焓的變化 的英文怎麼說
中文拼音 [debiànhuà]
焓的變化
英文
change of enthalpy-
The formed ca - h radicals lead to the variations of the dihedral angles and. thus verified our own hypothesis. as for the calculation of small molecule ' s c - h bde, density functional theory ( dft ) b3lyp is employed
量子化學計算表明，多肽鏈的ca - h的解離焓（ bde ）較小，易抽氫，且抽氫前後多肽鏈構象發生了很大的變化，這可以從構象角、的變化看出，從而從理論上驗證了我們的觀點。The change in heat content is called the enthalpy change, △h.
熱焓的變化稱為焓變HThe change in enthalpy may be expressed in terms of the specific heats of the phases and the temperature and pressure changes.
熱焓的變化可以表達為各相比熱和溫度壓力的變化。At the same time, the conductivity factor and the entropy of phase change of the solidation fatty alcohol were measured separately by using the time - temperature curve and dsc
同時利用時間-溫度曲線法和dsc測定了固化十二醇的導熱系數與相變焓。This text aim at the measure and control ' s system at the experiment to equip of the air condition function and combination shanghai chijiang technology develop company new set up the enthalpy different laboratory, makes use of the visual basic 6. 0 developped the measureand control ' s system of the enthalpy different laboratory. this system adopts n ow programmable control technique that spread of boundary of domestic and international work control, the regulating speed technique by changing frequency and the rs - 485 / rs - 232 technique
本文就針對空調性能實驗裝置中的測控系統並結合上海弛疆科技發展公司的焓差室新建工程，利用visualbasic6 . 0開發了焓差室的計算機測控系統，該系統採用了目前國內外工控界流行的可編程式控制制技術、變頻調速技術和rs - 485 rs - 232通信網路技術，是一套完善的管控一體化系統。The thermochromism implies a drastic change in color of substance, which take place when it is heated up to a certain temperature or to a more or less well - defined temperature range. accompanying the change of color, materials that undergo temperature - induced color changes are termed thermochromic
熱致變色材料是指顏色或吸收光譜隨溫度變化的一些化合物或混合物，熱色性材料的顏色變化伴隨著焓變，焓變越大，相應的顏色變化也越明顯。The theoretical analysis and the simulation of the chain structure model indicate that the fluctuations of mass leaving enthalpy close in on that of distributed parameter model with two - order, two - order, and three order precision at the disturbances of heat flow rate, mass entering flow rate, and mass entering enthalpy
理論分析及模擬結果表明，該模型在熱流量、入口流量和入口焓的擾動條件下，出口焓的變化分別以二階、二階、三階精度逼近分佈參數模型。Examinations of steady status and analysis of dynamic experiments have been conducted on band - tube evaporator and parallel - flow condenser using r134a refrigerant. the steady examination show that the model error was under the allowable error, the inlet mass and enthalpy disturb experiments indicate that the subsection model, be good at reflecting the change of parameters of the heat exchanger, accord with the basic principle of thermodynamics theory and the actual work status. hence, the subsection simulation model research has important benefits both on theory and engineering application
在進行模擬試驗時，以使用r134a作製冷劑的管帶式蒸發器和平行流式冷凝器為對象，完成了穩態模擬計算、試驗和動態模擬分析，穩態計算結果和試驗數據對比表明，其誤差在允許范圍內；進口質量和焓值的擾動試驗結果表明：本文所建的區段式換熱器模擬模型，能很好的反映換熱器性能參數的動態變化，與系統熱動力學理論和冷凝器、蒸發器的實際工作過程基本一致。Because of the small conductivity factor of organic phase change materials, all kinds of copper grids, gas sio2 and organic bentonite were added to organic phase change materials in order to heighten its conductivity factor. the conductivity factors were maesured by using time - temperature curve and comparison curve, and, the conductivity factor curves were drawn. at the same time, the entropy of phase change of every system was determined by using dsc
針對有機相變貯能材料導熱系數小的缺點，採取在其中添加各種形狀的銅網格、氣相sio _ 2和有機膨潤土的方法來改善體系的導熱性能，利用時間-溫度曲線法和比較法兩種方法測定體系的導熱系數，並且繪制了體系導熱系數的變化曲線；同時利用dsc對上面部分體系的相變焓進行了測定。分享友人