Environmental impact assessment of nuclear assisted hydrogen production via Cu–Cl thermochemical cycles
| Autor: | Ahmet Ozbilen, Marc A. Rosen, Ibrahim Dincer |
|---|---|
| Rok vydání: | 2013 |
| Předmět: |
Waste management
Hydrogen Renewable Energy Sustainability and the Environment business.industry Geography Planning and Development chemistry.chemical_element Transportation Plant efficiency chemistry Environmental chemistry Thermal Environmental science Water splitting Environmental impact assessment Thermochemical cycle business Thermal energy Civil and Structural Engineering Hydrogen production |
| Zdroj: | Sustainable Cities and Society. 7:16-24 |
| ISSN: | 2210-6707 |
| DOI: | 10.1016/j.scs.2012.09.003 |
| Popis: | The variation of environmental impacts with the efficiency of a hydrogen plant and the thermal output of a nuclear plant are studied for nuclear-based hydrogen production using three-, four- and five-step Cu–Cl cycles for thermochemical water splitting (TWS). Results are presented, on the basis of 1 kg hydrogen production, for two impact categories: global warming potential (GWP) and acidification potential (AP). Environmental impacts are evaluated with several approaches. First, environmental effects are calculated by varying the thermal output ratio, which represents the thermal energy used in Cu–Cl cycle divided by the total thermal energy output of nuclear plant, from 0.1 to 1. The results show that GWP can be decreased from 3.32 to 0.346 kg CO2-eq for the five-step cycle. Second, the hydrogen plant efficiency is altered from 0.34 to 0.65 to examine the corresponding change in environmental impacts. Increasing the hydrogen plant efficiency to 0.65 decreases the GWP to 0.4 kg CO2-eq and the AP to 2.1 × 10−3 kg SO2-eq. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect