What are the Required Conditions for Heavy Structure Buildings to be Thermally Effective in a Hot Humid Climate?

2004 ◽  
Vol 126 (3) ◽  
pp. 886-892 ◽  
Author(s):  
Isaac G. Capeluto ◽  
Abraham Yezioro ◽  
Edna Shaviv
Keyword(s):  
Air Conditioning ◽  
Residential Buildings ◽  
Mediterranean Coast ◽  
Thermal Mass ◽  
Humid Climate ◽  
Indoor Temperature ◽  
Average Temperature ◽  
Temperature Swing ◽  
Hot Humid Climate ◽  
Night Ventilation

We calculate the influence of thermal mass and night ventilation on the reduction of the maximum indoor temperature in summer in residential buildings without using air-conditioning. The results are given for different locations in the hot-humid Mediterranean climate of Israel. We found that the maximum obtained indoor temperature reduction depends linearly on the temperature difference between day and night at the site. The results obtained show that one can predict the indoor temperature decrease, due to the thermal mass and night ventilation, from the simple and available data of the long term average temperature swing of the site, which is a common available data. The conclusion is that in the hot-humid climate of the Mediterranean coast, high thermal mass with night ventilation is effective for residential buildings with no air-conditioning provided the temperature swing is above 5°C, which is in general the case in this climate.

scholarly journals The Effect of the Thermal Mass of the Building Envelope on Summer Overheating of Dwellings in a Temperate Climate

Energies ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 4117
Author(s):  
Tadeusz Kuczyński ◽  
Anna Staszczuk ◽  
Piotr Ziembicki ◽  
Anna Paluszak
Keyword(s):  
Building Materials ◽  
Heat Waves ◽  
Residential Buildings ◽  
Building Envelope ◽  
Temperate Climate ◽  
Maximum Temperature ◽  
Thermal Mass ◽  
Occupant Behavior ◽  
Average Maximum ◽  
Night Ventilation

The main objective of this paper is to demonstrate the effectiveness of increasing the thermal capacity of a residential building by using traditional building materials to reduce the risk of its excessive overheating during intense heat waves in a temperate climate. An additional objective is to show that the use of this single passive measure significantly reduces the risk of overheating in daytime rooms, but also, though to a much lesser extent, in bedrooms. Increasing the thermal mass of the room from light to a medium heavy reduced the average maximum daily temperature by 2.2K during the first heat wave and by 2.6K during the other two heat waves. The use of very heavy construction further reduced the average maximum temperature for the heat waves analyzed by 1.4K, 1.2K and 1.7K, respectively, giving a total possible reduction in maximum daily temperatures in the range of 3.6 °C, 3.8 °C and 4.3 °C. A discussion of the influence of occupant behavior on the use of night ventilation and external blinds was carried out, finding a significant effect on the effectiveness of the use of both methods. The results of the study suggest that in temperate European countries, preserving residential construction methods with heavy envelopes and partitions could significantly reduce the risk of overheating in residential buildings over the next few decades, without the need for night ventilation or external blinds, whose effectiveness is highly dependent on individual occupant behavior.

Living Comfortable Strategies for Offices in Taiwan's Hot-Humid Climate

2013 ◽  
Vol 457-458 ◽  
pp. 1498-1502
Author(s):  
Wen Pei Sung ◽  
Rong Chen ◽  
Hung Chang Chang ◽  
Y.K. Zhao
Keyword(s):  
High Humidity ◽  
Air Conditioner ◽  
Humid Climate ◽  
Indoor Temperature ◽  
Subtropical Zone ◽  
Indoor Space ◽  
Active Devices ◽  
Taichung City ◽  
Lower Temperature ◽  
Hot Humid Climate

Taiwan is located in the subtropical zone. The climate in summer is hot with high humidity. In order to establish a comfortable office, it needs a lot of active devices, such as: air conditioner to maintain the suitable indoor temperature and humidity. In this study, a business office in the South District Public Health Center, Taichung City is conducted. According to our findings for the office, although the measured indoor temperature was closer to a comfortable temperature during the winter, the occupants of the indoor space still felt excessively warm. By contrast, the occupants of the same space achieved thermal comfort during the summer. This implies that most of the office occupants preferred a cooler environment with a lower temperature. In addition, because the summers in Taiwan are humid and hot, the occupants of an indoor space tend to feel uncomfortable because of the high humidity regardless of whether the temperature is maintained in a comfortable zone. A lower temperature (approximately 21.2-23.9°C) indirectly reduces humidity, thereby making the occupants comfortable.

Effect of envelope colour and thermal mass on indoor temperatures in hot humid climate

Solar Energy ◽  
2005 ◽  
Vol 78 (4) ◽  
pp. 528-534 ◽  
Author(s):  
V. Cheng ◽  
E. Ng ◽  
B. Givoni
Keyword(s):  
Thermal Mass ◽  
Humid Climate ◽  
Hot Humid Climate

scholarly journals A Multi-Facet Retrofit Approach to Improve Energy Efficiency of Existing Class of Single-Family Residential Buildings in Hot-Humid Climate Zones

Energies ◽  
2020 ◽  
Vol 13 (5) ◽  
pp. 1178 ◽  
Author(s):  
Amoah B.O. Kwame ◽  
Nguyen V. Troy ◽  
Najafi Hamidreza
Keyword(s):  
Energy Efficiency ◽  
Cost Effectiveness ◽  
Energy Savings ◽  
Residential Buildings ◽  
Building Envelope ◽  
Single Family ◽  
Data Mining Technique ◽  
Humid Climate ◽  
Improve Energy Efficiency ◽  
Hot Humid Climate

Targeting existing residential buildings for retrofit improvement presents significant prospects for global reduction of energy-usage and carbon footprints. Energy consumption of the existing single-family building in the hot-humid climate zone needs to be targeted for improvement due to their potential energy-savings and sizeable market share. This paper proposes and evaluates energy savings and cost-effectiveness of a whole building retrofit package for single-family residential buildings built between 1950 and 1970. The study outlined a survey conducted using the clustering data mining technique on Florida Single-Family Residential (SFR) homes to determine the essence of the building envelope, patterns of construction, and Heating, Ventilation, and Air-Conditioning (HVAC) systems. The evaluation of the energy efficiency measures (EEMs) effectiveness is performed utilizing Autodesk Revit and a Six-Step modeled framework. This framework consists of baseline model development, validation of the model with an actual case study building, identification of potential EMMs, evaluation of EEMs individually and incorporating the selected EMMs into retrofit package and maximizing the energy-saving and cost-effectiveness of the proposed retrofit package. The study develops proposed retrofit improvement package detailing replacement & improvement EEMs, implementation cost, annual energy savings (kWh), cost-saving ($), and payback period (years) for each individual EEM as well as the combined/total energy improvement package. The paper further explored the usage of solar photovoltaics (PV) energy generation options to offset the remaining energy-use after the implementation of the proposed retrofit package.

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