ǫǰǡǟVol. 2: )3125*ĄǓġ21౉ȤɢɍɺˋʺʣɺɈဖຣ༂๙ൿɂȷɈॄ༃ဿ‫ݛ‬Ʌ࢒ɖȳ‫ޢ‬ჶߤ౯੬ɂ
QFFL ୃ૕ʋĜʞɻˋʈɈ‫ࣗ܆‬Ỉ࠾ࡼࡧ࢔ࣥࣔࢽ࢔ࡢἛ㦐⇕ఏ㐩࡜ࡑࡢ⤒ᖺኚ໬࡟ཬࡰࡍ⏺㠃άᛶ๣࡜
PEEK ᶞ⬡ࢥ࣮ࢸ࢕ࣥࢢࡢᙳ㡪
Effect of a Surface ± Active Agent and PEEK Resin Coating on Nucleate Boiling
Heat Transfer and its Secular Change in Water and Ammonia஭ୖ ฼᫂ 1㸦ஂ␃⡿ᕤ኱㸧㸪᭷㤿༤ྐ 2㸦బ኱ᾏ࢚ࢿ◊㸧㸪㛛ฟ ᨻ๎ 3㸦஑኱Ỉ⣲⛉◊㸧ᑠᒣᖾᖹ 2㸦బ኱ᾏ࢚ࢿ◊㸧Toshiaki INOUE1, Hiroshi Arima2, Kohei Koyama2 and Masanori MONDE3
1
Dept. of Mech. Eng., Kurume Inst. of Tech., 2228 Kamitsu Kurume Fukuoka
2
Dept. of Mech. Eng., Saga Univ., 1 Honjou Saga
3
HYDROGENIUS.,Kyushu Univ. 744 Motooka Nishi-ku Fukuoka
A long - term change of nucleate boiling heat transfer coefficients in water and ammonia have beenmeasured when a surface - active agent was added into water and those have been measured on a heatedwire that PEEK (Poly Ether ࣭Ether ࣭Keton) resin was coated in ammonia.

The experiment has been

carried out using a thermosyphon with a plain heated surface and a pool boiling vessel with a heated finewire.

The effect of the surface - active agent and PEEK coating on the nucleate boiling heat transfer

coefficient and time variation of the nucleate boiling heat transfer coefficient were investigatedexperimentally for the surfactant concentration, CS = 0 and 1000 ppm.

The result shows that thenucleate boiling heat transfer coefficient never changes for a month in pure water and in ammonia with theheated wire coated by PEEK resin.

On the other hand, the boiling heat transfer coefficient decreases

gradually till the end of operation in water with the surfactant. The surfactant incresed the nucleate boilingheat transfer and PEEK resin decreased one.

