[5] A. Mathur, Mathur S., Agrawal G., Mathur J., Comparative study of straight and spiral earth air tunnel heat exchanger system operated in cooling and heating modes, Renewable Energy, Vol., pp. 474-87, 2017.
[6] J. Xamán, Hernández-Pérez I., Arce J., Álvarez G., Ramírez-Dávila L., Noh-Pat F., Numerical study of earth-to-air heat exchanger: The effect of thermal insulation, Energy and Buildings, Vol., pp. 356-61, 2014.
[7] G. Gan, Simulation of dynamic interactions of the earth–air heat exchanger with soil and atmosphere for preheating of ventilation air, Applied energy, Vol., pp. 118-32, 2015.
[8] N. A. Elminshawy, Siddiqui F. R., Farooq Q. U., Addas M. F., Experimental investigation on the performance of earth-air pipe heat exchanger for different soil compaction levels, Applied Thermal Engineering, Vol., pp. 1319-27, 2017.
[9] J. Vaz, Sattler M. A., Brum R. d. S., dos Santos E. D., Isoldi L. A., An experimental study on the use of Earth-Air Heat Exchangers (EAHE), Energy and Buildings, Vol., pp. 122-31, 2014.
[10] J. Vaz, Sattler M. A., dos Santos E. D., Isoldi L. A., Experimental and numerical analysis of an earth–air heat exchanger, Energy and Buildings, Vol., pp. 2476-82, 2011.
[11] L. Ramírez-Dávila, Xamán J., Arce J., Álvarez G., Hernández-Pérez I., Numerical study of earth-to-air heat exchanger for three different climates, Energy and Buildings, Vol., pp. 238-48, 2014.
[12] F. Fazlikhani, Goudarzi H., Solgi E., Numerical analysis of the efficiency of earth to air heat exchange systems in cold and hot-arid climates, Energy Conversion and Management, Vol., pp. 78-89, 2017.