pcms 中文意思是什麼

pcms 解釋
直腸肌綜合征
  1. The s - l - e experiment data for the eight binary condensed systems of fatty alcohol / fatty acid were treated by using the improved equation, and the equation was examined with experimental data. at the same time, we used ideal model to predict the tenary s - l - e of n - octadecane / lauric acid / stearic acid system, and we got an accurate result of the simple eutectic temperature. the relative error is 0. 51 % comparing with the experimental result, so we will offer a method of prediction for quickly obtaining multicomponent system phase change materials this article calculated the pcms quantities and energy saving effect in theory, designed the experimental apparatus to measure the energy saving effect, and analyzed the temperature equalization action of the pcms by comparing experiment

    利用這種方法,建立了適合醇-羧酸等系列二元體系的單參數margules方程,本文對醇-羧酸系列等8個二元凝聚體系的單參數margules方程的參數進行回歸,並利用整個實驗數據對模型進行了檢驗,另外,本文利用理想狀態模型對一個三元體系18烷-月桂酸-硬酯酸相圖進行預測,通過與實驗數據進行比較,預測的低共熔溫度與實驗測定溫度較為吻合,其相對誤差為0 . 51 ,這將為快速獲取多元體系的相變材料提供預測方法。
  2. Their properties have been investigated by using scanning electronic microscopy ( sem ), differential scanning calorimetry ( dsc ), x - ray diffraction ( xrd ), thermogravimetry - differential thermal analysis ( tg - dta ), infrared spectroscopic analysis ( ir ), and gas chromatography ( gc ), etc. the effects of the mulser ' s stirring rate and the emulsifier concentration on the properties of encapsulated pcms have been systematically studied, and nanopcms have been obtained by increasing the stirring rate or the emulsifier concentration. the influences of different nucleating agents on micropcm performances have also been investigated in detail to search for a suitable nucleating agent to prevent micropcms from super - cooling

    首先,系統研究了乳化機轉速和乳化劑濃度對膠囊性能的影響,並通過提高轉速或乳化劑濃度獲得相變材料納膠囊;其次,系統研究了不同成核劑對微膠囊性能的影響,找到合適的成核劑抑制了相變材料微膠囊的過冷現象;再次,詳細研究了環己烷對膠囊性能的影響,並通過添加適量環己烷提高了相變材料微膠囊及納膠囊的耐熱溫度。
  3. It is shown that paraffin can be uniformly absorbed into the pore network of expanded graphite, that expanded graphite remains its vermiform structure in pcms, that the phase - change temperatures of composite pcms are similar to that of paraffin, and that the latent heat of composite pcms is are based on the mass fraction of paraffin in the composite materials

    結果表明:膨脹石墨吸附石蠟后仍然保持了原來疏鬆多孔的蠕蟲狀形態,石蠟被膨脹石墨微孔所吸附;復合相變儲熱材料的相變溫度與石蠟相似,其相變潛熱與基於復合材料中石蠟含量的潛熱計算值相當。
  4. This work aimed at the problems of phase change materials ( pcms ) exudation and low content of pcms, prepared temperature self - operating units ( tsous ) by the packaging method of organic / inorganic nano composite materials. optimization of experimental parameters was carried out and the evaluation method of properties was studied to acquire tsous with the maximum pcm content and high stablity

    本文針對國內外現有自調溫材料容易滲出相變工質材料、相變工質材料含量低等問題,採用有機無機納米復合法包覆相變工質材料制備自調溫單元,研究優化制備工藝及性能評價方法。
  5. Composite paraffin / expanded graphite phase - change materials ( pcms ) respectively containing 50 % ( mass fraction, below the same ), 60 %, 70 % and 80 % of paraffin were prepared by using paraffin as a latent heat - storage material and expanded graphite as a supporting matrix

    摘要以有機物石蠟為相變材料、膨脹石墨為支撐結構,利用膨脹石墨的多孔吸附特性,制備出了石蠟含量分別為50 % (質量分數,下同) , 60 % , 70 %和80 %的石蠟膨脹石墨復合相變儲熱材料。
  6. The structure and thermal properties of pcms were then characterized by means of sem and dsc

    採用掃描電鏡( sem )和差示掃描量熱分析( dsc )對復合相變儲熱材料的結構和熱性能進行了表徵。
  7. According to the microstructure, the tsous are consist of two sections : the adsorbent of micropore inorganic materials and pcms. tsous with the maximum pcm content and high stability may be prepared by making good use of the nano effect and surface effect of organic / inorganic nano composite materials. according to the microstructure, the saturated adsorption amount of micropore inorganic material is 73. 47 %

