cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.18462/iir.pcm.2018.0053
title: Investigations on the stability of metallic cans for PCM macro-encapsulation.

description: The storage of renewable thermal energy is becoming increasingly important. Due to the discrepancy between supply of renewable energies and demand, thermal storage systems are necessary. Macroencapsulated phase change materials (PCM) can be used as a thermal energy storage and provide an opportunity to balance this energy discrepancy. Commercial capsule materials for PCM have either adverse material properties such as low thermal conductivity (plastics) and/or are very expensive. This paper presents initial results of the examination of the suitability of a low-cost metallic packaging material with a wax coating on the outside layer for macro-encapsulation of PCM. Two different capsule geometries were filled with a salt hydrate and subjected to thermal cycling. During the thermal cycling process, the tightness of the capsules was investigated via measurements of the electrical conductivity of the surrounding water. Additionally the thermal performance of the capsules was assessed.
DOI: 10.25502/20180919/1045/bo
title: Cowpea Yield Evaluation Trials - Grootfontein, 1992

description: The Cowpea Breeding Unit develops improved cowpea lines with high grain yield potential and resistance/tolerance to biotic and abiotic stresses and possessing farmers and consumers preferences. Data generated from multi-year evaluation trials carried out on different sets of materials developed within several projects conducted by the cowpea breeding unit are contained in the database.
DOI: 10.5281/zenodo.1402171
title: Giss Modele2 Simulations With Different Land-Surface Conditions

description: Dataset for JGR manuscript #2018JD028874 "<strong>Distinct influences of land-cover and land-management on seasonal climate"</strong>

This is a repository of climate simulations to examine the influence of agricultural expansion and intensification on climate. Climate model simulations are conducted with the ModelE tag modelE_AR5_v2_branch, which is an intermediate version of the GISS ModelE2. This model version is available in the GISS development repository (https://simplex.giss.nasa.gov/cgi-bin/gitweb.cgi?p=modelE.git;a=tag;h=refs/tags/modelE_AR5_v2_branch). All the input files and simulation output are archived here. The simulations are run for 50 years with identical forcings under 3 scenarios and are run in non-interactive, prescribed ocean mode.

Following is a description of the data available here.

1. The folder input_files includes the land-surface schemes used in the simulations, and the crop cover dataset.

2. "PotVeg_VAr" - contains variables from simulations with natural vegetation alone.

3. "CropA_Var_new" - contains variables from simulations with year 2000 crop cover.

4. "CropsIRA_Var_new" - contains variables from simulations with year 2000 crop cover and irrigation rates.

5. "evap_diags" and "low_clouds" - contains evapotranspiration and low-cloud cloudiness from all three simulations.

6. The file VarList - contains a list of variables available from the model and their names.

7. Explanation_of_Diagnostics - contains a description of the variables.

8. referenceRegions.csv - contains the domains of the SREX regions in this study.
DOI: 10.5281/zenodo.1402172
title: Giss Modele2 Simulations With Different Land-Surface Conditions

description: Dataset for JGR manuscript #2018JD028874 "<strong>Distinct influences of land-cover and land-management on seasonal climate"</strong>

This is a repository of climate simulations to examine the influence of agricultural expansion and intensification on climate. Climate model simulations are conducted with the ModelE tag modelE_AR5_v2_branch, which is an intermediate version of the GISS ModelE2. This model version is available in the GISS development repository (https://simplex.giss.nasa.gov/cgi-bin/gitweb.cgi?p=modelE.git;a=tag;h=refs/tags/modelE_AR5_v2_branch). All the input files and simulation output are archived here. The simulations are run for 50 years with identical forcings under 3 scenarios and are run in non-interactive, prescribed ocean mode.

Following is a description of the data available here.

1. The folder input_files includes the land-surface schemes used in the simulations, and the crop cover dataset.

2. "PotVeg_VAr" - contains variables from simulations with natural vegetation alone.

3. "CropA_Var_new" - contains variables from simulations with year 2000 crop cover.

4. "CropsIRA_Var_new" - contains variables from simulations with year 2000 crop cover and irrigation rates.

5. "evap_diags" and "low_clouds" - contains evapotranspiration and low-cloud cloudiness from all three simulations.

