The aim of this study is to create a database of the effective thermal insulation provided to thebody segments by various types of summer clothing (Rclei). In a climatic chamber with calmair conditions (v ? 0.15 m/s), Rclei was obtained for 52 garments and 97 ensembles. In themeasurements, a female thermal manikin that had twenty segments was arranged in a sittingposture.

The authors present a theoretical derivation of the WBGT formula for outdoor conditions that was originally developed from the results of experiments on human subjects, based on a heat balance equation between the human body and its outdoor environment. The three coefficients of wet bulb temperature Tw, globe temperature Tg, and air temperature Ta were expressed in almost the same way as in the indoor WBGT formula, but they contain a new element characterizing solar radiation.

The attitudes can reveal the hidden reasons behind the customer choices. Referred interviewstudies identified typical indoor environmental requirements of the residents and madeinternational comparison of the feedback from both young families and senior citizens.Good housing conditions have positive influence on people's wellbeing and they should bearchived without energy usage in vain. Even if most the elderly can manage well in nominalindoor air conditions, some of them might complain of draft or low room temperatures.

When dimensioning closed rooms according to the thermal sensation solving the relevantequations is necessary for a prediction of the PMV and for the determination of the surfacetemperature of clothing without using expensive simulation programmes in many cases, sincethey are not available for every designer.Thus we considered the drawing up of thermal comfort ranges as necessary plotting the PMVranges corresponding to the categories A, B and C of the general thermal comfort according tothe standard CR 1752.We have determined the terminating lines on both sides of the comfort range plotted f

Then main objective of this work is to create subsidies for an analysis of Predicted Mean Vote (PMV) from ISO 7730 (1994) and from the new version of the norm, from 2005, for thermal comfort evaluation in Brazilian workplaces. The furniture industry in the city of Itatiba, So Paulo State, in Brazil, was chosen for the study. A survey among the workers was carried out through questionnaires, collecting data about thermal sensation, clothing and workers activities. Dry and wet bulb temperatures, as well as globe temperatures were measured, simultaneously to the questionnaires.

In this study, a subjective experiment was conducted in a climatic chamber to clarify the effect of moderately hot environment on productivity, especially on the relationship between performance and fatigue. The climatic chamber was conditioned at operative temperature of 25.0C (insulation value of 0.93 clo), 28.0C (insulation value of 0.93 clo), and 28.0C (insulation value of 0.57 clo). Subjects were exposed in the environment for six hours. The performance at 28.0C condition was lower than at 25.0C condition.

A new way of the thermal level environment assessment based on “operative temperature thermal level” and new units “decitherm” is introduced, which allow the feelings of man to be followed. Simultaneously the fact that the operative temperature decrease i

This paper presents a concept for more realistic and reliable evaluation of thermal indoorenvironment. A detailed thermal model of a human body, interacting with building simulationmodel, makes it possible to predict transient tissue temperatures of a human body as well aslocal skin temperature levels in realistic working and living conditions. Using thesetemperature distributions of a human body as input data for a new thermal comfort predictionmodel (Hui 2003), both local and overall estimations of thermal comfort of a human body canbe obtained.

Thermal comfort standards determine indoor conditions in buildings as well as the energyconsumption for heating and cooling purposes. Existing thermal comfort standards are basedon steadystatethermal conditions, and according to recent research these standards can notdescribe thermal comfort accurately enough with transient boundary conditions.

Problems following the application of optimal operative temperatures estimated on the basisof PMV and the necessity to apply correct values into the new Czech Government DirectiveNo. 523/2002 Code led to experiments based on the physiological human body responseinstead of on solely mans feelings in a defined environment.