粮食通风储藏的数学描述问题

文章从三方面介绍了粮食通风储藏的数学描述问题，即数学描述粮食通风储藏的基础知识，通过粮仓中热和质量传递的连续方程之体积平均形式；通风粮仓中热和质量传递的数学描棕。通过各种方程式具体描述了粮食通风储藏这个技术问题，并从而使这个技术问题系统化，理论化。     

智能机械通风控制系统的实现和应用

系统采用计算机网络控制技术、智能技术,自动控制粮仓通风设备启停和粮仓门窗的开关。依据《储粮机械通风技术规程》和相关智能通风策略对粮仓进行通风,达到降温通风、降水通风和调质通风等目的,有效控制粮仓的储粮环境和粮食品质,从而达到绿色安全储粮的目的。     

基于数值模拟技术的三种通风量下储粮机械通风效果的比较研究

基于多孔介质的传热传质理论,建立了储粮通风过程中粮堆内部热质耦合传递的控制模型,并借助数值模拟的方法,模拟分析了三种通风量下粮仓垂直通风时,粮仓内各粮层的温度、水分变化规律,以及各种通风量下的通风效果,研究结果可以为储粮通风操作提供参考。     

不同仓型和不同机械通风形式降温实效分析

通过对不同储粮仓型进行吸出式、压入式和排风式3种机械通风形式的试验，分析了这3种机械通风形式具有的不同通风特点、经济性和适用性。     

华南地区冬季印度谷螟的危害现状及生物防治

南方粮仓在冬季进行通风降温降水（特别是自然通风）时，往往发现少数几个粮仓的局部粮面有鳞翅目幼虫。经检查这种幼虫一般为印度谷螟幼虫。经过多年的观察总结分析，发现其在冬季华南地区粮仓有如下活动规律：     

玉米就仓干燥实仓试验的探索

在高大平房仓内对6m高粮面的3225t高水分玉米(入仓平均水分15．2％)，利用新型的粮仓绿色处理机组与地上笼组成的通风系统进行整仓降水处理，结果表明：第一阶段从开始入粮使用仓内地上笼和粮仓绿色处理机进行通风处理，抑制了粮食霉茵的发生，给玉米降水赢得了时间。第二阶段使用粮仓绿色处理机和立体软管通风系统组合进行均匀降水，使玉米水分降至安全指标以内(12．6％)，并保持了原有粮食品质。     

从实际出发建设经济实用的机械化粮仓

简要回顾了建国以来黑龙江省粮食建设的历史，重点介绍了９０－３型平房仓和砖筒仓两种经济实用的机械化粮仓的建筑结构、功能、设备配置及通风、粮精检测等性能特点，并对综合造价和运营成本等作了概算。     

不同仓型机械通风降水降温效果分析

通过对不同储粮仓型进行吸出式、压入式和排风扇式3种机械通风形式的试验,分析了3种机械通风形式具有的不同通风特点、经济性和适用性。     

立体网络式通风储粮试验报告

本文总结了京山粮库近几年来采取通风降温、密闭隔热相结合的储粮方式，进行了立体网络式通风储粮试验。该试验投资少、电耗低、操作简单、效果好，是一种值得推广的粮仓通风技术。     

粮仓立体通风技术

本项技术针对尚未得到较好解决通风降温问题的粮仓,通过配置立体通风系统达到机动灵活、经济有效的通风降温、降湿目的.实验表明每吨粮食降温1℃,电耗仅0.04kw·h,仓内各部位粮面风速在0.006～0.011米/秒范围内,达到了粮仓通风作业的先进水平.     

Adaptability Analysis of Passive Building Energy Efficiency Technology in Selected Climatic Regions

Passive building energy efficiency refers to utilizing ecological building design principles with natural climate resources to realize building energy efficiency, which is greener, more conducive to the sustainable development of the human living environment, and will actively advocate building energy efficiency. The adaptability of six passive building energy efficiency technologies including passive solar heating, natural ventilation, thermal storage wall, induced and night ventilation, direct evaporative cooling and indirect evaporative cooling in typical cities in selected climatic regions would be analysed. In addition, the applicability of passive building energy efficiency technologies in selected climatic regions would be compared.     

Natural Ventilation Design in Architecture

The natural ventilation is a technical means adopted widely in energy conservation building. According to the theory of natural ventilation, it can be divided into some forms including the natural ventilation by wind pressure, by different pressure in temperature, by combination of both and mechanically supplementary ventilation. In this paper, the theory of natural ventilation is analyzed with examples, then, the theory of double layer enclosure and the natural ventilation in high-rise building are discussed.     