6. The file VarList - contains a list of variables available from the model and their names.

7. Explanation_of_Diagnostics - contains a description of the variables.

8. referenceRegions.csv - contains the domains of the SREX regions in this study.
DOI: 10.7910/dvn/00royz/dabdra
title: petitions.xlsx
DOI: 10.7910/dvn/56nglc/kmdrpp
title: petitions.xlsx
DOI: 10.7910/dvn/fwkqfy/4pf366
title: petitions.xlsx
DOI: 10.7910/dvn/jbjsnv/dz6ekd
title: petitions.xlsx
DOI: 10.7910/dvn/l3qaw1/wdygsr
title: petitions.xlsx
DOI: 10.7910/dvn/plowjs/vd89xq
title: petitions.xlsx
DOI: 10.7910/dvn/vreoo/7lqvnw
title: petitions.xlsx
DOI: 10.18462/iir.pcm.2018.0002
title: Modeling and optimal operation of high performance building with integrated phase change materials.

description: Phase change materials (PCMs) have been introduced into building components such as gypsum board or plaster to cover room interior surfaces that interact with the HVAC system, but can also absorb internal heat gains and transmitted solar radiation. Thus, PCMs can play an important role as passive or active heat storage to reduce energy consumption and peak demand for cooling and heating by storing solar and other heat gains. PCMs can also maintain good thermal comfort by reducing room temperature fluctuations while storing and releasing heat gains during a day. To achieve wider adoption of PCMs in buildings, a number of essential key steps are discussed through two examples, including their integration into building energy design and the development of predictive control strategies to optimize their charge/discharge and reduce peak heating demand. First, a concept of active ventilated double facade with photovoltaics and PCM is overviewed, followed by active PCM walls/ceilings with ventilated PCM layers and active charging of the storage; the discharge can be passive or active.
DOI: 10.18462/iir.pcm.2018.0003
title: 25 years working with ice slurry: history, current technologies and future developments.

description: Ice Slurry is an exciting fluid. It is often called a secondary refrigerant or a heat transfer fluid, because it does not evaporate inside the heat exchanger like refrigerants do. But looking at the energy density and the heat transfer characteristics, ice slurry is on eye level with many HFC refrigerants. Ice slurry can be used inside heat exchangers and in direct contact cooling, offering many interesting areas such as fish or produce chilling. In addition, it can be used for pipe cleaning or for pushing (pigging) precious products out of pipes without significant product loss. Ice slurry has evolved from a niche product into a technology applied in many fields. Nonetheless, developing efficient ice slurry production, effective ice slurry storage and reliable ice and additive concentration
measurements as well as crystal growth issues remain challenging tasks for engineers, making ice slurry as interesting as it was 25 years ago.
DOI: 10.18462/iir.pcm.2018.0012
title: Development of PCM based packaging material for thermal buffering.

description: The temperature maintenance plays crucial role in storage and transportation of perishable materials. A new composite material containing PCM (phase change material) absorbed in activated charcoal, PCM-AC is developed for maintenance of constant temperature inside a paper box (as per ASTM standards). The composite is made by absorbing commercially available PCM, OM-21 (melting point, 23oC and latent heat of fusion 130 kJ.kg-1) over activated charcoal. DSC analysis of the composite indicates no variation in melting temperature i.e. 23oC while the latent heat of fusion becomes 56 kJ.kg-1. FTIR data shows no chemical interaction between activated charcoal and OM-21. The composite has been tested successfully to maintain temperature of 400g grapes inside a B-flute type corrugated box for 110 min. The mass of PCM-AC composite used was of 473g and was placed inside a bubble wrap liners along the inner wall of the box. The estimated cost of such box is ~3.0USD per piece. Besides reusability, this packaging solution is believed to fall under sustainable green technology and is expected to be highly economical.
DOI: 10.18462/iir.pcm.2018.0014
title: Energetic effects of flow-through wall elements with phase-change materials for building component activation.

