Academic literature on the topic 'Hot Box'

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Journal articles on the topic "Hot Box"

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Sun, Qing Zhou, Li Jin, Pu Qing Zhang, Zhong Kui Zhao, Jian Wang, and Jing Guang Yan. "The Process Adaptability Study under the Conditions of Reclaimed Clay Sand Variable System." Applied Mechanics and Materials 432 (September 2013): 11–15. http://dx.doi.org/10.4028/www.scientific.net/amm.432.11.

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This paper studies the process adaptability of reclaimed clay sand with core sand, and discovers that the reclaimed clay sand with furan resin self-setting sand can be used to mix the water-glass sand and hot core box sand; but it can not be used to mix the cold core box sand and coated sand. The reclaimed clay sand with water-glass sand can not be used to mix the hot core box sand, cold core box sand and coated sand; the reclaimed clay sand with hot core box sand can be used to mix the water-glass sand, cold core box sand and coated sand; the reclaimed clay sand with cold core box sand can be used to mix the water-glass sand, coated sand and hot core box sand. The reclaimed clay sand with coated sand can be used to mix the water-glass sand, but when it is used to mix the hot core box sand and cold core box sand, it can meet general requirements of the casting production; the completely reclaimed clay sand can not be used to mix the resin self-setting sand.
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Yuan, Xiao Hong, Qiang Sun, Xian Jun Hou, Shu Chen, Zhi En Liu, and Ya Dong Deng. "Evaluation and Analysis of Temperature Uniformity for Planar Automotive Waste Heat Thermoelectric Generator." Applied Mechanics and Materials 190-191 (July 2012): 688–92. http://dx.doi.org/10.4028/www.scientific.net/amm.190-191.688.

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The present paper discusses temperature distribution of Thermoelectric Generator (TEG) using automotive waste heat , an index to evaluate the temperature uniformity of hot end box surface of TEG is proposed. Three-dimensional heat transfer model is established to simulate the temperature distribution on hot end box surface of TEG with computational fluid dynamic program FLUENT. The simulation result indicates that under the same topology of thermoelectric modules , the internal structure inside the hot end box could effectively improve the heat transfer between waste gas and hot end box, raising the hot end box surface average temperature by 7.2 percent from 534.2K of to 572.6K ; raising the temperature uniformity coefficient by 4.8 percent from 0.83 to 0.87, the result shows that the waste gas could be utilized more efficiently and generate more output.
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Wolfenden, A., RR Zarr, DM Burch, TK Faison, CE Arnold, and ME O'Connell. "Calibration of the NBS Calibrated Hot Box." Journal of Testing and Evaluation 15, no. 3 (1987): 167. http://dx.doi.org/10.1520/jte11003j.

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Binark, A. K., and N. Türkmen. "Modelling of a hot box solar cooker." Energy Conversion and Management 37, no. 3 (March 1996): 303–10. http://dx.doi.org/10.1016/0196-8904(95)00183-2.

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Binark, A. K., and N. Turkmen. "Modelling of a hot box solar cooker." Fuel and Energy Abstracts 37, no. 3 (May 1996): 200. http://dx.doi.org/10.1016/0140-6701(96)88786-8.

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Zhang, Gui Jie, Kang Li, and Ying Zi Wang. "Numerical Simulation of Hot Rolled Coil Temperature Field in Hot Coil Box." Advanced Materials Research 338 (September 2011): 572–75. http://dx.doi.org/10.4028/www.scientific.net/amr.338.572.

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The heat transfer model was developed and the heat transfer of the strip coil stay in the hot coil box was analyzed. The temperature distribution of the strip coil was investigated use the model. The measured results are in good agreement with the calculated ones, has a guiding significance to further improve the technology.
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Hu, Xin Ping, and Wei Long Diao. "The Structural Design and Analysis for the Box-Wrench’s Hot Extrusion Die." Applied Mechanics and Materials 446-447 (November 2013): 655–59. http://dx.doi.org/10.4028/www.scientific.net/amm.446-447.655.

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Box-Wrench is a tool widely used in industry and especially suitable for screwing the bolt and the nut in the place where the space is very narrow and dent. In this paper, a process of hot extrusion box-wrench was presented. The structure of hot extrusion die and its working process were discussed. The feasibility of the process and the workability of the die were analyzed with Finite Element Analysis. The external diameter and the length of the box-wrench are designed according to the equipment's shape and size, the box-wrench's structure should be relatively flexible. How to manufacture the box-wrench in high efficiency and with high quality is the most important question of the box-wrench producing.
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Klychev, Sh I., A. I. Ismanzhanov, S. A. Bakhramov, Yu A. Dudko, and M. Samiev. "Convective heat exchange in solar “hot box” interlayers." Applied Solar Energy 44, no. 2 (June 2008): 97–99. http://dx.doi.org/10.3103/s0003701x08020084.

