Patent Document ID: 20040083012
Application ID: 10281766
Patent Flag: 0

Claim One:
1. A method of modeling a heat exchanger comprising the steps of: a) identifying a heat exchanger; b) acquiring a plurality of heat exchanger parameters for the heat exchanger; c) assigning input temperatures, the input temperatures comprising a hot water input temperature and a cold water input temperature; d) assigning a first set of flow rates, the first set of flow rates comprising a first hot water flow rate and a first cold water flow rate; e) inputting the first set of flow rates, the input temperatures, and a set of assumed output temperatures into a set of equations arranged to obtain a heat transfer coefficient, the set of assumed output temperatures comprising a hot water output temperature and a cold water output temperature, and calculating a first heat transfer coefficient; f) inputting the heat exchanger parameters, the first set of flow rates, the first heat transfer coefficient, and the input temperatures into a set of equations arranged to calculate a set of output temperatures, the output temperatures comprising a first hot water output temperature and a first cold water output temperature, and calculating the first set of output temperatures; g) inputting the first set of output temperatures into the set of equations arranged to calculate the heat transfer coefficient, and calculating a second heat transfer coefficient; h) inputting the second heat transfer coefficient value into the set of equations arranged to obtain the output temperatures, and calculating a revised set of output temperatures; and i) determining a first variance between the first set of output temperatures and the revised set of output temperatures.