cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.18462/iir.tptpr.2017.0105
title: The experimental study of two-phase flow distribution in vertical header.

description: In order to reduce refrigerant charge, tube sizess of the heat exchanger are reduced, the number of heat exchanger paths of refrigerants have increased. Therefore, the design technologies of vertical headers are recently getting stronger attention. This paper, present results of, two-phase flow distribution characteristics obtained in experimentally investigation of flow through vertical header for different refrigerant mass flux and vapor quality.The experiment is conducted for R32 and R410A. The effects of mass flux, vapor quality and refrigerant properties on two-phase flow distribution are discussed.Mal-distribution in the vertical header is caused by no liquid reaching the top of header and colliding at top of the header. In addition, the modified header prediction model shows good agreement with the present experimental data.
DOI: 10.7487/2017.185.1.1065
title: Eleanor Keppie

description: cal fin, cal hel and euph D4
DOI: 10.7487/2017.186.1.1067
title: Karen Stamieszkin

description: all cpr phyto for north atlantic
DOI: 10.18462/iir.tptpr.2017.0047
title: Condensation heat transfer and pressure drop of R-410a in flat aluminum multiport tubes.

description: Brazed heat exchangers with aluminum flat multi-port tubes are being used as condensers of residential air-conditioners. In this study, R-410A condensation tests were conducted in four multi-port tubes having a range of hydraulic diameter (0.78 &lt; Dh &lt; 0.95 mm). The test range covered the mass flux from 100 to 400 kg m-2s-1 and the heat flux at 3 kW m-2, which are typical operating conditions of residential air conditioners. Results showed that both the heat transfer coefficient and the pressure drop increased as the hydraulic diameter decreased. The effect of hydraulic diameter on condensation heat transfer was much larger than the predictions of existing correlations for the range of investigation. Comparison of the data with the correlations showed that some correlations reasonably predicted the heat transfer coefficient. However, most of the correlations highly overpredicted the pressure drop data.
DOI: 10.18462/iir.tptpr.2017.0053
title: Condensation heat transfer of low-GWP blends for air conditioning applications.

description: The substitution of greenhouse gases is a real challenge for the refrigeration and air-conditioning industries. Some blends of low-GWP refrigerants have been developed to satisfy the demand for a wide range of working conditions and substitute R410A in air-conditioning applications and R404A in refrigeration applications. In this paper, the local heat transfer coefficient is measured during condensation of two blends: R455A and R452B. The new experimental data are compared to condensation data of pure low-GWP refrigerants, such as R1234yf and R32. Tests are performed inside a 1 mm diameter minitube at 40°C mean saturation temperature. During condensation tests, the heat is subtracted from the fluid by using cold water. The local heat transfer coefficient is obtained by measuring the heat flux on the water side and the wall temperature along the channel. The effects of mass flux and vapor quality on the condensation heat transfer are investigated. The heat transfer data are compared against a model: this comparison allows to assess a procedure for estimating the heat transfer penalization due to the mass transfer resistance and to highlight the amplitude of such heat transfer penalization.
DOI: 10.18462/iir.tptpr.2017.0057
title: Study on supercooling phenomenon of normal paraffin particles inside a phase change emulsion.

description: A phase change emulsion (PCE) is a mixture of an aqueous solution and fine particles of a phase change material (PCM). PCE is attracting attention as a novel thermal medium because it offers not only high-density thermal storage but also easy heat transportation due to its high fluidity. However, there is a problem in practical utilization because of supercooling phenomenon iduced by the smallness of dispersed PCM particles. The main objective of the present study is to investigate the supercooling characteristics of PCM particles inside PCE. The supercooling characteristics were evaluated by determining the freezing ratio of PCM particles inside a PCE which was cooled under various conditions. As a result, it was revealed that the frozen ratio of PCM particles increased with increasing content rate of PCM. Furthermore, it was found that the cooling time, supercooling degree and mean particle diameter of particles affect the ratio too.
DOI: 10.18462/iir.tptpr.2017.0058
title: Heat transfer performance of a circuit cooling heat sink with FC72 flow boiling.

