1)   1D Heat Transfer 2.1 The 1D Heat Transfer software is used for to study one-dimensional heat transfer (steady and unsteady states). It can be used for the geometries: wall, Lx = width; long cylinder, Lx = length; sphere, Lx = R/3 and semi-infinite wall. 2)   ComfortAir HVAC Software 4.0 ComfortAir HVAC software is designed to be used by engineers, architects, contractors and energy auditors for calculating and analysing heating and air conditioning hourly loads in all types of buildings. Units can be set to English or Metric. 3)   Shell and Tube Heat Exchanger Design 1.4.1 Easy to use software demonstrates the chemical design calculations of Shell and Tube Heat Exchangers.Unlike other tools, ensures that calculations are performed step by step to help in understanding the design calculations...etc 4)   Gasketed Plate Heat Exchanger Design (PH 2.0.1 PHex is an easy to use tool which domonstrates the thermal calculations of Gasketed Plate Heat Exchangers