MUKUNA, Jean Gad; GRYZAGORIDIS, Jasson. The effect of different working fluids and internal geometries on the efficiency of evacuated tube heat pipe solar collectors. Journal of Energy in Southern Africa, [S. l.], v. 31, n. 4, p. 16–25, 2020. DOI: 10.17159/2413-3051/2020/v31i4a8480. Disponível em: https://energyjournal.africa/article/view/8480. Acesso em: 22 apr. 2025.