description: An experimental study on a heat sink flow boiling heat transfer was performed to investigate the cooling performance of the heat sink which was designed to cool down electronic components such as central or graphic processing units. An experimental apparatus with a closed loop was made and the working fluid was FC72. The test section consisted of heat sink with fins and heaters which simulated heat dissipation in electronic components. Also, a heat sink without fins was manufactured to investigate the fin effects. The cooling area was 40×50 mm. The test was performed at the range of mass fluxes of 100 and 150 kg×m−2×s−1 and at the saturation pressure about 150 kPa. The heating was controlled at the ranges of 50, 100 and 200 W. The conditions at the test section inlet were regulated from subcooled states to saturation states with high vapor qualities. The measured convection heat transfer coefficients showed that they significantly changed with the variation of vapor quality and heat flux. Form the measured data, it can be concluded that both of nucleate boiling heat transfer mechanism played an important role at the flow boiling in the heat sink. The average heat transfer coefficients in the heat sink were up to 4 times higher at saturation state than those at liquid phase state. The cooling performance of the heat sink with fins was about 100% higher than that of the heat sink without fins at single and liquid to vapor phase change flow conditions.
DOI: 10.18462/iir.tptpr.2017.0076
title: Fuel reaction on Pt-Ru heterogeneous catalysts in operation of direct alcohol solid oxide fuel cells.

description: Methanol and ethanol have attracted attentions as fuels for fuel cells for many advantages including high volumetric energy density (methanol 15.9 MJ/L, ethanol 18.4 MJ/L at STP) compared to one of hydrogen (0.01 MJ/L at STP), chemical stability, and low price. Recently, many interesting attempts to synthesize ethanol from cheap and non-edible bio-resources such as seaweed are reported. This effort is acknowledged very important for economic development of clean or CO2-neutral energy resources alternative to fossil fuels. Use of alcohol in fuel cells is considered as the most efficient for production electricity from liquid fuels due to direct ejection of electrons by electrochemical reactions with minimized emission of waste heat. At low temperature operation of alcohol fuel cells, Pt-Ru has been reported as the best-performing catalysts as Pt is the most effective for the deprotonating process while Ru is the most effective for oxidation of CO that passivates Pt catalysis. In case O2--conducting electrolyte, however, it is possible to use pure alcohol whereas the conventional direct alcohol fuel cells with H+-conducting membranes needs at least 50% of water dilution. At this presentation, we will discuss recent progresses on our studies about direct alcohol solid oxide fuel cells with Pt-Ru heterogeneous anodic catalysts. For synthesis of Pt-Ru alloys, we have used atomic layer deposition technique. We have evaluated I-V performance at 300-500 °C in comparison with Pt-cells. Carbon-products have been also analyzed after cell operation by the X-ray photoelectron spectroscopy.
DOI: 10.18462/iir.tptpr.2017.0080
title: Prediction of the viscosity and thermal conductivity of refrigerant r1233zd (e) including high temperature region.

description: Prediction of thermodynamic and transport properties are indispensable to design and to manufacture the systems with low Global Warming Potential (GWP) fluids. R1233zd(E) is a potential alternate working fluid for Organic Rankine Cycle (ORC) with low-GWP value. Prediction correlations for viscosity and thermal conductivity of this working fluid are reported in this work based Extended Corresponding States (ECS) model. ECS models coupled with density-independent shape factors (empirical shape factors) or density-dependent shape factors (exact shape factors) are individually applied to predict the viscosity and thermal conductivity. Predicted values with the ECS models are compared with experimental data, and the prediction capability of each model is discussed. In addition, viscosity and thermal conductivity shape factors are introduced to improve the prediction capability.
DOI: 10.18462/iir.tptpr.2017.0056
title: Low-GWP halocarbon refrigerants: a review of thermophysical properties.

description: Following the Montreal Protocol (1987), the refrigeration industry has undertaken a process to reduce the negative environmental impacts of working fluids. In a first step, chlorinated compounds (CFCs and HCFCs) were substituted by fluorinated hydrocarbons (HFCs) and natural fluids (e.g., ammonia, carbon dioxide, hydrocarbons) to solve the problem of stratospheric ozone depletion. In a second step following the Kyoto Protocol (1997), a process was begun and still underway, to limit and control the emissions of HFCs that contribute to global warming and climate change. The process of reducing the emissions of high GWP refrigerants is increasing as more and more regulations are being negotiated and implemented (see, e.g., EU Regulation No. 517/214).
Several groups of chemicals have been analyzed in the publicly available literature to identify possible substitutes for high GWP HFCs in HVAC&R and organic Rankine cycle applications. Taking into account various critieria (particularly low toxicity, flammability, and GWP, and high energy efficiency), only a few compounds are suitable for many applications. In particular, in addition to natural fluids, studies have shown that there are a few HFCs and a dozen or so HFOs, i.e. fluorinated olefins characterized by the presence of a C=C double bond in the molecule, that are potentially appropriate for a number of applications. In this paper, a review of the present knowledge of scientifically-determined thermophysical properties of a number of working fluids is presented, with emphasis given to saturation and critical properties, vapour phase PVT data, liquid density, thermal conductivity, viscosity, and surface tension.
DOI: 10.18462/iir.tptpr.2017.0088
title: Evaporation characteristics of a liquid droplet on oxi-nitriding surfaces.

