Cold Discharge Research Articles

Experimental study on the influence of gas-blowing flow rate on the cold discharge characteristics of external ice-melting ice storage system

External ice-melting ice storage system has the advantage of fast cold discharge. However, the instability of outlet water temperature limits its practical application. In this paper, an experimental bench is built for testing cold discharge performance of the external ice-melting ice storage system combined with a gas-blowing device based on theoretical analysis. The influence of different gas-blowing flow rates on the vertical temperature distribution inside the ice storage tank, outlet water temperature, cold discharge rate, instantaneous cold discharge capacity, and total cold discharge capacity is analyzed and compared during the cold discharge process by experiments. The experimental results show that as the gas-blowing flow rate increases, the convective heat transfer between the water and ice in the water space of the ice storage tank is enhanced, the outlet water temperature decreases, and the cold discharge rate increases. Through comprehensive analysis, it is found that for a small external ice-melting ice storage system in this experiment, the outstanding comprehensive performance can be achieved with 1L/min gas-blowing flow rate, which. The average outlet water temperature during the latent heat phase is 1.9 °C lower and the cold discharge rate is 34.8 % higher than that without gas blowing.

Smart integration of cold plasma stream and surface discharge with ns laser ablation for composite nanomaterial.

In this paper, smart integration of cold dielectric barrier discharge (DBD) plasma in various geometrical arrangements with laser ablation at atmospheric pressure for nanomaterial was described. A composite Co:ZnO target was ablated in an airflow by a nanosecond (ns) laser (wavelength: 1064 nm, pulse duration: 30 ns) using fluence of 5 J-cm-2 at a repetition rate of 10 Hz. The nanomaterial produced under vertical and oblique plasma streams, surface discharge and gas flow, were compared. Utilization surface discharge markedly improved the material adhesion by altering surface intrinsic behavior, inducing anticipated surface energy activation, chemical changes, and the formation of a densely packed solid structure. Under all conditions, the material consistently retained its crystalline nature, elemental composition, and ultraviolet emission characteristics. These preliminary findings hold promise for additional research, suggesting avenues for making complex materials in a flexible environment. Such new advancements could facilitate applications in the biomedical, catalysis, pharmaceutical, and surgical device domains.

Performance evaluation and optimization of compact tube-fin latent heat storage system in phase change nanoemulsion discharge mode

The low thermal conductivity of phase change materials (PCMs) and the reduced heat transfer temperature difference along a tube both limit the thermal performance of latent heat thermal energy storage (LHTES). Herein, a compact tube-fin LHTES system based on phase change nanoemulsions was developed and the heat transfer process of nanoemulsion and PCM was numerically investigated. The effects of the heat transfer structure of the heat exchanger and the thermophysical parameters of the heat transfer fluid (HTF) on the cold energy discharge performance of the system were quantified. The optimized model reduced the discharge time by 24.4 % in nanoemulsion mode relative to water. Heat transfer improvement on the PCM side could be achieved by decreasing the fin spacing and tube spacing and by increasing the fin thickness. Such improvement reinforced the heat transfer enhancement of the nanoemulsion. The heat transfer mechanism was explained by the temperature distributions of the HTF and PCM along the tube. The phase-change thermostatic properties of the nanoemulsion and PCM contributed to the formation of dual-phase-change coupled heat transfer (i.e., the heat transfer process when the fluid inside the tube and the PCM filled outside the tube undergo a simultaneous phase change) within the LHTES, increasing the heat transfer temperature difference and the magnitude of the driving force. Increasing the phase change temperature difference accelerated the onset of dual-phase-change heat transfer, while increasing the PCM content prolonged the process. Briefly, this study provided operational and design assistance for LHTES systems in nanoemulsion mode with the intention to accelerate heat transfer rates.

