Editorial: Variable refrigerant flow technology
نویسندگان
چکیده
منابع مشابه
Distributed Extremum Seeking Control for a Variable Refrigerant Flow System
The variable refrigerant flow (VRF) system features the regulation of refrigerant flow to achieve individualized heating and cooling for multi-zone operation. However, such flexibility in configuration presents large variations in system characteristics and thermal loads. Performance of model based control and optimization would thus be limited. The extremum seeking control (ESC) has recently b...
متن کاملFault diagnosis of refrigerant charge based on PCA and decision tree for variable refrigerant flow systems
Variable refrigerant flow (VRF) systems are easily subjected to performance degradation due to refrigerant leakage, mechanical failure or improper maintenance after years of operation. Ideal VRF systems should equip with fault detection and diagnosis (FDD) program to sustain its normal operation. This paper presents the fault diagnosis method for refrigerant charge faults of variable refrigeran...
متن کاملModel Predictive Control of Variable Refrigerant Flow Systems
Model Predictive Control (MPC) of vapor compression systems (VCSs) offers several advantages over conventional control methods (such as multivariable process control with selector logic) in terms of 1) the resulting closed-loop performance and 2) the control engineering design process. VCSs are multivariable systems and feature constraints on system variables and actuators that must be enforced...
متن کاملTransient Modeling of Two-stage and Variable Refrigerant Flow Vapor Compression Systems with Frosting and Defrosting
Title of Dissertation: TRANSIENT MODELING OF TWO-STAGE AND VARIABLE REFRIGERANT FLOW VAPOR COMPRESSION SYSTEMS WITH FROSTING AND DEFROSTING Hongtao Qiao Doctor of Philosophy, 2014 Dissertation Directed By: Reinhard Radermacher, Professor Department of Mechanical Engineering This thesis presents the development of an advanced modeling framework for the transient simulation of vapor compression s...
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ژورنال
عنوان ژورنال: Science and Technology for the Built Environment
سال: 2015
ISSN: 2374-4731,2374-474X
DOI: 10.1080/19342039.2015.1084175