Edit ModuleShow Tags

SwRI to Develop Linear Motor Recip

Goal is to reduce costs for hydrogen compression


Published:

Southwest Research Institute (SwRI) has received a US$1.8 million contract from the U.S. Department of Energy to develop, build and test a linear motor reciprocating compressor (LMRC).

The goal of the project is to increase efficiency and reduce costs for hydrogen compression, paving the way to economical hydrogen storage. The contract is one of 10 that the department has awarded to advance hydrogen production and delivery technologies.

The LMRC is based on an SwRI-patented concept of driving a permanent magnet piston inside a hermetically sealed compressor cylinder through electromagnetic winding, thus minimizing mechanical part count, reducing leakage and ensuring better reliability.

SwRI’s researchers expect the LMRC system will be able to achieve the required compression ratio with efficiency greater than 95%, greatly exceeding current equipment capabilities with efficiencies that are typically only about 73%.

“The simplified design should also be more reliable, requiring less maintenance, and it can easily be modularized for installation in the field,” said Eugene Broerman, a senior research engineer in SwRI’s mechanical engineering division and manager of the DOE project.

 

Edit ModuleShow Tags

Archive »Recent Articles

Opcon Selling Compressor, Waste Heat Business

Opcon AB, the energy and environmental technology group, has signed a Memorandum of Understanding (MoU) to sell part of its compressor technology and waste heat recovery business.

St. Clair Compressor Station Gets Upgrade

Consumers Energy is looking to improve the St. Clair Compressor Station, Ira Township, Michigan, with a US$165 million upgrade.

Capstone Microturbines To Power Two New Shale Compressor Stations

Capstone Turbine received orders from E-Finity Distributed Generation for microturbines to be used for oil and gas operations in the Marcellus and Utica Shale regions.

DCL Nets PICA As New Distributor

DCL America Inc. has added a new distributor for its Northeastern United States - Power Ignition and Controls Appalachia (PICA).

Caterpillar Releases Valves, Seats For Pressure Pumping Customers

Caterpillar has released its Cat valves and seats for well stimulation pump fluid ends. Cat 4- and 5-series valves and seats are designed to maximize interchangeability across the Cat well stimulation fluid end line and be dimensionally compatible with industry standard fluid ends in the 2000 to 3000 hp (1491 to 2237 kW) range. Fluid end valves and seats are highly-consumed parts in well stimulation operations and, as a result, are frequently replaced. Historically, Caterpillar uses valves and seats obtained from alternate sources. Caterpillar’s new fluid end valves and seats provide decreased wear and extended life to pressure pumping customers, the company said. The material life of the fluid ends is extended by optimizing the geometry of the Cat valve and seat, increasing the contact area and improving the distribution of forces, resulting in reduced material fatigue, Cat said. The flow area is increased by balancing the pressure drop across the Cat valves, reducing flow restrictions and the potential for cavitation. Additionally, impact forces are reduced as the contact area between valve and seat has nearly doubled from previous designs. Caterpillar manufacturers a line of pressure pumps with maximum inputs ranging from 600 to 3000 bhp (447 to 2237 kW). The new valves and seats can be ordered from the global Cat dealer network.