Design optimization of a multi-temperature solar thermal heating system for an industrial process

A. Allouhi, Y. Agrouaz, Mohammed Benzakour Amine, S. Rehman, M.S. Buker, T. Kousksou, A. Jamil and A. Benbassou

Applied Energy, 2017, vol. 206, issue C, 382-392

Abstract: Presently, great challenges are being faced by the industrial sector in terms of energy management and environmental protection. Utilization of solar energy to meet a portion of heat demand in various industries constitutes tremendous economic opportunities for developing countries such as Morocco. Therefore, this paper introduces an optimization procedure and simulation of a centralized solar heating system providing hot water to four processes with different temperature levels and load profiles. Asa case study, a Casablanca based Moroccan milk processing company is evaluated and the life cycle cost method is practiced to select the optimal size of the main design parameters for decision-making. It was found that 400m2 of evacuated tube collectors tilted at an angle of 30° and connected to a 2000l storage tank can lead to a maximum life cycle saving cost of 179kUSD for a total annual heat demand of 528.23MWh. In this optimal configuration, the overall annual solar fraction is found to be 41% and the payback period of 12.27years attained. The system has the potential to reduce around 77.23tons of CO2 equivalents of greenhouse gas emissions annually. The economic competitiveness of the solar thermal heating plant can be considerably improved with higher inflation rates and lower initial investments.

Keywords: Solar energy; Optimization; Life-cycle savings; Industrial process; CO2 emissions (search for similar items in EconPapers)
Date: 2017
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (23)

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DOI: 10.1016/j.apenergy.2017.08.196

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