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process efficiency

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430001
EISBN: 978-1-62708-253-2
.... Efficiency of heat transfer can be further improved by using finned tubes instead of tubes with plain surfaces. The water can be circulated through the tubes a number of times for better results. If the waste heat in the exhaust gases is insufficient for generating the required amount of process steam...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smfpa.t53500227
EISBN: 978-1-62708-317-1
... and springback effects and the possibility to use inertia locking mechanisms in the tool design, allowing the use of smaller-capacity presses. Furthermore, due to the short forming time, the process can be considered to be adiabatic and the forming heat can be used more efficiently for deformation than...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050057
EISBN: 978-1-62708-311-9
... the dimensions and shape of the workpiece, number of workpieces to be heated, hardness pattern desired, production process to be used (such as single shot or scanning), frequency and power input, how the workpiece is to be quenched, and coil-life considerations. Table 4.1 shows the efficiency of different...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050317
EISBN: 978-1-62708-311-9
... is coupled to the workpiece, the higher the coil efficiency. Thus, while tight gaps are important, in practice the process itself determines the coupling as a result of the spacing needed to keep the workpiece from hitting the coil. Coupling distances can vary from as close as 0.75 mm (0.030 in.) to 25 mm (1...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.tb.ahsssta.t53700249
EISBN: 978-1-62708-279-2
... to reduce the iron ore to crude iron in the blast furnace. This is also the process that consumes the most energy. Since 1975, energy efficiency methods have led to reductions of approximately 50% of the energy required to produce a ton of crude steel. There are three production routes for manufacturing...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1988
DOI: 10.31399/asm.tb.eihdca.t65220315
EISBN: 978-1-62708-341-6
... competitor, gas-fired furnace heating. Several typical examples are provided to illustrate the economic considerations in design and application of induction heating processes. cost analysis gas-fired furnaces induction heating process economics Induction heating affords a rapid, efficient...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2022
DOI: 10.31399/asm.tb.tstap.t56040020
EISBN: 978-1-62708-428-4
... the combination of several thermoelectric elements efficient at different temperature levels to broaden the useful temperature range and increase the output voltage. They are typically produced by powder metallurgical methods including sintering processes, which involve relatively long processing times at high...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050215
EISBN: 978-1-62708-311-9
... surface to core center. Table 11.1 shows frequency efficiency versus diameter of a round bar. In addition to the methods used by Tudbury ( Ref. 4 ), the allowable temperature differential permits the power supply output ratings to be selected. The process involves selecting the frequency and calculation...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.tb.aacppa.t51140001
EISBN: 978-1-62708-335-5
... Process Recycling and its impact in life-cycle studies are increasingly important considerations in materials selection (Ref 5). The manner The succeeding chapters review the substantial portfolio of alu- in which energy efficiency can be directly and indirectly affected minum casting alloys available...
Image
Published: 01 June 2016
Fig. 3.24 Impact and critical velocities as a function of particle diameter calculated for two different process conditions in cold spraying of copper. Note that typical particle size ranges and deposition efficiencies are different for the two cases. DE, deposition efficiency. Source: Ref More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430017
EISBN: 978-1-62708-253-2
... coupled to it. The mechanical energy of the turbine is converted into electrical energy. In order to improve the thermal efficiency and overall economy of the process, the steam at the exit end of the low-pressure (LP) turbine is condensed and the condensed water is recirculated to the boiler after...
Image
Published: 01 June 2016
Fig. 2.13 SEM micrograph of a titanium-molybdenum composite cold sprayed with nitrogen at a process gas pressure of 4.2 MPa (610 psi) and a process gas temperature of 930 °C (1700 °F). The volume content of 50% Mo in the powder blend was reduced to 41% in the final coating at an overall More
Image
Published: 01 June 2016
Fig. 2.14 (a) Individual deposition efficiencies (DE) and (b) hard-phase contents in the powders and the coatings for cold spraying copper-tungsten blends of similar particle-size cuts. Cold spraying was performed with nitrogen at a process gas pressure of 4 MPa (580 psi) and a process gas More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1988
DOI: 10.31399/asm.tb.eihdca.t65220241
EISBN: 978-1-62708-341-6
... energy efficiency. At other times, the high heating rates characteristic of induction are needed for processing of nonconductors. Three broad methods of accomplishing such objectives are described in this chapter. They make use of devices known as flux concentrators, shields, and susceptors. Flux...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1988
DOI: 10.31399/asm.tb.eihdca.t65220085
EISBN: 978-1-62708-341-6
...," Proc. Energy Seminar/Workshop on New Concepts in Energy Conservation and Productivity Improvement for Industrial Heat Processing Equipment, Chicago, March, 1982 ( Ref 4 ) Fig. 6.2(c) Coil efficiency for induction heating of round bars as a function of bar diameter, size of air gap between...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110032
EISBN: 978-1-62708-247-1
... are all key ingredients for strategic development teams. Another factor in the process is the increasing influence of external standards and expectations such as EIA Standard 671, CIQ-C, and ISO-900x/1400x. Continuous process improvement in terms of cycle time, accuracy, and financial efficiency also...
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Published: 01 December 2015
corrosion probes inserted into the firewall are used to directly monitor boiler tube degradation online and in real-time and to optimize the process for maximum efficiency and tube life. Source: Ref 136 More
Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2023
DOI: 10.31399/asm.tb.ceeg.t59370145
EISBN: 978-1-62708-447-5
... for these operations is critical for energy efficiency and minimizing metal loss due to oxidation. The cost of aluminum alloys for these processes varies, ranging from 45 to 65% of the total manufacturing cost. Therefore, it is important to select the right melting equipment for minimum melting loss. Achieving...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050009
EISBN: 978-1-62708-311-9
... temperature for carbon steels. Source: Ref 2 Skin Effect and Reference Depth Induction heating occurs when an electrical current (eddy current) is induced into a workpiece that is a poor conductor of electricity. For the induction heating process to be efficient and practical, certain...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2011
DOI: 10.31399/asm.tb.cfw.t52860007
EISBN: 978-1-62708-338-6
... system could be indexed so a cured part could be removed for postcure processing as a newly wound part was inserted for curing. With this higher-volume curing capacity, the extraction system for pipes and tubes required increased efficiency. Extractors were developed to remove a part off the mandrel...