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vav box
相关语句
  变风量箱
     Builds a suit of HVAC DAQ and control system which could take precise data acquisition and control water valve,air valve,VAV box,electrical heater,humidifier and other control elements.
     暖通空调(HVAC)系统中建立一套对各种水阀、风阀、变风量箱、电加热器、加湿器以及其他控制元件进行准确测量及时控制的数据采集控制系统。
短句来源
  “vav box”译为未确定词的双语例句
     Identification of VAV Box System
     变风量空调末端系统的辨识
短句来源
     Feed-forward Decoupling and Control Basing Adaptive Linear Neural for the Vav Box Side of Variable Air Volume Air-Conditioning System
     变风量空调系统末端部分基于自适应线性神经元的前馈解耦控制
短句来源
     This paper mainly includes four parts. Firstly, from the viewpoint of the elementary problems such as the VAV system's principal, classification, domestic actuality, existent matters and the relevant solving ways, the VAV BOX, which is the kernel part of the VAV system, is studied with emphasis in the ways of operating principal, control modes and so on.
     本论文的工作主要分为四部分:首先,从VAV系统的原理、分类和在国内应用的现状、存在的问题以及相应的解决措施等基本问题出发,着重研究VAV系统的核心部分—VAV末端装置的工作原理、控制形式等内容;
短句来源
     Afterwards, based on the mathematic models and emulational modes, the VAV BOX's control characteristic is analyzed and studied. The effect of the room temperature sensor's time constant on air-conditioning is indicated, and the improving method of the sensor's encapsulation style is pointed out too.
     然后,基于所建立的数学模型和仿真模型,分析研究了VAV末端装置的控制特性,指出了末端温度传感器测量温度的时间常数对空调效果的影响以及对其封装形式的改进措施;
短句来源
     Firstly, from the viewpoint of the elementary problems such as the VAV system's principal, classification, domestic actuality, existent matters and the relevant solving ways, the VAV BOX, which is the kernel part of the VAV system, is studied with emphasis in the ways pf operating principal, control modes and so on.
     首先,从VAV系统的原理、分类和国内应用的现状、存在的问题以及相应的解决措施等基本问题出发,着重研究VAV系统的核心部分——VAV末端装置的工作原理、控制形式等内容;
短句来源
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  相似匹配句对
     Identification of VAV Box System
     变风量空调末端系统的辨识
短句来源
     Pandora's Box
     潘多拉的盒子
短句来源
     The Human's Box
     人类的盒子
短句来源
     The Applicayion of Fan Powered Box in VAV Air Conditioning System
     风机动力型末端在变风量空调系统中的应用
短句来源
     CONTROL FOR VAV SYSTEM
     变风量空调系统控制
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  vav box
In a conventional system each thermal zone requires a dedicated VAV box.
      
In the case of the Overhead VAV system, each isolated zone would require a VAV box, which is a fairly expensive solution.
      
At part load conditions, supply air flows may be less than the required outdoor air flows unless VAV box minimum flow settings are sufficiently high.
      
AHU and VAV box data were collected from several field sites.
      
Air from the AHUs is supplied to VAV box units, each having electric or hot-water reheat.
      


Based on the study of multi-zone VAV air conditioning systems and their control, and the requirements of outdoor air by an ASHRAE standard, evaluates four options of outdoor air control strategies for mixing air supply systems, analyses the performance of outdoor air distribution of multi-zone and energy consumption of each option. The results of the simulation show that the strategy using reheating control of VAV boxes with optimal control of the AHU supply air temperature is the best in distributing...

Based on the study of multi-zone VAV air conditioning systems and their control, and the requirements of outdoor air by an ASHRAE standard, evaluates four options of outdoor air control strategies for mixing air supply systems, analyses the performance of outdoor air distribution of multi-zone and energy consumption of each option. The results of the simulation show that the strategy using reheating control of VAV boxes with optimal control of the AHU supply air temperature is the best in distributing outdoor air to all zones in a building and reaching better energy efficiencies.

在多区域变风量空调及其控制系统的分析研究基础上 ,根据ASHRAE通风标准对新风量的要求 ,针对混合送风系统仿真分析了 4种新风及其分配的控制方案 ,综合考察了各方案的新风分配以及系统能耗。结果表明 ,通过VAV末端再热控制并结合AHU送风温度优化的控制方案 ,可以较好地解决多区域VAV空调系统新风分配问题 ,同时能有效地降低系统的能耗。

The variable air volume (VAV) systems that use variable speed fans and the more recently developed control methods like the duct static pressure reset (DSPR) control are widely used in Hong Kong. The performance of the DSPR control and constant duct static pressure control method in an existing office building in Hong Kong was tested. The successful application of the control method requires proper matching between zone cooling loads and flow capacities of the supply fan and the VAV boxes, and adequate...

The variable air volume (VAV) systems that use variable speed fans and the more recently developed control methods like the duct static pressure reset (DSPR) control are widely used in Hong Kong. The performance of the DSPR control and constant duct static pressure control method in an existing office building in Hong Kong was tested. The successful application of the control method requires proper matching between zone cooling loads and flow capacities of the supply fan and the VAV boxes, and adequate ductwork design.

变风量系统 (VAV)风机能耗可随负荷的变化而变化 ,较常规定风量系统 (CAV)明显节约能耗 ,因此近几年来变风量空调系统在香港得到了广泛的应用。对香港地区某办公大楼变风量系统 ,就采用定静压控制和变静压控制分别进行了实验测试 ,针对运行中出现的问题进行了探讨 ,比较了变静压控制节能效果。为保证变静压控制VAV系统运行良好 ,要求风机容量与负荷恰当匹配 ,同时要求风管的布置和形式设计合理。

This paper supplied the theoretical basis for the design of a VAV air-conditioning control system and its control strategy through that analyzing control characteristic of VAV boxes.First,the importance of to optimize damper authority has been pointed out by the analyzing the influence of the working flow characteristic of VAV damper for the VAV control and the energy conservation.Second,the necessity of variable supply-air temperature controls has been pointed out by the analyzing the...

This paper supplied the theoretical basis for the design of a VAV air-conditioning control system and its control strategy through that analyzing control characteristic of VAV boxes.First,the importance of to optimize damper authority has been pointed out by the analyzing the influence of the working flow characteristic of VAV damper for the VAV control and the energy conservation.Second,the necessity of variable supply-air temperature controls has been pointed out by the analyzing the influence of variable supply-air temperature control for VAV control ability.Third,the importance of different-distance vs.same-resistance design method has been pointed out through the analyzing the influence of the ducting length for the working flow characteristic of VAV damper.At last,the merits and drawbacks of fan-powered VAV boxes has been discussed through analyzing the characteristics of them.This paper also introduced the application of digital control technology for to improve the working flow characteristic of VAV damper.

通过解析变风量空调末端设备的控制特性,为变风量空调系统的自控设计和决定其控制策略提供了理论依据。本文首先通过分析VAV风阀的工作流量特性对控制和节能的影响,指出了优化风阀阀权度的重要性。通过分析送风温度控制对控制能力的影响,指出了变送风温度控制的必要性。通过分析异程风道对VAV风阀的工作流量特性的影响,指出了异程同阻设计的重要性。通过分析风机动力形变风量末端装置的特性,指出了其优缺点。同时,还介绍了数值控制技术在改善VAV风阀的工作流量特性上的应用。

 
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