Comparative Analysis of Window Thermal Performance Calculation Method between Window Certification Systems

2015 ◽  
Vol 31 (9) ◽  
pp. 119-127
Author(s):  
So Young Koo
Keyword(s):  
Comparative Analysis ◽  
Thermal Performance ◽  
Calculation Method ◽  
Performance Calculation

scholarly journals Vehicle Radiators’ Performance Calculation and Improvement Based on the Coupling of Multi-scale Models Simulations

2014 ◽  
Vol 8 (1) ◽  
pp. 636-642 ◽  
Author(s):  
Liu Shui-Chang ◽  
Li Li-Fu ◽  
Zhang Yong
Keyword(s):  
Flow Field ◽  
Thermal Performance ◽  
Calculation Method ◽  
Cooling Power ◽  
Body Structure ◽  
Multi Scale ◽  
Scale Models ◽  
Core Body ◽  
Side Flow ◽  
Performance Calculation

In simulation of the heat transfer between radiator and air flow field, the adoption of the radiator full-size model containing its core body structure with small feature sizes would require huge storage space and not be economical. In view of this question, based on the coupling of multi-scale models simulations, a calculation method of radiator performance is proposed in this paper the reliability of which is verified by an experiment test. Subsequently, the influence on the radiators’ thermal performance of the layout of the parts in front of the radiators is analyzed. Lastly, the layout of the front parts is modified to enhance the radiators’ thermal performance. The investigation results indicate that: the radiators’ thermal performance calculation method based on simulations coupling of radiator multi-scale models considers the influences of air-side flow field distribution and the core body structure details; the error of the calculating values from the method is less than 5%, and the method is reliable; when the heat source parts in front of the radiators are situated right in front of the rear fan channel, the radiators thermal performance is better; the radiators cooling power increases 19.3kW after layout modification of the front heat resource parts.

Model and Algorithm for Thermal Performance Calculation of Power Station Boiler Based on Process Steady-State Simulation Theory

2013 ◽  
Vol 483 ◽  
pp. 587-593
Author(s):  
Hong Kai Liao ◽  
Yue Xi Yu ◽  
Yan Ling Wu ◽  
Wei Zhong
Keyword(s):  
Steady State ◽  
Thermal Performance ◽  
Simulation Theory ◽  
General Purpose ◽  
Thermal Calculation ◽  
Process Unit ◽  
Power Station ◽  
Steady State Simulation ◽  
Power Station Boiler ◽  
Performance Calculation

Thermal performance calculation is the core task of designing power station boiler. By abstracting generalized components and generalized fluid nodes, and defining the process unit and process section at the logic level, the universal physical model of boiler was built in a particular form of flowsheet. Meanwhile, a sequential modular approach was proposed as the main algorithm for boiler thermal calculation based on process system steady-state simulation theory. Two key problems in the algorithm, i.e., module calculations and the logics of calling the modules calculations were explained. Finally, a practically developed system BESS, which has excellent flexibility and extensibility was presented. It turns out that the model and algorithm can be successfully employed in developing the general-purpose software for boiler thermal calculation.

Computing Method Investigation and Verification of Gas-Solid Combustion in Magnesium-Aluminum Based Propellant Ducted Rocket

2012 ◽  
Vol 503-504 ◽  
pp. 490-493
Author(s):  
Wei Wang ◽  
Jiang Li ◽  
Ke Zhang ◽  
Yang Liu
Keyword(s):  
Temperature Distribution ◽  
Flow Field ◽  
Thermal Performance ◽  
Discrete Models ◽  
Combustion Mechanism ◽  
Field Information ◽  
Ducted Rocket ◽  
Reaction Equations ◽  
Performance Calculation ◽  
Computing Method

The combustion mechanism, which consisting of 22 species and 23 reaction equations, and three discrete models such as inertia, combusting, modification droplet, are employed for the investigation of gas-solid combustion in magnesium-aluminum based propellant ducted rocket based on thermal performance calculation. And path lines, temperature distribution, sediments are discussed after the computing method is validated by direct-connect experimentation and the flow field information, which obtained by numerical method and coincided with currently conclusions. The results indicated that the proposed method is reliable and practicable.

A simplified approach to thermal performance calculation for building integrated mechanically ventilated PV facades

2006 ◽  
Vol 41 (7) ◽  
pp. 893-901 ◽  
Author(s):  
David Infield ◽  
Ursula Eicker ◽  
Volker Fux ◽  
Li Mei ◽  
Jürgen Schumacher
Keyword(s):  
Thermal Performance ◽  
Mechanically Ventilated ◽  
Simplified Approach ◽  
Performance Calculation
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