cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.18462/iir.icr.2015.0250
title: Comparison between conventional and local computer room air-conditioning systems in data center by CFD.

description: The reduction of energy consumption in data centers is crucial because, recently, the energy consumption of heating, ventilating, and air-conditioning (HVAC) systems has increased owing to huge amounts of data being processed by high-density information technology (IT) equipment. In general, the amount of heat generated by servers and cooling capacity of computer room air conditioning (CRAC) is equal. Meanwhile, the air flow rate of server is higher than that of CRAC. Under these conditions, the high-temperature air, such as the outlet air from the servers may be recirculated to the inlet of the server without being fully captured by the inlet of CRAC. Thus, the energy consumption of CRAC would become high. The advent of cloud service and virtualization technology has changed the operating conditions of IT equipment rapidly. Therefore, it is important to precisely control CRAC systems and servers based on factors such as air flow rate of CRAC, processing location, and server conditions. In this study, the capture efficiency of CRAC (n-index) is defined as the ratio of air volume of server to that of CRAC. Models for estimating indoor air flow were developed based on the thermal equilibrium in data center. Two types of CRAC were assumed, namely, conventional CRAC and local CRAC. Case studies on several heat load and air flow rate of server were examined using CFD to estimate the optimal air flow rate of CRAC based on the n-index of CRAC and allowable temperature of server. Furthermore, the value n of CRAC was investigated based on several processing locations and server conditions.
DOI: 10.18462/iir.icr.2015.0252
title: Diesel engine heat pump performance analysis for a domestic retrofit application.

description: An engine driven heat pump (ENHP) uses an engine rather than electric motor and heat is recovered from engine coolant and exhaust gas. ENHP arrangement could have great potential where gas/electricity network are weak or not in existing. The aim of this work is to find the suitability of Diesel engine heat pump (DEHP) for domestic application comparing with the conventional technologies such as gas/oil boiler and electric heat pump (EHP). DEHP system was tested to provide high flow temperature as a retrofit technology to replace existing gas boiler at four-evaporator water inlet temperature and three engine speeds. Primary energy ratio (PER) and CO2 saving potential have been compared. Test results showed that DEHP system has 39-65% higher heat output and 26-62% higher PER compared to EHP. Heat recovery share in total heat output varies from 28-39%. DEHP system annual performance compared with conventional system which showed that DEHP system has potential of 35-65% primary energy savings, 23-42% CO2 emission saving and 26-42% annual fuel-cost savings compared to oil boiler with possible use of bio fuel with high retrofit potential in the UK.
DOI: 10.5255/ukda-sn-8052-3
title: Health Survey Northern Ireland, 2013-2014
DOI: 10.5281/zenodo.159121
title: The London Lives Petitions Project, V2.0

description: This update adds data about identifiable petitioners, derived from London Lives name tagging, and slightly improves tags for churchwardens' (parish) petitions.
DOI: 10.18462/iir.icr.2015.0247
title: Towards "numerical experimentation": the development of a full scale CFD model of a roof-top air conditioning evaporator to predict the two phase conjugate heat and mass transfer.

description: Recently, Moukalled et al. (2011) conducted an extensive CFD based numerical study for a 10 ton roof-top AC packaged unit to investigate the hydrodynamic and thermal fields on the air flow side separately and considering the condensation of water vapor at the evaporator coil surface. This step was considered a recent work and was not adopted by previous researchers. This paper extends the previous work of Moukalled et al. (2011) by considering only the evaporator compartment and simultaneously integrating the refrigerant cycle with the air flow; thus, the evaporator coil temperature and heat fluxes are obtained with the solution prediction. For this purpose, a full scale CFD model was developed to predict the multi-phase conjugate heat and mass transfer. Exact modeling of the evaporator accessories (blower, pulley and motor) were also considered; thus eliminating the use of drag/artificial models. A conformal mesh was generated at the common interface regions separating fluid and solid zones to account for the continuity of heat fluxes at these interfaces. A total of 37 million control volumes were generated to model the whole evaporator compartment. The mixture model with multi-species transport was adopted to account for the condensation (coil surface) and evaporation (refrigerant circuits) occurring phenomena. The realizable 𝑘−𝜀 model was implemented to model high velocity fluctuations and recirculation zones. High turbulence regions were predicted at different locations in the evaporator compartment. The base case model was simulated on a cluster of 64 CPUs. Predictions were then compared with available experimental data for validation purposes. A good confirmation was achieved. The current study targets air conditioning manufacturers through giving them a great opportunity towards “numerical experimentation” to get the facts before manufacturing.
DOI: 10.18462/iir.icr.2015.0248
title: Status and recent development of the nitrogen cryogenic system for the NICA accelerator complex at JINR.