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Wolfenden, A., and MG Van Geem. "Overview of the Workshop for Hot Box Operators." Journal of Testing and Evaluation 15, no. 3 (1987): 136. http://dx.doi.org/10.1520/jte10999j.

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Wolfenden, A., RR Gerace, GD Derderian, PC Cirignano, RD Orlandi, and LS Shu. "An Operational Procedure for Guarded Hot Box Testing." Journal of Testing and Evaluation 15, no. 3 (1987): 138. http://dx.doi.org/10.1520/jte11000j.

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Dissertations / Theses on the topic "Hot Box"

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Freitas, Helena Robalinho. "Novas formulações de areias de macho para processo Hot Box." Master's thesis, Universidade de Aveiro, 2016. http://hdl.handle.net/10773/16971.

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Mestrado em Ciência e Engenharia de Materiais
O presente trabalho foi executado no âmbito do estágio curricular realizado na empresa de produção de componentes sanitários Grohe Portugal, sediada na zona industrial de Albergaria-a-Velha. Trata-se de uma indústria de fundição de latão, cujos produtos abrangem sobretudo torneiras e chuveiros. O trabalho teve como principal objetivo criar novas formulações de areias de macho para o processo Hot Box, por forma a melhorar a qualidade dos machos produzidos. Foi iniciada uma análise do sistema utilizado pela Grohe, incluindo o controlo das principais variáveis inerentes ao processo. Verificou-se que as matérias-primas utilizadas (areia, resina, endurecedor e conservante) eram as adequadas e, quantitativamente, o doseamento de cada uma delas era o correto. A distribuição granulométrica da areia utilizada (areia SP 45) cumpria as especificações técnicas dadas pelo fornecedor. Foi feita uma análise à temperatura das caixas de macho, tendo sido constatado que os valores eram os adequados ao processo. Foram realizadas análises térmicas à areia de macho: análise térmica diferencial (ATD) e análise termogravimétrica (ATG). Através da relação entre perdas de massa e reações endo/exotérmicas compreendeu-se melhor o processo químico de polimerização da resina furânica do tipo ureia-formaldeído usada no fabrico dos machos. Foram ainda realizados ensaios mecânicos de flexão e compressão a um conjunto de provetes representativos destes machos. Os provetes foram preparados numa máquina de machos manual e, numa segunda tentativa, utilizando partes de machos da produção. Em ambos os casos, os valores de resistência mecânica medidos após diferentes tempos de repouso após cura, ao longo de 6h, não foram constantes, revelando alguma falta de reprodutibilidade na preparação dos provetes. Numa segunda fase do trabalho, foram definidas diferentes formulações de machos, variando o tipo de areia utilizada e a proporção REC/A (quantidade de resina+endurecedor+conservante/quantidade de areia). Para isso foram utilizadas quatro areias diferentes (SP 45, SP 55, SP 49 e H-S 00108) e comparadas entre si em termos de distribuição granulométrica, tamanho médio de grão, morfologia do grão e área superficial específica. Para as diferentes quantidades de matérias-primas utilizadas, foram usadas as proporções de REC/A (em peso) = 1%, 1,4%, 1,6%, 1,9%, 2,4% e 2,8%. Em seguida, 0h e 24h após a preparação dos provetes, foram executados na empresa Fundipor (fornecedora da Grohe) ensaios de resistência à flexão, de dureza e de permeabilidade às diferentes composições de machos. Este conjunto de ensaios permitiu concluir que o melhor sistema para o processo Hot Box, é a nova formulação com areia SP 55 e proporção REC/A = 1,5%. Uma análise de consumos com esta formulação revelou uma poupança de 23% em resina, 22% em endurecedor e 25% em conservante.
This work was performed under the internship carried out in the sanitary components production company Grohe Portugal, located in the industrial park of Albergaria-a-Velha. Grohe is a brass foundry company, whose products include mainly faucets and showerheads. The work aimed to create new formulations of core sands for Hot Box process, in order to improve their quality and reduce fabrication costs. Firstly, an analysis of the system used by Grohe was carried out, including the control of the key variables inherent to the process. It was concluded that the raw materials used (sand, resin, hardener and additive) and the relative amounts were adequate. The size distribution of the sand used (SP 45) followed the technical specifications provided by the supplier. The temperature of the core boxes was measured and found correct. Thermal analyses were performed on the core sand: differential thermal analysis (DTA) and thermogravimetric analysis (TGA). The relationship between mass loss and endo/exothermic reactions, allowed a better understanding of the chemical polymerization process of the furan resin urea-formaldehyde used in the cores. Bending and compression mechanical tests were also carried out to produce a set of representative samples of Grohe sand cores. Samples were firstly prepared manually in a core machine and, in a second attempt, using parts of production cores. In both cases, mechanical strength values measured at fixed intervals over a period of 6h after curing were not constant, showing that there was no reproducibility regarding the specimen’s preparation. In a second part of the work, different formulations of cores were defined by varying the type of sand used and the ratio REC/A (amount of resin + hardener + additive / amount of sand). For this, four different types of sand were used (SP 45, SP 55, SP 49 and H-S 00108) and compared in terms of particle size distribution, average grain size, grain morphology and specific surface area. For different quantities of raw materials used, the proportions in weight percent were REC/A = 1%, 1,4%, 1,6%, 1,9%, 2,4% and 2,8%. After 0h and 24h of sample preparation, bending tests, hardness tests and permeability tests were performed at Fundipor (a Grohe supplier). It was concluded that the best system for the Hot Box process should be a new formulation with sand SP 55 and a ratio of REC/ A= 1,5%. Moreover, the analysis of consumptions revealed that this formulation allows the following savings at Grohe: 23% of resin, 22% of hardener and 25% of additive.
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Dimitriadou, Eleni Anastasia. "Experimental assessment and thermal characterisation of lightweight co-polymer building envelope materials." Thesis, University of Bath, 2015. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.675716.