description: The energy efficiency of buildings is important. In order to reduce the energy demand for heating and cooling, a previously proposed flow-through wall element is enhanced with phase-change materials (PCM). By means of numerical modelling and simulation, the energetic effects of the wall element are studied for different cities (i.e., climatic conditions), flow speeds through the wall element, and phase-fraction as well as properties of the phase-change material. Simulations at sufficiently small time steps for an entire year allow to determine the maximum heating and cooling loads, with their respective annual energies by integration. The results revealed that the PCM-enhanced wall element is beneficial for most of the conditions and cities. Especially, the cooling loads can be reduced significantly compared to wall elements without PCM. The annual primary energy consumption, comprising heating, cooling and operation of the wall element has a minimum at flow speeds of approx. 1 m/s.
DOI: 10.18462/iir.pcm.2018.0030
title: An experimental investigation on performance evaluation of CO2 hydrate formation for district cooling application.

description: Based on growing concerns about the global warming, technologies regarding Carbon Capture, Utilization and Storage (CCUS) have been spotlighted. CO2 gas can be captured by CO2 hydrate which has a relatively higher dissociation enthalpy (500 kJ/kg) than that of ice (333 kJ/kg). Because of the higher dissociation enthalpy, the efficiency of heat transportation can be increased when CO2 hydrate is utilized for district cooling application. In this study, formation and dissociation processes in lab-scale CO2 hydrate refrigeration system with tetrahydrofuran(THF) based absorbent were experimented. The effects of the formation temperature and the pressure during formation process on cooling coefficient of performance (COP) and heat transfer rate at each heat exchangers are investigated. From this analysis, the hydrate frost in the heat exchanger was observed, and COP changes were measured according to the change of THF concentration and hydrate production pressure.
DOI: 10.18462/iir.pcm.2018.0034
title: Numerical simulation of the charging process in a horizontal shell-and-tube phase change material storage.

description: Energy storage systems decrease the energy consumption and can help to reduce environmental impacts. Phase Change Material (PCM) is an efficient method in thermal energy storage with high thermal density. In the present study, the charging process of a horizontal shell-and-tube PCM storage system is evaluated by 2D simulation. In order to investigate the effect of the shell configuration on the charging process, seven different geometries are considered. Results indicate that due to the effect of the buoyancy force, the temperature in the upper region of the PCM rises and the melting is fast. The lower region is barely melted in all cases. Results exhibit that the charging rate for the horizontal rectangular shell is the highest and the PCM is completely melted after 2006.1 seconds. The melting time of PCM in the best model is improved by 40.31% compared to the cylinder case. As a result, the geometry of the PCM storage shell has a nonnegligible effect on the charging process.
DOI: 10.18462/iir.pcm.2018.0048
title: Characterization of an n-Octadecane PCS in a 0.5 m³ storage tank test facility.

description: Due to the increasing share of regenerative energy, research into thermal storage systems is becoming increasingly important. Phase change slurries (PCS) can be used as a thermal storage system and consist of a phase change material (PCM) within a carrier fluid. This enables the pumping of the PCS in a hydraulic system independently of the state of matter of the PCM. In this contribution a PCS with 35 wt.% Parafol 18-97 (Sasol Germany, n-octadecane, Tm = 27.3 °C) as a PCM was characterized under realistic thermomechanical stress in a storage tank test facility at a scale of 0.5 m³. At a temperature difference of 7 K (20 °C – 27 °C) it was possible to store 2.57 times more heat in the PCS in comparison to water. Furthermore, the influence of PCS on the energy demand of a pump was investigated.
DOI: 10.5281/zenodo.1421415
title: Dwd European Weather

description: opendata.dwd.de - OpenData by Deutscher Wetter Dienst

Conditions: https://www.dwd.de/EN/service/copyright/copyright_node.html

dates and times are UTC.
DOI: 10.7910/dvn/5luw1u/o0j5eb
title: petitions.xlsx
DOI: 10.7910/dvn/9efxwz/49wydp
title: petitions.xlsx
DOI: 10.7910/dvn/f4js4u/h2czrl
title: petitions.xlsx
DOI: 10.7910/dvn/mjhsxi/24swcj
title: petitions.xlsx
DOI: 10.7910/dvn/vbbegm/fip4g9
title: petitions.xlsx
DOI: 10.18462/iir.pcm.2018.0018
title: Ice slurry production control system for supercooled brine in a nylon helical coiled heat exchanger.