description: The new NICA (Nuclotron-based Ion Collider fAcility) accelerator complex is scheduled to be put into operation in 2019 at JINR in Dubna. This facility comprising the existing Nuclotron together with two newly created superconducting accelerators – booster and collider – will require additional refrigeration capacity at 4.5 K and 77 K. The helium cryogenic system of the NICA complex will be created as a result of the modernization of the existing equipment for cryogenic supply of the Nuclotron, but the liquid nitrogen plant will be completely new. It will be based on a 1300 kg/h nitrogen liquefier and two 500 kg/h re-condensers of nitrogen vapor. This report describes the schematic diagram of the system of liquid nitrogen that will be used for shield refrigerating at 77 K and at the first stage of cooling down three accelerator rings with the total length of about 1 km and the “cold” mass of 290 tons. We demonstrate the status and recent development of the nitrogen cryogenic system: location, basic parameters and design of major components and discuss their phased commissioning.
DOI: 10.18462/iir.icr.2015.0246
title: Numerical model for water vapour condensation on hydrophilic coating enhanced fin surface under dehumidifying condition.

description: Hydrophilic coating enhanced fin-tube heat exchangers are widely used in air conditioning and refrigeration systems, and are usually operated under dehumidifying conditions, in which the water condensates as films and retains on the fin surfaces. A numerical model for predicting the water vapour condensation on hydrophilic coating enhanced fin was developed. In the model, the mass transfer rates during film formation and the contact angles of the film were introduced into the control equations as source terms; the mass transfer rates were predicted based on the species conservation on the fin and condensate film surfaces. The experimental validation results show that, the deviations of heat transfer and pressure drop are both less than 20%.
DOI: 10.18462/iir.icr.2015.0516
title: Optimization of adsorption isotherm taxonomy for open-cycle desiccant air-conditioning applications.

description: Water vapor adsorption isotherm taxonomy of silica-gel based type-linear (fictitious), and four adsorbents enabling type-I, II, III, and V isotherms by means of International Union of Pure and Applied Chemistry (IUPAC) classification, are studied for desiccant air-conditioning (AC) applications. Ideal temperature and humidity zones for various AC applications are drawn on psychometric charts. Published adsorption data for studied adsorbents are fitted with the appropriate adsorption models. Ideal desiccant AC cycle is evaluated for AC applications and steady-state cycled moisture is estimated by means of adsorption isobars. Type-linear adsorption isotherm gives the maximum steady-state dehumidification performance for AC in industrial processes of matches manufacturing/drying/storage, rubber dipped goods storage, and photo studio drying room. However, adsorbents enabling type-V isotherm are found the optimum adsorbents for tobacco stemming/stripping/softening and optical lenses grinding. For industrial process–dipped surgical articles; adsorbents enabling type-I, type-II, and type-linear isotherms are resulted the optimum adsorbents under conditions of low (&lt; 68°C), medium (68°C-87°C), and high (&gt; 87°C) temperature regeneration, respectively.
DOI: 10.14457/tu.res.2007.17
title: ความสัมพันธ์ระหว่างความวิตกกังวลในการใช้คอมพิวเตอร์ การรับรู้ความสามารถของตนเองและทัศนคติต่อการใช้บริการอิเล็กทรอนิกส์ของพนักงาน :
DOI: 10.14457/tu.res.2007.18
title: ข้าวธัญพืช "ข้าวทิพย์"
DOI: 10.14457/tu.res.2008.59
title: การศึกษาเปรียบเทียบการรับรู้ระหว่างผู้บังคับบัญชาและผู้ใต้บังคับบัญชาเรื่องความมั่นใจและการชอบพฤติกรรมการประจบประแจงของผู้บังคับบัญชา :
DOI: 10.14457/tu.res.2008.60
title: เชาวน์อารมณ์ ความสามารถในการเผชิญและฟันฝ่าอุปสรรคและความสำเร็จในวิชาชีพของพยาบาลประจำการ :
DOI: 10.14457/tu.res.2008.61
title: ปัจจัยชี้วัดความสำเร็จต่อการปรับเปลี่ยนรายการภัยรายวันเป็นรายการ 9 ร่วมใจ คนไทยไม่ทิ้งกันทางสถานีโทรทัศน์โมเดิร์นไนน์
DOI: 10.18462/iir.icr.2015.0515
title: Experimental investigations of propane minichannel condenser.

