1. The opposite surface of slab Aand B are maintained at 100degree and 70degree respectively if the steel plate measures 10cm thick estimate the heat transfer recorded by thermo couple embedded 3cm from phase A(assume conductivity of metal sheet is 55w/mdegree
2. An ashing furnace is constructed with 20cm of brick ,0.1m of insulating brick and 5cm of abestors sheet.Estimate the heat lost per unit surface area of the furbace wall s the wall (thermal conductivity of brick is 1.4w/mdegree/10 and 0.17w/mdegree