在实验室实验研究了CaCO3和AlaOa或MgO混合污垢特性,考察了颗粒浓度、工质流速和水浴温度的影响.结果表明:混合污垢热阻值比纯粹的析晶污垢的污垢热阻值大,流速增大,其污垢热阻渐近值减小,颗粒浓度增大,混合污垢渐近值增大,但当浓度达到某一值后再增加时,混合污垢渐近值基本维持常数,水浴温度在实验范围内变化对结垢影响不大.
参考文献
| [1] | Epstein N.Fouling in Heat Exchangers[A].,1979:235-253. |
| [2] | Yang S R.Thermal Resistance Prediction of Precipitation Fouling Coexisting with Particulate Fouling[A].,1990:276-281. |
| [3] | Bansal B;Muller-Steinhagen H;Chen X D .Effect of Suspended Particles on Crystallization Fouling in Plate Heat Exchangers[J].ASME Journal of Heat Transfer,1997,119:569-574. |
| [4] | Mc-Garvey G B;Turner C W.Synergism Models for Heat Exchanger Fouling Mitigation[A].Italy,1997 |
| [5] | Wei Li;Ralph L. Webb .Fouling in enhanced tubes using cooling tower water Part II: combined particulate and precipitation fouling[J].International Journal of Heat and Mass Transfer,2000(19):3579-3588. |
| [6] | Ralph L. Webb;Wei Li .Fouling in enhanced tubes using cooling tower water Part I: ling-term fouling data[J].International Journal of Heat and Mass Transfer,2000(19):3567-3578. |
| [7] | Sheikholeslami R .Composite Fouling of Heat Transfer Equipment in Aqueous Media-Review[J].Heat Transfer Engineering,2000,21:34-42. |
| [8] | 徐志明,甘云华,张仲彬,杨善让.弧线管传热与污垢性能的实验研究[J].工程热物理学报,2004(03):496-498. |
| [9] | Glen N F;Howarth J H;Jenkins A M.The Estimation of Errors and Uncertainty in the Determination of Fouling Resistances[A].Italy,1997 |
| [10] | 杨善让;徐志明;孙灵芳.换热设备的污垢与对策[M].北京:科学出版社,2004:179-180. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%