Air Conditioning System
Approach Research of Sensor Fault Detection and Diagnosis in HVAC System
With HVAC systems’extensive applications and great improvements, the control systems of which have become more and more complicated. Business offices, industry factories, and even civil residential, that are all in increasingly demands of better stability, comfortable and energy saving of HVAC systems. It’s beyond operators’ ability to immediately detect and diagnose all faults in HVAC [...]
Study on Diagnosing Energy Use of Air Conditioning Systems in Public Buildings
With economic development and social progress, public buildings increase gradually in size and number. Air conditioning systems use a great portion of energy used in public buildings, diagnosing operation of an air conditioning system in a public building will find wastes of energy and increase efficiency of energy use, this will be helpful to building [...]
Study on Air Supply System and Air Distribution of 250 km/h Electric Multiple Units Cushioned Sleeping Berth Car
With the speed promotion on large railway areas, the train speed has been improved and the electric multiple unit (EMU) has been widely used in railway transportation. 250km/h EMU cushioned sleeping berth car is improved and developed on the basis of the seating car. Compared with the seating car, in order to meet the needs [...]
The Engineer Study in Lake Water Source Heat Pump Air Conditioning System of Shan Bei Administrative Building of Fuzhou University
Water source heat pump is from surface water, groundwater extraction shallow geothermal heating of buildings or to heat buildings in the release of these media. In summer, water source heat pump air conditioning system will be transferred to heat the building in the water, because water temperature is low, so you can efficiently remove heat. [...]
Study Numerical Simulation of Air Distribution and Air Quality Evaluation in Air-Conditioned Office
Choose the right organizational form of airflow to determine the evaluation of good and bad effects of air distribution methods, and how to improve the energy efficiency of air forms of organization and others are air-conditioned air distribution design problems. In response to this situation, papers to office as the research object, the computational fluid [...]
Dynamic Simulation of Operation and Control on the Central Air-conditioning System
In this paper, the MATLAB software is introduced to simulate the operation and control of a central air-conditioning system of a department store in Baoding city. Firstly, the mathematical models and the simulation models of various parts on the central air-conditioning system of the department store are established; then, four energy-saving operation strategies are put [...]
Research on the Auxiliary Troubleshooting and Virtual Maintenance Training of Aircraft Air-conditioning System – Based on Component-level Modeling and Fault Sim
In the various systems of modern aircraft, air-conditioning system plays an important role in the aspects of ensuring the safety of crew, passengers, structures and equipments at a high altitude. Once it fails, the consequences will be very serious. So the maintenance and support work of aircraft air-conditioning system was supported by a high degree [...]
Analysis of Economical Measures for Central Air-Conditioning System
With the development of social economy, people’s living standard and fast urbanization, the volume of urban construction is increasing. Large amount of social energy consumption caused by the construction of high energy consumption buildings is increasing significantly each year. As we all know, people need more comfortable place to live in, therefore, the number of [...]
Thermodynamic Analysis and Optimization for Air Conditioning Systems
With the development of the air conditioning energy consumption in building energy consumption in increasing proportion, the research of energy-saving air conditioning system becomes more and more pressing. At present, research on energy saving air-conditioning systems remains in the first law of thermodynamics and second law of thermodynamics basis. This method often leads to the [...]
Research on Air-conditioning System Fault Prediction and Diagnosis
With the development of the world economy, the energy consumption are getting higher and higher, and the energy quantity demands of the world increase with about 2% growth rate annually, and this growth rate is over 5% per year in China, Thailand, Malaysia and Singapore. In recent years, due to the energy and environmental problems [...]