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Title: Improving chiller performance and energy efficiency in hydrogen station operation by tuning the auxiliary cooling

Journal Article · · International Journal of Hydrogen Energy
ORCiD logo [1];  [2];  [2];  [1]
  1. University of Calabria, Cosenza (Italy)
  2. California State Univ. (CalState), Los Angeles, CA (United States). Hydrogen Research and Fueling Facility

In a hydrogen station that operates with direct fueling through the use of a 700 bar boost compressor, the outlet hydrogen temperature can significantly increase, stressing the chiller system. Here, this paper evaluates improvements that can be made to the auxiliary cooling system integrated with the compressor. Both theoretical modeling and experiments were performed at Cal State LA Hydrogen Research and Fueling Facility. The findings suggest that adjusting the auxiliary closed-loop cooling system from 15 °C to 10 °C reduced the station energy consumption and decreased the demand on the station chiller that needed to provide –20 °C hydrogen at the hose. The overall energy consumption for a single fueling reduced by between 2.86 and 9.43% for the set of experiments conducted. After the temperature of the closed-loop cooling system was reduced by 5 °C, the boost compressor outlet temperature dropped from 46-50 °C–40 °C and consequently at the hose the hydrogen temperature declined by 3 °C. Results were scaled up with a forecast on the number of daily refueling events. With a low number of daily fuelings, the proposed set-up showed a minor influence on the overall station energy consumption. However, the benefits were more pronounced for a connector station with sales at 180 kg/day, where the energy efficiency improved by between 1.4 and 5.5%, and even more so for a higher capacity station at 360 kg/day, where the improvement was between 2.9 and 8%.

Research Organization:
California State Univ. (CalState), Long Beach, CA (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE); National Science Foundation (NSF); European Union (EU); Italian Ministry of Education, University and Research (MIUR)
Grant/Contract Number:
EE0005890; NSF1547723; PON RI 2014–2020
OSTI ID:
1977204
Journal Information:
International Journal of Hydrogen Energy, Vol. 47, Issue 4; ISSN 0360-3199
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

References (44)

Retail Hydrogen Station Reliability Status and Advances journal January 2020
A hybrid power-unit based on a passive fuel cell/battery system for lightweight vehicles journal December 2020
Assuring pulsation-free flow in a directly pressurized fuel delivery at a retail hydrogen station journal August 2018
Estimation of final hydrogen temperature from refueling parameters journal March 2017
Investigation of the Environmentally-Friendly Refrigerant R152a for Air Conditioning Purposes journal December 2018
Research frontiers in sustainable development of energy, water and environment systems in a time of climate crisis journal November 2019
Two-tier pressure consolidation operation method for hydrogen refueling station cost reduction journal February 2018
A review on coupling Green sources to Green storage (G2G): Case study on solar-hydrogen coupling journal August 2021
Determining hydrogen pre-cooling temperature from refueling parameters journal September 2016
Empirically verified analysis of dual pre-cooling system for hydrogen refuelling station journal January 2021
Optimization of hydrogen vehicle refuelling requirements journal May 2017
Optimization of the overall energy consumption in cascade fueling stations for hydrogen vehicles journal January 2014
Long-term production technology mix of alternative fuels for road transport: A focus on Spain journal December 2020
Review of the current technologies and performances of hydrogen compression for stationary and automotive applications journal March 2019
Refueling-station costs for metal hydride storage tanks on board hydrogen fuel cell vehicles journal November 2019
Experimental correlations and integration of gas boosters in a hydrogen refueling station journal June 2020
Effect of precooled inlet gas temperature and mass flow rate on final state of charge during hydrogen vehicle refueling journal April 2015
Energetic evaluation of hydrogen refueling stations with liquid or gaseous stored hydrogen journal March 2019
Dynamic operation and feasibility study of a self-sustainable hydrogen fueling station using renewable energy sources journal March 2015
Exergoeconomic optimization of coaxial tube evaporators for cooling of high pressure gaseous hydrogen during vehicle fuelling journal September 2014
Hydrogen in energy transition: A review journal March 2021
Demonstration of the operation and performance of a pressurised alkaline electrolyser operating in the hydrogen fuelling station in Porsgrunn, Norway journal April 2015
Prediction of transient temperature of hydrogen flowing from pre-cooler of refueling station to inlet of vehicle tank journal January 2018
Field Validation of the MC Default Fill Hydrogen Fueling Protocol journal April 2015
Optimisation of a hydrogen production – storage – re-powering system participating in electricity and transportation markets. A case study for Denmark journal May 2020
Optimal design of a Hydrogen Refuelling Station (HRFS) powered by Hybrid Power System journal April 2018
Techno-economic and thermodynamic analysis of pre-cooling systems at gaseous hydrogen refueling stations journal December 2017
Hydrogen and ethanol: Production, storage, and transportation journal August 2021
Manufacturing competitiveness analysis for hydrogen refueling stations journal April 2019
Effect of cascade storage system topology on the cooling energy consumption in fueling stations for hydrogen vehicles journal March 2018
Impact of hydrogen refueling configurations and market parameters on the refueling cost of hydrogen journal August 2017
Hydrogen Fueling Standardization- Enabling FCEVs with Fast Fueling and Consistent Vehicle Range Equal to Today journal January 2015
Techno-economic analysis of conventional and advanced high-pressure tube trailer configurations for compressed hydrogen gas transportation and refueling journal March 2018
Hydrogen losses in fueling station operation journal March 2020
Numerical simulations of the energy performance of a PEM water electrolysis based high-pressure hydrogen refueling station journal October 2020
Investigating the technical feasibility of various energy carriers for alternative and sustainable overseas energy transport scenarios journal April 2020
Heat transfer analysis of liquid piston compressor for hydrogen applications journal September 2015
Modelling and optimisation of a hydrogen-based energy storage system in an autonomous electrical network journal October 2018
Impact of hydrogen SAE J2601 fueling methods on fueling time of light-duty fuel cell electric vehicles journal June 2017
Comparative techno-economic study of solar energy integrated hydrogen supply pathways for hydrogen refueling stations in China journal November 2020
Trends in design of distributed energy systems using hydrogen as energy vector: A systematic literature review journal April 2019
Techno-economic modelling and analysis of hydrogen fuelling stations journal January 2019
Development of a Hydrogen Refueling Station Design Tool journal January 2020
Thermodynamic analysis of natural gas reciprocating compressors based on real and ideal gas models journal August 2015