Abstract

This paper discusses an analysis to obtain the optimal thermal sensor placement based on indoor thermal characteristics. The method relies on the Computational Fluid Dynamics (CFD) simulation by manipulating the outdoor climate and indoor air conditioning (AC) system. First, the alternative sensor's position is considered the optimum installation and the occupant's safety. Utilizing the Standardized Euclidean Distance (SED) analysis, these positions are then selected for the best position using the distribution of the thermal parameters' values data at the activity zones. Onsite measurement validated the CFD model results with the maximum root means square error, RMSE, between both data sets as 0.8°C for temperature, the relative humidity of 3.5%, and an air velocity of 0.08m/s, due to the significant effect of the building location. The Standardized Euclidean Distance (SED) analysis results are the optimum sensor positions that accurately, consistently, and have the optimum % coverage representing the thermal condition at 1,1m floor level. At the optimal positions, actual sensors are installed and proven to be valid results since sensors could detect thermal variables at the height of 1.1m with SED validation values of 2.5±0.3, 2.2±0.6, 2.0±1.1, for R15, R33, and R40, respectively.

Highlights

  • Electricity consumption that meets the thermal comfort demand is currently a strategic issue in the building sector

  • If we look at the Standardized Euclidean Distance (SED) graph of the test results in Figure 18, this considerable SED variation is caused by the large SED variations in the air velocity dimensions

  • Models of indoor and school area environments succeed in Integrated Environmental Solution - Virtual Environment (IES-VE) software with a residual value of less than 10-2

Read more

Summary

Introduction

Electricity consumption that meets the thermal comfort demand is currently a strategic issue in the building sector. In Indonesia, energy consumption for the air conditioner (AC) system reached 20-30% in upper-middle-class residential buildings [1]. In commercial buildings, AC is estimated to cover more than half of electricity consumption. According to ASHRAE 55, thermal comfort is a state of mind that describes someone's satisfaction toward the thermal environment, assessed through subjective evaluation [2]. Thermal comfort is significantly influenced by environmental factors, such as the occupants' thermal environment conditions [3][4]. Every indoor environment has unique thermal environment characteristics that create a unique pattern of its thermal comfort needs. The uniqueness is due to the room's form and orientation, building envelope, outdoor thermal environment, and air conditioning system

Methods
Results
Conclusion
Full Text
Paper version not known

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.