Design of a new hybrid windcatcher and ground source heat pump system

Gorji Mahlabani, Yousef; Yaghoubi Moghaddam, Maryam; Hakim Azari, Mohammad; Torabi, Farschad

doi:10.22059/ees.2022.251288

Design of a new hybrid windcatcher and ground source heat pump system

Authors

Yousef Gorji Mahlabani ¹

Maryam Yaghoubi Moghaddam ¹

Mohammad Hakim Azari ²

Farschad Torabi ³

¹ Department of Architecture, Faculty of Architecture and Urbanism, Imam Khomeini International University, Qazvin, Iran

² Department of Architecture, Faculty of Architecture and Urbanism, University of Art, Tehran, Iran

³ Department of Energy Systems, Faculty of Mechanics, K. N. Toosi University of Technology, Tehran, Iran

10.22059/ees.2022.251288

Abstract

In order to supply the thermal load of a building, a huge amount of energy is consumed. Therefore, it is necessary to use renewable energy sources in today’s architecture. As a matter of fact, this issue has begun to be the focus of many studies worldwide making the topic even more interesting. In this regard, the wind has always been known as an outstanding renewable source of energy used in Iran for thousands of years. Windcatchers, known as Badgirs in Iran, are notably used in warm-humid and hot-dry climates to make the best use of wind energy in these areas. However, Badgirs are neglected in today’s life due to the limitation associated with their use in modern buildings. Accordingly, the current study aims to take into account some advantages of the windcatchers (Badgirs) in addition to highlighting their effect in both reducing energy consumption and providing thermal comfort. In previous research, humidification and similar solutions have been used to provide cooling and heating by a windcatcher, however, in none of them the Ground source heat pump system has not been used for this purpose. This study proposes a system consisting of a windcatcher and a Ground Source Heat Pump system for a building in Yazd, Iran. For this purpose, the study is conducted in three steps. First, current literature is studied. Second, the proposed system is simulated using Transys software. Finally, a mathematical calculation is performed. The simulation model consists of a room located in Yazd with width, length, and height of 4m, 6m and 3.5m, respectively. The findings show the positive effect of the proposed system in improving thermal comfort and energy by about 37.6% in summer and 7% in winter.

Keywords

Windcatcher’s Efficiency

Ground Source Heat Pumps System

Energy Consumption

Thermal Comfort

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