or a liquid metal. Various MHD power cycles and systems are therefore under consideration. The status of these systems will be reviewed with emphasis on their application to large central-station commercial systems. The major technological problems and progress in the three major cycles (open cycle, closed-cycle plasma, and closed-cycle liquid metal) will be discussed in depth. In the open-cycle system, the engineering solutions that have been proposed for the major problems in the generator and auxiliary equipment will be detailed. In addition, the experience gained from the operation of a succession of generators will be summarized. In the case of the closed-cycle plasma system, the progress that has been made toward developing a generator with the requisite conversion efficiency will be cited. Recent cycle analyses that have established the conditions for matching these systems to current heat sources will also be reviewed and their implications noted. The potential of developing liquid-metal MHD systems for commercial application will be explored in the light of recently obtained experimental and analytical performance information. In particular, promising new techniques that can lead to improved efficiencies will be detailed.

Download Full-text

Sem Studies of Co-Cr-Mo Surgical Implant Alloy Corrosion Behavior

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100055448 ◽

1982 ◽

Vol 40 ◽

pp. 520-521

Author(s):

Ann Chidester Van Orden ◽

John L. Chidester ◽

Anna C. Fraker ◽

Pei Sung

Keyword(s):

Electron Microscopy ◽

Corrosion Behavior ◽

Anodic Polarization ◽

Saline Solution ◽

Saturated Calomel Electrode ◽

Physiological Saline ◽

X Ray ◽

Physiological Saline Solution ◽

Scanning Electron

The influence of small variations in the composition on the corrosion behavior of Co-Cr-Mo alloys has been studied using scanning electron microscopy (SEM), energy dispersive x-ray analysis (EDX), and electrochemical measurements. SEM and EDX data were correlated with data from in vitro corrosion measurements involving repassivation and also potentiostatic anodic polarization measurements. Specimens studied included the four alloys shown in Table 1. Corrosion tests were conducted in Hanks' physiological saline solution which has a pH of 7.4 and was held at a temperature of 37°C. Specimens were mechanically polished to a surface finish with 0.05 µm A1203, then exposed to the solution and anodically polarized at a rate of 0.006 v/min. All voltages were measured vs. the saturated calomel electrode (s.c.e.).. Specimens had breakdown potentials near 0.47V vs. s.c.e.

Download Full-text