Key Words : Nucleate Boiling, Heat Transfer, Surface-Active agent, Secular Change, PEEK Coating ࡲ࠼ࡀࡁInoue ࡽ(1)ࡣ࢔ࣥࣔࢽ࢔/Ỉΰྜ፹య࡟⏺㠃άᛶ๣ࢆῧຍࡍࡿࡇ࡜ࡼࡗ࡚࢔ࣥࣔࢽ࢔ࡢప⃰ᗘᇦ࠾ࡼࡧప⇕ὶ᮰ᇦ࡟࠾࠸࡚㸪Ἓ㦐⇕ఏ㐩ࡀಁ㐍ࡉࢀࡿࡇ࡜ࢆሗ࿌ࡋࡓ㸬୍᪉㸪⏺㠃άᛶ๣ࢆΰྜࡍࡿࡇ࡜࡟ࡼࡗ࡚㸪ఏ⇕㠃ࡢᛶ≧ࡀ᫬㛫ࡢ⤒㐣࡜࡜ࡶ࡟ኚ໬ࡋ࡚Ἓ㦐⇕ఏ㐩⋡ࡀኚ໬ࡍࡿࡇ࡜ࡀ⪃࠼ࡽࢀࡿ㸬ࡲࡓ㸪࢔࣑ࣝࢽ࣒࢘ࡣ⇕ఏᑟ⋡ࡀⰋ࠸ࡢ࡛㸪⇕஺᥮ჾࡢᮦᩱ࡜ࡋ࡚ᗈࡃ⏝࠸ࡽࢀ࡚࠸ࡿ㸬ࡋ࠿ࡋ㸪࢔ࣥࣔࢽ࢔ࡀ࢔࣑ࣝࢽ࣒࢘ࢆ⭉㣗ࡉࡏࡿࡇ࡜ࡣࡼࡃ▱ࡽࢀ࡚࠸ࡿ㸬ࡑࡇ࡛㸪ᮏ◊✲࡛ࡣ࢔ࣥࣔࢽ࢔࡟ᑐࡋ࡚⭉㣗ࢆ㑊ࡅࡿࡓࡵ࡟ຍ⇕㠃ࡢ⾲㠃࡟ PEEK (Poly Ether ࣭Ether ࣭Keton)ᶞ⬡ࢆࢥ࣮ࢸ࢕ࣥࢢࡋ࡚㸪ࡲࡓ㸪Ἓ㦐⇕ఏ㐩⋡ࢆಁ㐍ࡉࡏࡿࡓࡵ࡟Ỉ࡟⏺㠃άᛶ๣ࢆῧຍࡋ࡚Ἓ㦐⇕ఏ㐩⋡ࢆ⣙୍ࣧ᭶㛫㐃⥆ࡋ࡚ ᐃࡋࡓ㸬ࡑࡋ࡚㸪⏺㠃άᛶ๣࡜ PEEK ᶞ⬡ࢥ࣮ࢸ࢕ࣥࢢࡀỈ࡜࢔ࣥࣔࢽ࢔ࡢἛ㦐⇕ఏ㐩⋡࡜ࡑࡢ⤒ᖺኚ໬࡟ཬࡰࡍᙳ㡪ࢆᐇ㦂ⓗ࡟᫂ࡽ࠿࡟ࡋࡓ㸬
2. ᐇ㦂⿦⨨࠾ࡼࡧ᪉ἲ2.1 ᐇ㦂⿦⨨  ᮏ◊✲࡛ࡣ 2 ྎࡢᐇ㦂⿦⨨ࢆ⏝࠸࡚Ἓ㦐⇕ఏ㐩ࢹ࣮ࢱࢆ᥇ྲྀࡋࡓ㸬ᅗ 1 ࡟⇕ࢧ࢖ࣇ࢛ࣥࢆ฼⏝ࡋࡓୖྥࡁᖹᯈຍ⇕㠃ࢆᣢࡘᐇ㦂⿦⨨ࢆ♧ࡍ㸬ᮏᐇ㦂⿦⨨ࡣจ⦰㒊㸪᩿⇕ࡉࢀࡓ㐃⤖⟶㸦᩿⇕㒊㸧࠾ࡼࡧ⵨Ⓨ㒊࡛ᵓᡂࡉࢀࡓୗ➃ຍ⇕ᆺ⇕ࢧ࢖ࣇ࢛࡛ࣥ࠶ࡿ㸬ຍ⇕㠃ձ࡛Ⓨ⏕ࡋࡓ⵨Ẽࡀ㐃⤖⟶յࡢ୰ࢆୖ᪼ࡋ࡚จ⦰㒊࡬㐩ࡋ㸪จ⦰ჾշ࡟ࡼࡗ࡚จ⦰ࡉࡏࡽࢀࡿࡇ࡜࡟ࡼࡗ࡚ヨ㦂ᐜჾෆࡣ㣬࿴≧ែ࡟ಖࡓࢀࡿ㸬ࡋࡓࡀࡗ࡚㸪㐃⤖⟶ࡢ୰ࡣ⟶ࡢ୰ኸࢆ⵨Ẽࡀୖ᪼ࡋ㸪࿘ᅖࢆᾮࡀୗ㝆ࡍࡿẼᾮᑐྥὶ࡟࡞ࡿ㸬ᅗ 2 ࡟⵨Ⓨ㒊ຍ⇕㠃ࡢヲ⣽ࢆ♧ࡍ㸬⵨Ⓨ㒊࡟ࡣ

