饮食业油烟净化有关问题的讨论

对油烟净化技术应注意的问题、油烟净化的任务、油烟净化设备和市场现状等问题，进行了讨论并提出相关建议。     

干—湿法冷却技术在蒸汽轮机上的应用

介绍了干-湿式冷却系统的工作原理及构成,对该系统的运行特性及节水情况进行了分析,指出了干-湿式冷却技术的应用优势,为水电厂的节水节能提供了一条可行的途径。     

风光互补控制器的智能化设计

介绍了基于ATtiny15L的智能化小型风光互补发电系统控制器的硬件结构、工作原理及其软件设计方法，并运用仿真和实验手段进一步证明该系统的安全性和可靠性。该技术已成功地应用到600VA风光互补发电系统的设计开发中，实践表明该控制器技术升级与降低成本并举，并即将投入生产。     

油烟净化机的应用特点及其发展要求

介绍了油烟净水机的工作原理,性能特点,对几种油烟净化机作了具体分析。     

发展燃气空调的优越性及可行性

主要从环境保护、能源利用、气网削峰填谷,削减电力峰值等方面介绍了燃气空调的优越性及其特点。并从当前国内燃气开发利用情况、政府政策及国产燃气空调主要设备技术性能方面阐述了发展和应用燃气空调的可行性。     

小型火力发电厂玻璃钢湿烟囱设计实例

通过对玻璃钢烟囱的结构形式、支撑方式、玻璃钢排烟筒材质以及烟气流速取值等方面分析,总结了浙江省莱热电厂4台130t/h燃煤锅炉湿法脱硫改造后新建的一座玻璃钢湿烟囱的设计要点,为类似小型火力发电厂今后玻璃钢湿烟囱设计提供参考.     

生物质致密成型设备生产颗粒燃料技术及经济分析

介绍了生物质颗粒燃料的加工原理和生产设备，给出了成型的关键部件——环模的具体形状和尺寸。通过对一个年产5000t玉米秸秆颗粒燃料的生产线进行的经济性分析表明，生物质颗粒燃料生产是生物质能利用的一条有效途径。     

干湿两用冷却塔的结构设计及性能分析

分析干湿两用冷却塔的工作原理,结合热交换公式和所选用的翅片管换热器,在具体设计算例的要求下对干式工况和湿式工况的冷却能力进行比较,经过试算找到干湿工况运行的界限温度,通过分析得到一些有价值的结论,为干湿两用冷却塔的研制及优化运行提供了参考依据。     

双向皮带输渣机改三通落渣管的应用分析

详细介绍双向皮带输渣机在使用过程中存在的主要问题,改造三通落渣管的实施情况、经济分析、实际意义,对火电厂实施小技改项目,改善设备性能具有一定的参考价值。     

蒸汽湿度测量仪的热平衡式校验方法与装置

报道了一种基于热平衡的适用于多种流动湿蒸汽湿度测量仪的检验方法与装置，简述了该校验方法的原理，校验装置的基本设计参数，检验系统组成和主要功能，以及对一双区加热式湿度测量仪的检验过程，结果表明该检验方法和装置是可信的。     

Transient thermal investigation of a fully wet porous convective–radiative rough cylindrical pin fin

The microelectromechanical systems technologies frequently produce rough surfaces, and the repercussion of roughness on the thermal performance is more prominent in structures of smaller dimensions. In this regard, the present article intends to examine the unsteady thermal behavior of a fully wet, porous, and rough micropin-fin structure under convective–radiative conditions. Here, a pin fin of a cylindrical profile has been chosen. The problem is modeled by incorporating the roughness parameters in the perimeter and cross-sectional area of the pin fin. Further, the study of the porous structure has been carried out by implementing the Darcy model. The resulting partial differential equation is nonlinear and of the second order which has been solved by employing the finite difference method. The impact of the roughness parameter, wet porous parameter, dimensionless time, convective parameter, base radius-to-length ratio, radiative parameter, thermal conductivity parameter, power index, and ambient temperature on the thermal performance and efficiency of rough micropin-fin structures has been established graphically. According to the findings, for $0.15\%$ rise in roughness, the rough micropin fin has $12\%$ more thermal drop rate and $13\%$ less efficiency than the smooth one. Further, the work is beneficial in the field of microelectronics, especially in the design of micropin-fin structures.     

Numerical simulation of the effective thermal conductivity of wet clothing materials

Clothing materials may be considered composite materials composed of fiber, air, and moisture. For this paper, effective thermal conductivities of wet clothing materials were analyzed numerically using a proposed heat transfer model. The following simplifications were introduced. The clothing material fiber is woven with a single yarn, there is no air movement between fibers, and mass transfer is neglected. Numerical calculations were made using finite difference equations for steady three-dimensional heat conduction for several composite materials representing wet clothing materials. The main results obtained were as follows. The effective thermal conductivity of wet clothing material increases as the thermal conductivity of the yarn and the moisture content increase. We found that our numerical results agree qualitatively with those previously measured. The effective thermal conductivity of a wet layered material depends on the distribution of moisture and attains a maximum in the wet layer. © 1998 Scripta Technica, Heat Trans Jpn Res, 27(3): 243–254, 1998