description: The formation of ice slurries from supercooled NaCl brine was studied, utilising a vertical helical coiled heat exchanger, of nylon piping. Slurry production occurred in a precise flow rate and bath temperature range. Pressure (P) and temperature measurements were implemented in a flow rate control system aimed to maintain maximum ice slurry production. A safety check set the pump flow rate to maximum if pressure or dP/dt readings increases beyond set maximum values. Ice fraction and production rate measurements were taken as a performance indicator. Evaluation of the initial results showed slurry ice fractions above 10%, but with growing unstable pressure oscillations and a decrease in ice fraction. An improved proportional based control system was implemented without the safety check. Pressure oscillation amplitudes were reduced, ice fractions and production rates were preserved or increased during the experiments.
DOI: 10.18462/iir.pcm.2018.0023
title: Dispersion and flow characteristics of hardshell microcapsules with phase change materials.

description: To investigate the sedimentation and flow characteristics of hard-shell microcapsule/water slurries, the apparent viscosity, apparent dispersion volume fractions, and friction characteristics were measured. The hard-shell microcapsule contains disodium hydrogen phosphate hydrate as a phase change material. Poly (vinyl alcohol) (PVA) with a concentration from 0 to 2,000 ppm was applied as a dispersant. A dragreducing surfactant system was also added to the slurries to improve the flow characteristics of the slurries. As a drag-reducing surfactant, oleylbishydroxyethylmethylammonium chloride was added at 2,000 ppm with a counter-ion of sodium salicylate. As a trial, the concentration of microcapsules was set at a low value at 1 or 2 wt%. From the results, severe adsorption of surfactants onto the hard-shell microcapsules was found. Then, no drag reduction or sedimentation prevention occurred in the cases without PVA. However, there is a weak sedimentation prevention effect and effective drag reduction effect when PVA is present. Thus, it is concluded that the desorption of surfactants from the microcapsules occurs and forms a synergetic structure with the PVA.
DOI: 10.18462/iir.pcm.2018.0035
title: Simulation of the phase change process of paraffin waxes with and without Al foams for advanced hybrid thermal energy storages.

description: The use of the latent heat absorption phenomenon related to the melting process of a suitable Phase Change Material (PCM) can be considered an effective way to improve the energy storage capabilities in many applications. In order to simulate the possible advantages of hybrid water thermal energy storages, advanced simulation tools are strongly needed. Nevertheless, in many cases, the lack of accurate experimental measurements limits the reliability of the simulation results. In this paper, a Trnsys Type developed to simulate the loading (melting) and unloading (solidification) processes of paraffin waxes for hybrid thermal energy storages is presented. It permits to monitor the phase change processes with and without the use of metal foams to enhance the poor heat transfer properties of the paraffin waxes. The model was validated against some data collected during experimental tests on a paraffin wax having melting temperature of 40 °C in a hybrid water thermal storage unit.
DOI: 10.18462/iir.pcm.2018.0037
title: A study into optimal design of an air-PCM thermal energy storage unit with CSM panels.

description: A latent heat thermal energy storage (LHTES) unit was optimized with the aim to maximize the overall heat transfer rates between the air and the PCM. The LHTES unit was an air-PCM heat exchanger consisting of a given number of CSM panels. The optimization was carried out for heat storage operation. The spacing of the panels and their thickness were considered in the study. The computer model of the unit was developed and implemented in MATLAB. A genetic algorithm was coupled with the thermal model of the unit in MATLAB to form an optimization model. The results of the study show the influence of the design and operation parameters on the overall performance of the LHTES unit.
DOI: 10.18462/iir.pcm.2018.0040
title: Impact of thermal energy storage on the sizing and energy consumption of a district cooling system.

description: Thermal energy storage (TES) has been recognized to be a good way to ensure energy security, efficiency and environmental quality. Nevertheless many materials are available with variable thermodynamic properties. The aim of this work is to compare the energy consumption and sizing of a district cooling system with TES device in function of storage materials (water, CO2 hydrate slurry and TBPB hydrate slurry). A system modelling approach was developed by assembling component models: chiller, stirred tank reactor,
circulation loop and place of use (house equipped with heat exchanger). The evolution of room and storage temperature, chiller and pumping energy consumption for different materials and various operating conditions is analyzed. Results show that the use of PCM (hydrates) allows an under sizing of the system, limiting the volume of the storage device and improving the system efficiency compared to system with water.
DOI: 10.18462/iir.pcm.2018.0041
title: PCM in a fridge / freezer combination: a challenging PCM application.

