Multi-Objective Optimization of Complex Measures on Supplying Energy to Rural Residential Buildings in Uzbekistan Using Renewable Energy Sources

Applied Solar Energy, vol. 56, pp. 137–148

Abstract

Abstract This study presents the first results of multi-objective optimization of typical four-room rural residential buildings in Uzbekistan with different levels of thermal insulation. For that purpose, a simplified static model of buildings based on the heating degree-days has been employed and the optimal designs were found for three scenarios. In the first scenario, the life-cycle cost of the reconstruction measure was analyzed where the optimal thicknesses of the insulation layer were found for the roof, floor, and external walls but no solutions were found for windows, solar collectors, and photovoltaic (PV) panels. In the second scenario, primary energy consumption was minimized to zero for space heating and domestic hot water. In this scenario, the thickness of insulation layers for building envelopes and the size of solar collectors were optimized in various regions. In the final scenario, low carbon communities were considered in technoeconomic conditions of Uzbekistan. However, no optimal solutions were found in the current cost of electricity.

Authors 5

1. Akbar Halimov corresponding Aachen Institute for Energy Efficient Buildings and Indoor Climate

   RWTH Aachen University

   Affiliation as printed

   RWTH Aachen University, Institute for Energy Efficient Buildings and Indoor Climate, 52074, Aachen, Germany

2. Markus Nürenberg Aachen Institute for Energy Efficient Buildings and Indoor Climate

   RWTH Aachen University

   Affiliation as printed

   RWTH Aachen University, Institute for Energy Efficient Buildings and Indoor Climate, 52074, Aachen, Germany

3. Dirk Müller Aachen Institute for Energy Efficient Buildings and Indoor Climate

   RWTH Aachen University

   Affiliation as printed

   RWTH Aachen University, Institute for Energy Efficient Buildings and Indoor Climate, 52074, Aachen, Germany

4. J. S. Akhatov

   Academy of Sciences Republic of Uzbekistan · Physicotechnical Institute

   Affiliation as printed

   Physical–Technical Institute, NPO Physics–Sun, Academy of Sciences of the Republic of Uzbekistan, 100084, Tashkent, Uzbekistan

5. Zafar Iskandarov

   Tashkent State Agrarian University

   Affiliation as printed

   Tashkent State Agrarian University, 100700, Tashkent, Uzbekistan