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Co-polymer facade materials have recently become a popular option in the building industry as an alternative to glazing. Ethylene Tetra-Fluoro-Ethylene (ETFE) foil has been successfully used in many projects as an innovative solution to energy-conscious design challenges. In addition, the use of ETFE membrane has resulted in significant savings in cost and structural support requirements, compared with conventional glazing, due to its low weight. There is a lack of detailed published data reporting its thermal behaviour. This study focuses on the examination of heat transfer through the ETFE membrane, and more specifically heat loss and solar gains. The document examines the impact of the material on the energy use of a building, as well as thermal comfort and interior conditions. Through field-testing and computer simulations the research evaluates the material’s thermal properties to obtain results that will assist in estimating the suitability of ETFE foil use in comparison to glass. Field-testing is used to perform a comparison of the thermal and energy behaviour of a fritted double ETFE cushion to a double glazed cover. The two experimental devices under examination present nearly identical energy consumption due to heating requirements. The experimental findings are implemented in Integrated Environmental Solutions (IES) and used to identify the necessary steps to accurately reproduce the thermal and energy behaviour associated with both covering materials. Further simulations were undertaken to provide a comparison of several types of ETFE cushions to various types of double glass. More specifically, the types examined are a clear double ETFE roof cover and a fritted double ETFE roof cover in comparison to a standard double glazed roof and a low-E double glazed roof. The roofs covers are examined in relation to energy requirements for both the heating and cooling of a space. Such an assessment of performance will provide information for further investigation to improve the material’s features and optimise energy performance.
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Hlavsa, Petr. "Optimalizace vlastností formovací směsi vodního jádra hlav válců." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2008. http://www.nusl.cz/ntk/nusl-228316.

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Submitted thesis deals with the change of existing binding system for the Hot–Box method for hardening serving for manufacturing of shell cores the water space of cylinder heads comprise of. Objectives for proposing new binding system for Warm–Box method of hardening under heat are to achieve reduction in creation of condensates and gas substances in binding material compared with existing binding system. Further the thesis is aimed at achieving optimal operating hardness the cores have by reduced batches of binding system and by reduced temperatures of cores in scope reflecting manufacturing conditions in the company Nemak Slovakia s.r.o. While resolving issues there were used methods for evaluating quality of opening materials, core mixtures and cores, further methods for evaluating quality of melt, casts and basic methods for statistical processing of results.
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Erezkano, Garai Garazi. "Heat transfer evaluation of a window with a ”hot box” set-up in a 18th century stone building by using COMSOL software." Thesis, Högskolan i Gävle, Avdelningen för byggnadsteknik, energisystem och miljövetenskap, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-29705.

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The hot box technique is an experimental method to achieve the U-value of elements in stationary conditions; however, it is not always possible to work in stationary conditions in real world. This thesis consisted of evaluating the heat transfer of a window of a historical building with a unique hot box set-up. The window had a low emissivity plastic film to improve thermal efficiency, and the hot box was unique because the outside temperature could not be controlled. The applicability of the hot box technique to dynamic conditions was assessed using COMSOL Multiphysics 5.3. COMSOL Multiphysics is a finite element method solver software with a heat transfer module. Two heat transfer simulations were conducted in 2D based on the indoor and outdoor temperature when the hot box was in operation. First, a stationary study was carried when the outdoor temperature remained stable for 1 day. Then, the study was extended to a transient study to analyze in detail the effect of the external temperature fluctuations for 5 days. The results indicate that a cautious approach should be taken when applying the hot box technique under transient conditions, but that stationary conditions could not be achieved during one day. Nevertheless, the reliability of the simulation solution could have improved more.
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Griffiths, P. W. "An examination of the thermophysical nature of solar-control films using an illuminated hot box and computer based simulation modelling techniques." Thesis, Cranfield University, 1994. http://hdl.handle.net/1826/4031.

