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00646 The value of photovoltaic electricity for society
08
Steam raising (boiler operation/design)
96lOO643
A theoretical study of a thermosyphon solar
turbine
Perez, S. E. er al., Solar Energy, May 1995, 54, (5), 345-350. In this paper, the authors study the feasibility of generating power with very tall solar collectors and the thermosyphon effect.
Towards sustainability 96lOO644 McChesney, I. Energy World, Sep. 1995, (231), 9-10. The growing range of alternative energy technologies available gives us ‘a fighting chance’ lo hand over to the next generation plant that is ‘still in working order’, says Ian McChensey of Energy for Sustainable Development Ltd in this article. 96100645 The true cost of renewable8 Solar Today, Nov.-Dec. sDw-;z2cy,B. G. and Wan, Y. H.
1995, 9, (6),
Describes how in marked contrast to a coal industry-funded study, the National Renewable Energy Laboratory, USA, analysts found that renewable energy technologies are economic, environmentally beneficial generation options.
The value of photovoltaic electricity for society 96lOO646 Haas, R. Solar Energy, Jan. 1995, 54, (l), 25-31. The paper addresses several issues to be considered when assessing the value of PV electricity. The value of PV has been examined from various perspectives-consumer, utility, and environmental-and for central and decentralized PV systems. Aggregating these benefits leads lo the value of PV for society. In this context, economic and ecological aspects have been considered. Furthermore, feedback from consumers drawing electricity directly from the sun have been taken into account. This L expressed mainly as energy conservation and load-shift effects triggered by changes in consumer behaviour due to decentralized PV systems. 96100647 The view from Washington Hochanadel, J. Solar Today, Nov.-Dec. 1995, 9, (6), p. 16. Reports that renewables have had a difficult year in the face of massive cuts in federal research and development programmes and with threatened Congressional action to gut the Public Utilities Regulatory Policies Act (PURA). 96iOO646 A wave of optimism1 (Viewpoint) Allen, P. Energy World, Se . 1995, (231), p. 2. A viewpoint by Paul Allen, C!entre for Alternative Technology, Machynlleth, Powys, Wales, on the increasing world demand for energy.
08 STEAM RAISING
96100652 Heavy metals In condensing boiler condensates. Chromium and nickel are problematical Uffelmann, S. er al., Sanir. Heir. Tech., Jul. 1995, 60, (7), 64-72. (In German) The article describes a project carried out lo investigate concentration of heavy metals in the condensate of 40 reuresentative condensing boiler installations. The aim of the project was lo determine whether, andTo what extent, the presence of heavy metals exceeded stipulated values. Describes the test procedure used.
Mlnlmlzlng the llfe cycle costs attributed to boiler tubing In fossil-fueled plants Paterson,S. R. Proc. Am. Power Co@, 1995, 57, (3), 1787-1797. 96100653
During the past quarter century, much was learned about tube degradation, the factors which lead lo and influence the rate of damage, and measures to mitigate or eliminate the damage in boiler tubing. The paper describes some of the knowledge which was compiled regarding two of the most significant degradation modes - corrosion-fatigue of waterwall tubes and high temperature creep of superheater and reheater tubes.
96100654 Preoccupations for some thermopower equipment and Installations rehabilltatlon and repowering Cardu, M. Energy Convers. Mgmt., Jan. 1995, 36, (1). 35-40. The paper shows ICPET-SA activity results in the thermopower equi ment and installations rehabilitation and repowering field: steam boilers, e Pectrostatic precipitators, steam turbines, electrical generators and burning systems for industrial furances.
Recent technologies on thermal electric power Kawamura,T. Mitsubishi Juko Giho, 1995, 32, (l), 1-3. (In Japanese) A review on recent thermal power plant techniques in terms of boilerturbine power plants, gas turbine combined plants, power plants with highefficiency coal usage and solid oxide fuel cells, CO, recovery, and natural energy utilization.
96100656 The role of non-destructive testing In the control of boiler tube failures James, P. J. Insight (Northampton, UK), 1995, 37, (3), 179-183. PowerGen is a UK electricity generating company which operates some 16 GW of plant, burning coal, oil, orimulsion and gas. The scientific and technical support necessary to maintain the efficient cost-effective operation of these stations is provided from Ihe Power Technology Centre, based near Nottingham, UK. The centre was particularly active in the field of boiler tube failure control, developing an unrivaled expertise through a highly interactive approach with stations over many years. The paper highlights the integral role of NDT in formulating structured maintenance strategies lo achieve reductions in boiler tube failures.
