Evaluating the influence of coir fibres on solar still efficiency and economic viabilityN. Rajiv Kumar, S. Seenivasan, P. Hemalatha, Kode Jaya Prakash, P. Pitchandi, R.D. Sathiya and R. GirimuruganE3S Web Conf., 455 (2023) 02004DOI: https://doi.org/10.1051/e3sconf/202345502004