description: Paper deals with experimental investigations of heat transfer and pressure drop in mini-channel heat exchanger. The average heat transfer coefficient as well as pressure drop for the case of operation of the tested heat exchanger as a condenser of superheated propane vapour and subcooled liquid at the outlet. The experiments were carried out for various mass velocities of condensing propane.
DOI: 10.14457/tu.res.2007.19
title: บุคลิกภาพแบบ MBTI เชาวน์อารมณ์ ที่มีต่อคุณภาพชีวิตในการทำงานของพนักงานต้อนรับภาคพื้นดิน :
DOI: 10.14457/tu.res.2008.62
title: ปัจจัยที่ส่งผลกระทบต่อการลงทุนโดยตรงจากต่างประเทศของประเทศไทย
DOI: 10.14457/tu.res.2008.63
title: การศึกษาพฤติกรรมการเปิดรับข่าวสารและปัจจัยที่มีผลต่อการตัดสินใจเรียนภาษาญี่ปุ่นที่โรงเรียนสอนภาษาญี่ปุ่นไมนิจิ
DOI: 10.14457/tu.res.2008.64
title: ภาพลักษณ์ของโรงพยาบาลธรรมศาสตร์เฉลิมพระเกียรติในการรับรู้ของชุมชนคลองหลวง
DOI: 10.14457/tu.res.2008.65
title: ความสัมพันธ์ระหว่างค่านิยมในการทำงาน บุคลิกภาพแบบแมคคีอาเวลเลียนและจริยธรรมในการทำงานของผู้สอบบัญชี :
DOI: 10.14457/tu.res.2008.66
title: ร้านอาหารว่างเพื่อสุขภาพ Healthy roomy
DOI: 10.14457/tu.res.2008.68
title: ความรู้ ทัศนคติ แนวโน้มพฤติกรรมการเข้าร่วมโครงการหยุดเพิ่มความร้อนใส่กรุงเทพฯ ของประชาชนในเขตกรุงเทพมหานคร
DOI: 10.14457/tu.res.2007.20
title: การศึกษาความสัมพันธ์ของลักษณะนิสัย 7 ประการของบุคคลที่มีประสิทธิผลในการทำงานตามแนวคิดของโควี่ ภาวะผู้นำการเปลี่ยนแปลงต่อรูปแบบความคิดสร้างสรรค์ตามทฤษฎีของไมเคิล เจ เคอร์ตันของพยาบาลประจำการโรงพยาบาลรามาธิบดี
DOI: 10.14457/tu.res.2008.67
title: ความอยู่รอดของหนังสือพิมพ์เศรษฐกิจในปัจจุบัน
DOI: 10.14457/tu.res.2008.69
title: ความสัมพันธ์ระหว่างภาวะผู้นำแบบเปลี่ยนแปลงตามการรับรู้ของผู้ตาม การเสริมสร้างพลังอำนาจในงานเชิงจิตวิทยาและความผูกพันในงาน : กรณีศึกษาองค์การที่ไม่มุ่งหวังผลกำไรด้านมูลนิธิด้านสิ่งแวดล้อมและการอนุรักษ์ทรัพยากรธรรมชาติ ในจังหวัดกรุงเทพมหานคร
DOI: 10.14457/tu.res.2008.70
