Numerical simulation and parametric study of various operational factors affecting a PV-battery-air conditioner system under prevailing European weather conditions

2021 ◽  
Vol 67 ◽  
pp. 102754
Author(s):  
Huseyin Gunhan Ozcan ◽  
Szabolcs Varga ◽  
Huseyin Gunerhan ◽  
Arif Hepbasli
Keyword(s):  
Numerical Simulation ◽  
Parametric Study ◽  
Weather Conditions ◽  
Air Conditioner ◽  
Factors Affecting ◽  
Operational Factors

Lab Testing and Finite Element Method Simulation of Hole Deflector Performance for Radial Jet Drilling

2017 ◽  
Vol 139 (3) ◽  
Author(s):  
Bin Wang ◽  
Gensheng Li ◽  
Zhongwei Huang ◽  
Tianqi Ma ◽  
Dongbo Zheng ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Low Cost ◽  
Geometric Model ◽  
Frictional Resistance ◽  
Finite Element Method Simulation ◽  
Optimization Method ◽  
Structure Design ◽  
Coal Bed ◽  
Factors Affecting ◽  
High Pressure Water Jet

Radial jet drilling (RJD) is an efficient approach for improving the productivity of wells in low permeability, marginal and coal-bed methane (CBM) reservoirs at a very low cost. It uses high-pressure water jet to drill lateral holes from a vertical wellbore. The length of the lateral holes is greatly influenced by the frictional resistance in the hole deflector. However, the hole deflector frictional resistance and structure design have not been well studied. This work fills that gap. Frictional resistances were measured in a full-scale experiment and calculated by numerical simulation. The structure of the hole deflector was parameterized and a geometric model was developed to design the hole deflector track. An empirical model was then established to predict the frictional resistance as a function of the hole deflector structure parameters and an optimization method for designing the hole deflector was proposed. Finally, four types of hole deflectors were optimized using this method. The results show good agreement between the numerical simulation and the experimental data. The model error is within 11.6%. The bend radius R and exit angle β are the key factors affecting the performance of the hole deflector. The validation test was conducted for a case hole deflector (5½ in. casing). The measured frictional resistance was decreased from 31.44 N to 23.16 N by 26.34%. The results from this research could serve as a reference for the design of hole deflectors for radial jet drilling.

scholarly journals Experimental and Parametric Study of Extended Fins In The Optimization of Internal Combustion Engine Cooling Using CFD

2012 ◽  
pp. 81-90
Author(s):  
J.Ajay Paul ◽  
Sagar Chavan Vijay ◽  
U. Magarajan ◽  
R.Thundil Karuppa Raj
Keyword(s):  
Heat Transfer ◽  
Numerical Simulation ◽  
Internal Combustion Engine ◽  
Numerical Simulations ◽  
Parametric Study ◽  
Combustion Engine ◽  
Heat Transfer Characteristics ◽  
Engine Cooling ◽  
Fin Thickness ◽  
Annular Fins

In this experiment the single cylinder air cooled engines was assumed to be a set of annular fins mounted on a cylinder. Numerical simulations were carried out to determine the heat transfer characteristics of different fin parameters namely, number of fins, fin thickness at varying air velocities. A cylinder with a single fin mounted on it was tested experimentally. The numerical simulation of the same setup was done using CFD. The results validated with close accuracy with the experimental results. Cylinders with fins of 4 mm and 6 mm thickness were simulated for 1, 3, 4 &6 fin configurations.

Numerical simulation on factors affecting critical frequency of high-power photoconductive semiconductor switch

2010 ◽  
Vol 22 (11) ◽  
pp. 2778-2782
Author(s):  
赵越 Zhao Yue ◽  
谢卫平 Xie Weiping ◽  
李洪涛 Li Hongtao ◽  
刘金锋 Liu Jinfeng ◽  
刘宏伟 Liu Hongwei ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
High Power ◽  
Critical Frequency ◽  
Factors Affecting ◽  
Semiconductor Switch

Numerical simulation of gas‐assisted polymer‐melt electrospinning: Parametric study of a multinozzle system for mass production

2020 ◽  
Vol 60 (9) ◽  
pp. 2111-2121
Author(s):  
Youbin Kwon ◽  
Jihyun Yoon ◽  
Seung‐Yeol Jeon ◽  
Daehwan Cho ◽  
Kwangjin Lee ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Mass Production ◽  
Parametric Study ◽  
Polymer Melt ◽  
Melt Electrospinning

The Proposal of Wall Thickness Management Criteria of T-Pipes

2012 ◽  
Author(s):  
Kiyoharu Tsunokawa ◽  
Taku Ohira ◽  
Naoki Miura ◽  
Yasumi Kitajima ◽  
Daisuke Yoshimura
Keyword(s):  
Numerical Simulation ◽  
Wall Thickness ◽  
Parametric Study ◽  
The Other ◽  
Wall Thinning ◽  
Study Results ◽  
Simulation Results ◽  
Design Construction

Although the reinforcement for openings is checked in accordance with design / construction standard when thinning was observed in T-pipes, this evaluation becomes too conservative or requires much time and effort. This paper describes additional parametric study results and proposes a guideline for thickness management of wall thinning T-pipes. On the other papers related to this project, the experiment and numerical simulation results are reported. This paper referred these results and performed further investigation.

Buckling Strength of Pressurized Cylindrical Shells under Axial Compression

2014 ◽  
Vol 638-640 ◽  
pp. 1750-1753
Author(s):  
Yu Chao Zheng ◽  
Yang Yan ◽  
Pei Jun Wang
Keyword(s):  
Numerical Simulation ◽  
Internal Pressure ◽  
Axial Compression ◽  
Parametric Study ◽  
Shell Thickness ◽  
Steel Shell ◽  
Plastic Buckling ◽  
Buckling Strength ◽  
Elastic Plastic ◽  
Steel Strength

A systematic parametric study was carried out to investigate the elastic and elastic-plastic buckling behaviors of imperfect steel shell subject to axial compression and internal pressure. Studied parameters include the magnitude of internal pressure, steel strength, and ratio of cylinder radius to shell thickness. Design equations were proposed for calculating the elastic and elastic-plastic buckling strength of imperfect steel shells under combination of axial compression and internal pressure. The buckling strength predicated by proposed equations agrees well with that from the numerical simulation.

Sign in / Sign up

Export Citation Format

Share Document