Boiler Operation/Design Benson boiler with vertically tubed combustion chamber. Close-to-practice experiment demonstrates the safety of design
96100649
09 COMBUSTION
Franke, J. et al., VGB Krafiwerkstech., 1995, 75, (4), 353-359. (In German) The pader discusses the results of basic research and its translation into computer programs which were established in maior experiments on largescale praciicai applications on the 320 MW-boile; at Farge Power Station. With the use of inner finned evaoorator tubes. it is oossible lo attain the design objects of ‘safe cooling of evaporator iubes’ gnd ‘overcoming the heating differences’ even for vertical tubing in the combustion chamber.
96100657
96100650
JP.O7,54,666,Feb. 1995.
Burners, Combustion Systems
Kate, M.
Condensatlonal droolet arowth as a orecondltlonlng technique for the separatloi of
Heidenreich, S. and Ebert, F. Chemical Engng. & Processing, Jun. 1995, 34, (3), 235-244. Droplet growth by heterogeneous condensation of water vapour as a preconditioning technique for the separation of submicron particles from gases has been investigated both theoretically and experimentally. The fundamentals of droplet growth theory including the growth of soluble particles are presented.
Development of adaptlve control system for bollere uslna varlous coal types
96lOQ651
Ohki,-T. et al., IHI Eni. Res., 1995, 28, (2), 51-58. Describes the development to maintain the high load change characteristics at coal-fired boilers using various types of coal. The concept of an adaptable control system was used.
40
Fuel and Energy Abstracts January 1996
Apparatus for coal gaslflcatlon wlth multi-stage flu-
ldlzed bed (Assigned to) Ishikawajima Harima Heavy Ind., JAP. Pat.
The apparatus is used in power plants, and includes a desulphurization means above the fluidized-bed gasifier for passing the desulphurization agent through the fluidized beds from the top lo the bottom and the gasified gases from the bottom lo the top.
96lOO656 Appllcatlon of laser Induced fluorescence to practlcal combustion fields Deguchi, Y. er al., Mitsubishi Juko Giho, 1995, 32, (2), 101-104. (In Japanese) Detailed measurement techniques are necessary lo understand the reaction mechanism of combustion to cooe with environmental conservation and of combtstors. In this study measurement techimprove the efficient niques using LF have r,een developed in the fields of gas, liquid, and solid fuel combustion to apply LIF to practical combustors such as gas turbine combustors, internal &mbustion engines and boilers.
Steam raising (boiler operation/design)
96lOO643
A theoretical study of a thermosyphon solar
turbine
Perez, S. E. er al., Solar Energy, May 1995, 54, (5), 345-350. In this paper, the authors study the feasibility of generating power with very tall solar collectors and the thermosyphon effect.
Towards sustainability 96lOO644 McChesney, I. Energy World, Sep. 1995, (231), 9-10. The growing range of alternative energy technologies available gives us ‘a fighting chance’ lo hand over to the next generation plant that is ‘still in working order’, says Ian McChensey of Energy for Sustainable Development Ltd in this article. 96100645 The true cost of renewable8 Solar Today, Nov.-Dec. sDw-;z2cy,B. G. and Wan, Y. H.
1995, 9, (6),
Describes how in marked contrast to a coal industry-funded study, the National Renewable Energy Laboratory, USA, analysts found that renewable energy technologies are economic, environmentally beneficial generation options.
The value of photovoltaic electricity for society 96lOO646 Haas, R. Solar Energy, Jan. 1995, 54, (l), 25-31. The paper addresses several issues to be considered when assessing the value of PV electricity. The value of PV has been examined from various perspectives-consumer, utility, and environmental-and for central and decentralized PV systems. Aggregating these benefits leads lo the value of PV for society. In this context, economic and ecological aspects have been considered. Furthermore, feedback from consumers drawing electricity directly from the sun have been taken into account. This L expressed mainly as energy conservation and load-shift effects triggered by changes in consumer behaviour due to decentralized PV systems. 96100647 The view from Washington Hochanadel, J. Solar Today, Nov.-Dec. 1995, 9, (6), p. 16. Reports that renewables have had a difficult year in the face of massive cuts in federal research and development programmes and with threatened Congressional action to gut the Public Utilities Regulatory Policies Act (PURA). 96iOO646 A wave of optimism1 (Viewpoint) Allen, P. Energy World, Se . 1995, (231), p. 2. A viewpoint by Paul Allen, C!entre for Alternative Technology, Machynlleth, Powys, Wales, on the increasing world demand for energy.
