scholarly journals COMBINED EVAPORATOR WITH SEPARATE HEATING CHAMBER

2021 ◽  
Vol 86 (5-2) ◽  
Author(s):  
Askar Artikov ◽  
Zulhumar Masharipova ◽  
Marziya Karimullaeva
Keyword(s):  
Heating Chamber

scholarly journals The Process Automation of Temperature Measurement by Measuring Facility Which is Consists from Agilent E8363B and Freezer/Heating Chamber TNC-80

2018 ◽  
Vol 155 ◽  
pp. 01007
Author(s):  
Olga Dotsenko ◽  
Kirill Frolov
Keyword(s):  
Temperature Measurement ◽  
Magnetic Permeability ◽  
Virtual Instrument ◽  
Hexagonal Structure ◽  
Network Analyzer ◽  
Electromagnetic Parameter ◽  
Process Automation ◽  
Heating Chamber ◽  
Influence Of Temperature ◽  
Influence Of Temperature On

The vector network analyzer Agilent PNA series E8363B and freezer and heating chamber TNC-80 were used to measure electromagnetic parameters of natural and artificial substances under temperature influences. LabView 2016 software was used to the virtual instrument generation. This virtual instrument is needed for efficient electromagnetic parameter and temperature measurement automation. The virtual instrument framework and faceplate of the virtual instrument are shown. The present work involves an experimental study of the magnetic permeability of ferrites with hexagonal structure under temperature influences. It is show that there is a nonlinear influence of temperature on magnetic permeability of W-type ferrites.

Numerical Study on Fuel Preheating at Cold Start Phase in an Ethanol Flex Fuel Engine

2018 ◽  
Vol 140 (8) ◽  
Author(s):  
Ying Wang ◽  
Zhensheng Liu
Keyword(s):  
Temperature Field ◽  
Field Distribution ◽  
Numerical Study ◽  
Cold Start ◽  
Fuel Temperature ◽  
Temperature Field Distribution ◽  
Heating Chamber ◽  
Pure Ethanol ◽  
Engine Operation ◽  
Flex Fuel

The low vapor pressure of ethanol and the high latent heat of vaporization at low temperatures cause the difficulties of cold start in a flex fuel vehicle when it is fueled with pure ethanol. Preheating fuel is one of the effective methods to solve the above cold start problem. Thus, it is crucial to obtain the fuel temperature distribution in the heating system for fuel preheating process. For this purpose, the numerical analysis is adopted here to simulate the fuel preheating process at a cold start phase and explore the change of the fuel temperature field under different influence factors. The results indicate that the starting temperature has obvious impact on the temperature field distribution in the heating chamber and preheating time but has little effect on the volume of cold fuel in the connecting line at the end of heating. When the starting temperature is −5 °C, the preheating time is 8.3 s. When the starting temperature increases up to 15 °C, the preheating time will decrease as 4.9 s. Furthermore, the lower the starting temperature is, the higher the overall temperature of the heating chamber is. The installing angle of injectors has some influence on the temperature field distribution, and the cold fuel ratio reduces slightly when the angle increases from 30 deg to 60 deg. The calculation results indicate that the temperature of fuel at the injector inlet is above 20 °C, and the fuel injected during the first three cycles of the engine operation is hot fuel.

scholarly journals Impact of Holder Materials on the Heating and Explosive Breakup of Two-Component Droplets

Energies ◽  
2018 ◽  
Vol 11 (12) ◽  
pp. 3307 ◽  
Author(s):  
Dmitry Antonov ◽  
Jérôme Bellettre ◽  
Dominique Tarlet ◽  
Patrizio Massoli ◽  
Olga Vysokomornaya ◽  
...  
Keyword(s):  
Heating Time ◽  
Droplet Breakup ◽  
Flue Gases ◽  
Boiling Temperature ◽  
Temperature Minimum ◽  
Heating Chamber ◽  
Nichrome Wire ◽  
Two Component ◽  
Integral Characteristics ◽  
Heat Carriers

The heating of two-component droplets and the following explosive breakup of those droplets have been extensively studied over the most recent years. These processes are of high interest, since they can significantly improve the performance of many technologies in fuel ignition, thermal and flame liquid treatment, heat carriers based on flue gases, vapors and water droplets, etc. Research throughout the world involves various schemes of droplet heating and supply (or, less frequently, injection) to heating chambers. The most popular scheme features the introduction of a two-component or multi-component droplet onto a holder into the heating chamber. In this research, we study how holder materials affect the conditions and integral characteristics of droplet heating and explosive breakup: heating time until boiling temperature; minimum temperature sufficient for droplet breakup; number and size of fragments in the resulting droplet aerosol, etc. Experiments involve droplets that are produced from flammable (oil) and non-flammable (water) components with significantly different thermophysical and optical properties, as well as boiling temperature and heat of vaporization. The most popular elements with the scientific community, such as ceramic, steel, aluminum, copper, and phosphorus rods, as well as a nichrome wire, serve as holders. We establish the roles of energy inflow from a holder to a droplet, and energy outflow in the opposite direction. We compare the holder results with a supporting thermocouple, recording the drop temperature under a heat transfer provided at 350°C. Finally, we forecast the conditions that are required for a significant improvement in the performance of thermal and flame water treatment through the explosive breakup of two-component droplets.