Application of cold argon plasma on germination, root length, and decontamination of soybean cultivars

Applying cold discharge plasma can potentially alter plants' germination characteristics by triggering their physiological activities. As a main crop in many countries, soybean was examined in the present study using cultivars such as Arian, Katoul, Saba, Sari, and Williams in a cold argon plasma. This study has been motivated by the importance of plant production worldwide, considering climate change and the increasing needs of human populations for food. This study was performed to inspect the effect of cold plasma treatment on seed germination and the impact of argon plasma on microbial decontamination was investigated on soybeans. Also, the employed cultivars have not been studied until now the radicals generated from argon were detected by optical emission spectrometry (OES), and a collisional radiative model was used to describe electron density. The germination properties, including final germination percentage (FGP), mean germination time (MGT), root length, and electrical conductivity of biomolecules released from the seeds, were investigated after the plasma treatments for 30, 60, 180, 300, and 420 s. The decontamination effect of the plasma on Aspergillus flavus (A.flavus) and Fusarium solani (F.solani) was also examined. The plasma for 60 s induced a maximum FGP change of 23.12 ± 0.34% and a lowest MGT value of 1.40 ± 0.007 days. Moreover, the ultimate root length was 56.12 ± 2.89%, in the seeds treated for 60 s. The plasma exposure, however, failed to yield a significant enhancement in electrical conductivity, even when the discharge duration was extended to 180 s or longer. Therefore, the plasma duration of 180 s was selected for the blotter technique. Both fungi showed successful sterilization; their infectivity inhibition was 67 ± 4 and 65 ± 3.1%, respectively. In general, the cold plasma used for soybeans in the present study preserved their healthy qualities and reduced the degree of fungal contamination.

Tungsten Material Behavior under H2, D2, and He Plasma Interaction Conditions in the Framework of Fusion-Relevant Studies.

In the current study, bulk tungsten material surfaces are exposed to hydrogen, deuterium, and helium plasmas in the radiofrequency domain (13.56 MHz) at an input power of 250 W using the hollow-cathode configuration. The ejected material is collected on titanium substrates at various distances (from 6 mm up to 40 mm). Therefore, the exposed tungsten materials are investigated for surface changes (blister occurrence, dust formation, or nano-structuration), along with the crystallinity, depending on the plasma's exposure times (from 30 min up to 120 min for each plasma type). Also, the collected materials are analyzed (morphological, structural, and statistical investigations) for dust and dust film-like appearance. Plasma discharges are analyzed using two methods: optical emission spectroscopy, and single Langmuir probes, to emphasize the nature of the used plasmas (cold discharges, ~2 eV), along with the presence of tungsten emission (e.g., WI 406.31 nm, WI 421.31 nm) during the plasma lifetime. By using a dedicated protocol, a method was established for obtaining fusion-relevant tungsten surfaces in the hydrogen and deuterium plasma discharges. By using the implemented method, the current paper introduces the possibility of obtaining a new tungsten morphology, i.e., the dandelion-like shape, by using helium plasma, in which the W18O49 compound can be found.

Thermohydraulic Analysis of Ocean Thermal Energy Conversion

Thermohydraulic analysis is a mandatory analysis for power plants, including in this case marine thermal power plants (OTEC = ocens thermal energy conversion). The application to OTEC shows that temperature and pressure are things that must be considered, the higher the surface temperature, the greater the output power. Calculation of heat flow is a variable that is determined before a plant is built. This study aims to make a mathematical analysis of heat flow or thermohydraulic. The study uses the study of the heritage of Mendalan so that modeling and determination of design variables are formed, including heat flow in the pipe, diameter, hot and cold water discharge and boiler variables

Energy assessment and thermodynamic evolution of a novel semi-clathrate hydrate cold storage system with internally circulating gas bubble disturbance

Low energy storage density, intermittent phase changes, and heat transfer barriers have posed significant challenges in the implementation of hydrate energy storage systems. Based on the heterogeneous nucleation mechanism for tetrabutylammonium bromide (TBAB) hydrate phase change energy storage, a novel cold storage system with internally circulating gas disturbance was constructed for energy evaluation and thermodynamic evolution. The hydrate cold storage efficiency, response time, dynamic driving force, unique force pattern of the coils and guest molecule diffusion were analyzed for the first time. The bubbles generated by gas internal circulation provided numerous nucleation sites for hydrate formation, efficiently promoting the energy storage process. The disturbances caused by the bubbles also rapidly transmitted the energy generated by the phase change. A hydrate storage density of 57.4 kWh/m3 for this system was the maximum among known hydrate storage systems. Notably, a change in solution concentration (from 10 wt% to 40 wt%) resulted in a 2–3-fold increase in the cold charge capacity. Rapid dilution of local solutions and rapid release of cold were the ways to promote the cold discharge. Less damage to the stress structure of the coil was due to the loose accumulation of hydrate particles under gas disturbance. The microbubbles generated by the gas disturbance enabled heterogeneous nucleation and heat-mass transfer in the hydrate cold storage. The gas disturbance-based hydrate energy storage process holds significant guiding value for various applications such as refrigerated transport, building cooling systems, and grid peak shaving.