    應用該模型制備自調溫單元,可利用材料的納米尺寸效應和表面效應,在納米孔道的內壁上形成吸附力的疊加,使微孔內部具有強的吸附勢,可得到相變工質材料含量最大且性能穩定的自調溫單元;該模型中微孔無機材料對相變工質材料的理論飽和吸附量為73 . 47 。
  8. Directed by the adsorption theories, sepiolite was selected as micropore inorganic material and dodecanol was selected as pcm, and carried out the optimization of experimental parameters, such as selection of sepiolite minerals, sepiolite modification, absorption temperature, pcms solution concentration, stirring time, drying mode, dehydration of sepiolite. by the optimization, the best conditions on tsous preparation were achieved. measurement method of pcms exudation was established to estimate the exudation of pcm in tsous, the temperature self - operating effects and energy saving effects of tsous was also examined

    在以上微孔吸附理論研究基礎上,選用海泡石作為微孔無機材料、十二醇作為相變工質材料,對自調溫單元的制備工藝參數進行了優化研究,包括:海泡石原料的選擇、海泡石改性的影響、吸附溫度的選擇、 pcm有機溶液初始濃度的選擇、攪拌時間的確定、烘乾方式的選擇、海泡石含水量的確定,最終得到自調溫單元的最佳制備工藝。
  9. According to the experimental result, by introducing pcms to the building, the temperature fluctuation was buffered and the time of indoor comfort temperature was prolonged, at the same time, the energy storage course of pcms has reversibility and continuity

    實驗結果說明,相變材料的加入可減緩溫度波動、延長室內舒適溫度時間,同時說明,相變材料的貯能過程具有可逆性和連續性。
  10. 3. for encapsulated pcms with less than 10 m in their average diameter, their temperature and heat of phase transition seldom change as their average diameter decreasing ; however, their crystallization peaks vary dramatically and the super - cooling becomes worse

    3 、對于平均粒徑小於10 m的相變材料膠囊,膠囊的相變溫度以及相變熱基本不隨粒徑變化,而結晶峰變化較大,其過冷現象隨著粒徑的減小而加劇。
  11. When the pcm is designated, under the certain operating situations, the most prominent question is that the thermal conductivity of most pcms, especially organic pcms, is too poor

    但是,當相變材料、運行工況一定的情況下,最為突出的一個問題是大多數相變材料(特別是目前用的較多的有機相變材料)的導熱系數都很低。
  12. The pcms exudation in tsous is less than lwt % that meets the requirement of stability. the tsous is stable enough to satisfy the demand of application in building materials, and it has broad foreground of application

    制備的自調溫單元中工質材料最高含量可達67 . 96 ,與理論值基本相符;其工質材料滲出比例1wt ,滲出穩定性達到要求。
  13. This article studied solid - liquid - equilibrium ( s - l - e ) of organic compound system, measured solid - liquid phase diagram, latent heat of phase change and energy conservation effect in order to supply a sort of simple, feasible means to choose solid - liquid pcms

    本文對有機固液相平衡進行了探討和分析,並且對固液平衡相圖、相變潛熱和節能效果進行測定,目的在於為固液相變材料的篩選提供一種簡單、可行的研究方法。
  14. Latent heat thermal energy storage ( lhtes ), can storage energy by change the phases of phase change materials ( pcms ), which can be used to solve the nonconformity problem on supply and demand time of solar energy and industry waste heat. at the same time, it can be uesed in shifting the peak heating and cooling loads off - peak hours

    相變儲熱系統通過相變材料相變時需要吸收(或放出)大量熱量的性質實現能量存儲,這對于解決太陽能與工業廢熱在供求時間上的不一致問題,以及實現電力的「移峰填谷」 ,具有重要的實用價值。
  15. And through the comprehensive comparisions, along with the dsc analysis of different pcms, it was determined to select the stearic acid ( c18h36o2 ) as the pcm in this paper, provided by beijing chemical reagent company. the stearic acid has an ideal melting point and attractive thermal capacity. all these properties make it an attractive candidate as a potential pcm for heat storage in mid - temperature lhtes systems

    並在對多種相變材料做全面比較以及dsc分析的基礎上,確定選用北京化學試劑公司提供的硬脂酸( c18h36o2 )作為本文的相變材料( pcm ) ,其熔點(相變溫度)適中,相變潛熱較大,這些特性使其成為一種中常溫相變儲熱裝置中理想的相變儲熱介質。
  16. In the course of phase transformation because phase change materials ( pcms ) have got a great deal of energy storage and release, save energy, and approve actual effect of utilization, pcms will be widely applied in the saving energy fields including the building, solar energy, exhaust heat, exhaust cool and so on

    由於相變貯能材料在其物相變化過程中有大量能量的吸收和釋放,可對能量進行貯存,並增加能量利用的實效性,因此在建築、太陽能、廢熱、廢冷等節能領域中有著廣闊的前景。
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