|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Thermal performance of tubular heat exchanger with multiple twisted-tape inserts显示文摘The paper presents an experimental investigation on enhanced heat transfer and pressure loss characteristics by using single, double, triple, and quadruple twisted-tape inserts in a round tube having a uniform heat-fluxed wall.The investigation has been conducted in the heat exchanger tube inserted with various twisted-tape numbers for co- and counter-twist arrangements for the turbulent air flow, Reynolds number(Re) from 5300 to 24000. The typical single twisted-tape inserts at two twist ratios, y/w = 4 and 5, are used as the base case, while the other multiple twisted-tape inserts are at y/w = 4 only. The experimental results of heat transfer and pressure drop in terms of Nusselt number(Nu) and friction factor(f), respectively, reveal that Nu increases with the increment of Re and of twisted-tape number. The values of Nu for the inserted tube are in a range of 1.15–2.12 times that for the plain tube while f is 1.9–4.1 times. The thermal enhancement factor of the inserted tube under similar pumping power is evaluated and found to be above unity except for the single and the double co-twisted tapes. The quadruple counter-twisted tape insert provides the maximum thermal performance. | Suriya Chokphoemphun Monsak Pimsarn Chinaruk Thianpong Pongjet Promvonge | 2015 | Chinese Journal of Chemical Engineering2015，23，5： | 8 |
| 2 | 带翅片式涡流发生器的圆管内的传热强化(英文)显示文摘The article presents the influence of winglet vortex generators(WVGs)placed in the core flow area on thermal performance enhancement of a tube heat exchanger.The experiment was carried out in a uniform wall heat-fluxed tube by varying turbulent airflow for Reynolds number ranging from 5300 to 24000.In the present work,the WVGs with an attack angle of 30°were inserted into the test tube at four different winglet pitch ratios(RP=P/D)and three winglet-width or blockage ratios(RB=e/D).The experimental results at various RPand RBvalues were evaluated and compared with those for smooth tube and tubes with twisted tape or wire coil.The measurement reveals that the WVGs enhance considerably the heat transfer and friction loss above the plain tube,wire coil and twisted tape.The Nusselt number and friction factor increase with the increment of RBand Re but with the decreasing RP.The average Nusselt numbers for the WVGs with various RBare in the range of 2.03–2.34 times above the plain tube.The thermal performance for the WVGs is found to be much higher than that for the wire coil and twisted tape and is in a range of 1.35–1.59.Also,a numerical investigation is conducted to study the flow structure and heat transfer enhancement mechanisms in the winglet-inserted tube. | Suriya Chokphoemphun Monsak Pimsarn Chinaruk Thianpong Pongjet Promvonge | 2015 | Chinese Journal of Chemical Engineering2015，23，4： | 1 |
| 3 | Compound heat transfer enhancement of a dimpled tube with a twisted tape swirl generator显示文摘 | Chinaruk Thianpong Petpices Eiamsa-ard Khwanchit Wongcharee Smith Eiamsa-ard | 2009 | International Communications in Heat and Mass Transfer2009，，7： | 1 |
| 4 | Experimental investigation of heat transfer and flow friction in a circular tube fitted with regularly spaced twisted tape elements显示文摘 | Smith Eiamsa-ard Chinaruk Thianpong Pongjet Promvonge | 2006 | International Communications in Heat and Mass Transfer2006，，10： | 1 |
| 5 | Experimental investigation of heat transfer and flow friction in a circular fitted with regularly spaced twisted tape elements显示文摘 | Eiamsa-ard Smith Thianpong Chinaruk Promyonge Pongjet | 2006 | International Communications in Heat and Mass Transfer2006，33，10： | 1 |
| 6 | Experimental Investigation of Heat Transfer and Flow Friction in a Circular Tube Fitted with Regularly Spaced Twisted Tape Elements显示文摘 | Smith E Chinaruk T Pongjet P | 2006 | Int Commun Heat Mass Transfer2006，33，10： | 1 |
| 7 | Convective Heat Transfer in a Circular Tube with Short Length Twisted Tape Insert显示文摘 | Smith E Chinaruk T Petpices E | 2009 | Int Commun Heat Mass Transfer2009，36，4： | 1 |
| 8 | Convective heat transfer in a cir- cular tube with short -length twisted tape insert显示文摘 | Smith Eiamsa - ard Chinaruk Thianpong Petpices Eiamsa- ard | 2009 | International Communications in Heat and Mass Transfer2009，36，4： | 1 |
| 9 | Compound heat transfer enhancement of a dimpled tube with a twisted tape swirl generator显示文摘 | Chinaruk Thianpong Petpices Eiamsa-ard Khwanchit Wongcharee Smith Eiamsa-ard | 2009 | International Communications in Heat and Mass Transfer2009，，7： | 1 |
| 10 | 内带分散的V型翅片的热交换方管的强化传热(英文)显示文摘The article presents an experimental and numerical study on thermal performance enhancement in a constant heatfluxed square-duct inserted diagonally with 45° discrete V-finned tapes(DFT).The experiments were carried out by varying the airflow rate through the tested square duct with DFT inserts for Reynolds number from 4000 to 25000.The effect of the DFT with V-tip pointing upstream at various relative fin heights and pitches on heat transfer and pressure drop characteristics was experimentally investigated.Both the heat transfer and pressure drop were presented in terms of Nusselt number and friction factor respectively.Several V-finned tape characteristics were introduced such as fin- to duct-height ratio or blockage ratio(R_B=e/H = 0.075,0.1,0.15 and 0.2),fin pitch to duct height ratio(R_P= P/H=0.5,1.0,1.5 and 2.0) and fin attack angle,α = 45°.The experimental results reveal that the heat transfer and friction factor values with DFT inserts increase with the increment of R_B but the decrease of R_P.The inserted square-duct at R_B = 0.2 and R_P = 0.5 provides the highest heat transfer and friction factor while the one with R_B= 0.1 and R_P= 1.5 yields the highest thermal performance.Also,a numerical simulation was conducted to investigate the flow structure and heat transfer mechanism inside the tested duct with DFT inserts. | Watcharin Noothong Supattarachai Suwannapan Chinaruk Thianpong Pongjet Promvonge | 2015 | Chinese Journal of Chemical Engineering2015，23，3： | 1 |
| 11 | Heat Transfer and Thermal Performance Char acteristics of Heat Exchanger Tube Fitted with Perfo rated Twisted-Tapes显示文摘 | Chinaruk Thianpong Petpices Eiamsa-ard Smith Eiam sa-ard | 2012 | Heat Mass Transfer2012，，48： | 1 |
| 12 | Thermal characteristics in a heat exchanger tube fitted with dual twisted tape elements in tandem 显示文摘 | S]MITH Eiamsa-ard CHINARUK Thianpong PETPICES Eiamsa-ard | 2010 | International Journal of Heat and Mass Transfer2010，37，： | 1 |
| 13 | Thermal characteristics in a heat exchanger tube fitted with dual twisted tape elements in tandem显示文摘 | SMITH E CHINARUK T PETPICES E | 2010 | International Communication in Heat and Transfer2010，37，1： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员