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Solar-control films are increasingly being retrofitted to the windows of buildings as a means of reducing solar gain. At present, there is a dearth of information concerning how these films effect the thermal comfort of occupants within buildings where these films have been applied. An illuminated hot box, utilising a xenon lamp to simulate sunlight, has been designed as a testing facility. The illuminated hot box has been used to obtain information on how much thermal radiation enters the internal space from a window fitted with a solar-control film. The data from the experimental apparatus was verified using a finite-difference model written on a personal computer, with the aim of the computer program being used to compare different films, and thereby avoiding expensive experiments. The experimental rig produced usable data for the tested films only when the lamp was orthogonal to the plane of the glass, with errors occurring, and increasing, as the angle of incidence between the lamp and the glass increased. This conclusion was verified by the computer based model. It was seen that the illuminated hot box was too small to give accurate measurements for angles of incidence other than 0°. It is suggested that a larger illuminated hot box which is able to eliminate the problems encountered when measuring for angles of incidence above 10° would be desirable. Furthermore, a more complex transient finite-difference computer based simulation model is needed, taking into account the conclusions that were made during this study.
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Mazálek, Karel. "Tepelné čerpadlo pro ohřev teplé vody." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2018. http://www.nusl.cz/ntk/nusl-378273.

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This Master's thesis deals with reusing waste heat from the kitchen and .cold rooms of a restaurant, as a source of heat for heat pump water heater. The first part is about basic principles and theory which is needed to understand the function of heat pump and possibilities of reusing wasted heat. In the other parts, there are calculations and designs not only of a heat pump, but also coolers and ventilation unit needed for recycling of heat.
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Durukan, Ilker. "Effects Of Induction Heating Parameters On Forging Billet Temperature." Master's thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/12608879/index.pdf.

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Induction heating is one of the efficient and modern technique for heating raw materials for hot forging process. The induction heating furnaces use electro-magnetic field to transfer energy to the metal workpiece and heat is generated inside the material. The magnetic field can be provided by using induction coil. The power supplied to induction coil, the moving speed of the billet that is called conveyor speed and the coil box hole diameter are the factors affecting the resultant temperature of the heated billet. In this study, AISI 1045 type steel billets with a diameter of Ø
30 mm and length of 100 mm have been heated in a particular induction heater. During heating, effects of different levels of power, conveyor speed and the coil boxes with different hole diameters are investigated. The 125 KW 3000 Hz induction heater which is available in METU-BILTIR Research and Application Center Forging Laboratory is used in experiments. The heating experiments are designed according to 23 Factorial Design of Experiment Method. Multiple linear regression technique is used to derive a mathematical formula to predict the temperature of the heated billet. A good correlation between the measured temperatures that are the results of different sets of induction heating parameters and the predicted temperatures that are calculated by using temperature prediction formula has been observed.
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Bahrar, Myriam. "Contribution au développement et à l’analyse d’une enveloppe de bâtiment multifonctionnelle dans le cadre de l’optimisation du confort dans l’habitat." Thesis, Lyon, 2018. http://www.theses.fr/2018LYSEE001/document.

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Le secteur du bâtiment recèle un fort potentiel d’amélioration de l'efficacité énergétique et de réduction de l’empreinte écologique. Dans cette optique, l’enveloppe du bâtiment joue un rôle important pour relever le défi de la transition énergétique. En effet, une bonne conception de l’enveloppe contribue efficacement à réduire la consommation d’énergie tout en réduisant les émissions de CO2 associés. Cela s’accompagne notamment d’une démarche de développement de nouveaux matériaux et principes constructifs. Ce projet de thèse s’inscrit dans ce cadre en proposant un nouveau matériau composite, qui porte sur l’association de deux matériaux innovant : composite textile mortier (TRC) et matériaux à changement de phase (MCPs). L’objectif de cette combinaison est de contribuer au développement d’éléments de façades multifonctionnelles permettant d’allier performances énergétiques, mécaniques et environnementales. Le but de notre étude est de caractériser en premier lieu, les propriétés mécaniques et thermiques de ces composites puis, d’évaluer l’impact des MCPs sur le confort thermique intérieur pour différentes configurations. Pour atteindre ces objectifs, nous avons adopté une démarche expérimentale et numérique multi échelle. Une campagne expérimentale à l’échelle du laboratoire et in-situ a été menée. En parallèle, nous avons développé un modèle numérique de paroi multicouche, couplé à un modèle de bâtiment. Enfin, nous avons exploité ce couplage pour réaliser une optimisation multicritère à base d’algorithmes génétiques
The building sector has a great potential to improve energy efficiency and reduce the greenhouse gas emissions. Improvements to the building envelope and Innovations in building materials have the potential to achieve sustainability within the built environment. This PhD thesis focuses on the development of multifunctional façade elements in order to optimize the building energy consumption while maintaining an optimal indoor human thermal comfort. The proposed solution consist of using passive storage by means of phase change materials associated with alternative construction materials such as textile reinforced concrete (TRC). The aim of the study is to characterize mechanical and thermal properties of TRC composites and to evaluate the effect of PCMs on indoor thermal comfort. To meet these objectives, experimental devices have been set up for the characterization (at the component scale and in situ) of the mechanical and thermal behaviour of different TRC panels. In parallel, we have developed a numerical model for the prediction of wall temperature profiles. Finally, a multi-objective optimization of the façade elements is carried out using genetic algorithms to determine the better combinations able to combine the energy performance with the mechanical performance
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Gustavsson, André. "Prognossäkerhet : Tillför en heteroskedastisk modell någon säkerhet hos Box och Jenkins prognosmodeller?" Thesis, Umeå University, Department of Statistics, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-34825.

