Abstract
Problem statement: The aims of study were to investigate the effects of environmental factors including the human physiology and thermal comfort during the cycle of process works in workplace. Approach: The selected production line was handling the restoration of trouble report. The environment examined was the relative humidity (%), wind speed (m sec −1 ), illuminance (lux) and air temperature (°C) of the surrounding workstation area. The environmental factors were measured using thermal comfort apparatus, which is capable to measure simultaneously those mentioned environmental factors. The time series data of fluctuating level of factors were plotted to identify the significant changes of factors. Then the thermal comfort of the workers was assessed by using ISO Standard 7730 and thermal sensation scale by using Predicted Mean Vote (PMV). Further Predicted Percentage Dissatisfied (PPD) is used to estimate the thermal comfort satisfaction of the occupant. Finally the PMV were plotted to present the thermal comfort scenario of workers involved in related workstation. Results: The thermal comfort assessment of this workplace which is slightly warm following by thermal sensation and likely to be dissatisfied by the occupant. Conclusion: The result indicated that the activity level and clothing more influenced comfort to the occupants.
Highlights
It is a well known fact, that the environmental factors influence the performance of a human being
Experiments set up: The measurement using thermal comfort instrument as illustrated in Fig. 2 that located in the specified work space
The develop Predicted Mean Vote (PMV) were used to analyze the relationship thermal comfort in two station selected. All these data are correlated with the results of the assessment of thermal comfort and health as perceived by the occupants
Summary
It is a well known fact, that the environmental factors influence the performance of a human being. Thermal stress, high humidity and insufficient illumination are often the reason for the limitation of the ability to fulfill a certain task. What about the situation, this task is to be fulfilled at a certain company? The limitation of processing this task, is affecting the productivity of the company. The condition of the environment of a company seems to be very important with respect to the productivity and the success. A number of studies have found that, Air-conditioned building: This has sealed windows and cooling is available at all times of the year. In this case low-energy design requires optimization of the HVAC plant, for example minimizing the use of heating and cooling at the same time as fan power consumption. The air will be subject to particle filtration and humidity control (Holmes and Hacker, 2007)
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