Effects Of Heat Transfer Between Adjacent Units On Household Heat Metering

As the development of the society,nowadays,energy resources are becoming scarcer and scarcer , which leads to the dramatic increase of the resources.Accordingly,the resource wastage is also improving day after day.In our country,one of the most energy wastage is the structure wastage,and thus,the door-by-door measurable heating approach is important for consumers to saving energy actively.After measurable heating system is applied,people will then turn down or turn off the adjuster,when they are going to leave and they will turn up or turn on it when back,so that an active adjusting system will be established and the power resource will be largely saved.Door-by-door measurable heating system satisfies the customers'requirements on adjusting the indoor temperature actively and saving power.The randomicity of the consumers'adjustments cause the total flux varies randomly.Therefore,this system is typically a variable flux system,one of the non-steady systems.Compared with traditional heating system,the instantaneous heat load of this system is not only related to the outdoor temperature,but also to the differences between the neighboring rooms caused by consumers'adjustments.These variables will affect the whole system,make it difficult to keep the heat load steadily in one room and thus will cause the discomfort.As a result,in order to improve the indoor temperature quickly under the influences by these disturbing variables,the thesis analyzes the influence on the whole heating system of these disturbing variables and obtains the disadvantage conditions (the unknown rooms).Moreover,it also provides some advice facing to the disadvantage conditions in order to make a basis on the application of the measurable heating system. This thesis models a multi-dimensional and dynamic heating system by using selecting state-space method and thermal capacity particle method,analyzes form single customer to the whole structure under the influences by disturbing variables . obtains the disadvantage conditions , and further analyzes the configuration of load accessional ratio facing to disadvantages.Such that,it can instruct the design of measurable heating system and moreover, can adapt the load fluctuations. Therefore,the customers can get a satisfied feedback on comfort,their enthusiasm to saving power can be activated and the conception of"saving power structure"is satisfied.The thesis uses MATLAB to write the control program.Due to its power in calculation and plotting,its flexibility in the flow of programming,its large and reliable algorithms library and its compact but effective language.Matlab has become to be a standard in mathematical calculation.Matlab integrates the mathematical and engineering calculation,visualization, picture processing and multimedia processing,and also provides the design method based on Windows graphical interfaces,which provides a contact and fast approach to simulate and analyze.