Optimal location selection for LNG terminal considering marine impact of cold discharge: A case study of Tongyeong LNG terminal

The impact of cold discharge (CD) released from Tongyeong LNG terminal was evaluated at different flow rates. At the actual flow rate of 10 m3 s−1, the impact of CD on surrounding seawaters was insignificant with a slight decrease in seawater temperature. The surface and bottom seawater temperature within a 1 km radius from the discharge outlet decreased by an average of 0.4 °C and 0.6 °C, respectively. At a simulation flow rate of 500 m3 s−1, CD settled to the bottom and widely diffused. The seawater temperature within a 1 km radius from the discharge outlet decreased by an average of 3.1 °C and 5.2 °C in the surface and bottom layers, respectively. A machine learning-based model was trained to estimate the diffusion area of CD using physical factors at the outlet as predictors. The trained model could identify not only the optimal sites of the LNG terminal to minimize the impact of CD on the surrounding seawaters but also worst-case site. This CD modeling process could enable low-cost impact assessments on seawaters, and the same process could be used for thermal discharge.

A numerical simulation and analysis of the discharge characteristics and heat transfer performance during the ice-storage system

During the ice melting process of the external ice-melting ice storage system, there is uneven ice melting in the different height of the ice layer, which directly affects cold discharge characteristics. Reasonable water flowrate of the distributor can improve cold discharge characteristics. A 3D dynamic mesh model was built using the computational fluid dynamics (CFD) method, phase change interface movement with time was tracked. And the ice-water heat transfer characteristics at different heights were analyzed and the influence of water distributor's flowrate ice-water mixture heat transfer performance and cold discharge characteristics during ice-melting process were also explored. The results showed that the ice layer above 30 mm height, The Nusselt number of water space averagely increased 23.8 % when the height had 5 mm increment. When the water flowrate increased by 0.01 g/s, the average Nusselt number of the water space increased by 6.7 % and the water outlet temperature increased by 12 % on average. Though the increasing of water flowrate can improve the convective heat transfer between ice and water, it also resulted in the standard temperature deviation and water outlet temperature increase. Under the premise of satisfying the cooling load, the water flowrate of the distributor should not be excessive.

A CRITICAL REVIEW OF KANAKASAVAM

Kanakasavam is a polyherbal formulation with 14 ingredients used mainly in Swasa roga (respiratory diseases). In clinical practice, Kanakasavam is primarily used to treat respiratory diseases. It contains purified datura, which acts as a bronchodilator and has anti-inflammatory properties. It is also known to provide relief from an acute asthma attack and increases the airflow to the lungs by dilating and relaxing the bronchial passageways. Kanakasavam is also used for bronchitis, productive cough, chronic fever, haemorrhages, and lung injury. In addition, it is also beneficial in the treatment of the common cold, rhinitis and abnormal nasal discharges. This article is an attempt to analyse the formulation critically.

Hydrological, thermal and chemical influence of an intact rock glacier discharge on mountain stream water

Rock glaciers are the most prominent permafrost-related mountain landforms. This study investigates the effects of the discharge from an intact rock glacier on the hydrological, thermal and chemical dynamics of a high-elevation stream in the NW Italian Alps. Despite draining only 39 % of the watershed area, the rock glacier sourced a disproportionately large amount of discharge to the stream, with the highest relative contribution to the catchment streamflow occurring in late summer - early autumn (up to 63 %). However, ice melt was estimated to be only a minor component to the discharge of the rock glacier, due to its insulating coarse debris mantle. The sedimentological characteristics and internal hydrological system of the rock glacier played a major role in its capability to store and transmit relevant amounts of groundwater, especially during the baseflow periods. Besides the hydrological influence, the cold and solute-enriched discharge from the rock glacier significantly lowered the stream water temperature (especially during warm atmospheric periods) as well as increased the concentrations of most solutes in the stream. Furthermore, in the two lobes forming the rock glacier, different internal hydrological systems and flowpaths, likely driven by different permafrost and ice content, caused contrasting hydrological and chemical behaviours. Indeed, higher hydrological contributions and significant seasonal trends in solute concentrations were found in the lobe with higher permafrost and ice content. Our results highlight the relevance of rock glaciers as water resources, despite the minor ice melt contribution, also suggesting their potential, increasing hydrological importance in the light of climate warming.

