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Practical Experiences from the USE of a Method for Active Functional Tests and Optimization of Coil Energy Recovery Loop Systems in AHUs
A method, based on simulation models, for active functional tests and optimization of coil energy recovery loop systems in Air Handling Units (AHUs) have been developed and a first version implemented in the program Engineering Equation Solver (EES). The heat recovery in this kind of systems is often much lower than expected. The main reason for the poor efficiency is faulty fluid flow in the recovery loop. The efficiency can in many cases be raised by tenths of units of percentage. This paper describes experiences from one example of use of the EES based tool in practice, to determine the correct fluid flow. Also, there is a discussion about the measurements in respect of needed accuracy and other related questions.
Eriksson, J. (2004). Practical Experiences from the USE of a Method for Active Functional Tests and Optimization of Coil Energy Recovery Loop Systems in AHUs. Energy Systems Laboratory (http://esl.tamu.edu); Texas A&M University (http://www.tamu.edu). Available electronically from