Modeling of a New Structure of Precision Air Conditioning System Using Secondary Condenser for Rh Regulation
| Main Authors: | Subiantoro, Aries, Nasruddin, Nasruddin, Yusivar, Feri, Al-Hamid, Muhammad Idrus, Budiardjo, Bagio |
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| Format: | Book application/pdf Journal |
| Terbitan: |
UI Scholars Hub
, 2012
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| Subjects: | |
| Online Access: |
https://scholarhub.ui.ac.id/mjt/vol16/iss1/11 https://scholarhub.ui.ac.id/cgi/viewcontent.cgi?article=1199&context=mjt |
Daftar Isi:
- A dynamic mathematical model for a new structure of precision air conditioning (PAC) has been developed. The proposed PAC uses an additional secondary condenser for relative humidity regulation compared to a basic refrigeration system. The work mechanism for this system and a vapour-compression cycle process of the system are illustrated using psychrometric chart and pressure-enthalpy diagram. A non-linear system model is derived based on the conservation of mass and energy balance principles and then linearized at steady state operating point for developing a 8th-order state space model suited for multivariable controller design. The quality of linearized model is analyzed in terms of transient response, controllability, observability, and interaction between input-output variables. The developed model is verified through simulation showing its ability for imitating the nonlinear behavior and the interaction of input-output variables.