scholarly journals GPC Temperature Control of A Simulation Model Infant-Incubator and Practice with Arduino Board

2017 ◽  
Vol 8 (6) ◽  
Author(s):  
E. Feki ◽  
M. A. ◽  
A. Mami
Keyword(s):  
Simulation Model ◽  
Temperature Control ◽  
Infant Incubator

Heating Performance Research in the Running-In Process of Wet Friction Clutch

2014 ◽  
Vol 614 ◽  
pp. 12-15
Author(s):  
Yu Fei Liu ◽  
Xiu Chao Bai ◽  
Xin Li ◽  
Yong Liang Lei
Keyword(s):  
Simulation Model ◽  
Temperature Control ◽  
Temperature Rise ◽  
Analysis Model ◽  
Heating Performance ◽  
Wet Friction ◽  
Friction Clutch ◽  
Simulation Results ◽  
Model Of Friction ◽  
Performance Research

The heating in the running-in process of wet friction clutch is the key to research in this kind of products. In this paper, based on the shifting clutch composed of metal and paper-based friction liner, using MATLAB/SIMULINK software, the simulation model of friction clutch and the analysis model of conducting heat were established. Thus, the corresponding relationships were obtained, which were the total friction power and clutch temperature variation with the time during the running-in process. According to the simulation results, the main influencing factors on temperature control of wet friction clutch were analyzed during running-in process, and the results could provide reference for reasonable temperature rise control for the clutch.

Temperature Control Planning Tool for Multi-Lift Resurfacing of Airport Pavements

2019 ◽  
Vol 2673 (7) ◽  
pp. 380-389 ◽  
Author(s):  
Longjia Chu ◽  
Baihe Zhu ◽  
T. F. Fwa
Keyword(s):  
Simulation Model ◽  
Temperature Control ◽  
Time Variation ◽  
Time Window ◽  
Asphalt Mixture ◽  
Time Lapse ◽  
Planning Tool ◽  
Time Duration ◽  
Deformation And Failure ◽  
Temperature Time

Overnight repairs and resurfacing of runway or taxiway pavements are common in busy airports. The time window available for such repair and resurfacing works is often limited. A common problem encountered is to ensure that the newly compacted asphalt mixture has cooled down sufficiently before receiving aircraft loadings, so as to avoid premature deformation and failure of the asphalt mixture. In this regard, a simulation model that provides a prediction of the temperature–time variation trend of each compacted pavement lift in a multi-lift asphalt course laying would be a valuable planning tool for temperature control. Information on the temperature cooling trend of an asphalt layer helps to estimate the time duration available for effective compaction during laying, as well as the time lapse needed before the pavement is sufficiently stable to receive traffic. A finite element simulation model is presented in this study to predict the temperature–time variation trends of successive asphalt lifts in a multi-lift asphalt mixture laying operation. The numerical model was developed based on the theory of thermodynamics taking into account the heat transfer effects of solar radiation, convection, and conduction. The model was calibrated and validated using data from a field trial involving a two-lift and a three-lift laying of asphalt mixtures. Illustrative examples are presented to demonstrate the applications of the simulation model as a temperature control planning tool for repair and resurfacing operations of airport pavements.

scholarly journals Design and Simulation of Infant Incubator with Temperature Control

IARJSET ◽  
2021 ◽  
Vol 8 (8) ◽  
Author(s):  
Sushil a ◽  
H Prasanna Kumar
Keyword(s):  
Temperature Control ◽  
Infant Incubator

scholarly journals Design of an Enhanced Temperature Control System for Neonatal Incubator

2013 ◽  
Vol 5 (1) ◽  
pp. 53-61 ◽  
Author(s):  
Tamanna Afrin Tisa ◽  
Zinat Ara Nisha ◽  
Md Adnan Kiber
Keyword(s):  
Control System ◽  
Temperature Control ◽  
Pulse Width Modulation ◽  
Medical Physics ◽  
Temperature Control System ◽  
Month Of Birth ◽  
Voltage Output ◽  
Infant Incubator ◽  
Temperature Monitor ◽  
Range Of Variation

