铝制沐浴水热回收器的初步设计

对一种新型的铝制沐浴水热回收器进行初步设计。该沐浴水热回收器具有成本低,回收效率高等优点。介绍其工作原理,并以某三口之家为例,计算该热回收器的节能效益。结合沐浴水余热使用情况不合理的现状,讨论其发展前景。     

离子交换树脂催化剂研究进展

本文介绍了近年来阳离子交换树脂催化剂的研究、开发及应用情况,着重介绍了阳离子交换树脂用作醚化及酯化反应催化剂方面的研究进展。     

SO_2两转两吸流程中“ⅢⅠ-ⅣⅡ”和“ⅢⅡ-ⅣⅠ”换热情况浅析

通过工艺计算，定量分析比较 Ｓ Ｏ２ 转化中“ⅢⅠ－ ⅣⅡ”和“ⅢⅡ－ ⅣⅠ”两种换热流程的差异，论证了就换热情况而言，“ⅢⅠ－ ⅣⅡ”流程优于“ⅢⅡ－ ⅣⅠ”流程     

管壳式换热器与板式换热器选型参考

阐述管壳式换热器与板式换热器各自的特点,并通过对此两种换热器在闭式循环冷却水系统中水水换热器的性能参数的对比和计算,详细论述了管壳式换热器和板式换热器的结构性能的比较,为换热器的选型提供参考。     

换热器的化学清洗

介绍了酸洗液中各组分的化学性质,着重说明了酸洗过程的建立及控制,并提出了换热器清洗过程中应注意的事项。     

Quantitative Separation of Iron from some Multivitamin-Multimineral Formulations using Zirconium (Iv) Arsenophosphate Columns

Abstract

Iron has been separated quantitatively from various multivitamin-multimineral formulations on zirconium(IV) arsenophosphate columns. The method is simple and selective with a high degree of accuracy and precision.     

Comparison of the thermal performances of two nanofluids at low temperature in a plate heat exchanger

The objective of this study is to compare experimentally the thermal performances of two types of commercial nanofluids. The first is composed of oxides of alumina (γAl₂O₃) dispersed in water and the second one is aqueous suspensions of nanotubes of carbons (CNTs). The viscosity of the nanofluids is measured as a function of the temperature between 2 and 10 °C. An experimental device, containing three thermal buckles controlled in temperature and greatly instrumented permits to study the thermal convective transfers. The evolution of the convective coefficient permits to study the convective thermal transfers. The evolution of the convective coefficient is presented according to the Reynolds number, at low temperature from 0 to 10 °C and for the two aforementioned nanofluids. An assessment of the pressure drops in the circuit as well as of the powers of the circulator and outputs is dealt with.     

基于VB的Solid Edge变量化设计在换热器设计中的应用

在基于Solid Edge软件的基础之上,通过变量化设计建模和编写通用的Visual Basic数据驱动程序,对低温制冷空调设备中常用的各种换热器(管片式、层叠式、平行流式和管带式)进行参数化设计.以管片式换热器为例详细说明软件的三维建模过程,并为今后换热器的优化设计奠定一定的基础.     

糠醛换热器的腐蚀分析与研究

本文通过对炼油厂糠醛换热器装置的腐蚀分析与研究，概述了腐蚀产生的原因及腐蚀机理。提出了糠醛换热器的防腐措施。     

间壁式换热器的工作点及传热速率的调节

本文定义了换热器的工作点，给出了工作点的求法。介绍了利用工作点的概念，进行传热过程调节及辅助计算的方法。应用这一方法，讨论传热过程方便直观；做为辅助手段进行传热过程计算，可简化过程，特别是对操作型计算可减少试差。