| In this research, the waste heat emitted from two ovens and a boiler used in the investment casting manufacturing process by New Hampshire based Hitchiner Manufacturing Inc. Co. was determined. This was achieved with measured temperature and standard volume flow rate data gathered from the exhaust stacks using a thermal anemometer. Pressure in the stacks and density were also determined using a differential pressure transducer and combustion analyzer transducer, respectively. The thermal anemometer collected data continuously over a period of 1 week per stack. To support and protect the transducers during the experiments, tripods and enclosures were designed, fabricated and implemented. From the data, economic options to recover the waste heat were analyzed and one was recommended based on the return on investment periods. |
