DSO Archives - Pietro Fiorentini

Hydrogen storage vessels

Anna Veronesi — Wed, 24 Jul 2024 09:17:44 +0000

One of the great advantages of hydrogen is that it can be used as energy storage at times of surplus production from renewable sources, such as wind and photovoltaics.

Thanks to our experience in making natural gas tanks, we are able to offer a wide range of pressure tanks suitable for hydrogen.

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Hydrogen innovation lab

Digital Team — Mon, 27 May 2024 12:33:52 +0000

On October 20, 2022, Pietro Fiorentini inaugurated its hydrogen test laboratory, a multifunctional facility where hydrogen can be produced by electrolysis and used, where blending of hydrogen and natural gas can be done, and the readiness of devices used along existing networks can be tested.

To handle hydrogen and natural gas blending, the hydrogen test laboratory has two separate lines that make an initial pressure jump so that almost identical mixing pressures and temperatures are achieved. Hydrogen blending is handled through a mixing station consisting of three mass flow controllers, two on the hydrogen line and one on the natural gas line: these are flow meters connected to a electrovalve with continuous regulation. Once the desired mixture is set, the control system precisely adjusts the opening of the valves to ensure the correct flow rates on the two branches of the circuit and keep the final mixture balanced. The laboratory is designed to be able to generate any mixture between the two gases, up to and including working exclusively with hydrogen.

Before mixtures with hydrogen can be injected into existing networks, it is necessary to be sure that the products used for pressure management and fiscal measurement are suitable for this purpose through a common path of study, experimentation, and observation to test materials and performance of the devices. The hydrogen test laboratory is able to evaluate the readiness of the instruments used along the network, that is, their ability to handle different mixtures of hydrogen and natural gas.

The purpose of Pietro Fiorentini’s hydrogen test laboratory is not only to be a simple testing area for the Group’s products, but also a catalyst for the creation of new technologies that can generate comparison and innovative solutions together with other entities and companies in the sector, creating a hub of excellence for Italy.

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Biomethane grid injection – FioGrid

Digital Team — Mon, 27 May 2024 06:20:32 +0000

Soon after the biogas upgrading process undergone via Pietro Fiorentini’s FIOGrade, pure biomethane is obtained and ready to be injected into the gas grid.

FIOGrade upgrading system is fully integrated with our biomethane grid injection solution – FIOGrid, which is comprehensive of quality assessment, measurement of the gas flow, compression and pressure regulation, and odorisation.

The FIOGrid system accurately analyses and measures biomethane in several stages. If the composition of the biomethane produced complies with the injection parameters laid down in UNI/TS 11537, the biomethane is suitable for injection into the grid.

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Hydrogen blending stations

Digital Team — Thu, 04 Mar 2021 11:36:21 +0000

Hydrogen is finally granting a key role in the energy arena. It is a precious molecule with the property of being easily produced from renewable power and representing a complementary solution to other green gases and to electrification process, especially as sustainable vehicles fuel and as industrial high temperatures energy carrer.
On the other hand, the need of a large scale use of hydrogen is pushing gas infrastructure to drastically evolve. Pietro Fiorentini is applying its international 80 years experience on gas networks to face this exciting challenge: from designing and testing hydrogen ready solutions up to developing new hydrogen blending stations, our purpose is to exploit the full potential of existing gas networks to accept and deliver hydrogen.

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BiRemi

Digital Team — Thu, 04 Mar 2021 11:30:16 +0000

Thanks to their capillarity, gas distribution networks are the perfect destination to gather decentralized renewable gas productions. The coming of renewable energies asks the networks to grant gas injection into the grid regardless of consumptions: the new mission is to manage the difference between injection and withdrawal.
BiRemi is the new Pietro Fiorentini product family that covers this new needs: automation, treatment and gas targeting systems. The two-way stream of the gas towards the transportation network is only the most visible part.

