- Email: [email protected]
Advanced sealing technology for rotary regenerative heat exchangers
11
95102931 Surface-adaptive free surface flows Th;:,;OL.
finite-volume
Process heating, power and incineration
method for solving
et al., Numerical Heat Transfer, Part B, Dec. 1994, 26, (4),
Presents a method for solving the mimitive-variable eauations of motion for viscous, incompressible, gee-&face flows. The cdmputational mesh defines, quadrilaterals that are used as the control volumes in a finitevolume method in which the mesh moves to adapt to the free surface. Dependent variables are w-located at the centre of each volume. The strength of the present method results from the innovative way in which the control volume comers, which defines the surface location, are moved by appl ing a ‘natural’ closure of the mass and momentum equations along the su K ace. This avoids the need for a separate kinematic condition while ensuing that the kinematic condition is exactly satisfied.
95102932
Tailor-made
CHP: Energy saving Gas (Netherlands), Dec. 1994, 114, (12),
Hof, H. and Van Der Ploeg, P. 638-639. (In Flemish)
Response of EnergieNed and SEP spokesman Hans Hof and Pieter van der Ploeg to the Gasunie article ‘Tailor-made CHP outdoing district heating’ in the October issue of GAS magagine. The authors discuss the benefits of district heating, like flexibility in heat demand changes and the application of the best and cleanest production technologies. Moreoever, they think for the time being high-efficiency boilers will continue to play a major role.
95102933 energy
Tailor-made
co-generation
important
to
save
Beeldman, M. and Schaeffer, G. J. Gas (Netherlands), Feb. 1995, 115, (2), 26-28. (In Flemish) The utilisation of w-generation has to be assessed for each situation. According to ECN, co-generation projects have to be assessed on the basis of so-called weighing variables such as heat demand, reqti :d electrical power, electricity generated nationally and available mont , . This way, energy savings can be maximized. The parties involved can also determine the variables that should get most attention. Anyway, ECN warns the parties in the energy sector against relying too much on their own current interests. It is therefore advisable that the Government assumes a guiding role in developing an adequate vision on the energy supply in the Netherlands.
(energy applications
in industty)
95102930 Cooling parameters snd film conductances of sohericai oroducts cooled in an alr flow dincer, I. ‘Applied Energy, 1995, 50, (3), 269-280. In this study, a methodology to determine cooling-process parameters (i.e. lag factor, cooling coefficient, half cooling time and seven-eighths cooling time) and an analytical model for determining film wnductances during cooling of spherical food products were proposed. Temperature measurements at the centres of the spherical products, which were carried out in the experimental investigation, were used to determine practical cooling process parameters and to test the film conductance of the present model. The results indicated that the cooling-process parameters varied and the film wnductances decreased with a positive increment in the flow velocity of the air. 95102939 Corrosion of siilcon carbides by ash and vapor in a coal combustion environment Senior, C. L. et al., Ceram. Trans., 1994, 42, 335-342. To increase the efficiency of indirectly-fired coal-fueled power systems, the workin fluid must be heated to higher temperatures than is resently possible. d e largest escalations in temperature will wme with tg e use of a ceramic heat exchangers. The US De artment of Energy is supportin project to develop a coal-fired, lug .g performance power system fat employs a high temperature ceramic air heater. One wncem for this system is wrrosion of the ceramic by ash and alkali vapour at temperatures below 1300K. 95102940 Deashing of coal liquids by sonically assisted filtration Slomka, B. J. Prepr. Pap.-Am. Chem. Sot., Div. Fuel Chem., 1994, 39, (4). 1223-1227. Describes a state-of-the-art crossflow filter utilizing a 2-micron porosity stainless steel tubes as the filtration medium which was built and used in the deashing tests. 95102941 Deveio ments in alternative ironmsking and hlgh blast furnace coal Pnjection, Maizieres-ies-Met& 20-21 December 1993, Comm. Eur. Communiries, EUR.155821, CEC, Luxembourg, 1994, 187 PP. 95fQ2942 Direct-contact heat transfer between a rising dispersed phase in a counterflow stream t;+_Fi2 et al., Numerical Heat Transfer, Parr A, Dec. 1994, 26, (6),
11 PROCESS HEATING, POWER AND INCINERATION Energy Applications Advanced 95102934 tive heat exchangers
in Industry
sealing technology
for rotary regenera-
Energy World, Feb. 1995, (225), p. 5. A short article on rotary regenerative
95102935
Alternative
heat exchangers.
ironmaking
processes
Proc. Prod Liquid Iron Using Coal Workrhop, Allied Chatterjee, A. Publ., New Delhi, India, 1994, 17-40. The author discusses processes which aim to produce iron without going through the classical blast furnace and the accompanying sinter and coke making facilities. The aper covers direct reduction, smelting reduction, mini blast furnaces an dp.Iron carbide production.
95102936 InJection
Blast
furnace
practice
with
pulverized
Chin, H. el al., (Assigned to) Sumitomo Metal Ind., JAP. JP.O6,220,510, Aug. 1994.
coal Par.
