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Defects could be inevitably generated during the growth or the artificial operation of graphene. The existence of structure defects could be influence to excellent properties of graphene. Non-equilibrium molecular dynamics (NEMD) simulations was used to investigate the thermal conductivity of graphene with single vacancy (SV) and stone-wales (SW) defects. Dependence of temperature showed that thermal...
Defects could be inevitably generated during the growth or the artificial operation of graphene. The existence of structure defects could be influence to excellent properties of graphene. Non-equilibrium molecular dynamics (NEMD) simulations was used to investigate the thermal conductivity of graphene with single vacancy (SV) and stone-wales (SW) defects. Dependence of temperature showed that thermal...
The thermal conductivity of finite-length singlewalled carbon nanotubes (SWCNTs) was investigated using non-equilibrium molecular dynamics (NEMD) simulations. The temperature and diameter dependence of thermal conductivity was studied in this paper. In this work, thermal conductivity of SWCNTs with the length of 24.5nm and different diameter — (6, 6), (7, 7), (8, 8), (10, 10), (15, 15) was studied...
The performance of additional vinyl liquid silicone rubber (LSR) were investigated based on accelerated aging test in different environment. The mechanical properties were studied in different experimental environments. Meanwhile, the cross-linking densities of the investigated samples were obtained by equilibrium swelling method. The article analyzed the changes of cross-linking density in different...
In this paper, a control-oriented model has been investigated for the evaporator in an Organic Rankine Cycle (ORC) system. Due to the nonlinearity and uncertainty existed in the evaporator, the model parameters of the evaporator have been identified by the recursive least square algorithm with forgetting factor. The improved generalized predictive control algorithm with constraints is then utilized...
In this paper, a nonlinear model identification method is applied to a thermal plant. The aim of this work is to develop a moderately complex model with interpretable structure for a complex evaporator, which is the main component of Organic Rankine Cycle System. Based on the subtractive clustering algorithm, the T-S (Takagi-Sugeno) model is derived. The clustering centers can be obtained automatically...
The moving boundary method is used to model the evaporator in waste heat recovery system. Four reducing algorithms, balanced truncation reducing method, its modified balanced singular perturbation approximation, time scale method and time scale method combined with singular perturbation are discussed in detail. For the practical application of evaporator, the low-order models are obtained by four...
In this paper, a computational simulation system for modeling the solidification heat transfer process in a continuous casting facility for bloom is discussed. High chromium alloy irons are chosen to research, e.g. T91. The numerical approximation of the model is finite difference method. The software is developed based on this model. This software can calculate the bloom surface and liquid core temperature,...
In this paper, we evaluate the cabin system of human-vehicle-environment of contain vehicle aggregately based on analytic hierarchy process method. And then detail the evaluation methods, principles and processes. The analysis of the vehicle comfortableness can improve the driving safety, guarantee the driver security and reduce the wrong operation effectively. We first state the aim and meaning of...
The present article used the testing method to study the aerosol particle number concentration distribution of particle size-interval between 0.3~10μm in floor heating room under no ventilation in Taiyuan city. Experimental results showed that: Indoor air circulation formed by natural convection is the main influence that determines the indoor aerosol particle distribution; the rough cement wall and...
The present article used the testing method to study the aerosol particle number concentration distribution of particle size-interval between 0.3~10 μm in floor heating room when natural ventilated in Taiyuan city. Experimental results showed that: Natural ventilation led into fresh air, it also brings particles pollution especially the small particles; The produce of particle with diameter below...
Two kinds of ultrafine polyester nonwoven wadding different in weight were tested, and two kinds of hollow-core polyester wadding available in market were chosen as contrast. Then four clothing ensembles which were filled in four different kinds of thermal materials respectively were made. The contents of tests involved material properties and clothing wearing comfort (through objective thermal manikin...
In view of the fact that solar energy is difficult to match the heating requirements of architecture, the phase change heat storage with helical coil structure is designed, in which paraffin is chosen as phase change medium. The heat performance of the storage unit under four different kinds of operation conditions is researched by experiment. By analyzing the moving law of phase change interface...
A predictive control model of radiant floor heating system is developed based on BP (back propagation) neural network, Which consists of input layer(14), hidden layer(16) and output layer(1). The model is trained with the experiment data and the on-line correction predictive control is conducted. The maximum relative error between the indoor temperature given by the on-line correction predictive control...
Heating due to high power 1 H decoupling limits the experimental lifetime of protein samples for solid-state NMR (SSNMR). Sample deterioration can be minimized by lowering the experimental salt concentration, temperature or decoupling fields; however, these approaches may compromise biological relevance and/or spectroscopic resolution and sensitivity. The desire to apply sophisticated multiple...
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