@conference {170842,
	title = {Mathematical Modeling and Simulation of Heat Pipe Evacuated Tube Solar Thermal Collectors},
	booktitle = {, AIAA_JPC, AIAA-2019-4321},
	year = {2019},
	month = {22nd August 2019},
	address = {Indianapolis,USA},
	author = {Ahmed Farag and Essam E. Khalil}
}
