The double-walled, hollow-channeled, rigid plastic structures are extensively used worldwide for covering agricultural and residential buildings for cooling and heating purposes. This book provides detailed analysis for the transport phenomena of solar radiation through these covers in two cases (i.e., empty or filled with liquid radiation filters). Methods for investigating the optical constants of liquid radiation filters and translucent covering materials were developed. Energy analysis for a greenhouse covered with these covers was established; different physical models were developed and...