If you are looking for a high-quality "proper text" version (not a low-quality scan), you can find it through the following legitimate channels: Official Digital Sample:
: Ameen's research, such as his 2005 work on VAV (Variable Air Volume) versus CAV (Constant Air Volume) systems in tropical countries, is often cited in papers on BUET's repository . Common Applications refrigeration+and+air+conditioning+by+ahmadul+ameen+pdf