title: บุคลิกอารมณ์ตามอาชีพ บุคลิกภาพตามทฤษฎีเชาวน์จิตอัจฉริยะ ความพึงพอใจในงานและสภาพแวดล้อมในการทำงานของพนักงานสายงานด้านการตลาดในสถาบันการเงินสังกัดกระทรวงการคลังแห่งหนึ่งในเขตกรุงเทพมหานคร
DOI: 10.14457/tu.res.2008.71
title: พฤติกรรมและความคาดหวังการใช้บริการดาวน์โหลดบนว๊อพ (WAP) ของผู้ใช้โทรศัพท์เคลื่อนที่
DOI: 10.14457/tu.res.2008.72
title: การรับรู้และความคาดหวังของนักหนังสือพิมพ์ด้านเศรษฐกิจต่อการประชาสัมพันธ์ขององค์กรที่ปรึกษาฯ ระดับ "บิ๊กโฟร์" ในประเทศไทย
DOI: 10.14457/tu.res.2008.73
title: การบริหารงานประชาสัมพันธ์ของสำนักโฆษก สำนักเลขาธิการนายกรัฐมนตรี
DOI: 10.14457/tu.res.2008.74
title: ปัจจัยที่ก่อให้เกิดความเครียดในการทำงาน ความสามารถในการเผชิญและฟันฝ่าอุปสรรค และความเครียดทั่วไปที่ส่งผลต่อผลการปฏิบัติงานของพนักงานรัฐวิสาหกิจ :
DOI: 10.14457/tu.res.2008.75
title: การสำรวจพฤติกรรมการเปิดรับและทัศนคติของประชาชนในเขตกรุงเทพมหานครที่มีต่อนิตยสารประเภทกอสซิปบันเทิงในประเด็นบทบาทหน้าที่และความรับผิดชอบต่อสังคมของสื่อมวลชนไทย
DOI: 10.6073/pasta/a2d6c247a7e23c9838d53af41ae7ee9b
title: Aggregate mesquite litter mass following soil-litter mixing and decomposition in a semi-arid grassland from 2010-2012
DOI: 10.14457/tu.res.2008.76
title: ความสัมพันธ์ระหว่างความสามารถในการเผชิญและฟันฝ่าอุปสรรค ความเหนื่อยหน่ายในงาน และการรับรู้ความสามารถของตนเอง :
DOI: 10.14457/tu.the.2008.561
title: ความสัมพันธ์ระหว่างคุณภาพชีวิตในการทำงาน ความสามารถในการเผชิญและฟันฝ่าอุปสรรคและจริยธรรมในการทำงานของเจ้าหน้าที่ตำรวจในสถานีตำรวจสังกัดกองบัญชาการตำรวจนครบาล
DOI: 10.14457/tu.the.2008.562
title: รูปแบบความคิดสร้างสรรค์ ภูมิความรู้ความชำนาญ กลยุทธ์ในการดำเนินธุรกิจและความสำเร็จในการประกอบธุรกิจของผู้ประกอบการสินค้าหนึ่งตำบลหนึ่งผลิตภัณฑ์ (3-5 ดาว) ประเภทสมุนไพรที่ไม่ใช่อาหาร
DOI: 10.14457/tu.the.2008.563
title: ความคิดเห็นของประชาชนในเขตกรุงเทพมหานครที่มีต่อพระราชบัญญัติควบคุมเครื่องดื่มแอลกอฮอล์ พ.ศ. 2551
DOI: 10.18462/iir.icr.2015.0514
title: Optimal design of a thermoacoustic system comprising of a standing-wave engine driving a travelling-wave cooler.