89‫ۈ‬௫ᆀც -!ᄵ༣གષ -!ழટড়ိ -!ᄑ୸౱ഥ┤ᚄ Dh = 25 mm ࡢ㖡〇ࡢᖹᯈຍ⇕㠃ձࡀ⿦╔ࡉࢀ࡚࠸ࡿ㸬ຍ⇕㠃࡬ࡣ㖡ࣈࣟࢵࢡղࡢ᭱ୗ㒊࡟ྲྀࡾ௜ࡅࡽࢀࡓࣉ࣮ࣞࢺࣄ࣮ࢱճ࠿ࡽ⇕ࡀ౪⤥ࡉࢀࡿ㸬࿘ᅖ࡬ࡢ⇕ᦆኻࢆ㜵Ṇࡍࡿࡓࡵ࡟㖡ࣈࣟࢵࢡղࡢ࿘ᅖ࡟࣮࣋ࢡࣛ࢖ࢺࢆྲྀࡾ௜ࡅ㸪ࡉࡽ࡟ࡑࡢ࿘ࡾࢆ᩿⇕ᮦ࡛そࡗ࡚࠸ࡿ㸬ࡲࡓ㸪ᅗ 2 ࡟♧ࡍࡼ࠺࡟㖡ࣈࣟࢵࢡ࡟ࡣ 3 ᮏࡢ⇕㟁ᑐ ᗘィ(T1,T2࠾ࡼࡧ T3)ࡀຍ⇕㠃࠿ࡽ 1.3㸪5.7 ࠾ࡼࡧ 11.4 mm ࡢ఩⨨࡟ᇙࡵ㎸ࡲࢀ࡚࠸ࡿ㸬ࡇࢀࡽ 3 ⟠ᡤࡢ ᗘ࠿ࡽຍ⇕㠃ᗘ࡜⇕ὶ᮰ࢆồࡵࡿ㸬㐃⤖⟶ࡣ⵨Ẽࡢୖ᪼୰࡟จ⦰ࡋ࡞࠸ࡼ࠺࡟᩿⇕ࡉࢀ࡚࠾ࡾ㸪ࡑࡢෆᚄࡣ 4 mm 㛗ࡉࡣ 250mm ࡛࠶ࡿ㸬จ⦰㒊ࡢỈࡣ⿵ຓࣄ࣮ࢱն࡛⣔ࡢᅽຊ 0.1 MPa ࡟ᑐࡍࡿ㣬࿴ ᗘ㸦98 - 100 Υ㸧࡟ಖࡓࢀ࡚࠸ࡿ㸬ࡲࡓ㸪จ⦰㒊ࡢẼᾮ⏺㠃ࡣ㐃⤖⟶ୖ➃ࡼࡾ⣙ 250 mm ୖ᪉࡟タᐃࡋࡓ㸬ᅗ 3 ࡣỈᖹ⣽⥺ຍ⇕㠃ୖࡢࣉ࣮ࣝἛ㦐⇕ఏ㐩ࢆ ᐃࡍࡿࡓࡵࡢᐇ㦂⿦⨨࡛࠶ࡿࠋ㧗⇕ὶ᮰࠾ࡼࡧ㧗 ࡟⪏࠼ࡿࡓࡵ࡟ຍ⇕㠃࡟ࡣ࢔࣑ࣝࢽ࣒࢘ࡢ᭰ࡾ࡟⼥Ⅼࡢ㧗࠸┤ᚄ 0.3 mm ࡢⓑ㔠⥺ղࢆ⏝࠸㸪ࣈࣜࢵࢪᅇ㊰࡟⤌ࡳ㎸ࡲࢀ࡚᢬ᢠ ᗘィ࡜ࡋ࡚ࡶ฼⏝ࡉࢀࡿ㸬PEEK ᶞ⬡ࢥ࣮ࢸ࢕ࣥࢢࡢཌࡉࡣ ȝP ࡛࠶ࡿ㸬ヨ㦂ᐜჾձࡣᜏ ᵴճෆ࡟ỿࡵࡽࢀ࡚࠾ࡾ㸪ᜏ ᾮᚠ⎔⿦⨨մ࠿ࡽࡢᜏ ᾮ࡟ࡼࡗ୍࡚ᐃࡢ ᗘ࡟ಖࡓࢀ㸪࿘ᅖࡢ ᗘࡢᙳ㡪ࢆཷࡅ࡞࠸ࡼ
࠺࡟࡞ࡗ࡚࠸ࡿ㸬Ⓨ⏕ࡋࡓ⵨Ẽࡣจ⦰ჾն࡛จ⦰ࡉࡏࡽࢀ࡚ࣂࣝࢡᾮࡢ୰࡟ᡠࡾ㸪ヨ㦂ᐜჾෆࡣ㣬࿴≧ែ࡟ಖࡓࢀࡿ㸬 ᐇ㦂᪉ἲ  ヨ㦂ὶయࢆ㣬࿴ ᗘ࡟ಖࡗࡓᚋ㸪ຍ⇕㠃࡬ࡢ⇕ὶ᮰ࢆẁ㝵ⓗ࡟ୖ᪼ࡉࡏ㸪ࢧ࢖ࣇ࢛ࣥᆺ࡛ࡣ⇕ὶ᮰ࡀ 100 kW/m2㸪ࣉ࣮ࣝἛ㦐ᆺ࡛ࡣ 840 kW/m2 ࡟䐦㐩ࡋࡓࡇ࡜ࢆ☜ㄆࡋ࡚⣙㸯࠿᭶㛫௨ୖ㐃⥆㐠㌿ࢆ⾜ࡗࡓ㸬㐠㌿୰ࡣ 1 ᫬㛫㛫㝸࡛㐣⇕ᗘ࡜⇕ὶ᮰ࢆ ᐃ䐥ࡋࡓ㸬ᐇ㦂⿦⨨࡜ᐇ㦂᪉ἲࡢヲ⣽࠾ࡼࡧ ᐃࡢ⢭ᗘ䐤࡟ࡘ࠸࡚ࡣ⣽⥺ຍ⇕㠃ୖࡢࣉ࣮ࣝἛ㦐࡟ࡘ࠸࡚ࡣ
Inoue and Monde(4)࠾ࡼࡧ⇕ࢧ࢖ࣇ࢛ࣥࢆ⏝࠸ࡓᖹᯈຍ⇕㠃ୖࡢἛ㦐࡟ࡘ࠸࡚ࡣ Inoue and Monde(5)࡟ࡼࡗ