description: The present study aims to experimentally investigate the evaporative heat transfer characteristics of a sessile droplet on the oxi-nitriding surfaces which have been widely used for protection of surface corrosion. However, the thermal resistance effect may be substantial with the increase in coating layer thickness. Thus, the basic heat transfer characteristics of oxi-nitriding surface are examined in the present study, especially for droplet evaporation at different surface temperatures. In our experiment, the successive images were captured by using the CMOS camera during evaporation with considering the variation of wettability and temperature. The surface temperature was set from 20°C to 80°C, below the saturation temperature of seawater. From the observation, it was found that the total evaporation time slightly increased due to the inhibited heat transfer caused by the formation of nitriding layer, showing a maximum difference of 10 % approximately between the bare and oxi-nitriding surfaces. It shows almost equal performance of heat transfer, indicating such as the possibility that the oxi-nitriding surface can be applied to such thermal facilities exposed to the corrosive environments.
DOI: 10.18462/iir.tptpr.2017.0091
title: Single-double effect absorption chiller performance by adjusting the combination of the solution mass flow rates.

description: This paper presents the simulation of a single-double-effect absorption chiller system. This system uses dual heat sources, namely solar energy and natural gas. Using dual heat sources at the same time makes this system more complex than the conventional absorption chiller system. Thus, a proper control strategy is really important to keep the stability of the cooling capacity and also to obtain a higher performance. Hence, the main objective of this study is to maximize coefficient of performance (COP) of the system operation. As known, the COP of this system is affected by the solution mass flow rate of the absorber outlet and the distribution ratio. In the end, the proper combinations of those parameter studies in the condition of 70‒100% cooling capacity are investigated. The simulation results indicate that it is better to use the smaller solution mass flow rate and distribution ratio to reach the maximum COP as long as the combination values are still inside the constraints area.
DOI: 10.18462/iir.tptpr.2017.0093
title: Thermodynamic modelling of humid-air expansion within an R717/R729 cascade refrigeration system for cold store applications.

description: This work focuses on the thermodynamic behaviour of the humid air from a refrigerated space as the working fluid of a cascade refrigeration system with an inverse Brayton cycle as the bottom sub-cycle. The integration of this technology with a conventional NH3 compression cycle for a cold store application overcomes some of their respective drawbacks. The cold heat exchanger is replaced by an inlet port delivering the cold air from the turbine and the heat load due to the air fan is therefore eliminated. The effect of temperature and pressure drop within the turbine brings the fluid to the vapour content saturation and ice formation. In this study, the fluid’s transformation is analyzed as a series of equilibrium states for a realistic estimation of the outlet air conditions. Finally, a first screening of the relevant design parameters for an overall system optimization is presented, showing that the efficiency gap of the Brayton cycle can be reduced in this cascade configuration.
DOI: 10.18462/iir.tptpr.2017.0108
title: Vapor-liquid equilibrium measurements of HFO refrigerant mixtures.

description: Hydro-fluoro-olefins (HFOs) and their mixtures are expected to be the alternatives of hydro-fluorocarbons (HFCs) as low global warming potential (GWP) refrigerants. Vapor-liquid equilibrium (VLE) data of HFO mixtures are highly required for the development of mixture models of equations of state. In this study, a recirculation method is adopted for the VLE measurement of refrigerant mixtures including HFOs such as R1123 and R1234yf. The apparatus mainly consists of an equilibrium cell having optical windows, circulation pumps, and a gas chromatograph. A sample is filled in the equilibrium cell at a VLE condition, and the compositions of vapor and liquid phases sampled through hexagon valves are determined by the gas chromatograph. The apparatus has been modified by improving the position of a pressure transducer to be immersed in a thermostatic bath. Vapor pressure of R1234yf was measured as confirmation of the performance of the apparatus, and the obtained data are compared with an equation of state.
DOI: 10.18462/iir.tptpr.2017.0112
title: High density thermal energy storage adsorption materials.

