Application of Shape Memory Alloy to Thermostatic Mixing Valve

Matsui, Haruna; Enoki, Masatoshi; Kato, Takashi

doi:10.1051/jp4/1995581253

Cited by 5 publications

(3 citation statements)

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“…The control accuracy and response speed of this kind thermostatic valve depends on expansion performance of the thermal sensor. The references (Wu et al, 2004;Matsui et al, 1995;Ohkata and Tamur, 1997) have studied for expansion properties of the memory of titanium alloy and proved the driving characteristics of the memory of titanium alloy is difficult to realize micro adjusting displacement and output big driving force of the thermostatic valve. The references (Li et al, 2006;He et al, 2008;Wang et al, 2003) have studied for expansion properties of the thermal paraffin and the results prove the thermal expansion interval of the thermal paraffin will become larger with the melting process change, so the flux is difficult to keep constant.…”

Section: Introductionmentioning

confidence: 99%

Design and Research of a New Thermostatic Valve

Hai-Chu¹,

Fang-Yi²,

Yin-Fa³

et al. 2014

RJASET

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This study designed a new type of intelligent thermostatic mixing valve which could keep the temperature and flux of the outlet water constant by the adaptive controller. It firstly established mathematical model of the valve about angle-flux and angle-temperature and then it applied the "Fluent" software to numerical simulation of the valve about flow field based on the two-equation turbulence model. Finally, it designed the intelligent controller hardware and developed the controlling software of the valve. With the controller and it finished experiments with the thermostatic valve prototype. The results of simulation and experiments prove that the correctness of the theoretical research and they can be used to improve designing of the thermostatic valve.

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Section: Introductionmentioning

confidence: 99%

Design and Research of a New Thermostatic Valve

Hai-Chu¹,

Fang-Yi²,

Yin-Fa³

et al. 2014

RJASET

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“…Manual adjustable mixing valve is difficult to control and keep the water temperature and flux constant, which causes the waste of the water and electricity. The thermostatic valve with thermal sensor is a kind of mechanical thermostatic valve in essence; the thermal sensor can be divided into two kinds: memory of titanium alloy [3][4][5] and thermal paraffin [6][7][8], and the controlling effect of accuracy and response speed is not obvious about this kind thermostatic valve.…”

Section: Introductionmentioning

confidence: 99%

Modeling and Simulation of Thermostatic Mixing Valve

Chen

Zhang

et al. 2013

AMM

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It researched a new type of intelligent thermostatic mixing valve which could keep the temperature and flux of the valve outlet water constant through the adaptive controller. It firstly established the mathematical model about angle - flux and angle - temperature of the valve. And then it based on thekεturbulence model and applied Fluent software to numerical simulation of the valve about the flow field. Finally, it compared the simulation results with the calculated value. The results show that they are basically consistent, prove the correctness of the theoretical research, and can be used to improve designing of the thermostatic valve.

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“…Some studies can be found in the literature but they deal with thermostatic valves associated to refrigeration or air conditioning systems, as well as with the use of shape memory materials for temperature control in thermostatic mixers [4,5].…”

Section: Introductionmentioning

confidence: 99%