Time Resolved Measurements of Pyrolysis Products From Thermoplastic Poly-Methyl-Methacrylate (PMMA)

2009 ◽  
Author(s):  
Cory A. Kramer ◽  
Reza Loloee ◽  
Indrek S. Wichman ◽  
Ruby N. Ghosh
Keyword(s):  
Methyl Methacrylate ◽  
Exothermic Reaction ◽  
Quantitative Information ◽  
Co2 Production ◽  
Heating Chamber ◽  
Time Resolved ◽  
Poly Methyl Methacrylate ◽  
Quantitative Measurements ◽  
Ir Heating ◽  
Flaming Combustion

The goal of this research is to obtain quantitative information on chemical speciation over time during high temperature material thermal decomposition. The long term goal of the research will be to impact structural fire safety by developing a data base of characteristic “burn signatures” for combustible structural materials. In order to establish procedure and to generate data for benchmark materials, the first material tested in these preliminary tests is poly-methyl-methacrylate (PMMA). Material samples are heated in an infrared (IR) heating chamber until they undergo pyrolysis. Time resolved quantitative measurements of the exhaust species CO2, O2, HC, and CO were obtained. During heating the PMMA sample undergoes two distinct processes. First, pre-combustion pyrolysis is characterized by the appearance a peak in the THC signal between 600–650 °C. Secondly, at about 900 °C flaming combustion occurs as evidenced by an exothermic reaction reported by the thermocouples. The time sequence of the production of HC, O2 depletion and CO2 production are consistent with combustion in an excess-oxidizer environment.

Application of computational techniques to model the safe operation of industrial heating chamber

2016 ◽  
Vol 4 ◽  
pp. 491-506
Author(s):  
Monika Zajemska ◽  
Henryk Radomiak ◽  
Dorota Musiał ◽  
Anna Poskart ◽  
Александр Олегович Ерёмин ◽  
...  
Keyword(s):  
Computational Techniques ◽  
Safe Operation ◽  
Heating Chamber ◽  
Industrial Heating

X-ray heating chamber investigations of reforming Pt-Al2O3 catalysts

1981 ◽  
Vol 16 (3) ◽  
pp. 367-375
Author(s):  
K. Richter ◽  
P. Bornmann
Keyword(s):  
Heating Chamber ◽  
X Ray

scholarly journals Improving the massecuite crystallization in sugar production

2021 ◽  
Vol 83 (1) ◽  
pp. 86-93
Author(s):  
N. G. Kulneva ◽  
V. A. Fedoruk ◽  
N. A. Matvienko ◽  
E. M. Ponomareva
Keyword(s):  
Operating Mode ◽  
Steam Pressure ◽  
Small Temperature ◽  
Steam Consumption ◽  
Heating Chamber ◽  
Heating Steam ◽  
Vacuum Apparatus ◽  
Continuous Vacuum ◽  
Product Department ◽  
Entire Apparatus

The article discusses the concepts of continuous vacuum apparatus operation: vertical VKT (VKT – Verdampfungs-Kristallisations-Turm) and horizontal cascade of VKH vacuum apparatus (VKH —horizontal vacuum pan) from BMA (Germany). The advantages and features of the vertical continuous vacuum apparatus VKT are shown, as well as the possibilities for increasing the efficiency of the product department of sugar factories. Thanks to the special design of the crystallization chambers, the low massecuite level above the heating chamber and the use of mechanical stirrers in each chamber, the VKT apparatus can operate without difficulty with a very small temperature difference between heating steam and massecuite, as well as with an absolute heating steam pressure well below 1 bar. With optimal use of VKT vacuum apparatus, a variety of energy-saving schemes can be implemented, for example, double-effect evaporation in the crystallization section. Part of the secondary crystallization steam is used to heat one of the VKT units, which saves the heating steam of the evaporator unit used for this purpose. With an increase in the productivity of the sugar factory, it is possible to quickly equip the VKT apparatus with an additional chamber. The device works continuously throughout the season, especially with products with massecuite purity of more than 94%. The chambers are cleaned without stopping the entire apparatus. The boiling of massecuite of all stages of crystallization in VKT devices ensures a uniform operating mode of the food compartment, allows to achieve an increase in sugar yield and helps to reduce steam consumption at the plant.

scholarly journals Application of Heating Chamber on Peltier Effect Based Thermoelectric Refrigerator

2020 ◽  
Vol 9 (1) ◽  
pp. 2149-2153
Keyword(s):  
Control Systems ◽  
Coefficient Of Performance ◽  
Peltier Effect ◽  
Thermoelectric Cooler ◽  
Climate Control ◽  
Heating Chamber ◽  
Heating And Cooling

As we know Peltier Effect is the presence of heating and cooling at an electrified junction of two different conductors. Over the years we've realized that fridge and climate control systems are the most vitality devouring home apparatuses and because of this numerous analysts had concocted a lot of examines in this field. Therefore, to conquer these issues, we have thought of thermoelectric cooler with the help of various assemblies as a progression in this field. It has settled the issues of intensity utilization, cooling execution, vibrations and support. It has been ended up being one of the best headways in this situation, which has altered the previously mentioned issues. To make it progressively adjusted, we are reusing emanating warmth to change over it into a warming chamber to keep the things warm also. We are computing out its coefficient of performance and low electricity usage to demonstrate its effectiveness to be superior to different frameworks in the field.

Sign in / Sign up

Export Citation Format

Share Document