نتایج جستجو برای ' Dust '

 In this work the properties of thermoelectric modules (TEMs) and their behavior have been numerically modeled. Moreover, their applications very often require modeling not only of the TEM but also of the working environment and the product in which they will be working. A clear example is the fact that TEMs are very often installed with heat-dissipating elements such as fans, heat sinks, and heat exchangers; thus, the module will only work according to the heat dissipation conditions that ...

 Industrial halls are mainly low-rise rectangular-shaped structures of simple construction. The relatively loose requirements in space conditioning and the comparatively high internal heat gain make the approach in industrial hall design quite different from that of office building design. The simplicity in building geometry and construction method allows the investigation of energy consumption for building services to be limited to a few demand-side parameters, namely, resistance of the ro...

 A ground heat exchanger system is applied as a way to improve the heat recovery ratio in a project using industrial waste heat recovery for district heating. In order to meet the requirements of industrial processes, the outlet water temperature of the system should be strictly controlled within a range, but the heat transfer power varies with the warming or cooling of the soil. An operation strategy named “block by block” is implemented and a corresponding model is established...

 Red Mud (RM) is a solid industrial waste remains from Bayer's process to produce of alumina from Bauxite ore. Annually, about 60 million tons of RM is produced all over the world that may cause serious danger for environment (due to its high alkalinity). RM has found many applications in science and industry e.g. production of color bricks, ceramics, cement, and adsorbents. Application of RM for environmental friendly purposes e. g. removal of heavy metal ions, inorganic anions, organics, ...

 Industrial waste generating has reached up to millions of tons yearly. One way to solve the problem of this large accumulating amount of waste could be to return back to soil. Thus, finding a way for use industrial waste could be a quest for soil improvement studies. Steel and copper sludge are from the main wastes in metal industrials. Industrial sludge in certain pozzolanic react with soil and water possess cementitious properties compounds. A pozzolan is a siliceous or siliceous and alu...

 Iron and Titanium impurities cause reduction of economical Kaolin Value. Abadeh Kaolin mine located in the South West of Iran contains huge amount of Kaolin ore including approximately 10% Iron Oxide, 0.1% Titanium Oxide and good Physical properties. In this research the possibility of impurities' reduction through magnetic separation, flotation, leaching and effective parameters on separation process has been considered. Iron Oxide was reduced equal 6% by applying magnetic separation test...

 Accident models and analysis its methods involves how an accident happens and organizing which causal factors helps the accident and which recommendations are issued. Industries such as air traffic control, nuclear power plants, space missions, chemical and petroleum industry, healthcare and patient safety is leading to potentially disastrous failure modes and new kinds of safety issues as well. These industries are facing with numerous models developed for accident investigation; however,...

 In this paper, we develop an approach in network revenue management problem, focused on hotel industry. The objective is to determine the booking price for the next 350 dates (one year) in advance, as well as to update them periodically. The main difficulty with determining the optimal solution of multiple-night stay is caused by the huge number of products. Each product (customer request for booking) depends on many factors such as duration of stay, arrival and departure dates, day of wee...

 Measurement in lean manufacturing refers to system leanness, so manufacturers should constantly assess the degree of adaptability1 of their systems to lean manufacturing criteria; but the main problem in assessing system leanness is ignoring the measurement values of people according to their skills and also applying heterogeneous paired comparisons for measuring the lean manufacturing factors. The purpose of this paper is improving dimensional analysis method as an efficient approach to d...

 The current study was conducted in Abbas Abad Industrial Park of Tehran and aimed to analyze the mediating role of job satisfaction between job organization and job performance of 200 employees in 10 manufacturing companies. After distribution of questionnaires among respondents, 178 usable questionnaires were returned. The research method used for this study is descriptive-correlation. Moreover, the analysis was carried out utilizing Structural Equation Modeling (SEM). The factors analysi...