Hydrogen Economy Model for Nearly Net-Zero Cities with Exergy Rationale and Energy-Water Nexus

Download

index.pdf

Date

2018-05-01

Author

Kilkis, Birol
Kılkış, Şiir

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

143
views

75
downloads

The energy base of urban settlements requires greater integration of renewable energy sources. This study presents a "hydrogen city" model with two cycles at the district and building levels. The main cycle comprises of hydrogen gas production, hydrogen storage, and a hydrogen distribution network. The electrolysis of water is based on surplus power from wind turbines and third-generation solar photovoltaic thermal panels. Hydrogen is then used in central fuel cells to meet the power demand of urban infrastructure. Hydrogen-enriched biogas that is generated from city wastes supplements this approach. The second cycle is the hydrogen flow in each low-exergy building that is connected to the hydrogen distribution network to supply domestic fuel cells. Make-up water for fuel cells includes treated wastewater to complete an energy-water nexus. The analyses are supported by exergy-based evaluation metrics. The Rational Exergy Management Efficiency of the hydrogen city model can reach 0.80, which is above the value of conventional district energy systems, and represents related advantages for CO2 emission reductions. The option of incorporating low-enthalpy geothermal energy resources at about 80 degrees C to support the model is evaluated. The hydrogen city model is applied to a new settlement area with an expected 200,000 inhabitants to find that the proposed model can enable a nearly net-zero exergy district status. The results have implications for settlements using hydrogen energy towards meeting net-zero targets.

URI

https://hdl.handle.net/11511/94900

Journal

ENERGIES

DOI

https://doi.org/10.3390/en11051226

Collections

Graduate School of Natural and Applied Sciences, Article

Suggestions

OpenMETU
Core

Assessment of renewable energy based micro-grids for small communities Sadati, S.M. Sajed; Taylan, Onur; Sustainable Environment and Energy Systems (2016-7) Deploying renewable energy systems to supply electricity faces many challenges related to cost and variability of the renewable resources. One possible solution to these challenges is to hybridize renewable energy systems with conventional power systems and include energy storage systems. In this study, the feasibility analysis of two cases for electricity generation systems as (i) photovoltaic (PV)-battery-pumped hydro system (PHS) and (ii) PV-wind-battery are presented as a Renewable Energy Micro-Gr...
Sizing of Photovoltaic-Wind-Battery Hybrid System for a Mediterranean Island Community Based on Estimated and Measured Meteorological Data Sadati, S. M. Sajed; Jahani, Elham; Taylan, Onur; Baker, Derek Keıth (2018-02-01) Deploying renewable energy systems (RES) to supply electricity faces many challenges related to cost and the variability of the renewable resources. One possible solution to these challenges is to hybridize RES with conventional power systems and include energy storage units. In this study, the feasibility analysis of a grid-connected photovoltaic (PV)wind-battery hybrid system is presented as a microgrid for a university campus-scale community on a Mediterranean island. Models for PV and wind turbine syste...
Renewable Energy Sources: Current Perspectives and Future Prospects in Turkey Kök, Mustafa Verşan (2015-01-01) Renewable energy offers tremendous benefits for meeting global energy needs. Building on a foundation of hydropower, biomass combustion, and geothermal power pioneered during the industrial revolution, new forms of renewable energy began to be developed and commercialized, including solar, wind, and several forms of advanced bioenergy. Today, the global renewable power capacity has almost reached 200 GW and by 2030, the overall demand for energy resources is expected to almost double the current levels. And...
Numerical simulations of wind turbine wake interactions using actuator line and les models Önel, Hüseyin Can; Tuncer, İsmail Hakkı; Department of Aerospace Engineering (2019) Wind is one of the most promising renewable energy resources of the future. After years of optimization studies, Horizontal Axis Wind Turbines shine out as the most efficient type and have been the only model used in large scale commercial wind farms. Layout planning plays an important role in getting the most power out of a wind farm as much as turbine blade design. Most important parameter in this planning phase is the inevitable wake generated by rotors and its impact on other wind turbines which results...
Smart Solar Micro-grid Using ZigBee and Related Security Challenges Qadir, Zakria; Tafadzwa, Vincent; Rashid, Haroon; Batunlu, Canras (2018-11-02) Renewable energy is needed to preserve a sustainable environment. One particular form of renewable energy (solar energy) is one of the most important and cost-effective solutions to the energy crisis. In this study, efficient solar energy management using ZigBee technology shall he discussed. The system informs the user when solar panels produce excess power before supplying it to the surrounding users, thus making the supplier a prosumer instead of a consumer. GSM which is used to monitor energy usage over...

Citation Formats

B. Kilkis and Ş. Kılkış, “Hydrogen Economy Model for Nearly Net-Zero Cities with Exergy Rationale and Energy-Water Nexus,” ENERGIES, vol. 11, no. 5, pp. 0–0, 2018, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/94900.