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Rauchfussová, Karolína. "Studium užitných vlastností tepelně-reflexních izolací pro stavebnictví." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2017. http://www.nusl.cz/ntk/nusl-295661.

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Presented work deals with the study progressive heat-reflecting foil thermal insulating materials and defines their thermal insulation properties. The work describes a transport mechanism of thermal energy in the structure of heat-reflecting materials, their physical properties, especially heat resistance, compared to the conventional thermal insulating materials available on Czech market. The main applications ways and installation methods of these materials (especially in low-energy and passive buildings) are also shown. The practical part is focused on asembling the measuring device HOT BOX in accordance with the valid standards, to determine the heat resistance of heat-reflecting materials. In next step the measurement of reflection of aluminum foils (an integral part of the structural arrangement heat-reflecting foil insulations) was performed.
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Books on the topic "Hot Box"

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Zane. The hot box. Waterville, Me: Thorndike Press, 2011.

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Zane. The hot box: A novel. New York: Atria Paperback, 2011.

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Wheaton, Wil. Sunken treasure: Wil Wheaton's hot cocoa box sampler. Pasadena, CA: Monolith Press, 2009.

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Onega, Ronald J. Thermal flanking loss calculations for the National Bureau of Standards calibrated hot box. [Washington, DC]: U.S. Dept. of Commerce, National Bureau of Standards, 1985.

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Singer, Marilyn. Boo hoo boo-boo. [New York]: HarperFestival, 2002.

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Malcolm, Jahnna N. Boo hoo? London: Lions, 1995.

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Jeffrey, Reid, ed. Boo-hoo! London: Collins Educational, 1994.

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Tankard, Jeremy. Boo hoo Bird. New York: Scholastic Press, 2009.

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Disney Enterprises. Pixar Animation Studios. Yoo-hoo! Boo! Franklin, TN: Dalmatian Press, LLC, in conjunction with Disney Enterprises, Inc., 2013.

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Palatini, Margie. Boo-hoo moo. New York: Katherine Tegen Books, 2008.

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Book chapters on the topic "Hot Box"

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Farooqui, Akhlaq A. "Neural Membranes: A Pandora’s Box of Lipid Mediators." In Hot Topics in Neural Membrane Lipidology, 1–36. New York, NY: Springer US, 2008. http://dx.doi.org/10.1007/978-0-387-09693-3_1.

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Bepperling, Sonja-Lara, and Andreas Schöbel. "Estimation of Safety Requirements for Wayside Hot Box Detection Systems." In FORMS/FORMAT 2010, 135–43. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-14261-1_14.

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Chichernea, Florin. "Value Analysis and Optimization a Machining Process for Hot-Box Core." In Software Engineering in Intelligent Systems, 359–70. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-18473-9_35.

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Wilkes, K. E., T. W. Petrie, and P. W. Childs. "Precision and Bias of the Large Scale Climate Simulator in the Guarded Hot Box and Cold Box Modes." In Thermal Conductivity 23, 395–406. Boca Raton: CRC Press, 2021. http://dx.doi.org/10.1201/9781003210719-42.

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Clarhaut, Joffrey, Etienne Lemaire, and El Miloudi El Koursi. "Methodology for Assessing Safety Systems Application for a Railway Hot Box Protection System★." In FORMS/FORMAT 2010, 125–33. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-14261-1_13.

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Kim, Kacy K., and Sukki Yoon. "The Dynamics of eWOM and Business Outcomes: An Empirical Investigation of the Impact of Social Media on Box Office Revenue." In Celebrating America’s Pastimes: Baseball, Hot Dogs, Apple Pie and Marketing?, 441. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-26647-3_89.