Worldwide every year over 4 million infants die within a month of birth. Of this number, 3.9 million belong to the developing world. Some (25%) of this deaths are caused due to complications of prematurity, most often due to improper heat regulation, water loss and neonatal jaundice. An infant incubator provides stable levels of temperature, relative humidity and oxygen concentration. Temperature control system is the most important part of a baby incubator which has to be maintained around 37°C. In the present work we have designed and developed an enhanced temperature control system incorporating a combination of Pulse Width Modulation (PWM) and simple ON-OFF control system, where thermistors have been used as temperature sensors. The range of variation of temperature against the set temperature (37°C) has been found to be 1°C which is satisfactory. A temperature monitor has been designed through a circuit network incorporating a thermistor so that the voltage output is linearly related to the temperature. This allowed the use of a simple millivoltmeter to display the temperature directly through appropriate scaling. To ensure the safety of the baby an alarm circuit was designed which provides sound alarms for personnel attention if the temperature goes beyond a specified safe range, chosen here as 26°C – 38°C. In developing countries, like Bangladesh frequent power cuts demand an uninterrupted operation of incubator and a battery back up system, which could also be powered by a solar panel, has been suggested for this purpose. DOI: http://dx.doi.org/10.3329/bjmp.v5i1.14668 Bangladesh Journal of Medical Physics Vol.5 No.1 2012 53-61

scholarly journals An Integrated Thermal-Electrical Model for Simulations of Battery Behavior in CubeSats

2021 ◽  
Vol 11 (4) ◽  
pp. 1554
Author(s):  
Sara Vega Martinez ◽  
Edemar Morsch Filho ◽  
Laio Oriel Seman ◽  
Eduardo Augusto Bezerra ◽  
Vicente de Paulo Nicolau ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Simulation Model ◽  
Temperature Control ◽  
Integrated Model ◽  
Energy Conditions ◽  
Electrical Model ◽  
Photovoltaic Panels ◽  
Electrical Simulation ◽  
Proposed Model ◽  
Harvesting Process

This work presents an integrated thermal-electrical simulation model, capable of taking into account the thermal and electrical effects of the battery and photovoltaic panels for each instant of time in a given orbit and attitude. Using the physical equations that govern the thermal and electrical models involved during a CubeSat operation, the proposed integrated model can estimate the temperature and energy conditions of the battery, not only in an isolated way but also in considering the mutual effects on the system. Besides, special attention is given to photovoltaic panels used in the energy harvesting process, whose performance is affected by irradiance and temperature along the orbit. The integrated model can be useful for engineers when developing the subsystems of their CubeSats, taking into account, for example, the battery temperature control through a heater. Simulations were performed to illustrate the functioning of the proposed model with variations in the power requirements of its modules and the temperature of the battery throughout the orbit, and a heater’s influence on it.

A High Angle, Double Tilting Cold Stage for the AEI EM7

1974 ◽  
Vol 32 ◽  
pp. 450-451
Author(s):  
P.R. Swann ◽  
A.E. Lloyd
Keyword(s):  
Habit Plane ◽  
Temperature Control ◽  
Tilt Angle ◽  
Cooling System ◽  
Thermal Drift ◽  
High Angle ◽  
Cold Stage ◽  
High Degree ◽  
Better Than

Figure 1 shows the design of a specimen stage used for the in situ observation of phase transformations in the temperature range between ambient and −160°C. The design has the following features a high degree of specimen stability during tilting linear tilt actuation about two orthogonal axes for accurate control of tilt angle read-out high angle tilt range for stereo work and habit plane determination simple, robust construction temperature control of better than ±0.5°C minimum thermal drift and transmission of vibration from the cooling system.

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