description: In Germany, there are 40 million household refrigerators consuming roughly 24 GWh per year. The project DiTES4Grid (Distributed intelligent Thermal Energy Storage for Grid) aims at integrating thermal energy storage based on a phase change material (PCM) in refrigerators for demand side management. A technical and economic feasibility study showed that in contrast to electrical energy storage a small cost benefit can be achieved if moderately variable electricity prices are assumed. Measurements on commercial PCM consisting of salt solutions showed satisfying properties regarding melting temperature and enthalpy of fusion, the use of these PCM turns out to be highly challenging in a thermal storage device. While corrosion was no problem, every PCM separated on cycling, so that different thickening agents were used resulting in considerable bubble formation. Therefore, various experimental setups were built to get better optical insights in the processes taking place on repeated freeze/thaw cycles.
DOI: 10.18462/iir.pcm.2018.0044
title: Phase-change-material nanoemulsions for energy transport and storage.

description: This paper presents our current understanding of phase change emulsions (PCEs) for storage and transport of thermal energy focusing on their physicochemical properties as well as flow and heat transfer characteristics. Previous investigations on PCEs such as nanoemulsions of phase change materials for refrigeration and air conditioning applications are reviewed in detail, including our own work on the method of PCE preparation, mean particle size, rheological properties and phase change and heat transfer characteristics. Based on a careful review of past studies, future research needs will be identified and methods of investigation will be recommended using advanced experimental techniques such as an X-ray imaging system for investigating the agglomeration and formation of particle clusters as well as solid fraction distributions in heated flow channels, and multi-dimensional NMR for characterizing the molecular compositions and structures of the dispersed phases and their interactions with adsorbed species.
DOI: 10.25502/20180918/1507/bo
title: Cowpea Yield Evaluation Trials - Bastidas, 1987

description: The Cowpea Breeding Unit develops improved cowpea lines with high grain yield potential and resistance/tolerance to biotic and abiotic stresses and possessing farmers and consumers preferences. Data generated from multi-year evaluation trials carried out on different sets of materials developed within several projects conducted by the cowpea breeding unit are contained in the database.
DOI: 10.5281/zenodo.1422819
title: Large Uptake Of Atmospheric Ocs Observed At A Moist Old Growth Forest: Controls And Implications For Carbon Cycle Applications

description: This repository contains all data for the manuscript by Rastogi et al., titled  "<strong>Large uptake of atmospheric OCS observed at a moist old growth forest: Controls and implications for carbon cycle applications</strong>". This manuscript has been accepted for publication in the Journal of Geophysical Research: Biogeosciences
DOI: 10.5281/zenodo.1422820
title: Large Uptake Of Atmospheric Ocs Observed At A Moist Old Growth Forest: Controls And Implications For Carbon Cycle Applications

description: This repository contains all data for the manuscript by Rastogi et al., titled  "<strong>Large uptake of atmospheric OCS observed at a moist old growth forest: Controls and implications for carbon cycle applications</strong>". This manuscript has been accepted for publication in the Journal of Geophysical Research: Biogeosciences
DOI: 10.7910/dvn/as83ma/uxibeu
title: petitions.xlsx
DOI: 10.7910/dvn/ivpo81/r4g3ji
title: petitions.xlsx
DOI: 10.7910/dvn/osvaz9/ekdmiw
title: petitions.xlsx
DOI: 10.7910/dvn/q6mnvy/054mpb
title: petitions.xlsx
DOI: 10.7910/dvn/qtaese/un8vp8
title: petitions.xlsx
DOI: 10.17632/9h6dvsr734.1
title: Data for: Somatic TP53 mutations are detectable in circulating tumour DNA from children with anaplastic Wilms’ tumours

description: ddPCR raw data files
DOI: 10.17632/tcbbtrhd9x.1
title: Data for: The Benefits of Water Information Systems: A Systematic Review

description: Coding database for systematic review of the economic impacts of water information systems