Energy conversion in shape memory alloy heat engine part II: simulation

Jiujiang Zhu, N. G. Liang, W. M. Huang, K. M. Liew

Research output: Contribution to journalArticle

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Abstract

In this paper, a theoretical model proposed in Part I (Zhu et al., 2001a) is used to simulate the behavior of a twin crank NiTi SMA spring based heat engine, which has been experimentally studied by Iwanaga et al. (1988). The simulation results are compared favorably with the measurements. It is found that (1) output torque and heat efficiency decrease as rotation speed increase; (2) both output torque and output power increase with the increase of hot water temperature; (3) at high rotation speed, higher water temperature improves the heat efficiency. On the contrary, at low rotation speed, lower water temperature is more efficient; (4) the effects of initial spring length may not be monotonic as reported. According to the simulation, output torque, output power and heat efficiency increase with the decrease of spring length only in the low rotation speed case. At high rotation speed, the result might be on the contrary.
Original languageEnglish
Pages (from-to)133-140
Number of pages8
JournalJournal of Intelligent Material Systems and Structures
Volume12
Issue number2
DOIs
StatePublished - Feb 2001

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Flupenthixol
Acetanilides
Fusobacterium
Carbidopa
Hot Temperature
Torque
Water
Temperature
Judaism
Heat engines
Buccal Administration
Elephantiasis
Anthralin
Deception
Shape memory effect
Energy conversion

Cite this

Zhu, Jiujiang; Liang, N. G.; Huang, W. M.; Liew, K. M. / Energy conversion in shape memory alloy heat engine part II : simulation.

In: Journal of Intelligent Material Systems and Structures, Vol. 12, No. 2, 02.2001, p. 133-140.

Research output: Contribution to journalArticle

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author = "Jiujiang Zhu and Liang, {N. G.} and Huang, {W. M.} and Liew, {K. M.}",
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Energy conversion in shape memory alloy heat engine part II : simulation. / Zhu, Jiujiang; Liang, N. G.; Huang, W. M.; Liew, K. M.

In: Journal of Intelligent Material Systems and Structures, Vol. 12, No. 2, 02.2001, p. 133-140.

Research output: Contribution to journalArticle

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AB - In this paper, a theoretical model proposed in Part I (Zhu et al., 2001a) is used to simulate the behavior of a twin crank NiTi SMA spring based heat engine, which has been experimentally studied by Iwanaga et al. (1988). The simulation results are compared favorably with the measurements. It is found that (1) output torque and heat efficiency decrease as rotation speed increase; (2) both output torque and output power increase with the increase of hot water temperature; (3) at high rotation speed, higher water temperature improves the heat efficiency. On the contrary, at low rotation speed, lower water temperature is more efficient; (4) the effects of initial spring length may not be monotonic as reported. According to the simulation, output torque, output power and heat efficiency increase with the decrease of spring length only in the low rotation speed case. At high rotation speed, the result might be on the contrary.

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