辦公室新型、傳統(tǒng)空調(diào)流場模擬及舒適度分析
發(fā)布時間:2019-04-19 18:29
【摘要】:研究表明,空調(diào)耗能占建筑總能耗的55%,約占全社會總能源消耗的15%?諝庹{(diào)節(jié)為的是達到人體舒適要求,但傳統(tǒng)空調(diào)不但耗能大,不需要空氣調(diào)節(jié)的地方也浪費了能源調(diào)節(jié),而且不能滿足所有人的舒適度要求,部分人甚至根本享受不到空調(diào)的效應(yīng)。 本文提出的新型送風(fēng)方式是在各個辦公點設(shè)置一個送風(fēng)末端,由于出口的送風(fēng)只滿足辦公點個人的舒適度需求,而對周圍不需要空氣調(diào)節(jié)的地方影響較小,所以相對于傳統(tǒng)空調(diào)更節(jié)能;每個送風(fēng)末端均可以自行調(diào)節(jié)送風(fēng)參數(shù),以滿足個人的最佳舒適狀態(tài);送風(fēng)末端自動檢測所在辦公點辦公人員是否離開,以此自行開閉送風(fēng)端,達到節(jié)能效果。 本文以節(jié)能、舒適為目的,,對辦公室室內(nèi)的傳熱模型以及傳熱特點進行了研究,并采用Airpak對新型送風(fēng)方式以及傳統(tǒng)方式進行了模擬,從熱力學(xué)以及人體舒適度的角度對兩種方式送風(fēng)進行了分析和對比,并尋求了新型送風(fēng)方式下的最佳送風(fēng)參數(shù)。文中以溫度分布及速度分布作為能量分析,以PMV值和PPD值作為舒適度分析。模擬的結(jié)果顯示: 1.傳統(tǒng)送風(fēng)的氣流比較集中,而新型送風(fēng)方式的氣流則較為分散,傳統(tǒng)送風(fēng)方式氣流變化比較和緩、均勻,而新型送風(fēng)方式則變化較大,不均勻。 2.較于傳統(tǒng)空調(diào),新型送風(fēng)空調(diào)不僅更節(jié)能,而且還更能滿足所有人員的舒適度要求; 3.新型送風(fēng)參數(shù)下,人體能夠達到最佳舒適狀態(tài)的最優(yōu)送風(fēng)參數(shù)為16℃、1.8m/s,但該參數(shù)并不適用于傳統(tǒng)方式。 4.個人風(fēng)口對個人外的周圍環(huán)境有影響,但不大,隔板等阻流部件對氣流的影響較為明顯,為了節(jié)能可以適當(dāng)加長、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
本文編號: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
本文編號:2461169
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