Increasing Alaskan river discharge during the cold season is driven by recent warming

Arctic hydrology is experiencing rapid changes including earlier snow melt, permafrost degradation, increasing active layer depth, and reduced river ice, all of which are expected to lead to changes in stream flow regimes. Recently, long-term (>60 years) climate reanalysis and river discharge observation data have become available. We utilized these data to assess long-term changes in discharge and their hydroclimatic drivers. River discharge during the cold season (October–April) increased by 10% per decade. The most widespread discharge increase occurred in April (15% per decade), the month of ice break-up for the majority of basins. In October, when river ice formation generally begins, average monthly discharge increased by 7% per decade. Long-term air temperature increases in October and April increased the number of days above freezing (+1.1 d per decade) resulting in increased snow ablation (20% per decade) and decreased snow water equivalent (−12% per decade). Compared to the historical period (1960–1989), mean April and October air temperature in the recent period (1990–2019) have greater correlation with monthly discharge from 0.33 to 0.68 and 0.0–0.48, respectively. This indicates that the recent increases in air temperature are directly related to these discharge changes. Ubiquitous increases in cold and shoulder-season discharge demonstrate the scale at which hydrologic and biogeochemical fluxes are being altered in the Arctic.

Transition in Optical and Radio Features During the Early Development of Negative Intracloud Leader

AbstractWhat happens when the upward in‐cloud (IC) breakdown transitions into horizontally expanding extension? Optical observations of this transition in IC lightning have not previously been reported. We identify the radio and optical signatures of this transition in low‐frequency (LF) magnetic, very high frequency interferometric and space‐borne optical measurements. For initial IC development in stratiform clouds, the ratio of 337/777.4 nm radiance is above unity prior to the transition but is almost always below unity after the transition. In particular, the 337 nm radiance drops significantly while the 777.4 nm radiance remains almost invariant after the transition, suggesting when the dominant illumination process of IC leaders changes from cold streamer discharges to a likely stepped leader. Furthermore, this transition in the LF and optical measurements resembles the reported changes in the cloud‐to‐ground measurements from initial leader to stepped leader, indicating that the initial leader may be physically different from the stepped leader.

Efficient Utilization and Response of Energy Resources Climate Change Research

The efficient utilization of energy resources is one of the most important national development strategies at present. The proposal of carbon peaking and carbon neutrality has put forward new requirements for industry and smart agriculture. The realization of the revitalization strategy of emerging industries and smart agriculture is inseparable from the support of policies and finance. However, traditional concepts and financial services face many pain points such as information asymmetry. Carry out new reforms on technical routes, methods, input and output, and environmental protection issues such as backward treatment of various recyclable resources, high energy consumption, high pollution, high investment and low income, and optimize, upgrade and improve the original equipment to increase thermal efficiency by 20-50%, reduce the number of times and links of energy utilization and conversion, comprehensive utilization, rational utilization, cold discharge technology, recover all the waste heat that should be discharged, reduce carbon dioxide emissions by 20-50%, and increase the output income several times, tailor-made Design input and output, resource utilization, energy utilization, ecologicalization, carbon dioxide can be directionally recycled under normal temperature emissions to provide surrounding plants or plant factories as nutrients for photosynthesis, and methane greenhouse gas generated during planting can be recycled into the furnace as a supplementary fuel, Truly achieve natural carbon neutrality in nature. It solves the problem of difficult waste disposal. The generated energy is used in multiple stages, saving 20-50% of energy, improving thermal efficiency, reducing mining, reducing combustion, and reducing emissions. The carbon dioxide after combustion and emissions are designed with reasonable design and are directed to provide plants or plants. After the neutralization of the plant factory, an internal circular economy has been formed, which has driven the vigorous development of modern smart agriculture. Carbon dioxide emissions will be reduced by 40-90%. There is no thermal pollution, and the emission is carried out at room temperature. Radical rule, especially the traditional technology should discharge waste heat of 180-300 °C for total heat recovery and convert it into cold discharge with an efficiency of 76%, the difference between positive and negative is 176%, and heat pollution is replaced by cold. Climate change plays a huge role in allowing nature to achieve natural balance and neutrality

Effect of modified washing process on water usage, composition and gelling properties of grass carp surimi.