description: This paper presents the design and optimisation of a coupled thermoacoustic system comprising of a standing wave thermoacoustic engine and a coaxial travelling wave thermoacoustic cooler in a linear configuration. The overall aim is to propose an economical design of a prototype system which could be used by people living in remote rural areas of developing countries with no access to the electrical grid. The cooler coaxial configuration provides a feedback inertance and compliance to create the required travelling-wave phasing. Compressed air at 10 bar is used as the working fluid. The operating frequency is around 50 Hz. The geometric parameters of both engine and cooler, affecting the overall efficiency of cooling, have been investigated to evaluate the optimal configuration of the system. The most sensitive parameters are the cross sectional areas of the engine and cooler and the hydraulic radii of stack and regenerator.
DOI: 10.18462/iir.icr.2015.0513
title: A new formation kinetics study method of TBPB and CO2 hydrates based on DTA.

description: Clathrate hydrates are crystalline compounds which can be used as phase change material (PCM) for thermal energy storage. Moreover hydrate slurries could be a good solution for industrial issues of cold distribution at various temperature levels. In fact, hydrates formed from tetra-n-butylphosphonium bromide (TBPB) + water mixtures have equilibrium conditions required for air-conditioning applications, with melting temperature at 281 K at atmospheric pressure. Moreover, their flowing conditions are also suitable. Hydrates are also able to trap molecules of carbon dioxide resulting in mixed hydrates when combined with TBPB salt. The present work investigates kinetics studies of CO2 hydrates and TBPB hydrates for various conditions of salt concentrations (15 %wt, 25 %wt and 37 %wt) and for a range of subcooling temperature between 3 and 8 K. A calorimetric method is used to determine the rate of hydrate formation thanks to a Differential Thermal Analysis (DTA). In a first time, the calorimetry method has been validated by evaluating the kinetic formation rate of CO2 hydrates then it was applied to TBPB hydrates. The results showed that the kinetic formation rate is faster when the driving force increases for each initial salt concentration. Finally, two empirical kinetics models have been tested for describing the experimental result, Avrami-Erofeev and Nakamura, and a better agreement is observed with Nakamura model.
DOI: 10.18462/iir.icr.2015.0244
title: Influence of ambient conditions, refrigerant charge and condenser fan speed on thermal performance of an air source heat pump for drying fruits.

description: Experimental optimization of an air source heat pump for drying fruits was conducted by varying the refrigerant charge, condenser fan speed and the ambient conditions to obtain the optimum operating parameters of the heat pump and the dryer as a single integrated unit. The results showed that, the coefficient of performance (COP) of the overall system and the cycle increased with the increase of condenser fan speed, ambient temperature and refrigerant charge. However, at high refrigerant charge and speed of the condenser fan, the COP of the overall system decreased because of the decreased heating capacity possible due to accumulation of refrigerant in the condenser and increased fan power consumption, respectively. For the developed system, the optimum refrigerant charge was observed to be 1650 grams and 840 rpm of condenser fan speed (60% of the full speed) and the appropriate operating ambient temperature of 20°C. At this point, the COP of the overall system and the heat pump cycle were 3.75 and 5.20, respectively.
DOI: 10.18462/iir.icr.2015.0512
title: Numerical modelling and experimental investigations of low-temperature driven ejection refrigeration system.

description: The rapid growth of various applications of the ejection refrigeration systems could be observed recently. Because of possibility of the application of solar or waste energy to supply the motive energy they can be thought as a real alternative to compression devices in air-conditioning technologies. Ejection system can effectively compete with absorption system under temperature of the motive heat source lower than 80°C. The paper deals with CFD numerical simulation along with experimental investigations carried out on a specially constructed prototype/stand for the case of isobutane as a working fluid under motive vapour temperature below 75°C. The numerical and experimental results of entrainment ratio were compared. A good accuracy between numerical and experimental results was observed. The divergent of the results are lower than 20% for tested series. The exemplary pressure and velocity field were presented. Also it was shown that predicted by numerical simulation pressure distribution at ejector wall fits well with experimental pressure distribution.
DOI: 10.17632/9xdthhmm75.2
title: Additional Galleries of C. elegans Physiology

description: Raw image file data for each specific measurement and time point is within individual .zip files. An overview file, PhysiologyGalleries.pdf, with additional galleries of C. elegans physiological measurements is included for ease of viewing. Compliance with Mendeley Data Policies: This is not a section of a previously published paper. It contains annotated and raw image data related to a paper in Cell Systems, but is distinct from and is not contained in that publication. The image data found here has not been previously published elsewhere.
DOI: 10.18462/iir.icr.2015.0509
title: Numerical simulations of heat and mass transfer in a Chinese cabbage cold store.

