SimpleFill Gas Pressurization Device
A reliable compact device for efficiently compressing natural gas fuel for automobiles
Compressed gas is useful in a number of different applications such as propulsion in vehicles. The global Compressed Natural Gas (CNG) market was valued at $14.8 billion in 2016, and is projected to reach $36 billion by 2023, growing at a CAGR of 14.1%. Furthermore, the Natural Gas Vehicle market size was valued at $17.1 billion in 2019 and is projected to reach $28.7 billion by 2027, growing at a CAGR of 6.9%. However, current approaches to compress the natural gas include using direct mechanical compression, a system that can be expensive as well as difficult to repair and maintain. Given the profitability of these sectors, a need exists to find more cost effective, reliable and manageable solutions for compressing natural gas.
Researchers at The Ohio State University’s Center for Automotive Research, led by co-inventor Dr. Fabio Chiara, have developed a new method of compressing gas. The Simple-Fill system is based on the concept of using a liquid piston compressor. A pressurized functional liquid is inducted inside a compression chamber, where gas has been previously admitted. The raising “liquid piston” compresses the gas inside the compression chamber while concurrently providing a cooling action and, as needed, a dehydration function. The first application of the technology is for compression of natural gas for vehicular refueling (CNG), even though several other applications are envisioned for compression of industrial gases.
● Filling stations for CNG vehicles returning to centrally located base
● CNG consumer vehicle filing stations
● Rapid, high pressure compression of gasses other than CNG
● Up to 30% reduction of lifecycle costs of ownership if compared to conventional CNG vehicles refueling stations of similar size
● Easier system to repair and maintain than direct mechanical compression, due to the absence of costly moving parts inside the compression chamber and the use of heavy duty, commercially available fluid power components
● The compression liquid provides a dehydration action to the CNG, eliminating the need for expensive additional dehydration systems and allowing for overall cost and complexity reduction
● Process can be divided in multiple stages to increase efficiency and reduce energy consumption and it can be made modular to suit different applications, gas discharge capacity and peak delivery pressures