WP3: Temperature, Humidity, Air Movement and Illumination Levels Monitoring for a Period of a Year and Experimental Laboratory Research to Determine the Thermal Characteristics of Traditional Materials

The tasks of WP3 deal with the recording and evaluation of air temperature and relative humidity of selected residential buildings for a period of a year. The environmental data recording will take place on a representative sample of vernacular and contemporary buildings. Additionally, the ambient temperature, the relative humidity, the mean radiant temperature and the illumination levels of outdoor spaces (e.g. courtyards, squares) will be recorded for a period of each of the four seasons. Data related to the microclimatic conditions such as the building orientation, the immediate surrounding structures, the outdoor and semi-outdoor spaces, the planting and the existence of water elements will be recorded for each of the selected buildings and outdoor spaces.

 

Initially, the instruments monitoring the climatic conditions will be calibrated confirming that the measurements have an accuracy of ±0.1°C. The recordings of the air temperature (°C) and the relative humidity (%) will be carried out by the use of a sensor / instrumentation data logger at a height of 1.2m. The monitoring of the outdoor climatic conditions will be recorded by a portable weather station at a height of 1.5m. The recordings will include measurements of the ambient temperature (°C), the relative humidity (%), the globe temperature (° C) and the wind direction (°) and speed (m/s) on a selected grid at three different hours of the day (9:00a.m., 12:00p.m. and 15:00p.m.) for the winter, summer, autumn and spring respectively.    

 

Information on the activities (met) and clothing (clo) affecting the metabolic rate and the reduction of the body heat loss respectively will be carried out for both the indoor and outdoor space. A target level of thermal comfort can be achieved by calculating the average Predicted Mean Vote Index (PMV) and the Predicted Percentage Dissatisfied Index (PPD). Additionally, the Physiological Equivalent Temperature (P.E.T.) will be calculated in order to evaluate the outdoor microclimatic conditions.

 

A meteorological station will be installed in each case study of rural settlements for comparative analysis with the indoor measurements. The recordings of the meteorological station will be compared with the values taken from the nearest station of the Meteorological Service of Cyprus. The meteorological data will be determined by the air temperature (°C), the relative humidity (%), the wind speed (m/s) and the global radiation (W/m²).

 

 

Lastly, several samples of materials (e.g. building blocks, bricks, mortar and mud-bricks) will be sent to the Laboratory of Building Materials of the University of Cyprus in order to calculate their thermal properties. The thermal conductivity (k), the thermal capacity (c) and the heat diffusing of the materials will be calculated in the laboratory. The research team will also carry out measurements on existing walls. The calculation of the materials thermal characteristics, mentioned above, will be undertaken in accordance with international practices (e.g. ASTM D5334) using the body ISOMET 2104 and appropriate sensors.   

 



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Research Project Coordinator: Maria Philokyprou, Department of Architecture