䐣

࡚㏙࡭ࡽࢀ࡚࠸ࡿࡢ࡛㸪ࡇࡇ࡛ࡣ┬␎ࡍࡿ㸬౑⏝ࡋ䐢ࡓỈࡣ㉸⣧Ỉ࡛࠶ࡿ㸬䐧

2.3 ⏺㠃άᛶ๣  ࢔ࣥࣔࢽ࢔Ỉ⁐ᾮࡢሙྜ㸪࢔ࣥࣔࢽ࢔Ỉ⁐ᾮࡼࡾࡶゎ㞳ᐃᩘࡢ኱ࡁ࠸άᛶ๣ࡲࡓࡣ䐟࢖࢜ࣥ࡟ゎ㞳ࡋ࡞࠸άᛶ๣ࢆ౑⏝ࡍࡿᚲせࡀ࠶ࡿ㸬䐠ࡇࡢ⌮⏤࡟ࡘ࠸࡚ࡣ Inoue et al.(2)࡟ࡼࡗ࡚ヲࡋࡃ㏙࡭ࡽࢀ࡚࠸ࡿ㸬ᮏ◊✲࡛ࡣ࢔ࣥࣔࢽ࢔Ỉ⁐ᾮࡣ౑⏝䐡ࡋ࡞࠸ࡅࢀ࡝ࡶ㸪௒ᚋࡢ◊✲࡟࠾࠸࡚࢔ࣥࣔࢽ࢔

Fig.1 Experimental apparatus (Thermo syphon Type)
Thermostat liquidձHeated plate ղCopper block ճHeaterմInsulator յConnecting pipe նAuxiliary heater
շConden

