Study On Energy Saving Of Room Temperature Adjustment Based On Human Comfort Analysis

In order to understand the influence of different heating stages and different heating modes on the adaptive thermal comfort of human body,this paper comprehensively considers the regional,seasonal and other factors,and selects the dormitory of university before and after heating in Shenyang area as the research object.Using the combination of field test and questionnaire survey,the indoor physical environment parameters were measured and subjective questionnaire was conducted on the subjects at the same time,which mainly included the following contents:First of all,the test research is divided into five research stages:before heating,heating prophaseand,heating medium,heating end and after heating.Test and study each of the five research phases,get the indoor environmental parameters and thermal sensation,thermal expectation,thermal comfort,wet sensation,cold and heat radiation effects and human body discomfort.By comparing the effects of different heating methods on the adaptive thermal comfort of human body,get the thermal sensation,heat expectation,thermal comfort and the overall environmental acceptability of the human body under different heating modes.Secondly,the linear models of indoor temperature and MTS,PMV in five research stages are established,the PMV model is modified,the correction coefficients of the five research stages are calculated,regression analysis of clothing thermal resistance,indoor temperature and outdoor temperature by statistical analysis method.,get the linear model.The range of indoor temperature acceptable to the subjects in five stages of research in Shenyang area was calculated by using the probabilistic thermal sensation method,and the expected temperature of the subjects in five stages of research in Shenyang area was obtained by direct inquiry method,and the thermal adaptation model was established.The results show that the indoor temperature of the dormitory in Shenyang is relatively high,and the actual neutral temperature in the five study stages is lower than the average indoor temperature in this stage.As far as Shenyang area is concerned,the influence of indoor temperature on clothing thermal resistance is greater than that of outdoor temperature on clothing thermal resistance.Due to human adaptability,the actual acceptable temperature range for subjects is wider than the recommended range of specifications.Finally,according to the current situation of heating in the north and the investigation data,the energy saving is calculated,and the relevant suggestions for heating are given.In the case of satisfying the thermal comfort of the human body,it is suggested that 90%of the subjects can accept the lower limit of temperature heating for heating,and at the same time,for different heating stages,heating on demand to avoid energy waste.