description: Except from geothermal energy the common renewables are directly dependent on actual weather and even with a complex and strong distribution grid it is problematic to achieve smooth flow of energy from production sites to places of final consumption at all times. To compensate for the non-continuous pattern solutions like backup power sources usually working on fossil fuels has to be considered. But these solutions are only partial and from the future perspective and additional CO2 emissions unacceptable. Adsorption thermal storage systems offer one of the modern satisfactory solutions. These systems offer significantly higher energy density than water, possibility of storing thermal energy for a long period of time without any significant losses and adsorption storage systems also allow storing of negative thermal potential allowing storing of “cold” using the same system. But to exploit all the advantages and prepare this technology for full deployment significant amount of research is still necessary. Basic materials like zeolites or silica gels, which are common adsorption materials, have insufficient energy-adsorption properties and without substantial surface adjustments their application does not bring meaningful improvement compared to common solution in form of water storing. The focus of this work is introduction and comparison of novel adsorption materials and their derivatives which are gradually getting into focus and are perceived as a new drive for further progress in the field of thermal energy storing. Especially mesoporous silica and aluminophosphates are promising materials showing Type IV/V isotherms which seem to be the most advantageous for energy storing.
DOI: 10.5517/ccdc.csd.cc1pcnqf
title: CCDC 1560345: Experimental Crystal Structure Determination

description: Related Article: Ersin Inkaya|2017|CSD Communication|||
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.5517/ccdc.csd.cc1pcp0r
title: CCDC 1560354: Experimental Crystal Structure Determination

description: Related Article: Jan W. Bats, Deniz Akalay, Michael W. Goebel|2017|CSD Communication|||
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.5525/gla.researchdata.435
title: Enhancement of the lithium ion conductivity of Ta-doped Li7La3Zr2O12 by incorporation of calcium

description: These data are contained in the published Dalton Transactions article. The dataset contains all relevant structural information, original images and conductivity data contained within that paper.
DOI: 10.14457/sut.res.2015.72
title: การพัฒนาเชิงคำนวณด้วยเทคนิควิธีการทางปัญญาประดิษฐ์ สำหรับแบบจำลองระบบการชลประทาน
DOI: 10.14457/sut.res.2015.73
title: การศึกษาความหลากหลายของแบคทีเรียที่สามารถสร้างสารปฏิชีวนะได้ จากตัวอย่างดินบริเวณมหาวิทยาลัยเทคโนโลยีสุรนารี จ.นครราชสีมา ภายใต้โครงการอนุรักษ์พันธุกรรมพืชอันเนื่องมาจากพระราชดาริสมเด็จพระเทพรัตนราชสุดาฯ สยามบรมราชกุมารี-มหาวิทยาลัยเทคโนโลยีสุรนารี (อพ.สธ.-มทส.)
DOI: 10.14457/sut.res.2015.74
title: การศึกษาคุณสมบัติของเชื้อแบคทีเรีย Corynebacterium glutamicum สายพันธุ์ที่เจริญได้ดีที่อุณหภูมิสูง
DOI: 10.14457/sut.res.2015.75
title: การเฝ้าตรวจและควบคุมความปลอดภัยทางพลังงานไฟฟ้าในงานอุตสาหกรรม
DOI: 10.14457/su.res.2016.23
title: การสำรวจความถูกต้องในการใช้ไวยากรณ์ภาษาอังกฤษของนักศึกษาชั้นปีที่ 1 คณะเทคโนโลยีสารสนเทศและการสื่อสาร มหาวิทยาลัยศิลปากร โดยใช้แบบทดสอบการแปลและการล่าม
DOI: 10.14457/su.res.2016.24
title: การพัฒนาความสามารถด้านการคิดสร้างสรรค์ของนักศึกษา สาขาวิชาการศึกษาปฐมวัยโดยใช้กระบวนการจัดการเรียนรู้แบบกำกับตนเอง
DOI: 10.14457/msu.res.2006.1
title: การศึกษาน้ำส้มควันไม้ยูคาลิปตัส สำหรับใช้เป็นสารช่วยให้ยางจับตัว และสารยับยั้งการเกิดเชื้อรา ในการผลิตยางแผ่น /
DOI: 10.14457/tu.res.2006.21
title: การศึกษาทัศนคติและพฤติกรรมของลูกค้าธนาคาร ต่อการใช้อุปกรณ์เสริมความปลอดภัยสูงสุดสำหรับธุรกรรมออนไลน์ ศึกษาเฉพาะกรณี ธนาคารฮ่องกงและเซี่ยงไฮ้แบงกิ้งคอร์ปอเรชั่น จำกัด สาขาประเทศไทย /
DOI: 10.14457/tu.res.2006.22
title: การศึกษาทัศนคติและพฤติกรรมครอบครัว ของผู้ตกเป็นเหยื่อและกลุ่มเสียง ที่มีผลให้เกิดการค้ามนุษย์ โดยเฉพาะกรณีการค้าหญิงและเด็ก /
DOI: 10.14457/tu.res.2006.23
title: การศึกษาประเด็นทางกฎหมายเกี่ยวกับการจัดการข้อมูลส่วนบุคคลจากเทคโนโลยี RFID /
DOI: 10.17045/sthlmuni.5173477
title: A map of agricultural systems in Africa by 1800