մ

T1
ո

ն
շ
չ
պ

ղ
ձ

Lh
Heated surfaceձDh㼀㻠㻌
Thermocouplesչ㼀㻝㻌㼀㻞㻌
㼀㻟㻌

Copper blockղ

Plate heaterճ

ElectrodeFig.2 Cross- sectional view of the evaporator section

ճT2
յ
Fig.3 experimental apparatus (Pool boiling type)ձPressure vessel ղHeated wire(Platinum)ճThermostat bath մThermostat bath with pumpյPressure gauge նCondenser շCooling pipe   ոValves չView Window պElectrodeT1,T2, T3. Thermocouples౉ȤɢɍɺˋʺʣɺɈဖຣ༂๙ൿɂȷɈॄ༃ဿ‫ݛ‬Ʌ࢒ɖȳ‫ޢ‬ჶߤ౯੬ɂ
QFFL ୃ૕ʋĜʞɻˋʈɈ‫ࣗ܆‬Ỉΰྜ፹య࡬ࡢᒎ㛤ࡢࡓࡵ࡟㸪㠀࢖࢜ࣥ⣔ࡢࣇࢵ⣲⣔⏺㠃άᛶ๣ࢆ౑⏝ࡋࡓ㸬ࡑࡢᡂศࡣ 30 %ࡢ Perfluoroalkyl໬ྜ≀࡛㸪⁐፹࡜ࡋ࡚ 30 %ࡢ࢖ࢯࣉࣟࣃࣀ࣮ࣝ࠾ࡼࡧ ࡢỈࡢΰྜ⁐ᾮ࡛࠶ࡿ㸬ࡑࡢ௚ࡢ໬Ꮫ≀⌮ⓗ࡞ᛶ㉁࡟ࡘ࠸࡚ࡣ኱ṓ  ࡟ࡼࡗ࡚ヲࡋࡃ㏙࡭ࡽࢀ࡚࠸ࡿ㸬ᐇ㦂⤖ᯝᅗ  ࡣࢧ࢖ࣇ࢛ࣥᆺࡢᐇ㦂⿦⨨࡛ ᐃࡉࢀࡓᐇ㦂ࢹ࣮ࢱ࡛࠶ࡾ㸪ᅽຊ 0.1 