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Winarta, Adi, I. Made Rasta, I. Nyoman Suamir, and I. G. K. Puja. "Experimental Study of Thermoelectric Cooler Box Using Heat Sink with Vapor Chamber as Hot Side Cooling Device." In Proceedings of the 2nd International Conference on Experimental and Computational Mechanics in Engineering, 389–99. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-0736-3_37.

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Seitz, Aaron, Kaushik Biswas, Kenneth Childs, Lawrence Carbary, and Roland Serino. "High-Performance External Insulation and Finish System Incorporating Vacuum Insulation Panels—Foam Panel Composite and Hot Box Testing." In Next-Generation Thermal Insulation Challenges and Opportunities, 1–20. 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959: ASTM International, 2014. http://dx.doi.org/10.1520/stp157420130093.

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Kumar, Sunil, Saikat Ranjan Maity, and Lokeswar Patnaik. "Application of Box-Behnken Method for Multi-response Optimization of Turning Parameters for DAC-10 Hot Work Tool Steel." In Lecture Notes in Mechanical Engineering, 407–15. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-15-7711-6_42.

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Yang, Wansheng, Zhangyuan Wang, Xuejun He, and Xudong Zhao. "Comparative Study on the Insulation Performance of a Lightweight Planted Roof Module Based on Outdoor Guarded Hot-box Testing Method." In Lecture Notes in Electrical Engineering, 337–46. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-39584-0_38.

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Conference papers on the topic "Hot Box"

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Shokouhmand, Hossein, and Manoochehr Bozorgmehrian. "Conjugated Heat Transfer in Skirt Hot Box in Pressure Vessels." In ASME 8th Biennial Conference on Engineering Systems Design and Analysis. ASMEDC, 2006. http://dx.doi.org/10.1115/esda2006-95729.

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Pressure vessels are common equipment in oil, gas and petrochemical industries. In a hot containing fluid vessel, excessive temperature gradient at junction of skirt to head (weld line), can cause unpredicted high thermal stresses; Thereby fracture of the vessel may occur as a result of cyclic operation. Providing a hot box (air pocket) in crotch space is a economical, applicable and easy mounted method in order to reduce the intensity of thermal stresses. Natural convection due to temperature difference between the wall of pocket, will absorb heat near the hot wall (head of the vessel) and release that near the cold wall (skirt of the vessel), then the skirt wall conducts heat to the earth as a fin. This conjugated heat transfer removes the temperature gradient boundary at welded junction. This phenomena will lead the temperature gradient on the weld line from a sudden to smooth behavior, thereby the skirt-head junction, that is a critical region, could be protected from excessive thermal stresses. In this paper the profit of hot box and conjugated heat transfer in cavity has been demonstrated experimentally. As a result it is shown that the conductive heat transfer through the skirt (which acts as a fin) ensures the continuation of natural convection in the box. Also the governing equations has been solved numerically and compared with experimental results.
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Tarawneh, Constantine, James A. Aranda, Veronica V. Hernandez, and Claudia J. Ramirez. "An Analysis of the Efficacy of Wayside Hot-Box Detector Data." In 2018 Joint Rail Conference. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/jrc2018-6218.

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Wayside hot-box detectors (HBDs) are devices that are currently used to monitor bearing, axle, and brake temperatures as a way of assessing railcar component health and to indicate any possible overheating or abnormal operating conditions. Conventional hot-box detectors are set to alarm whenever a bearing is operating at a temperature that is 94.4°C (170°F) above ambient, or when there is a 52.8°C (95°F) temperature difference between two bearings that share an axle. These detectors are placed adjacent to the railway and utilize an infrared sensor in order to obtain temperature measurements. Bearings that trigger HBDs or display temperature trending behavior are removed from service for disassembly and inspection. Upon teardown, bearings that do not exhibit any discernible defects are labeled as “non-verified”. The latter may be due to the many factors that can affect the measurement of HBDs such as location of the infrared sensor and the class of the bearing among other environmental factors. A field test was performed along a route that is more than 483 km (300 mi) of track containing 21 wayside hot-box detectors. Two freight cars, one fully-loaded and one empty, and one instrumentation car pulled by a locomotive were used in this field test. A total of 16 bearings (14 Class F and 2 Class K) were instrumented with K-type bayonet thermocouples to provide continuous temperature measurement. The data collected from this field test were used to perform a systematic study in which the HBD IR sensor data were compared directly to the onboard thermocouple data. The analyses determined that, in general, HBDs tend to overestimate Class K bearing temperatures more frequently than Class F bearing temperatures. Additionally, the temperatures of some bearings were underestimated by as much as 47°C (85°F). Furthermore, the HBD data exhibited some false trending events that were not seen in temperature histories recorded by the bayonet thermocouples. The findings from the field test suggest that HBDs may inaccurately report bearing temperatures, which may contribute to the increased percentage of non-verified bearing removals. To further investigate the accuracy of the wayside detection systems, a dynamic test rig was designed and fabricated by the University Transportation Center for Railway Safety (UTCRS) research team at the University of Texas Rio Grande Valley (UTRGV). A mobile infrared sensor was developed and installed on the dynamic tester in order to mimic the measurement behavior of a HBD. The infrared temperature measurements were compared to contact thermocouple and bayonet temperature measurements taken on the bearing cup surface. The laboratory-acquired data were compared to actual field test data, and the analysis reveals that the trends are in close agreement. The large majority of temperature measurements taken using the IR sensor have been underestimated with a similar distribution to that of the data collected by the HBDs in field service.
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Milic, Sasa. "Optical device of non-contact temperature measurement and hot box detecting." In Optics East 2006, edited by Anbo Wang, Christopher S. Baldwin, and Alex A. Kazemi. SPIE, 2006. http://dx.doi.org/10.1117/12.685354.

