Renewable Energy Economics, Policies and Planning
Investigation of the Height Distribution Effect of Residential Complex Blocks on Optimization of Cooling and Heating Loads (Tehran, District 9)

Zeinab Ghasemi Sangi; Abbas Tarkashvand; Hanieh Sanaeian

Volume 10, Issue 3 , August 2023, , Pages 1-12

  The height of buildings is one of the main features of urban configuration that affects energy consumption. However, to our knowledge, the complexity of relationships between the height parameters and energy use in urban blocks is poorly understood. In this context, the present study investigates the ...  Read More

Renewable Energy Resources and Technologies
Numerical Simulation of a Solar Cooling System Based on Variable-Effect NH3-Water Absorption Chiller using TRNSYS

Abir Hmida; Abdelghafour Lamrani; Mamdouh El Haj Assad; Yashar Aryanfar; Jorge Luis Garcia Alcaraz

Volume 10, Issue 3 , August 2023, , Pages 59-66

  Around the globe, a 60 % increase in energy demand is predicted to occur by the end of the year 2030 due to the ever-increasing population and development. With a registered temperature up to 50 °C in August 2020, which is classified as one of the hottest regions in the world, the demand for cool ...  Read More

Renewable Energy Resources and Technologies
Comparative Analysis of Thermal Performance of a Solar Water Heating System Based on the Serpentine and Risers-Head Configurations

Selfa Johnson Zwalnan; Nanchen Nimyel Caleb; Mahan Morgan Mangai; Nantim Yohana Sanda

Volume 8, Issue 2 , April 2021, , Pages 21-30

  The effect of solar collector configurations on the thermal efficiency of an active solar water heater was investigated using TRNSYS in this study. Two versions of a solar heater were formulated on the basis of serpentine and riser-header flat plate configurations. Both models were simulated based on ...  Read More

Environmental Impacts and Sustainability
Application of Artificial Neural Networks to the Simulation of Climate Elements, Drought Forecast by Two Indicators of SPI and PNPI, and Mapping of Drought Intensity; Case Study of Khorasan Razavi

Mohammad Hossein Jahangir; Mahnaz Abolghasemi; Seyedeh Mahsa Mousavi Reineh

Volume 7, Issue 2 , April 2020, , Pages 19-26

  Drought is considered as a destructive disaster that can have irreversible effects on different aspects of life. In this study, artificial neural network was used as a powerful means of modeling nonlinear and indefinite processes in order to simulate drought intensities at 7 synoptic stations of Khorasan ...  Read More