08 STEAM RAISING
96100652 Heavy metals In condensing boiler condensates. Chromium and nickel are problematical Uffelmann, S. er al., Sanir. Heir. Tech., Jul. 1995, 60, (7), 64-72. (In German) The article describes a project carried out lo investigate concentration of heavy metals in the condensate of 40 reuresentative condensing boiler installations. The aim of the project was lo determine whether, andTo what extent, the presence of heavy metals exceeded stipulated values. Describes the test procedure used.
Mlnlmlzlng the llfe cycle costs attributed to boiler tubing In fossil-fueled plants Paterson,S. R. Proc. Am. Power Co@, 1995, 57, (3), 1787-1797. 96100653
During the past quarter century, much was learned about tube degradation, the factors which lead lo and influence the rate of damage, and measures to mitigate or eliminate the damage in boiler tubing. The paper describes some of the knowledge which was compiled regarding two of the most significant degradation modes - corrosion-fatigue of waterwall tubes and high temperature creep of superheater and reheater tubes.
96100654 Preoccupations for some thermopower equipment and Installations rehabilltatlon and repowering Cardu, M. Energy Convers. Mgmt., Jan. 1995, 36, (1). 35-40. The paper shows ICPET-SA activity results in the thermopower equi ment and installations rehabilitation and repowering field: steam boilers, e Pectrostatic precipitators, steam turbines, electrical generators and burning systems for industrial furances.
Recent technologies on thermal electric power Kawamura,T. Mitsubishi Juko Giho, 1995, 32, (l), 1-3. (In Japanese) A review on recent thermal power plant techniques in terms of boilerturbine power plants, gas turbine combined plants, power plants with highefficiency coal usage and solid oxide fuel cells, CO, recovery, and natural energy utilization.
96100656 The role of non-destructive testing In the control of boiler tube failures James, P. J. Insight (Northampton, UK), 1995, 37, (3), 179-183. PowerGen is a UK electricity generating company which operates some 16 GW of plant, burning coal, oil, orimulsion and gas. The scientific and technical support necessary to maintain the efficient cost-effective operation of these stations is provided from Ihe Power Technology Centre, based near Nottingham, UK. The centre was particularly active in the field of boiler tube failure control, developing an unrivaled expertise through a highly interactive approach with stations over many years. The paper highlights the integral role of NDT in formulating structured maintenance strategies lo achieve reductions in boiler tube failures.
Boiler Operation/Design Benson boiler with vertically tubed combustion chamber. Close-to-practice experiment demonstrates the safety of design
96100649
09 COMBUSTION
Franke, J. et al., VGB Krafiwerkstech., 1995, 75, (4), 353-359. (In German) The pader discusses the results of basic research and its translation into computer programs which were established in maior experiments on largescale praciicai applications on the 320 MW-boile; at Farge Power Station. With the use of inner finned evaoorator tubes. it is oossible lo attain the design objects of ‘safe cooling of evaporator iubes’ gnd ‘overcoming the heating differences’ even for vertical tubing in the combustion chamber.
96100657
96100650
JP.O7,54,666,Feb. 1995.
Burners, Combustion Systems
Kate, M.
Condensatlonal droolet arowth as a orecondltlonlng technique for the separatloi of
Heidenreich, S. and Ebert, F. Chemical Engng. & Processing, Jun. 1995, 34, (3), 235-244. Droplet growth by heterogeneous condensation of water vapour as a preconditioning technique for the separation of submicron particles from gases has been investigated both theoretically and experimentally. The fundamentals of droplet growth theory including the growth of soluble particles are presented.
Development of adaptlve control system for bollere uslna varlous coal types
96lOQ651
Ohki,-T. et al., IHI Eni. Res., 1995, 28, (2), 51-58. Describes the development to maintain the high load change characteristics at coal-fired boilers using various types of coal. The concept of an adaptable control system was used.
40
Fuel and Energy Abstracts January 1996
Apparatus for coal gaslflcatlon wlth multi-stage flu-
ldlzed bed (Assigned to) Ishikawajima Harima Heavy Ind., JAP. Pat.
The apparatus is used in power plants, and includes a desulphurization means above the fluidized-bed gasifier for passing the desulphurization agent through the fluidized beds from the top lo the bottom and the gasified gases from the bottom lo the top.
96lOO656 Appllcatlon of laser Induced fluorescence to practlcal combustion fields Deguchi, Y. er al., Mitsubishi Juko Giho, 1995, 32, (2), 101-104. (In Japanese) Detailed measurement techniques are necessary lo understand the reaction mechanism of combustion to cooe with environmental conservation and of combtstors. In this study measurement techimprove the efficient niques using LF have r,een developed in the fields of gas, liquid, and solid fuel combustion to apply LIF to practical combustors such as gas turbine combustors, internal &mbustion engines and boilers.