办公室新型、传统空调流场模拟及舒适度分析
发布时间：2019-04-19 18:29
【摘要】：研究表明，空调耗能占建筑总能耗的55%，约占全社会总能源消耗的15%。空气调节为的是达到人体舒适要求，但传统空调不但耗能大，不需要空气调节的地方也浪费了能源调节，而且不能满足所有人的舒适度要求，部分人甚至根本享受不到空调的效应。 本文提出的新型送风方式是在各个办公点设置一个送风末端，由于出口的送风只满足办公点个人的舒适度需求，而对周围不需要空气调节的地方影响较小，所以相对于传统空调更节能；每个送风末端均可以自行调节送风参数，以满足个人的最佳舒适状态；送风末端自动检测所在办公点办公人员是否离开，以此自行开闭送风端，达到节能效果。 本文以节能、舒适为目的，，对办公室室内的传热模型以及传热特点进行了研究，并采用Airpak对新型送风方式以及传统方式进行了模拟，从热力学以及人体舒适度的角度对两种方式送风进行了分析和对比，并寻求了新型送风方式下的最佳送风参数。文中以温度分布及速度分布作为能量分析，以PMV值和PPD值作为舒适度分析。模拟的结果显示： 1.传统送风的气流比较集中，而新型送风方式的气流则较为分散，传统送风方式气流变化比较和缓、均匀，而新型送风方式则变化较大，不均匀。 2.较于传统空调，新型送风空调不仅更节能，而且还更能满足所有人员的舒适度要求； 3.新型送风参数下，人体能够达到最佳舒适状态的最优送风参数为16℃、1.8m/s，但该参数并不适用于传统方式。 4.个人风口对个人外的周围环境有影响，但不大，隔板等阻流部件对气流的影响较为明显，为了节能可以适当加长、增加隔板等阻流部件。
[Abstract]:The research shows that air-conditioning energy consumption accounts for 55% of the total energy consumption of buildings and about 15% of the total energy consumption of the whole society. Air conditioning is designed to meet the comfort requirements of the human body, but traditional air conditioning not only consumes energy, but also wastes energy regulation where air conditioning is not needed, and cannot meet the comfort requirements of all people. Some people do not even enjoy the effect of air conditioning. The new air supply method proposed in this paper is to set an air supply terminal at each office site. Because the outlet air supply only meets the personal comfort needs of the office site, and has little impact on the places around which there is no need for air conditioning. Therefore, compared with the traditional air conditioning, it is more energy-saving; Each air supply terminal can adjust the air supply parameters to meet the best comfort of the individual, and the air supply terminal automatically detects whether the office staff is leaving or not, so as to open and close the air supply terminal and achieve the energy saving effect by self-opening and closing the air supply terminal. In order to save energy and comfort, this paper studies the heat transfer model and heat transfer characteristics of the office room, and simulates the new air supply mode and the traditional air supply mode with Airpak. From the viewpoint of thermodynamics and human comfort, this paper analyzes and compares the two modes of air supply, and finds out the best air supply parameters under the new air supply mode. In this paper, temperature distribution and velocity distribution are used as energy analysis, PMV and PPD values as comfort analysis. The results of the simulation show that: 1. The air flow of the traditional air supply mode is more concentrated, while the air flow of the new air supply mode is more dispersed. The change of the air flow of the traditional air supply mode is relatively slow and uniform, while the change of the new air supply mode is large and uneven. 2. Compared with the traditional air conditioning, the new air supply air conditioning is not only more energy-saving, but also more satisfied with the comfort requirements of all personnel; 3. Under the new air supply parameters, the optimum air supply parameters for the human body to reach the optimal comfort state are 16 鈩
本文编号：2461169
[Abstract]:The research shows that air-conditioning energy consumption accounts for 55% of the total energy consumption of buildings and about 15% of the total energy consumption of the whole society. Air conditioning is designed to meet the comfort requirements of the human body, but traditional air conditioning not only consumes energy, but also wastes energy regulation where air conditioning is not needed, and cannot meet the comfort requirements of all people. Some people do not even enjoy the effect of air conditioning. The new air supply method proposed in this paper is to set an air supply terminal at each office site. Because the outlet air supply only meets the personal comfort needs of the office site, and has little impact on the places around which there is no need for air conditioning. Therefore, compared with the traditional air conditioning, it is more energy-saving; Each air supply terminal can adjust the air supply parameters to meet the best comfort of the individual, and the air supply terminal automatically detects whether the office staff is leaving or not, so as to open and close the air supply terminal and achieve the energy saving effect by self-opening and closing the air supply terminal. In order to save energy and comfort, this paper studies the heat transfer model and heat transfer characteristics of the office room, and simulates the new air supply mode and the traditional air supply mode with Airpak. From the viewpoint of thermodynamics and human comfort, this paper analyzes and compares the two modes of air supply, and finds out the best air supply parameters under the new air supply mode. In this paper, temperature distribution and velocity distribution are used as energy analysis, PMV and PPD values as comfort analysis. The results of the simulation show that: 1. The air flow of the traditional air supply mode is more concentrated, while the air flow of the new air supply mode is more dispersed. The change of the air flow of the traditional air supply mode is relatively slow and uniform, while the change of the new air supply mode is large and uneven. 2. Compared with the traditional air conditioning, the new air supply air conditioning is not only more energy-saving, but also more satisfied with the comfort requirements of all personnel; 3. Under the new air supply parameters, the optimum air supply parameters for the human body to reach the optimal comfort state are 16 鈩
本文编号：2461169
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