Washing is an essential process in surimi production, from which a large amount of wastewater is generated. Due to the increasing pressure of environmental protection, it is an urgent technical requirement for surimi manufacturers to reduce water usage while maintaining the quality of surimi. In this study, composition, structure and gelling properties of grass carp surimi prepared with a modified washing process (MWP) were investigated. Intermediate dehydration with various compression ratios were utilized between two washing cycles. Water usage and wastewater discharge were reduced significantly by 33% and 38%, respectively, when MWP was applied. As the compression ratio increased, composition of fat, cathepsins, transglutaminase and heme proteins in surimi decreased gradually. Yield, protein content and the major protein pattern of surimi were not changed, but surface hydrophobicity gradually decreased. As the compression rate increased to 1:2.0, textural values and water holding capacity of the corresponding surimi gel decreased gradually, while whiteness increased and then remained unchanged. At a higher compression ratio (>1:1.5), aggregated network and excessive free water were observed in the surimi gel. Composition and gelling properties of the MWP surimi with a compression ratio of 1:1.2-1:1.5 were equal to those of the surimi prepared under conventional three-cycle washing. Results indicated that MWP demonstrated its great potential in surimi production by dramatically reducing the usage of cold water and discharge of wastewater without scarifying surimi quality. © 2022 Society of Chemical Industry.

Heat transfer, energy conversion, and efficiency during cold discharge of a novel tetrabutylammonium bromide hydrate cold storage system

• External melting by internal heat exchange was used to study hydrate cold discharge. • Thermal buffering occurred due to energy balance caused by heat transfer. • Forced convection from gas disturbance reduced cold discharge time by 3 times. • Cold discharge efficiency can be maintained above 83 % under different conditions. • Time-efficiency number was proved to quantify the total cold discharge efficiency. Cold storage technologies using clathrate hydrates as working media have recently attracted more attention in the energy storage field because they undergo phase transitions with large latent heats and suitable temperatures for cold storage. However, the application of hydrate cold storage technologies is limited by the fact that the cold discharge mechanism is still unclear. Thus, this paper adopted the method of external melting by internal heat exchange to investigate the heat transfer, energy conversion and efficiency of a novel tetrabutylammonium bromide (TBAB) hydrate cold storage system during cold discharge. The system consisted of an internal circulating gas disturbance device and a metal spiral hydrate-on-coil heat exchanger. The heat transfer mechanism and cold discharge capacity, rate, and efficiency for different cold charge temperatures, flow rates and disturbance modes were compared and analyzed. A novel time-efficiency number was introduced to evaluate the comprehensive performance of the time, energy conversion and efficiency of cold discharge. The results showed that the heat exchange balance during the cold charge and discharge stages had a thermal buffering effect on the storage unit. Forced convection caused by gas disturbance resulted in a larger cold discharge capacity and reduced the discharge time by a factor of 3 compared to operation without gas disturbance. In addition, the cold discharge capacity gradually increased with decreasing cold charge temperature and increasing flow rate. The cold discharge efficiency was more than 83% under different conditions. A comparison showed that the time-efficiency number tended to be larger with gas disturbance. This study showed that the time-efficiency number can be used for quantitative comparison of the cold discharge time and efficiency in hydrate cold storage systems.

냉배수 방류에 따른 하계 진해만의 성층강도 및 용존산소농도 변화 예측

본 연구에서는 통영 LNG 기지에서 방류되는 냉배수에 의한 하계(8월) 진해만의 물리적 특성 및 용존산소농도(DO, Dissolved Oxygen) 변화를 조사하였다. 실제 냉배수 방류량 조건인 Case1(10 m³ sec<SUP>-1</SUP>) 모의 결과, 냉배수가 진해만의 물리적 특성에 미치는 영향은 매우 미미하였으며, DO 변화 또한 관측되지 않았다. 모의 조건인 Case2(100 m³ sec<SUP>-1</SUP>) 모의 결과, 방류구 반경 0.5 km 범위에서 수온이 약 1℃ 감소하였다. Case3(1000 m³ sec<SUP>-1</SUP>)에서는 방류구 반경 0.5 km 범위에서 수온이 약 4~5 ℃ 감소하였으며, 냉배수가 진해만 전 해역으로 확산하였다. 냉배수 방류에 따른 수온 감소는 PEA(Potential Energy Anomaly)와 DO를 증가시키는 것으로 나타났다. PEA는 거제-가덕 수로에서 최대 23.2 J m<SUP>-3</SUP>, DO는 통영 연안에서 최대 1.0 mg L<SUP>-1</SUP> 증가하는 것으로 예측되었다. 상기 결과로부터 냉배수가 하계 진해만의 환경에 미치는 영향은 매우 미미함을 확인하였다. 또한, 냉배수를 국소 해역의 빈산소수괴 해소에 활용할 수 있을 것으로 기대된다.

