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ASHRAE LV-11-C006
Proportional-Integral-Plus (PIP) Control System for Individual Thermal Zones in a Small Ventilated Space
Year: 2011
Abstract: Abstract
One of the main goals of ventilation is to create a favorable thermal condition inside a compartment. The efficiency of a ventilation system to achieve this goal depends on many factors such as: air flow rate, incoming air temperature, air flow pattern etc. For this purpose, there is need for a control system which can provide proper inlet conditions resulting the required output at a specific location. The main objective of this paper is to examine the possibility to control the temperature in a ventilated chamber in different spatial regions individually. Twenty two-dimensional spatially fixed and equal square cells in a small ventilated test chamber (0.70×0.65×0.4 m; 27.56"×25.60"×15.75") were used. Step inputs in ventilation rate and inlet air temperature are applied and temperature responses at 30 sensor locations are recorded. First order transfer function data-based models are identified for modeling the dynamic behavior of temperature in each of the 20 cells. A Proportional-Integral-Plus PIP control system is designed based on the identified models to control the temperature in each of the 20 cells individually.
One of the main goals of ventilation is to create a favorable thermal condition inside a compartment. The efficiency of a ventilation system to achieve this goal depends on many factors such as: air flow rate, incoming air temperature, air flow pattern etc. For this purpose, there is need for a control system which can provide proper inlet conditions resulting the required output at a specific location. The main objective of this paper is to examine the possibility to control the temperature in a ventilated chamber in different spatial regions individually. Twenty two-dimensional spatially fixed and equal square cells in a small ventilated test chamber (0.70×0.65×0.4 m; 27.56"×25.60"×15.75") were used. Step inputs in ventilation rate and inlet air temperature are applied and temperature responses at 30 sensor locations are recorded. First order transfer function data-based models are identified for modeling the dynamic behavior of temperature in each of the 20 cells. A Proportional-Integral-Plus PIP control system is designed based on the identified models to control the temperature in each of the 20 cells individually.
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ASHRAE LV-11-C006
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| contributor author | ASHRAE - American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. | |
| date accessioned | 2017-09-04T18:49:08Z | |
| date available | 2017-09-04T18:49:08Z | |
| date copyright | 01/01/2011 | |
| date issued | 2011 | |
| identifier other | KQXTKEAAAAAAAAAA.pdf | |
| identifier uri | http://yse.yabesh.ir/std;query=autho162sear79D/handle/yse/230493 | |
| description abstract | Abstract One of the main goals of ventilation is to create a favorable thermal condition inside a compartment. The efficiency of a ventilation system to achieve this goal depends on many factors such as: air flow rate, incoming air temperature, air flow pattern etc. For this purpose, there is need for a control system which can provide proper inlet conditions resulting the required output at a specific location. The main objective of this paper is to examine the possibility to control the temperature in a ventilated chamber in different spatial regions individually. Twenty two-dimensional spatially fixed and equal square cells in a small ventilated test chamber (0.70×0.65×0.4 m; 27.56"×25.60"×15.75") were used. Step inputs in ventilation rate and inlet air temperature are applied and temperature responses at 30 sensor locations are recorded. First order transfer function data-based models are identified for modeling the dynamic behavior of temperature in each of the 20 cells. A Proportional-Integral-Plus PIP control system is designed based on the identified models to control the temperature in each of the 20 cells individually. | |
| language | English | |
| title | ASHRAE LV-11-C006 | num |
| title | Proportional-Integral-Plus (PIP) Control System for Individual Thermal Zones in a Small Ventilated Space | en |
| type | standard | |
| page | 9 | |
| status | Active | |
| tree | ASHRAE - American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc.:;2011 | |
| contenttype | fulltext |