TY - JOUR TI - Economic and environmental impacts of thermal insulation used in different duct sizes AU - Kumar, D. AU - Kumar, S. AU - Bhayo, B.A. AU - Harijan, K. AU - Uqali, M.A. JO - Journal of Thermal Engineering PY - 2020 VL - 6 SP - 141 EP - 156 DO - 10.18186/thermal.672085 ER -