Fault zone hydrogeology in arid environments: The origin of cold springs in the Wadi Araba Basin, Egypt

AbstractThe role of faults in controlling groundwater flow in the Sahara and most of the hyper‐arid deserts is poorly understood due to scarcity of hydrological data. The Wadi Araba Basin (WAB), in the Eastern Sahara, is highly affected by folds and faults associated with Senonian tectonics and Paleogene rifting. Using the WAB as a test site, satellite imagery, aeromagnetic maps, field observations, isotopic and geochemical data were examined to unravel the structural control on groundwater flow dynamics in the Sahara. Analysis of satellite imagery indicated that springs occur along structurally controlled scarps. Isotopic data suggested that cold springs in the WAB showed a striking similarity with the Sinai Nubian aquifer system (NAS) water and the thermal springs along the Gulf of Suez (e.g., δ18O = −8.01‰ to −5.24‰ and δD = −53.09‰ to −31.12‰) demonstrating similar recharge sources. The findings advocated that cold springs in the WAB represent a natural discharge from a previously undefined aquifer in the Eastern Desert of Egypt rather than infiltrated precipitation over the plateaus surrounding the WAB or through hydrologic windows from deep crystalline basement flow. A complex role of the geological structures was inferred including: (1) channelling of the groundwater flow along low‐angle faults, (2) compartmentalization of the groundwater flow upslope from high‐angle faults, and (3) reduction of the depth to the main aquifer in a breached anticline setting, which resulted in cold spring discharge temperatures (13–22°C). Our findings emphasize on the complex role of faults and folds in controlling groundwater flow, which should be taken into consideration in future examination of aquifer response to climate variability in the Sahara and similar deserts worldwide.

Comparative Study of Discharge Emission Amplification in an Ar-Driven Gas Discharge System with Microporous Zeolite Cathode

In this study, a zeolite-gas discharge system (ZGDS) with a microporous dielectric cathode was examined according to the physical properties of cold non-equilibrium plasma and discharge mode. The discharge emission intensity (DEI) in the UV, visible and near IR ranges (330–850 nm) generated by a planar Ar-driven ZGDS and the possibility of enhancing DEI in a wide range of gas pressure pg up to one atmosphere (10–760 Torr) for given properties of a microporous zeolite cathode (MZC) has been studied. Interesting results on the discharge emission amplification for different gas-discharge gap dg (45–250 μm) in ambient air and Ar-driven ZGDS are presented for the first time to our knowledge. Electrons entering the discharge gap with microporous and multichannel structure of the MZC are multiplied in the electric field by the avalanche mechanism, so that the current and DEI increase in the discharge gap of the ZGDS. We studied the relative DEI to evaluate the enhanced performance of the ZGDS as a source of stable discharge emission in a wide range of pg up to one atmosphere.

Biophototic in azuki bean seeds treated with ultrahigh dilutions

Seed analysis is usually performed by destructive samples with time-consuming methods. Treatments that improve seed vigor are suggested based on bioassays and protocols for most plants. This includes the use of images to assess quality and pro- vide information that supports decisions. However, instrumental cost has not made these technologies widely used. The objective of this research was to study biophotonic images generated by low cost technologies - cold plasma scanner or gas discharge visualization (GDV) and speckle laser (BSL) - to evaluate the germination of adzuki beans seeds treated with ultrahigh dilutions (UHD). The research was carried out at the EPAGRI Homeopathy and Plant Health Laboratory, with a post-graduate support at the State University of Santa Catarina (UDESC). The images of the seeds were diagnosed mathematically, before and after germination, using “Local Connected Fractal Dimension Analysis” (LCFD) and “Time History Speckle Pattern” (THSP). The results show that the images identify the effects of high dilution - Bryonia alba and Silicea terra, at 6, 12 and 30 CH (centesimal hahnemannian dilution order) - on the seeds of azuki beans. There were statistically differences (p &lt; 1% and p &lt; 5%) of the treatments in relation to the control: water. Only Silicea terra 30CH inhibited seed germination. The signals found in the BSL images of the seeds were superior to the GDV signals, showing an average of 89% correct responses (BSL) against 87% (GDV).