description: Illustrations, maps and GIS-files of the following articleWidgren Mats:  Agriculture in sub-Saharan Africa by 1800: a map and a gazetteer. In Mercuri, A.M., D'Andrea, A.C., Fornaciari, R., Höhn, A. (eds.): Plants and People in the African Past - Progress in African Archaeobotany (in press), SPRINGER The GIS-files can be opened with GIS programmes such as QGIS (open source) or ArcGIS. Note that they have to overlayered with coastlines (and lakes, depending on scale).If you use the data: please refer to the article.AbstractRecent global
historical cropland modelling grossly underestimates the pre-colonial
development of agriculture in the Americas and many parts of sub-Saharan
Africa. Such models are usually developed from backcasting from recent land
cover combined with environmentally deterministic algorithms. Historical
geographers have been slow in responding to this new demand for a global
synthesis. Here a a
preliminary map of African agricultural systems by 1800 AD is presented. It
forms part of the project Mapping Global Agriculture and is based on the
existing historical literature, observations by early travellers, archaeology
and archaeobotany. Its preliminary nature must be emphasized.
DOI: 10.5517/ccdc.csd.cc100102
title: CCDC 923552: Experimental Crystal Structure Determination

description: Related Article: Srinivas Anga, Tigmansu Pal, Tarun K. Panda|2014|JoMCCT|5|35|
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.5517/ccdc.csd.cc100113
title: CCDC 923553: Experimental Crystal Structure Determination

description: Related Article: Srinivas Anga, Tigmansu Pal, Tarun K. Panda|2014|JoMCCT|5|35|
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.14457/buu.res.2014.51
title: การโคลนและสมบัติของยีนไลเปสจาก Bacillus sp. ที่ผลิตเอนไซมไลเปสประสิทธิภาพสูง
DOI: 10.14457/psru.res.2006.3
title: การศึกษาปัจจัยที่มีผลต่อการผลิตสารสีแดงบนปลายข้าวเจ้าของ Monascus purpureus TISTR 3090 เพื่อนำไปสู่การผลิตในระดับการค้า /
DOI: 10.14457/ssru.res.2006.3
title: การศึกษาปัจจัยที่มีอิทธิพลต่อการส่งออกของผู้ประกอบการวิสาหกิจขนากกลางและขนาดย่อมในเขตกรุงเทพมหานคร
DOI: 10.14457/swu.res.2006.29
title: การศึกษาน้ำเคลือบผลึก เพื่อใช้กับประติมากรรมเซรามิกส์ /
DOI: 10.14457/tu.the.2006.132
title: การศึกษาทัศนะของผู้สูงอายุ ต่อการเป็นผู้สูงอายุที่ยังประโยชน์ : กรณีศึกษาชมรมผู้สูงอายุ โรงพยาบาลสังกัดกรุงเทพมหานคร /
DOI: 10.14457/tu.the.2006.133
title: การศึกษาบทบาทหน้าที่และความรับผิดชอบต่อสังคมของปาปารัซซี่ในประเทศไทย /
DOI: 10.14458/dpu.res.2006.33
title: การศึกษาปัจจัยที่กำหนดรายได้ของนักจัดรายการวิทยุ /
DOI: 10.14458/krirk.the.2006.52
title: การศึกษาบทบาทและปัญหาของธุรกิจหลักทรัพย์ในประเทศไทย /