How Is Liquid Nitrogen Produced – Skills are important in the dynamic world of scientific research Laboratory equipment must not only be accurate, but also convenient and affordable Large-scale, proven instruments will always be a key part of scientific workflows But the trend towards smaller, more portable systems has efficiency gains in many areas opened Portable liquid nitrogen generators are an excellent example of this They offer a new approach to chemistry by providing reliable liquid nitrogen production directly on site.
At its core, a portable liquid nitrogen generator works by extracting nitrogen gas from the ambient air. Nitrogen, a large part of our atmosphere, is readily available. The extracted nitrogen gas undergoes a cooling process in the generator’s cryocooler and reaches its boiling point. This transition from gas to liquid is an interesting interplay of thermodynamics and cryogenics, which results in liquid nitrogen being stored in a vacuum-thermally insulated container. If you are interested, here is a complete breakdown of how a liquid nitrogen generator works
How Is Liquid Nitrogen Produced
The most obvious advantage of a portable liquid nitrogen generator is its convenience. Laboratories no longer have to face the challenges of external liquid nitrogen supplies. With a small footprint, these generators can be easily integrated into existing laboratories, ensuring that liquid nitrogen is always close at hand.
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While the initial investment in a portable liquid nitrogen generator may seem steep, the long-term savings are significant. Recurring costs for purchasing and shipping liquid nitrogen from an outside supplier can add up quickly By producing liquid nitrogen on-site, labs can reduce costs over time
As nitrogen makes up around 78% of our atmosphere, its presence is often unmistakable. This extensive supply ensures that laboratories will never run out of nitrogen gas generators, enabling uninterrupted research and testing.
The versatility of liquid nitrogen is well documented. Its applications range from cryogenic refrigeration and cryosurgery to food preservation and basic science research. With a portable liquid nitrogen generator, these applications can be explored without the constraints of an external supply chain.
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When weighing the capabilities of portable liquid nitrogen generators against their fixed counterparts, mobility is a clear differentiator. Portable generators equipped with wheels offer some flexibility, allowing placement in a laboratory or facility. This adaptation can be valuable in dynamic research environments where the spatial configuration can change. However, it is important to note that “portable” is not the same as “lightweight”. Although these units can be transported, their considerable weight means that they are not designed for heavy transport. In contrast, static systems, which are static, often have large capacities and can offer a wide range of benefits, but lack adaptable units.
The path of scientific research is clear: laboratories want freedom and efficiency The integration of portable liquid nitrogen generators into the laboratory equipment portfolio is proof of this trend. As the demand for manufacturing in this area grows, we can expect further improvements in this technology, making it more efficient and user-friendly.
In this we understand the evolving needs of modern laboratories Our range of liquid nitrogen generators are designed with chemists in mind, ensuring you have the tools to push the boundaries of scientific discovery. Explore the future of laboratory efficiency with liquid nitrogen generators Your research is excellent
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Any cookies that may not be specifically required for the website to function and are specifically used to collect user personal information through analytics, advertising, other embedded content. User consent is required before these cookies are executed on your website Cryogenics – MVS Engineering in collaboration with the leaders of Stirling Cryogenics (Holland) and Crymek (USA) brings you the world’s best liquid nitrogen production systems. . We are happy to offer two different technologies, thus enabling us to offer the most suitable solution to meet our customers’ needs.
Sterling Cryogenics is the world’s leading specialist in unique cryogenic refrigeration systems. This is due to the success of their Stirling cryogenerator (recovery cooler based on Stirling cycle). Stirling Cryogenics developed the Stirling cycle cryogenerator nearly 60 years ago and it has been the basis of their refrigeration systems ever since.
Cryomek USA developed and manufactured the world’s first commercial 4K Plus Tube Cryocooler (PTR). They manufacture the largest variety of single-stage Gifford-McMahon cycle cryocoolers available anywhere.
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Cryomec was founded in 1963 by Professor William E. Gifford, the inventor of the Gifford-McMahon cycle and the pulse tube cycle.
Stirling cryogenic styrene products include a variety of liquid nitrogen reactors that produce LN2 at 3 to 150 liters per hour (70 to 3600 liters per day). A plug and play, ready to manufacture system These generators take up very little space, use electricity for their operation and produce liquid nitrogen on site. Uses less power, takes up less space
The central component in all Stirling cryogenic brand equipment is the Stirling cycle cryogenerator. The Stirling cycle is significant because it is a closed cycle in which the internal working gas (Se) of the cryogenerator never comes into contact with the liquid to be cooled. They only connect to the walls of the heat exchanger through heat flow. This concept eliminates the pollution of the consumer process as well as the working gases of the Stirling cycle, resulting in longer operating cycles and longer life.
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A Stirling cycle compresses a fixed amount of helium and expands it in a closed loop. Compress at room temperature to release heat generated by pressure, while expanding at cryogenic temperatures required by the application.
The Stirling cycle is a thermodynamic closed cycle invented in 1616 by the Scottish minister Robert Stirling. It was used as an engine and at the time was considered a substitute for steam engines because their steam boilers were life-threatening. Stirling’s engine, the refrigerator was first introduced in 1832 Both machines experienced highs and lows in the 19th century After the invention of the internal combustion engine (gas, petrol and diesel engines) and the compressor refrigerator with external evaporation, the principle of machines almost universally condemned.
In 1946, Phillips began refining the Stirling cycle for use in cryogenic refrigeration. The result was the world-award winning development of the Stirling cryogenerator, which marked the beginning of significant cryogenic activity at Philips. Although the Stirling engine itself has not achieved commercial success, Stirling cryogenerators are sold by the thousands worldwide and are incorporated into equipment and projects used from Antarctica to the North Pole.
Applications For Ln2 In Biological Material Storage
With the Stirling Cryogenerator you have your own reliable and efficient cooling source Sterling Cryogenics is committed to providing you with complete self-support You will no longer depend on a supply of liquefied gas You will no longer waste expensive exhaust Simply create a cold space in your process, dilute the required gas or recirculate the refrigerant gas in a closed loop system. Sterling Cryogenics always has the right refrigeration solution for the job and a global service network to support you.
Stirling Cryogenics developed the Stirling cycle cryogenerator nearly 60 years ago and it has been the cornerstone of our refrigeration systems ever since. Stirling cryogenerators enable our system to produce temperatures from 200 K (-75°C) to 15 K (-258°C). Businesses, industries, hospitals and research centers around the world rely on our expertise to provide them with a reliable, on-site, gas and liquid supply for cooling purposes. A Stirling cryogenic refrigeration system is an essential piece of equipment where continuous cryogenic cooling is critical.
Stirling cryogenerators are more efficient than other cryogenic refrigeration principles. The Carnot efficiency is 30% at 77K, resulting in a high practical overall efficiency defined as available cooling power per kilowatt of electrical input power applied. Depending on the application temperature, the overall efficiency of a Stirling generator ranges from 10% for LN2 applications to 20% for LNG systems.
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Ceramic liquid nitrogen plants center their robust and versatile design on the Gifford-McMahon cryogenic principle. The modular system is fully integrated with an on-site gas generator from MVS Engineering.
On a small scale, the system is designed to be mobile and convenient
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