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Distribution stations

Digital Team — Thu, 04 Mar 2021 11:29:26 +0000

District stations or industrial connections: thanks to its know-how, Pietro Fiorentini has a specific solution of packaged reducing station studied for quick and safe installation in the field.
Ready to install pressure reducing station fulfilling to all requirements: from protection against tampering to the integration with remote communication devices, from low architectural impact cabinets to the protection against specific climatic conditions, together with Pietro Fiorentini well known range of natural gas pressure regulators, valves and safety devices.
Our pressure reducing stations concept are also now available with a full package of smart sensors and mechatronic devices to make gas distribution networks ready for the future.

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Fiscal metering

Digital Team — Thu, 04 Mar 2021 11:27:46 +0000

Custody transfer occurs when a financial transaction is correlated by the gas ownership passage. This can be either between shippers and between shippers and sellers. The amount of payment is usually calculated as function of the amount of fluid transferred or as function of the amount of energy contained in the gas.
In this application, accuracy is extremely important and it is ruled by several national and international institutes and standards.
Thanks to its extensive experience in providing custody transfer metering solutions, Pietro Fiorentini designs and supplies fiscal metering systems tailored on specific accuracy needs through different combinations of:

multiple parallel meter runs;
multiple meters in series;
volume converters;
online gas chromatography to calculate energy content;
temperature and pressure transmitters;
systems for registration and retransmission of data;
systems for diagnostics and management of redundancy.

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Gas metering

Digital Team — Thu, 04 Mar 2021 11:26:20 +0000

Gas metering stations are located along gas distribution and transmission networks. These stations allow pipeline operators and local distribution companies to monitor, manage, and account for the natural gas flowing through the network.
The main scope of a gas metering station is to measure the flow of gas, allowing distribution companies to manage the network and gas sellers to allocate and bill the consumption.
The flow rate through a station can be measured by means of different devices such as rotary, turbine and ultrasonic meters and orifice fittings. They record the flow rate in actual cubic meters and a volume converter calculates the equivalent compendated for pressure, temperature and density.

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Odomatic – Electronic dosing odorizing pump system

Digital Team — Thu, 04 Mar 2021 11:18:35 +0000

The electronic dosing odorizing pump system Odomatic by Pietro Fiorentini has been designed specifically to guarantee a constant degree of odorization of gas independently from flow rate, type, or odorant use and from the degree of odorization required, avoiding all the inconvenience caused by traditional lapping systems.
Odomatic system mainly guarantees:

a constant degree of odorization in time, independent from flow rate of gas;
control and measurement of the quantity of liquid odorizer injected to the network by means of flow switch and/or flowmeter;
hourly, daily and monthly printouts of reports showing the average odorization rate, the quantity injected and the volume of gas output.

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OLF – Lapping odorizing system

Digital Team — Thu, 04 Mar 2021 11:18:06 +0000

The lapping odorizing system OLF by Pietro Fiorentini consists of a tank containing odorant in liquid state. Natural gas passes through the vessel, and, through contact with the vaporous part of the odorant, becomes suitable for injection.
This solution can be used with mono component type odorants, and odorants made up of mixtures of components having similar vapor pressures. It is available with a total capacity of 24, 125, 185 or 265 liters, and is suitable for a maximum working pressure up to 85 bar.

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Dosafit – Electronic odorizing system

Digital Team — Thu, 04 Mar 2021 11:17:27 +0000

Based on the principle of controlled injection of odorizer, Dosafit is the electronic odorizing system by Pietro Fiorentini that relies on gas pressure instead of relying on separate injection pumps.
Dosafit is usually paired with OLF, the lapping odorizing system that stores the odorizer and acts as a backup in case of failure.
Dosafit guarantees:

a constant odorization rate over time independently from variations in the gas flow rate;
control and metering of the quantity of odorizer liquid put into the pipeline by the capacity level;
remote display of the actual odorizer level in the lapping odorizing system;
automatic intervention in the event of failure and/or power blackout;
possibility of transmitting all the distribution data and alarms through the phone line.

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