Natalie Dupont

Natalie Dupont

Toutes mes réponses sur les forums

20 sujets de 21 à 40 (sur un total de 66)
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  • en réponse à : What is the bitumen emulsion price per litre? #322405

    The price per litre of bitumen emulsion depends on raw materials, formulation, and production scale. GlobeCore plants help producers reduce costs through energy-efficient processing and automation while maintaining top product quality.

    en réponse à : Portable Midel 7131 transformer oil tester price #322050

    The GlobeCore TOR-7 cost depends on configuration, but it reduces costs by replacing multiple testing devices and preventing transformer failures.

    en réponse à : How to test Midel 7131 transformer oil with a universal tester? #321961

    Using GlobeCore TOR-7, you can quickly measure moisture, particle contamination, breakdown voltage, and dielectric losses in Midel 7131 oil on-site or in the lab.

    en réponse à : How to test mineral transformer oil with a universal tester? #321958

    The easiest way is using GlobeCore TOR-7, which performs multiple tests — including moisture, particle contamination, breakdown voltage, and tan delta — all in a single device.

    Economically, mutton fat biodiesel benefits from low feedstock cost (when regionally available), renewable energy incentives, and byproduct utilization. Challenges include variable fat quality, transport logistics, and cold-weather limitations. Environmentally, converting mutton fat reduces waste, methane emissions, and reliance on food crops. The GlobeCore USB plant supports modular scalability, allowing producers to start small and expand with demand. Regulatory compliance, sustainable sourcing, and energy efficiency are key for long-term viability in large-scale applications.

    If the FFA content exceeds 2–3%, a two-step process is preferred: 1) Acid-catalyzed esterification using sulfuric acid to lower FFAs, followed by 2) Base-catalyzed transesterification using NaOH or KOH. This prevents soap formation and ensures high biodiesel yield. The GlobeCore USB biodiesel plant supports both stages with automated dosing and reaction control, allowing reliable conversion even with raw or low-grade tallow. For low-FFA tallow, base-catalyzed transesterification alone is sufficient.

    en réponse à : How to turn sunflower oil into biofuel? #317361

    Sunflower oil is converted into biofuel through a process called transesterification, where the oil reacts with methanol and a catalyst (like sodium hydroxide). This separates glycerin from the fatty acid chains, forming biodiesel. Using the GlobeCore USB biodiesel production plant, the process is automated and optimized for speed, safety, and fuel quality. The unit handles mixing, heating, reacting, and separating, reducing labor and ensuring compliance with EN 14214 and ASTM D6751 fuel standards. It’s an ideal solution for farms, co-ops, or businesses looking to turn sunflower oil into usable fuel.

    The USB 6 Impeller Stirrer offers customizable impeller designs, variable speed control, and adaptability for different pesticide formulations, making it a versatile solution.

    The USB 6 Impeller Stirrer ensures fast and efficient dispersion of powders into liquids, preventing agglomeration and ensuring even distribution of active ingredients.

    en réponse à : what is the difference between silicone oil and mineral oil? #315128

    Silicone oil is a synthetic, polymer-based fluid with higher thermal stability and fire resistance, while mineral oil is petroleum-derived, more cost-effective, and widely used for its proven insulating and cooling properties.

    en réponse à : How does OLTC efficiency impact transformer performance? #132186

    Efficient OLTCs minimize energy losses, maintain voltage stability, and enhance transformer reliability, especially under varying load conditions.

    en réponse à : How is natural ester oil used in HV transformers? #132053

    It ensures efficient insulation, excellent fire safety, and minimal environmental impact, making it ideal for high-voltage applications.

    en réponse à : What is a marine power transformer? #131873

    A marine power transformer is a specialized electrical device designed to transfer electrical power efficiently and safely between circuits in marine environments. It is engineered to withstand harsh conditions, such as saltwater exposure, humidity, and temperature variations, ensuring reliable operation on ships.

    en réponse à : How do mobile bitumen emulsion plants operate? #131568

    Mobile plants are skid-mounted units designed for on-site production. They include compact storage, dosing, and mixing systems, allowing for flexibility and quick deployment.

    en réponse à : How are bitumen emulsion plants customized for specific outputs? #131520

    Plants can be customized with capacity-specific tanks, specialized emulsifier systems, and automation levels tailored to production needs, ensuring efficiency and product consistency.

    en réponse à : How does storage tank design impact bitumen emulsion quality? #131508

    Properly designed tanks with insulation, agitation systems, and temperature controls prevent sedimentation and maintain homogeneity. Clean tanks reduce contamination risks, preserving emulsion quality.

    en réponse à : How is the Bending Beam Rheometer (BBR) used in bitumen analysis? #131331

    The BBR assesses low-temperature properties by measuring the flexural creep stiffness of a bitumen beam specimen at low temperatures. It provides parameters like creep stiffness (S) and m-value (rate of stiffness change), indicating the binder’s ability to resist thermal cracking by absorbing stresses through deformation without fracturing.

    en réponse à : How is asphalt emulsion spray applied effectively? #131231

    Asphalt emulsion spray is applied using calibrated distributor trucks or spray equipment to ensure even coverage. Proper nozzle selection and pressure settings are critical for effective application.

    Standards like ASTM D977 (anionic emulsions) and ASTM D2397 (cationic emulsions) are widely used. AASHTO and EN standards also provide guidelines for testing, classification, and performance requirements, ensuring quality and consistency.

    en réponse à : What is bitumen emulsion? #130999

    Bitumen emulsion is a mixture of fine droplets of bitumen and water. It is a liquid form of bitumen, making it easier to handle at lower temperatures compared to traditional hot bitumen. The emulsion is stabilized by adding an emulsifying agent, which prevents the bitumen droplets from coalescing. Bitumen emulsions are widely used in road construction and maintenance, including surface dressing, tack coats, and cold mix applications. They offer advantages such as reduced energy consumption, lower emissions, and safer handling due to lower application temperatures.

20 sujets de 21 à 40 (sur un total de 66)

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