A study on survey and evaluation system of thermal environment in houses (2)

Abstract

This study aims to develop a personal computer based system to conduct a series of the following procedures. 1. Evaluation of thermal comfortableness based on the measurement of indoor thermal environment 2. Economical evaluation of energy based on estimated annual air-conditioning load 3. Picking up the related problems 4. Investigation of the measures to improve the problems Main contents of the study are as follows: (1) Preparation of Standard for Environmental Evaluation Based on Conditions for Thermal Comfortableness A computer program was prepared to calculate the value of PMV and the values were calculated for various combinations of different volume of clothing and environmental conditions. Based on the results, we developed and proposed a standard for the most desirable values and.5 stages of evaluation of indoor temperature, MRT, humidity and air stream for every season. (2) Development of Estimation Method of Energy Consumed for Air-Conditioning Based on the data of standard weather, we picked up the date representing the load for every period and developed and proposed a method to estimate the annual air-conditioning load by calculation of only a few days. The above mentioned method was developed based on the weather data in eight cities in Japan. Comparison of calculation accuracy was conducted with response factor method by a model calculation and good accuracy of load calculation was obtained for every city. (3) Investigation of Distribution of Indoor Temperature under Heating Distribution of indoor temperature at the time of heating has much to do with indoor comfortableness and formation of dews. Investigation was made in the study on the forming of distribution of indoor temperature through model experiments and numerical simulation. We developed a program based on the results to estimate room temperature, distribution of PMV values and places of dew formation for the houses under the survey.