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Vitoshkin, Helena, Avraham Arbel, and Vitaly Haslavsky. "Improving Greenhouse Insulation through Multilayer Thermal Screens Using the Hot Box Method." In The 5th World Congress on Mechanical, Chemical, and Material Engineering. Avestia Publishing, 2019. http://dx.doi.org/10.11159/htff19.124.

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Xiumu Fang, Rui Zhang, and Yujiao Zhao. "Study on the method of use hot-box to calibrate heat flux sensor." In 2011 Second International Conference on Mechanic Automation and Control Engineering (MACE). IEEE, 2011. http://dx.doi.org/10.1109/mace.2011.5987767.

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Mealer, Arthur, Constantine Tarawneh, and Stephen Crown. "Radiative Heat Transfer Analysis of Railroad Bearings for Wayside Hot-Box Detector Optimization." In 2017 Joint Rail Conference. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/jrc2017-2260.

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The railroad industry utilizes wayside detection systems to monitor the temperature of freight railcar bearings in service. The wayside hot-box detector (HBD) is a device that sits on the side of the tracks and uses a non-contact infrared sensor to determine the temperature of the train bearings as they roll over the detector. Various factors can affect the temperature measurements of these wayside detection systems. The class of the railroad bearing and its position on the axle relative to the position of the wayside detector can affect the temperature measurement. That is, the location on the bearing cup where the wayside infrared sensor reads the temperature varies depending on the bearing class (e.g., class K, F, G, E). Furthermore, environmental factors can also affect these temperature readings. The abovementioned factors can lead to measured temperatures that are significantly different than the actual operating temperatures of the bearings. In some cases, temperature readings collected by wayside detection systems did not indicate potential problems with some bearings, which led to costly derailments. Attempts by certain railroads to optimize the use of the temperature data acquired by these wayside detection systems has led to removal of bearings that were not problematic (about 40% of bearings removed were non-verified), resulting in costly delays and inefficiencies. To this end, the study presented here aims to investigate the efficacy of the wayside detection systems in measuring the railroad bearing operating temperature in order to optimize the use of these detection systems. A specialized single bearing dynamic test rig with a configuration that closely simulates the operating conditions of railroad bearings in service was designed and built by the University Transportation Center for Railway Safety (UTCRS) research team at the University of Texas Rio Grande Valley (UTRGV) for the purpose of this study. The test rig is equipped with a system that closely mimics the wayside detection system functionality and compares the infrared sensor temperature reading to contact thermocouple and bayonet temperature sensors fixed to the outside surface of the bearing cup. This direct comparison of the temperature data will provide a better understanding of the correlation between these temperatures under various loading levels, operating speeds, and bearing conditions (i.e. healthy versus defective), which will allow for an optimization of the wayside detectors. The impact on railway safety will be realized through optimized usage of current wayside detection systems and fewer nonverified bearings removed from service, which translates into fewer costly train stoppages and delays.
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Ploumen, P. J., and J. J. Veenema. "Dutch Experience With Hot Windbox Repowering." In ASME 1996 International Gas Turbine and Aeroengine Congress and Exhibition. American Society of Mechanical Engineers, 1996. http://dx.doi.org/10.1115/96-gt-250.

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The combination of a topping Brayton (gas turbine) cycle with an existing Rankine (boiler-steam turbine) cycle for improved overall cycle heat rate has been very successful in the Netherlands. In the years 1985–1989 10 gas-fired power plants with a capacity of nearly 4000 MW were substantially modernized by adding a gas turbine topping cycle. In all these cases the Hot Wind box repowering or Windbox repowering with a supplementary boiler option was chosen. Besides the improvement of the heat rate it was remarkable that a NOx-emission reduction was achieved between 50 and 85%. So far more than 500,000 hours experience with hot windbox is available. If NOx-reduction becomes very important windbox repowering is the best option to modernize power plants.
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Prasanna, D., and K. Aung. "Combustion Hot Spot Analysis for Single-Side-Fired Tubes in a Floor-Fired Box Furnace." In ASME 2006 International Mechanical Engineering Congress and Exposition. ASMEDC, 2006. http://dx.doi.org/10.1115/imece2006-13838.