95/02937 servation
Computer model for weight loss and energy conin a fresh-produce refrigerated store Devres, Y. 0. and Bishop, C. F. Applied Energy, 1995,50, (2), 97-117. A computer model is described for calculating energy consumption and moisture loss. The model uses data from an actual potato store in the Cambridge region of the UK. The differences between actual and calculated ower consumption values for 1989-1990 and 1990-1991 seasons are +l.O bzo and -2.3% respectively. For the whole storage season, the weight loses are 5.09% and 5.02% for the 1989-1990 and 1990-1991 seasons, respectively.
A numeiical model of a direct-contact evaporator is developed, which is used to calculate performance information about direct-contact heat transfer between a rising dispersed refrigerant and a counterflow continuous fluid. Results are compared with the existing experimental data. The numerical scheme invoives slicing the column of ihe evaporator into a finite number of horizontal slices and applying continuity, population, and energy balances to each slice. Temperature and holdup ratio distributions through the evaporator are obtained for the operation of a O.l-m-diameter column, using n-butane as the dispersed refrigerant and distilled water as the continuous fluid. 95102943 Ensiiing of microwave (Bromus Inermls) Baintner. F. et al.. Bioresource Technoloav. In this paper the efiect of microwave radiat& fermentation and silage quality of brome reported.
treated
brome
grass
1994. 50. (2). 91-95. on thk epiihp‘hyiicmicroflora, grass (Bromus inermis) is
95102944 Faster and more accurate industrial robots with the new S4 controller MadesateriA. ABE Review, 1995, (2), 31-34. Describes how ABB has developed a new controller for industrial robots -dubbed S4 - which combines rapid, accurate robot motion and pathfollowing with user-friendliness and capability for easy customization. These characteristics are based on new computer software that allows fimctions to be improved in the future without interfering with the overall program structire. Also new is the improved man-mac&e communication for different application areas. S5 represents the fourth generation of ABB robot controllers. Fully developed iaminar heat transfer In circuiar95102945 segment ducts with unifdrm wail temperature Manglik, R. M. and Berales, A. E. Numerical Hear Transfer, - PartA, Nov. 1994; 26, (5), 499-519.Heat transfer to constant-property, fully developed, laminar flows in circular-segment ducts with uniform wall temperatures (T) has been analyzed. Besides representing a compact surface, the segment duct geometry models insert. Two the flow cross section of a circular tube with a straight-ta variations in the T thermal boundary condition are wnS1Jeered: constant axial and circumferential wall temperature, and constant temperature on the curved surface but an adiabatic flat wall.
Fuel and Energy Abstracts
May 1996
211
95102931 Surface-adaptive free surface flows Th;:,;OL.
finite-volume
Process heating, power and incineration
method for solving
et al., Numerical Heat Transfer, Part B, Dec. 1994, 26, (4),
Presents a method for solving the mimitive-variable eauations of motion for viscous, incompressible, gee-&face flows. The cdmputational mesh defines, quadrilaterals that are used as the control volumes in a finitevolume method in which the mesh moves to adapt to the free surface. Dependent variables are w-located at the centre of each volume. The strength of the present method results from the innovative way in which the control volume comers, which defines the surface location, are moved by appl ing a ‘natural’ closure of the mass and momentum equations along the su K ace. This avoids the need for a separate kinematic condition while ensuing that the kinematic condition is exactly satisfied.
95102932
Tailor-made
CHP: Energy saving Gas (Netherlands), Dec. 1994, 114, (12),
Hof, H. and Van Der Ploeg, P. 638-639. (In Flemish)
Response of EnergieNed and SEP spokesman Hans Hof and Pieter van der Ploeg to the Gasunie article ‘Tailor-made CHP outdoing district heating’ in the October issue of GAS magagine. The authors discuss the benefits of district heating, like flexibility in heat demand changes and the application of the best and cleanest production technologies. Moreoever, they think for the time being high-efficiency boilers will continue to play a major role.
95102933 energy
Tailor-made
co-generation
important
to
save
Beeldman, M. and Schaeffer, G. J. Gas (Netherlands), Feb. 1995, 115, (2), 26-28. (In Flemish) The utilisation of w-generation has to be assessed for each situation. According to ECN, co-generation projects have to be assessed on the basis of so-called weighing variables such as heat demand, reqti :d electrical power, electricity generated nationally and available mont , . This way, energy savings can be maximized. The parties involved can also determine the variables that should get most attention. Anyway, ECN warns the parties in the energy sector against relying too much on their own current interests. It is therefore advisable that the Government assumes a guiding role in developing an adequate vision on the energy supply in the Netherlands.