MPa ࡟࠾࠸࡚ 100 kW/m2 ୍ᐃࡢ⇕ὶ᮰࡛⣙୍ࣧ᭶㛫㐃⥆㐠㌿ࡋࡓ࡜ࡁࡢỈࡢἛ㦐⇕ఏ㐩⋡ࡢ᫬⣔ิኚ໬ࢆ♧ࡍ㸬⏺㠃άᛶ๣⃰ᗘ CS = 0 ppm ࡢሙྜࡣ୍ࣧ᭶ࡢ㛫࡟Ἓ㦐⇕ఏ㐩⋡ࡣ㐠㌿㛤ጞ┤ᚋ࠿ࡽ⣙ 10 - 13 kW/(m2࣭K)ࡢኚືෆ࡛࡯ࡰ୍ᐃ࡛࠶ࡗࡓ㸬୍᪉㸪CS = 1000ppm ࡛ࡣ㐠㌿㛤ጞ┤ᚋ࠿ࡽἛ㦐⇕ఏ㐩⋡ࡀపୗࡋጞࡵ㸪ᐇ㦂⤊஢ࡲ࡛ḟ➨࡟పୗࡋ⥆ࡅ㸪ᐇ㦂⤊஢᫬ࡢ⣙  ᫬㛫ᚋ࡟ࡣ⣙ పୗࡋࡓ㸬ࡲࡓ㸪ᅗ 4 ࡼࡾ⏺㠃άᛶ๣ࡢῧຍ࡟ࡼࡗ࡚Ἓ㦐⇕ఏ㐩⋡ࡀୖ᪼ࡍࡿࡇ࡜ࡀศ࠿ࡿ㸬ࡇࡢ⏺㠃άᛶ๣ῧຍ࡟ࡼࡿἛ㦐⇕ఏ㐩⋡ୖ᪼ࡢ࣓࢝ࢽࢬ࣒࡟ࡘ࠸࡚ࡣ Inoue et al.(6)࡟ࡼࡗ࡚ヲ⣽࡟㏙࡭ࡽࢀ࡚࠸ࡿ㸬ࡲࡓ㸪⏺㠃άᛶ๣ࢆῧຍࡍࢀࡤ㸪Ἓ㦐⇕ఏ㐩⋡ࡢࣂࣛࢶ࢟ࡢ⠊ᅖࡀᗈࡃ࡞ࡿࡇ࡜ࡶศ࠿ࡗࡓ㸬ࡇࢀࡣ⏺㠃άᛶ๣ࡢ⃰ᗘศᕸࢆᣢࡘỈࡢᑐὶ࡟ࡼࡗ࡚ຍ⇕㠃ࡢ ᗘศᕸࡀ⏕ࡌ᫆ࡃ࡞ࡿ࠿ࡽ࡛࠶ࡿ࡜ᛮࢃࢀࡿ㸬
ᅗ 5 ࡣỈᖹ⣽⥺ୖࡢࣉ࣮ࣝἛ㦐⇕ఏ㐩⋡ࡢ ᐃࢹ࣮ࢱ࡛࠶ࡾ㸪࢔ࣥࣔࢽ࢔ࡢἛ㦐⇕ఏ㐩⋡ࡢ᫬㛫ኚ໬࡜ PEEKࢥ࣮ࢸ࢕ࣥࢢࡢᙳ㡪ࢆ♧ࡍ㸬ࢥ࣮ࢸ࢕ࣥࢢࢆ᪋ࡉ࡞࠸ሙྜࡣᐇ㦂㛤ጞᚋ⣙ 200 ᫬㛫ᚋ࡟⇕ఏ㐩⋡ࡀୖ᪼ࡋ㸪ࡑࡢᚋ⣙ 300 ᫬㛫ᚋࡲ࡛ࡣከᑡኚືࡋ࡞ࡀࡽ⇕ఏ㐩⋡ࡣ࡯ࡰ୍ᐃ࡛⤒㐣ࡋࡓᚋ㸪300 ᫬㛫ᚋ࠿ࡽࡣ⇕ఏ㐩⋡ࡀḟ➨࡟పୗࡋጞࡵ㸪⣙ 700 ᫬㛫ᚋ࡟ᐇ㦂㛤ጞ┤ᚋ࠿ࡽ⣙ పୗࡋࡓᚋ㸪㐠㌿⤊஢ࡢ 800 ᫬㛫ᚋࡲ࡛ 12.5 %௨ୖపୗ