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The combustion zone in a process heater can be treated as an agglomeration or series of confined jet-flame systems that emanate from burner tiles and expand to an allocated fire box crosssectional area. Possible failure of the tubes containing the process fluid due to local over heating requires the ability to predict detailed radiative heat flux and temperature distribution from the knowledge of the inlet and boundary condition and the system geometry. An analytical model has been developed which is capable of determining the heat transferred by radiation. The variation of the dimensionless heat flux number with varying firebox to burner area ration, length to clearance ratio and a dimensionless distance along the combustion zone is studied. A C-program is developed which displays these results for various single-side-gas-fired tubes in floor-fired box furnace geometry. Results were also displayed for the variation of heat flux along the length of the vertical tube carrying the process fluid for single side fired tubes in a two-burner floor-fired box. The results of the analytical model developed are in good agreement with the published data.
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Gu, Hong-Jun, Ji Li, Shi-Jun Li, He Gong, Jian Li, and Yong-Chen Luo. "Design of Intelligent Water-Supply and Temperature Control System Based on Hot Water Box." In 2016 7th International Conference on Mechatronics, Control and Materials (ICMCM 2016). Paris, France: Atlantis Press, 2016. http://dx.doi.org/10.2991/icmcm-16.2016.40.

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O’Leary, Timothy, and Aidan Duffy. "The Design, Construction and Commissioning of a Small Scale Dynamic Calibrated Hot Box (CHB)." In 7th International Building Physics Conference. Syracuse, New York: International Association of Building Physics (IABP), 2018. http://dx.doi.org/10.14305/ibpc.2018.ps32.

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Reports on the topic "Hot Box"

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Onega, R. J. Thermal flanking loss calculations for the National Bureau of Standards calibrated hot box. Gaithersburg, MD: National Bureau of Standards, 1985. http://dx.doi.org/10.6028/nbs.ir.83-2804.

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Ban, Heng. Optical Fier Based System for Multiple Thermophysical Properties for Glove Box, Hot Cell and In-Pile Application. Office of Scientific and Technical Information (OSTI), November 2017. http://dx.doi.org/10.2172/1431205.

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SEIDEL CM, JAIN J, and OWENS JW. LASER ABLATION-INDUCTIVELY COUPLED PLASMA-ATOMIC EMISSION SPECTROSCOPY STUDY AT THE 222-S LABORATORY USING HOT-CELL GLOVE BOX PROTOTYPE SYSTEM. Office of Scientific and Technical Information (OSTI), February 2009. http://dx.doi.org/10.2172/949753.

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LOCKREM LL, OWENS JW, and SEIDEL CM. LASER ABLATION-INDUCTIVELY COUPLED PLASMA-ATOMIC EMISSION SPECTROSCOPY STUDY AT THE 222-S LABORATORY USING HOT-CELL GLOVE BOX PROTOTYPE SYSTEM. Office of Scientific and Technical Information (OSTI), March 2009. http://dx.doi.org/10.2172/950468.

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Oosterbaan, Anne, Freerk Wiersum, and Jim van Laar. Meer producten uit het bos : mogelijkheden voor andere producten dan hout. Wageningen: Wageningen University & Research, 2017. http://dx.doi.org/10.18174/412191.

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Lindley, Roy A. Guidance on How to Report Testing of BOP Shear Rams. Office of Scientific and Technical Information (OSTI), May 2018. http://dx.doi.org/10.2172/1463247.

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Sneekes, A. C., and E. van Barneveld. Resultaten van het Rijkswaterstaat JAMP2017 monitoringsprogramma van bot (Platichthys flesus L.) : biologische en chemische gegevens van JAMP Bot. IJmuiden: Wageningen Marine Research, 2019. http://dx.doi.org/10.18174/454716.

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Brodie, John H. How Bob Laughlin Tamed the Giant Graviton from Taub-NUT Space. Office of Scientific and Technical Information (OSTI), July 2001. http://dx.doi.org/10.2172/784958.

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den Ouden, J., G. M. J. Mohren, J. den Ouden, and G. M. J. Mohren. De ecologische aspecten van vlaktekap in het Nederlandse bos : Rapport voor het ministerie van LNV in het kader van de Bossenstrategie. Wageningen: Wageningen University & Research, 2020. http://dx.doi.org/10.18174/534859.

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Kitti, Kurt J. Base Operations Support (BOS) Competitive Sourcing and Privatization: How Are We Doing? Fort Belvoir, VA: Defense Technical Information Center, April 2001. http://dx.doi.org/10.21236/ada407046.

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