Experimental study of ammonia flow boiling in a vertical tube bundle: part 3 – enhanced dimple tube with 2/3rd height solid round PVC nonconductive rod - Ayub, Zahid H; Abbas, Ahmad; Ismail, Tauseef; Ayub, Adnan; Wei, Li; Khan, Tariq S; Ribatski, Gherhardt (International Journal of Refrigeration, 2022)