Thermosyphon Type2Time hourFig.4 Effect of the surfactant on nucleate pool boiling heat transfer in water
for a long period (q = 100 kW/m2, P = 0.1 MPa)‫ۑ‬CS = 1000 ppm, ‫ڹ‬CS = 0 ppm

Non PEEK coating
Pool Boiling Type

PEEK coating






2.2 kW/(m K)2

4 kW/(m K)ࡍࡿࡇ࡜ࡣ࡞ࡃ୍ᐃࡢ⇕ఏ㐩⋡ࡀᣢ⥆ࡋࡓ㸬ࡇࢀࡣຍ⇕㠃ࡀ 200 ᫬㛫ᚋ࡟࢔ࣥࣔࢽ࢔࡛㐺ᗘ࡟ởࡉࢀ࡚ⓎἻࡋ᫆Time hourFig. 5 Effect of PEEK coating on nucleate boiling heat transfer in ammonia
for a long period (q = 840 kW/m2, P = 0.4 MPa ):21‫ۈ‬௫ᆀც -!ᄵ༣གષ -!ழટড়ိ -!ᄑ୸౱ഥ

ࡃ࡞ࡗࡓࡓࡵ࡟⇕ఏ㐩ࡀୖ᪼ࡋ㸪300 ᫬㛫ᚋ࡟ࡣᚎࠎ࡟ởࢀࡀ㐍⾜ࡋ࡚⇕ఏ㐩ࡀపୗࡋࡓࡶࡢ࡜ᛮࢃࢀࡿ㸬୍᪉㸪ࢥ࣮ࢸ࢕ࣥࢢࢆ᪋ࡋࡓሙྜࡣ㸪ᐇ㦂㛤ጞ┤ᚋ࠿ࡽ࡯ࡰ୍ᐃࡢ⇕ఏ㐩⋡ࡀ⥆ࡁ㸪ᐇ㦂⤊஢᫬ࡢ⣙ 36 ᪥ᚋࡲ࡛⇕ఏ㐩⋡ࡣ࡯࡜ࢇ࡝ኚ໬ࡋ࡞࠿ࡗࡓࠋࡲࡓ㸪ຍ⇕㠃࡟ 1ȝP ࡢ PEEK ᶞ⬡ࢆ⿕⭷ࡍࡿࡇ࡜࡟ࡼࡗ࡚㸪⇕ఏ㐩⋡ࡀ⣙ 120 %పୗࡍࡿࡇ࡜ࡀศ࠿ࡗࡓ㸬ࡉࡽ࡟㸪ᐇ㦂⤊஢ᚋ㸪ຍ⇕㠃ࡢ 3((. ᶞ⬡⿕⭷ࡢ๤ࡀࢀࡀほᐹࡉࢀࡓ㸬௨ୖࡢ⤖ᯝࡣ㸯ᅇࡢࡳࡢᐇ㦂࠿ࡽᚓࡽࢀࡓࢹ࣮ࢱ࡟ᇶ࡙࠸࡚࠸ࡿࡢ࡛㸪෌⌧ᛶࢆ☜࠿ࡵࡿࡓࡵ࡟㸪ࡉࡽ࡞ࡿᐇ㦂ࢆᚲせ࡜ࡍࡿ㸬ࡲࡓᮏ◊✲࡟ࡼࡗ࡚㸪ࡉࡽ࡟㛗᫬㛫ࡢ㐃⥆㐠㌿࡟ࡼࡿ⇕ఏ㐩⋡ࡢపୗࡀᠱᛕࡉࢀࡿࡇ࡜ࡀศ࠿ࡗࡓ㸬௒ᚋࡢ᳨ウㄢ㢟࡜ࡋࡓ࠸㸬ࡲ࡜ࡵ⣙୍ࣧ᭶㛫௨ୖࡢ㐃⥆᰾Ἓ㦐㐠㌿ࢆ⾜ࡗ࡚ḟࡢ⤖ᯝࢆᚓࡓ㸬ᮏᩥ࡜㔜࡞ࡗ࡚ỈࡢἛ㦐⇕ఏ㐩⋡ࡣ㐃⥆㐠㌿୰࡟࡯࡜ࢇ࡝ኚ໬ࡋ࡞࠸㸬Ỉ࡟⏺㠃άᛶ๣ࢆῧຍࡍࡿ࡜Ἓ㦐⇕ఏ㐩⋡ࡀྥୖࡍࡿࡀ㸪᫬㛫ࡢ⤒㐣࡜࡜ࡶ࡟ḟ➨࡟⇕ఏ㐩ࡀపୗࡍࡿ㸬࢔ࣥࣔࢽ࢔ࡢἛ㦐⇕ఏ㐩⋡ࡣ㐠㌿୰ 200 ᫬㛫ᚋ࡟ࢃࡎ࠿࡟ୖ᪼ࡋ㸪ࡑࡢᚋࡣᚎࠎ࡟పୗࡋ 700 ᫬㛫ᚋ࠿ࡽ㐠㌿⤊஢ࡢ⣙ 800 ᫬㛫ᚋࡲ୍࡛ᐃࡢ⇕ఏ㐩⋡ࡀᣢ⥆ࡍࡿ㸬ຍ⇕㠃࡟  ȝP ཌࡉࡢ 3((. ᶞ⬡ࢆ⿕⭷ࡍࡿࡇ࡜࡟ࡼࡗ࡚Ἓ㦐⇕ఏ㐩⋡ࡢ⤒ᖺኚ໬ࡣṤ࡝࡞࠸ࡀ㸪⇕ఏ㐩⋡ࡀ኱ࡁࡃ(120 %)పୗࡍࡿ㸬ཧ⪃ᩥ⊩(1) T. Inoue and M. Monde, Int. J. of Heat and Mass Transfer 55 (2012), 3395.
(2) T. Inoue, M. Monde, T. Kuwahara and Y. Teruya, Heat Transfer ± Asian Res. 40(1) (2011), 89.
(3) ኱ṓᖾ⏨, ▼ἜᏛ఍ㄅ, 32 ± 6 (1989), 277.
(4) T. Inoue and M. Monde, Wärme-und Stoffübertragung 29 (1994), 171.
(5) T. Inoue and M. Monde, Int. J. of Heat and Mass Transfer 52 (2009), 4519.
(6) T. Inoue, Y. Teruya and M. Monde, Int. J. of Heat and Mass Transfer 47 (2004), 5555.