放热

基于BP神经网络的小缸径直喷式柴油机放热规律的研究

Research on Heat Release Law of Small Direct Injection Diesel Engine Based on BP Neural Network

喷油提前角延迟，则NOx生成物降低，放热率也有所降低。

Injection delay results in reduction of NOx and rate of heat release .

四冲程汽油机CAI燃烧放热率模型研究

Study on CAI Combustion Heat Release Model in 4 - Stroke Gasoline Engine

给出了气敏元件反应放热率Prea的公式，并由此给出在闭室测试中气体浓度C随时间变化的微分方程。

From the formula of reaction exothermic rate , the differential equation of C ( t ) in the closed chamber test is given .

从差热分析曲线可看到，随着B，Bi的掺入，在478℃附近出现了不同的放热峰。

A new exothermal peak is found on DTA cure at nearly 478 ℃ when bismuth and boron are added .

DSC分析发现紫胶硬树脂改性酚醛树脂的放热反应温度更低一些。

The DSC analysis discovers that the modification of PF resin with hard resin cure faster than general PF .

确定了反应的机理，氢氧自由基与乙醛作用主要有六条通道，生成与实验相吻合的CH3CO自由基，反应是放热的。

The mechanism of the reaction studied was confirmed and it showed the main six reaction channels .

根据燃烧难易程度可将吸附炭分为低温型和高温型两种，前者燃烧放热集中在350°C左右，后者在480°C左右。

According to burning difficulty degree , it was divided into two types including high temperature type burning mainly at 480 ° C and low temperature type burning mainly at 350 ° C.

这种细粒土级分的DTa曲线接近340℃处有一个很大的放热峰。

The DTA curve of the fine clay fraction exhibits a major exotherm near 340 ℃ .

结果表明化合反应是一种放热反应，放热量受Al含量、加热速度、粉末颗粒尺寸、压制密度等因素的影响。

The results showed that the heat of synthesis reaction is affected by Al content , heat rate , powder size , compacts density and so on .

催化剂具有扭曲的椅式构型，与硼烷在N原子处配位形成加合物，反应是放热的。

The catalyst is a twisted chair structure and reacts with borane at the N site of the catalyst to form catalyst borane adduct . The formation reaction is exothermic .

热压榨方式有利于保持草莓的Vc含量；利用LPG发动机实测示功图，计算出在柴油机中燃烧液化石油气的燃烧放热规律。

Making use of the indicator diagrams , this paper computes the heat release rate of burning LPG in a diesel engine .

通过大量试验数据分析，提出了适用于四冲程汽油机可控自燃（ControlledAutoIgnition，CAI）燃烧的放热率模型。

In this paper , a model for predicting heat release of the Controlled Auto Ignition ( CAI ) combustion was proposed based on in-cylinder pressure data .

Ni在Ti-C-Ni体系中参与了放热反应。

Ni participates in the exothermic reaction of Ti-C-Ni system .

本文利用奇异理论和突变理论，分析了单颗粒催化剂上n级不可逆放热反应体系多定态解的结构。

By using the singularity theory and catastrophe theory , the multiple steady state structure of n or - der irreversible reaction which takes place on a single catalytic pellet was analysed .

采用示差扫描量热法（DSC）对螺环原碳酸酯膨胀单体（SOC）/双酚A型环氧树脂（EP）体系的固化行为、放热峰进行了分析；

Curing behaviors and exothermic peaks of spiro orthocarbonate / epoxy resin system were discussed by DSC ( differential scanning calorimetry ) .

CSTR中三变量连续放热化学反应模型的非线性分析

The Non-linear Analysis of the Chemical Reaction Models of Three-variable Consecutive Exothermal Reactions in CSTR

并结合分段韦伯函数，对不同EGR率的HCCI放热率进行模拟研究。

The HCCI heat release curves in different EGR ratio are simulated with Partition Webie Function .

虽然PBT、PET在共混体系中各自形成晶区，但熔体降温结晶过程中只能观察到一个结晶放热峰。

Although PBT 、 PET crystallized separately in their own cells , only one exothermal peak could be found in the crystallization of the blends .

卵石层储热周期为10h、放热周期为24h。

Heat storage period of the gravel layer was 10 hours and its radia-tion period was 24 hours .

结果：总有效率和2年生存率放热化疗组为71%和54%，放热疗组为74%和61%，单放组为52%和41%，χ2检验P＞0.05。

Results : The effective rate and survival rate of 2 years in radio-thermo-chemotherapy group were respectively 71 % and 54 % , the radio-thermotherapy group 74 % and 61 % , the radio-therapy group 52 % and 41 % .

直接从传热系数K的测定值中将气侧放热系数αc分离出来，从而避免了测量平直波纹翅片平均壁温的困难。

Air side heat transfer coefficient is directly separated from experimental data of overall heat transfer coefficient K , therefore , the difficulty of measuring the mean wall surface temperature of flat wavy fins has been avoided .

利用Si、C、Ti体系的放热反应得到SiC/TiC复相陶瓷，其中Ti+C含量要大于25%，否则燃烧反应无法完全进行。

SiC / TiC composite was gained by combustion reaction of Si , C and Ti system where the content of Ti + C should be larger than 25 % to achieve complete combustion reaction .

试验结果表明，铝熔体与SiO2颗粒能发生放热反应，从而制备出Al／Al2O3颗粒原位复合材料。

Experiments show that , an exothermic reaction between aluminum melt and granular SiO2 takes place , thus , Al / Al2O3 granular composite material in situ is prepared .

用线性最小二乘法、迭代法以及二分法与最小二乘法相结合的方法，以积分方程、微分方程和放热速率方程拟合DSC数据。

The DSC data obtained are fitted to the integral , differential and exothermic rate equations by linear least-squares , iterative , combined dichotomous and least-squares methods , respectively .

第三类是风化煤HA，它在高温放热效应前有一组较小的中温放热效应，其平均反应热为2.0～2.3千卡/克。

For the third kind which is from weathered coal before high-temp . exothermal effect there is also one smallish mid-temp . exothermal effect , average is 2.0 ~ 2.3 Kcal / g.

指出采用TPO法和TGA法测定时，受到反应放热和残留催化剂的影响，测定结果误差大；

Due to the influence of exothermic reaction process and remaining catalyst , the analytical error of TPO and TGA would be greater .

计算表明，在光诱导电荷分离之后的返回电子转移处于高放热的Marcus反转区。

It has been found that the return ET after the photoinduced charge separation is in the highly exoenergic Marcus inverted region .

DME比例加大，着火始点提前，放热率峰值上升，燃烧持续期缩短。

While the proportion of DME increased , the ignition time advanced , the peak heat release rate increased , and the combustion duration decreased .

SDS结合纤维素酶的亲和力较弱，为较小的放热反应，并伴随着一定程度的熵增，为焓和熵共同驱动的反应，而且存在着显著的焓-熵补偿作用。

The binding of SDS to cellulase is driven by a favorable entropy increase with a less favorable enthalpy decrease , and shows strong enthalpy-entropy compensation and weak affinity .