The Field Simulation And Comfort Analysis Of A New Office And The Traditional Air-conditioning

Studies have shown that air conditioning energy consumption accounts for55%ofthe total energy consumption of buildings, accounts for about15%of the total societyenergy consumption. Air conditioning is used to achieve human comfort requirements,the traditional air conditioning not only wasted lots of energy in place where don’t needair condition, but also can’t meet all the requirements of comfort, some people even can’tfeel the effect of air conditioning.A new air supply mode is proposed in this paper: set up a terminal supply foreveryone. the supply just need meet one personal comfort requirements and less affectedon the surrounding or where don’t need air conditioning, so, compared with the traditionalair-conditioning, the new one save more energy; Each terminal supply can adjust airparameters, in order to meet someone’s best comfortable status; the terminal Supply canautomatically open and close the air supply after detecting that whether the workers leaveor not, that also save energy.Aiming to save energy and reach personal comfort, this paper had a study of interiorheat transfer model and heat transfer characteristics of indoors, used Airpak to simulatethe new supply mode and the traditional mode, it had analyzed and compared from theAngle of thermodynamics and the human body comfort between the two air supply ways.It also had sought the best air supply parameters for the new type air supply mode. Thetemperature distribution and velocity distribution are for energy analysis while usingPMV and PPD values to analysis comfort level. The simulation results show that:1. Traditional supply air flow is concentrated while the new way of supply air flowis relatively dispersed, traditional way supply air flow changes gently and uniformly,while the new way of air supply change is bigger, unequally.2. Compared with traditional air conditioning, the new air supply air conditioning isnot only more efficient, but also can satisfy the comfort level of all personnelrequirements;3. The optimum air supply parameters for optimum comfort is16℃and1.8m/s, but this parameters are not applicable to traditional ways.4. Air supply parameters of single can impact slowly on other people and the airdistribution of ambient, resistance of the diaphragm components affect the air flows inthe flow is relatively obvious, in order to increase energy conservation, chokescomponents like baffle plate and appropriately extended their size are needed.