description: The numerical model and results of calculations of heat and mass transfer in a Chinese cabbage cold storage chamber are presented in the paper. The main feature of the model is the connection between phenomena occurring in the bulk of vegetables and in the heat exchanger of cooling unit accomplished via user defined functions UDF. The model relates cooling capacity to the transpiration and respiration in the bed of cabbage. The thermal non-equilibrium model of heat transfer in porous media was applied both to the bed of vegetables and to the heat exchanger of the cooler. The heat and mass transfer coefficients in the bed of cabbage and in the cooler were treated as field quantities. The results of calculations were applied to the preparations of experimental evaluation of heat and mass transfer in the real cold store.
DOI: 10.18462/iir.icr.2015.0243
title: Optimal temperature differences in the evaporator and condenser of a refrigeration or Organic Rankine Cycle system based on exergoeconomic analysis.

description: An increase in the temperature difference in the evaporator and/or condenser of a refrigeration system or Organic Rankine Cycle (ORC), leads in the first case to the increase in the compressor mechanical work consumption and for the ORC, to a decrease in the mechanical work production, accompanied in both cases by the decrease in the heat transfer surfaces. Larger temperature differences in the evaporator or/and condenser lead to an increase in the operating cost of the system but in the same time by reducing the size of the heat transfer surfaces the investment cost decreases. The challenge between the operating cost and the investment one gives the objective function for optimization. For the refrigeration system the objective function to minimize is the total yearly cost of the plant and for the ORC the objective function to minimize will be the unitary cost of the mechanical work produced.
DOI: 10.18462/iir.icr.2015.0242
title: Industrial heat pump using fluid mixture.

description: High temperature heat pumps are required for industrial usage for energy savings and CO2 emission reduction. A hybrid cycle which uses the principles of absorption and compression was studied. There are two types of absorption/compression hybrid cycles, categorized by their origins. The hybrid cycle studied here is the one developed from the compression cycle, and it has almost the same components as the compression one. Water and glycerol mixture was supposed as a working fluid. The temperature difference between the boiling points of the two fluids is large, so the temperature gradient will be large in the heat exchangers. The systems of the two types were examined in the chart analysis; the system without an internal heat exchanger and the system with an internal heat exchanger. In the usage typical in the conventional compression heat pumps, that the heat is transferred from the low temperature to the high temperature with a certain temperature lift, the system without an internal heat exchanger shows a moderate COP. The system with an internal heat exchanger can realize the large temperature lift with small compression ratio and low working pressure, but the irreversible work at the heat exchanger will be large and the merit superior to the system without an internal heat exchanger will be canceled. This large loss at the internal heat exchanger is caused by the characteristic of the curves of the gas line and the liquid line, resulting in the disagreement of the temperature difference between the inlet and the outlet of the internal heat exchanger. The promising application of the absorption/compression system is for the system in which both the heat source and the heat sink have temperature gradients. One example is the materials heating and products cooling. The second example is a pinch point cancelation. Near the pinch point, both high temperature and low temperature fluids have the temperature gradient and the temperature lift by the heat pump will be relatively small.
DOI: 10.18462/iir.icr.2015.0506
title: Investigations of two-phase injector operating with isobutane.

description: Paper deals with experimental investigation of two-phase vapour-liquid injector as a liquid pump in refrigeration systems. The selected experiment results for the injector are presented for the case of isobutane as working fluid. Experimental data was shown as the operation characteristics of the injector as well as heat transfer coefficient.