Pujari, Ankush Shankar and Majumdar, Rudrodip and Subramaniam, Chandramouli and Saha, Sandip K
(2025)
Techno-Economic analysis of solar thermal seasonal thermochemical storage for Indian Himalayan cities.
Applied Thermal Engineering, 269.
Full text not available from this repository.
| Abstract: |
Thermochemical reactor-based seasonal energy storage is a promising technology that ensures reliable and sustainable space heating in the challenging remote locations of the Indian Himalayan Region. However, the deployment of such solutions is currently at the nascent stage owing to a lack of application-specific techno-economic analysis. In this study, a modular radial flow annular reactor using the strontium bromide hexahydrate-monohydrate conversion reaction is designed for long-term energy storage, and performance analysis is conducted for eight cities from the Indian Himalayan Region, each with distinct meteorological characteristics, to evaluate the system’s suitability. A fixed-sized room is chosen as the representative conditioned space to evaluate heating demands using a building simulation model. The City of Leh in the Greater Himalayas exhibits the highest heating demand of 7824 kWh annually, paired with the highest solar irradiance of ∼2100 kWh/m2. The numerical model developed for simulating the reactor is validated against a small-scale reactor setup and is used further for hourly performance analysis. The year-long charging and discharging efficiencies are nearly location-independent, with consistent values of ∼35 % and ∼74 %, respectively. The system configuration with direct solar heating capabilities exhibits better overall system efficiency and economic feasibility, with the levelized cost of heating in the range of INR 33–51/kWh. The heating cost is higher than that of conventional electric systems but is competitive with diesel-based heating (>INR 40/kWh). The higher system utilization in Leh leads to the lowest levelized costs of heating (INR 31/kWh) and CO2 avoidance (INR 29,093 /mtCO2). The comprehensive multi-location analysis provides key insights regarding the applicability and viability of the proposed systems for space heating in remote regions. |
| Item Type: |
Journal Paper
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| Subjects: |
School of Natural and Engineering Sciences > Energy and Environment |
| Divisions: |
Schools > Natural Sciences and Engineering |
| Date Deposited: |
12 Mar 2025 09:24 |
| Last Modified: |
12 Mar 2025 09:24 |
| Official URL: |
https://www.sciencedirect.com/science/article/abs/... |
| Related URLs: |
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| Funders: |
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| Projects: |
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| DOI: |
https://doi.org/10.1016/j.applthermaleng.2025.126090 |
| URI: |
http://eprints.nias.res.in/id/eprint/2883 |
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