Energy consumption analysis and reconstruction of subway platform screen doors in northern cities for energy saving

To analyze the influence of the platform screen doors (PSD) on energy consumption of subway environmental control systems in northern cities and to make good use of piston wind, EnergyPlus, an energy analysis and thermal load simulation program, is used to evaluate such systems in northern cities. A computational fluid dynamics (CFD) simulation is made to model the velocity and temperature field of a subway station and to predict the effect on PSD reconstruction using Airpak. Compared to a system with automatic platform gates, a PSD system has 2% lower energy consumption. Thus, PSDs are inefficient for saving energy in northern cities. Because electricity consumption by ventilation equipment increases notably when PSDs are used, particularly by under platform exhaust fans, little difference exists in the overall energy consumption with or without PSD. More thoroughly using piston wind in transition seasons and the winter is the key to solving the high energy consumption problem. The energy analysis and CFD simulation results show that the adjustable vents in PSD can use the piston process to introduce outside air, thereby reducing ventilation energy consumption notably. Because the vents can be closed, PSDs also can save energy in the summer. Using these recommendations can reduced annual energy consumption 30%.     

储粮机械通风系统设计中不容忽视的两个问题

探讨了储粮机械通风系统的优化设计,即风机的合理选择和均匀送风管道的设计,可节约能耗,促进机械通风储粮技术的规范化。     

Energy-saving Planning and Design of Urban Residential Buildings in Hanzhong Area

Energy-saving design of residential building is an important part of energy-saving architectural design. Planning and design of residential buildings in Hanzhong area should pay more attention to the building orientation, sunshine, summer ventilation and wind resistance in winter and so on, so as to create favorable conditions for energy-saving design of single buildings. The geographical location, climatic characteristics, residents living habits and indoor and outdoor thermal environment situation were analyzed in this paper, and combined with the existing problems of energy conservation in the planning and layout of residential buildings in Hanzhong area. Based on the investigation, this paper drew some conclusions to provide references for the energy-saving planning and design of urban residential buildings in the local area.     

谷物冷却机保水冷却通风实验报告

使用谷物冷却机进行保持水分冷却通风，在确保储粮安全的前提下，通过科学地分段设定合理的出风温度和湿度参数，可大幅度降低冷却通风单位能耗，缩短通风时间，提高冷却通风效率。     

Effect of Natural Resource on Improving Indoor Thermal Environment in Chongqing

Analyzes the potentials of natural resource to improve the indoor thermal environment in Chongqing through the statistical analysis of natural resource including solar energy, wind, water and earth etc. The building forms, systems and principle of usage of natural resources are briefly analyzed through the building site-decision, building form design and computer simulation which will be the real reference for the design of building energy efficiency.     

重庆市风能资源监测及计算分析

为了弄清重庆市风能资源的真实状况,分析地形对风能资源的影响,对重庆市6座专业梯度测风塔连续12个月的测风数据进行审查订正,并结合参证站的测风资料对重庆市风能资源进行计算分析。结果表明：（1）利用气象站测风数据不能准确评估重庆风能资源;（2）重庆具有目前技术水平下可开发的风能资源;（3）风速垂直廓线符合幂指数关系。最终,可以肯定在目前技术条件下,重庆市东北及东南部高山地区存在可开发利用的风能资源。     

Analysis of reasonable wind farm energy storage capacity range

The wind farm output power fluctuations caused by changing wind speed can be improved by configuring the appropriate storage energy capacity .For the problem that how to select the storage capacity more economical, two indicators for the judgment of the optimization wind power output are mentioned, which is based on a method calculating storage energy capacity. By detailed analysis of the all kinds of factors that can influence the reasonable value of storage capacity, and by using the cost of storage capacity and the smoothing effect of wind farm output as assistant criterion, a reasonable storage capacity range is discussed.     

西安地区智能通风冬季降温试验研究

利用冬季低温进行机械通风来降低粮堆温度是粮食储藏的重要技术,但选择适当的通风时机和适宜的通风方式,可以降低通风能耗,减少通风水分损失。试验表明:智能通风能够及时准确地把握有利的通风时机,自动控制通风设备的启停,提高通风效率,降低通风能耗和减少粮食水分损失。