(energy applications
in industty)
95102930 Cooling parameters snd film conductances of sohericai oroducts cooled in an alr flow dincer, I. ‘Applied Energy, 1995, 50, (3), 269-280. In this study, a methodology to determine cooling-process parameters (i.e. lag factor, cooling coefficient, half cooling time and seven-eighths cooling time) and an analytical model for determining film wnductances during cooling of spherical food products were proposed. Temperature measurements at the centres of the spherical products, which were carried out in the experimental investigation, were used to determine practical cooling process parameters and to test the film conductance of the present model. The results indicated that the cooling-process parameters varied and the film wnductances decreased with a positive increment in the flow velocity of the air. 95102939 Corrosion of siilcon carbides by ash and vapor in a coal combustion environment Senior, C. L. et al., Ceram. Trans., 1994, 42, 335-342. To increase the efficiency of indirectly-fired coal-fueled power systems, the workin fluid must be heated to higher temperatures than is resently possible. d e largest escalations in temperature will wme with tg e use of a ceramic heat exchangers. The US De artment of Energy is supportin project to develop a coal-fired, lug .g performance power system fat employs a high temperature ceramic air heater. One wncem for this system is wrrosion of the ceramic by ash and alkali vapour at temperatures below 1300K. 95102940 Deashing of coal liquids by sonically assisted filtration Slomka, B. J. Prepr. Pap.-Am. Chem. Sot., Div. Fuel Chem., 1994, 39, (4). 1223-1227. Describes a state-of-the-art crossflow filter utilizing a 2-micron porosity stainless steel tubes as the filtration medium which was built and used in the deashing tests. 95102941 Deveio ments in alternative ironmsking and hlgh blast furnace coal Pnjection, Maizieres-ies-Met& 20-21 December 1993, Comm. Eur. Communiries, EUR.155821, CEC, Luxembourg, 1994, 187 PP. 95fQ2942 Direct-contact heat transfer between a rising dispersed phase in a counterflow stream t;+_Fi2 et al., Numerical Heat Transfer, Parr A, Dec. 1994, 26, (6),
11 PROCESS HEATING, POWER AND INCINERATION Energy Applications Advanced 95102934 tive heat exchangers
in Industry
sealing technology
for rotary regenera-
Energy World, Feb. 1995, (225), p. 5. A short article on rotary regenerative
95102935
Alternative
heat exchangers.
ironmaking
processes
Proc. Prod Liquid Iron Using Coal Workrhop, Allied Chatterjee, A. Publ., New Delhi, India, 1994, 17-40. The author discusses processes which aim to produce iron without going through the classical blast furnace and the accompanying sinter and coke making facilities. The aper covers direct reduction, smelting reduction, mini blast furnaces an dp.Iron carbide production.
95102936 InJection
Blast
furnace
practice
with
pulverized
Chin, H. el al., (Assigned to) Sumitomo Metal Ind., JAP. JP.O6,220,510, Aug. 1994.
coal Par.
95/02937 servation
Computer model for weight loss and energy conin a fresh-produce refrigerated store Devres, Y. 0. and Bishop, C. F. Applied Energy, 1995,50, (2), 97-117. A computer model is described for calculating energy consumption and moisture loss. The model uses data from an actual potato store in the Cambridge region of the UK. The differences between actual and calculated ower consumption values for 1989-1990 and 1990-1991 seasons are +l.O bzo and -2.3% respectively. For the whole storage season, the weight loses are 5.09% and 5.02% for the 1989-1990 and 1990-1991 seasons, respectively.
A numeiical model of a direct-contact evaporator is developed, which is used to calculate performance information about direct-contact heat transfer between a rising dispersed refrigerant and a counterflow continuous fluid. Results are compared with the existing experimental data. The numerical scheme invoives slicing the column of ihe evaporator into a finite number of horizontal slices and applying continuity, population, and energy balances to each slice. Temperature and holdup ratio distributions through the evaporator are obtained for the operation of a O.l-m-diameter column, using n-butane as the dispersed refrigerant and distilled water as the continuous fluid. 95102943 Ensiiing of microwave (Bromus Inermls) Baintner. F. et al.. Bioresource Technoloav. In this paper the efiect of microwave radiat& fermentation and silage quality of brome reported.
treated
brome
grass
1994. 50. (2). 91-95. on thk epiihp‘hyiicmicroflora, grass (Bromus inermis) is
95102944 Faster and more accurate industrial robots with the new S4 controller MadesateriA. ABE Review, 1995, (2), 31-34. Describes how ABB has developed a new controller for industrial robots -dubbed S4 - which combines rapid, accurate robot motion and pathfollowing with user-friendliness and capability for easy customization. These characteristics are based on new computer software that allows fimctions to be improved in the future without interfering with the overall program structire. Also new is the improved man-mac&e communication for different application areas. S5 represents the fourth generation of ABB robot controllers. Fully developed iaminar heat transfer In circuiar95102945 segment ducts with unifdrm wail temperature Manglik, R. M. and Berales, A. E. Numerical Hear Transfer, - PartA, Nov. 1994; 26, (5), 499-519.Heat transfer to constant-property, fully developed, laminar flows in circular-segment ducts with uniform wall temperatures (T) has been analyzed. Besides representing a compact surface, the segment duct geometry models insert. Two the flow cross section of a circular tube with a straight-ta variations in the T thermal boundary condition are wnS1Jeered: constant axial and circumferential wall temperature, and constant temperature on the curved surface but an adiabatic flat wall.
Fuel and Energy Abstracts
May 1996
211