An Interactive Computer Simulation of Heating and Cooling a Row of Silicon Wafers

1988 ◽  
Vol 135 (5) ◽  
pp. 1266-1271 ◽  
Author(s):  
M. A. Tavel ◽  
E. W. Hearn
Keyword(s):  
Computer Simulation ◽  
Silicon Wafers ◽  
Heating And Cooling

Structural and Energy Characteristics of NiAl Alloys with Deviations from Stoichiometric Composition. General Provisions. Part 1

2020 ◽  
pp. 22-28
Author(s):  
A.I. Potekaev ◽  
A.A. Chaplygina ◽  
M.D. Starostenkov ◽  
A.A. Klopotov ◽  
V.V. Kulagina ◽  
...  
Keyword(s):  
Mathematical Model ◽  
Computer Simulation ◽  
Structural Phase ◽  
Stoichiometric Composition ◽  
General State ◽  
Energy Characteristics ◽  
Heating And Cooling ◽  
Pearson Symbol ◽  
Bcc Structure ◽  
Condensed Systems

The research results are presented in two parts. The first part presents data describing the general state of the problem of low-stability pre-transitional structural phase states in intermetallides of the Ni-Al system. Physical interpretations of low-stability structural phase states in condensed systems are described along with the applied physical-mathematical model based on a calculated block of 32x32x32 elementary cells (65536 atoms) of an ordered BCC structure (superstructure B2, Pearson symbol cP2). The study is carried out by Monte Carlo methods using the Metropolis algorithm for an intermetallic NiAl sample of stoichiometric composition (used as an example). It is found out that a kind of hysteresis is observed during thermal cycling. The presence of such hysteresis indicates the irreversibility of the occurring processes. This implies a difference in the structural phase states at the heating and cooling stages. The second part of the paper will demonstrate the results of a computer simulation of changes in structural phase states. The focus will be made on the low-stability pre-transitional structural phase states and energy characteristics of intermetallides образом with deviations from the stoichiometric composition of Ni45Al55 and Ni55Al45.

Design and Performance of the Van Geet Off-Grid Home

2004 ◽  
Vol 126 (2) ◽  
pp. 738-743 ◽  
Author(s):  
C. Dennis Barley ◽  
Paul Torcellini ◽  
Otto Van Geet
Keyword(s):  
Computer Simulation ◽  
Energy Efficient ◽  
Performance Monitoring ◽  
Energy Use ◽  
Energy Savings ◽  
Energy Performance ◽  
Hot Water ◽  
Domestic Water ◽  
Heating And Cooling ◽  
And Performance

The Van Geet home near Denver, Colorado, demonstrates the successful integration of energy conservation measures and renewable energy supply in a beautiful, comfortable, energy-efficient, 295-m23,176-ft2 off-grid home in a cold, sunny climate. Features include a tight envelope, energy-efficient appliances, passive solar heating (direct gain and Trombe wall), natural cooling, solar hot water, and photovoltaics. In addition to describing this house and its performance, this paper describes the recommended design process of (1) setting a goal for energy efficiency at the outset, (2) applying rules of thumb, and (3) using computer simulation to fine-tune the design. Performance monitoring and computer simulation are combined for the best possible analysis of energy performance. In this case, energy savings are estimated as 89% heating and cooling (compared to 95 MEC), 83% electrical, and nearly 100% domestic water heating. The heating and cooling energy use is 8.96kJ/°Cs˙days˙m20.44Btu/°Fs˙days˙ft2.

Computer Simulation of Heat Flow Induced by Laser Irradiation in Presence of Heat Sinks or Sources

1992 ◽  
Vol 279 ◽  
Author(s):  
Sebastiano Tosto
Keyword(s):  
Computer Simulation ◽  
Thermal Properties ◽  
Heat Flow ◽  
Laser Irradiation ◽  
Thermal Field ◽  
Heat Sinks ◽  
Heat Sources ◽  
Local Phase ◽  
Additional Energy ◽  
Heating And Cooling

ABSTRACTThe paper concerns the computer simulation of heat flow induced on matter by laser irradiation in presence of heat sources or sinks. The model is 3D analytical and accounts for the dependence of thermal properties of matter on temperature. The results describe in particular the effect of a heat source due to a local phase change or solid state reaction releasing energy in a point of the laser affected zone. The purpose of the paper is to evidence how this additional energy affects the thermal field and then the heating and cooling rates. PACS 47.25.-Qv

Design and Performance of the Van Geet Off-Grid Home

Solar Energy ◽  
2003 ◽  
Author(s):  
C. Dennis Barley ◽  
Paul Torcellini ◽  
Otto Van Geet
Keyword(s):  
Computer Simulation ◽  
Energy Efficient ◽  
Performance Monitoring ◽  
Energy Use ◽  
Energy Savings ◽  
Energy Performance ◽  
Hot Water ◽  
Domestic Water ◽  
Heating And Cooling ◽  
And Performance

The Van Geet home near Denver, Colorado, demonstrates the successful integration of energy conservation measures and renewable energy supply in a beautiful, comfortable, energy-efficient, 295-m2 (3,176-ft2) off-grid home in a cold, sunny climate. Features include a tight envelope, energy-efficient appliances, passive solar heating (direct gain and Trombe wall), natural cooling, solar hot water, and photovoltaics. In addition to describing this house and its performance, this paper describes the recommended design process of (1) setting a goal for energy efficiency at the outset, (2) applying rules of thumb, and (3) using computer simulation to fine-tune the design. Performance monitoring and computer simulation are combined for the best possible analysis of energy performance. In this case, energy savings are estimated as 89% heating and cooling, 83% electrical, and nearly 100% domestic water heating. The heating and cooling energy use is 8.96 kJ/°C·day·m2 (0.44 Btu/°F·day·ft2).

scholarly journals Validation of MEMS Based New MicroLPCVD Technique for Thin Films Deposition

2020 ◽  
Vol 15 (2) ◽  
pp. 1-5
Author(s):  
Ricardo A.R. Oliveira ◽  
Marcelo N. P. Carreño ◽  
Inés Pereyra
Keyword(s):  
Thin Films ◽  
Computer Simulation ◽  
Recent Work ◽  
Simulation Study ◽  
Thermal Response ◽  
Microcrystalline Silicon ◽  
Computer Simulation Study ◽  
Heating And Cooling ◽  
Heating Region ◽  
Short Heating

In this work we present and optimized a new microCVD technique to produce thin films for microelectronics devices. The technique was first presented in a recent work and here we successfully utilize to produce microcrystalline Silicon films at 1 Torr and temperatures of 740 oC, utilizing SiH4 as precursor gas. The technique is based on a MEMS micro- heater and presents 3 main advantages: (1) the heating region is very localized, (2) allows to attain easily temperatures as high as 1000 oC) and (3) present very short heating and cooling time. In addition to the fabrication process of MEMS micro-heater, we also present a multiphysics computer simulation study to understand its thermal response of MESM micro-heater and to predicting the final temperatures attainable with the technique.

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