In order to save the large amount of energy consumption associated with traditional water-bath LNG vaporizer, this paper proposes a novel design for liquefied natural gas (LNG) vaporizer by comprehensively applying exothermic property hydrogen storage metals and high efficiency solar devices. paper, working theory proposed is first addressed; then, system featuring new 1312 mm diameter 4000 length designed, its feasibility demonstrated through technical economic analysis. After comparison,...

In the actual soil environment, due to unpredictable characteristics of metal pitting corrosion. Therefore, in this study, composed different concentrations corrosion medium was used for mental test, and experimental results single ion multiple ions were compared. At same time, behavior metals is introduced combination with mathematical model unsteady diffusion. addition, cellular automata verification method study comparison diffusion growth pit iteration steps under discrete model. The...

Natural gas leakage causes waste of resources, environmental pollution and even serious harm to human life property safety. However, there is little research related natural casing leakage. This paper establishes a three-dimensional physical model buried for the first time. Based on seven parameters, such as filler, hole spacing (HRD) diameter ratio (HCR), 12 simulation working conditions are set up. By combining diffusion multivariate linear regression theory, prediction under certain...

Although rheumatoid arthritis (RA) is a chronic systemic tissue disease often accompanied by osteoporosis (OP), the molecular mechanisms underlying this association remain unclear. This study aimed to elucidate pathogenesis of RA and OP identifying differentially expressed mRNAs (DEmRNAs) long non-coding RNAs (lncRNAs) using bioinformatics approach. Expression profiles individuals diagnosed with were retrieved from Gene Omnibus database. Differential expression analysis was conducted....

This article dealt with the photocatalytic oxidation of formaldehyde, a representative indoor contaminant contained in air. A numerical model was developed for analyzing degradation formaldehyde based on experimentally estimated kinetic parameters. achieved by constructing two different configuration reactors operating under control regime and steady conditions. The radiation velocity fields were simulated using computational fluid dynamics (CFD) methods. installed an external recirculation...

At present, there has a problem that the gas source in Vehicle CNG stations(VCS) supplied short domestic vehicle market which huge potential. This paper suggests Gas company proposed organization, environment-friendly energy fund(EEF), corporate money funds to gather plenty of private capital make or pay smooth implementation this economic strategy, thus ensuring industry chain on middle and lower reaches coordinated development, at same time, take without discussion(TPWD) between upper low...

A new biogas company is a way to achieve industrial biogas. The key constituent part of operation process contains characteristic win-win cycle and dragon pig farm which make use rural cheap land resources. object that it form voluntary mutually beneficial cooperation between the farmers depend on an agreement freely give their straw while provide certain methane Anaerobic Fermentation Residues (AFR) as feedback. By doing this, can obtain plenty raw materials, AFR at close quarters generate...

Abstract Background Rheumatoid arthritis (RA) is a chronic systemic tissue disease characterized by osteoporosis and fragility fractures. However, the molecular mechanisms remain unclear. The aim of this study was to identify differentially expressed genes, associated biological processes long non-coding RNAs (lncRNAs) between RA using bioinformatics approach elucidate pathogenesis. Results A total 28 mRNAs 2 lncRNAs were both in osteoporosis. Chromosome mapping consensus DEmRNAs revealed...

More and more attention was paid to the prediction of pipeline operational risk loss in planning stage, among which key steps include failure probability consequence stage. In this paper, an effective model is established predict Firstly, Fault Tree Analysis (FTA) modeling carried out for urban natural gas network. According expert evaluation, 84 factors that can be determined stage are selected as input variables training Then FTA used calculate theoretical value, then with optimal Network...

At present, research on the refrigerant ratio optimization based dynamic boil-off gas (BOG) is limited. Therefore, a new method of for C3MR liquefaction presented. Firstly, simulation program established steady state model main equipment. Besides, rules energy consumption under range BOG generation propane compressor and mixed obtained, multi-objective model, which has minimum high heat efficiency, constructed. Afterwards, genetic algorithm (GA) particle swarm (PSO) are designed to determine...

The BOG prediction are the keys to design LNG storage tanks and recycling. At present, there is no relevant study on dynamic law of generation caused by SEMPs operation. Thus, a heat transfer model based outer wall SEMP dissipation established. unloading condition low-temperature liquid two-phase flow simulated using fluid volume method (VOF) model, phase change under static pressure analyzed. Then, simulation established utilizing finite element combined with steady-state evaporation error...

At present, research on the refrigerant ratio optimization based dynamic boil-off gas (BOG) is limited, and breakthroughs are scarce. Therefore, a new method of for C3MR liquefaction presented. Firstly, simulation program established with HYSYS base steady state model main equipment. Besides, rules energy consumption under range BOG generation propane compressor mixed obtained, multi-objective model, which has minimum high heat efficiency, constructed. Afterwards, genetic algorithm (GA)...