Atiz, AyhanKarakilcik, HaticeKarakilcik, Mehmet2026-01-242026-01-24202197815361935659781536193206https://hdl.handle.net/20.500.12868/4750In this chapter, water heating performance of evacuated tube solar collectors (ETSCs) which harvesting solar radiation is investigated. It is aimed to produce electricity and hydrogen with the hot water obtained. For this purpose, water from the geothermal source is pumped to the ETSCs to obtain water at sufficient temperature faster. Thus, a considerable amount of electrical energy is generated by the organic Rankine cycle (ORC) that is operated using water heated by solar radiation. N-butane and isobutane are considered as a working fluid in the ORC and it is found that the performance of n-butane is higher than isobutane. While hydrogen was produced with the electrical energy produced by the ORC, space heating was performed for mushroom production by using the waste heat in the system. Energy and exergy analyses of the system were carried out by utilizing the Engineering Equation Solver (EES) software. As a result, it is observed that under solar radiation, ETSCs can produce hot water at a temperature that will operate ORC and a significant amount of hydrogen can be produced. © 2021 Nova Science Publishers, Inc. All rights reserved.eninfo:eu-repo/semantics/closedAccessBook Chapter1772022-s2.0-85107588268N/A