process is [Teoh and Chung, 2009, Alcheikhhamdon et al., 2015](4): 1. Low permeate flow rate. 2. Membrane fouling and membrane pore wetting 3. Long term performance. 4. Uncertain economics and energy costs. 5. Mass transfer resistance due to trapped air in the membrane which reduces permeates flux. 6. Low membrane lifetime. 1.4 Application of membrane distillation According to [El-Bourawi et al., 2006, Zhang, 2001] membrane distillation has been applied for: 1. Large range of desalination and
plans must be approved for meeting the standards set out in the SAB regulations (Botes, 2011). The intention of the regulations is to ensure that buildings are built to be more energy efficient by designing them to be well insulated, more resistant to air leakage via windows, doors and ceilings with weak seals. This makes a building more efficient with regards to wastefully using energy to heat and cool (Mnguni & Tucker, n.d.). These areas of design are instrumental in creating an energy efficient building