Demonstration and laboratory complex for the production of heat energy using sources of unconventional and waste energyL.V. Plotnikova, A.A. Faizullin, A.S. Gavrilov and N.M. HacıbalayevE3S Web Conf., 124 (2019) 05036DOI: https://doi.org/10.1051/e3sconf/201912405036