1. F-Chart Method 1.1. Performance and Design of Liquid-Based Solar Heating Systems 1.1.1. Storage Capacity Correction 1.1.2. Collector Flow Rate Correction 1.1.3. Load Heat Exchanger Size Correction 1.2. Performance and Design of Air-Based Solar Heating Systems 1.2.1. Pebble Bed Storage Size Correction 1.2.2. Air Flow Rate Correction 1.3. Performance and Design of Solar Service Water Systems 1...

The convective and conductive heat transfer between the solar collector working fluids make photothermal performance limited, result in a higher rate of loss from surface conventional absorber to surroundings. Direct absorption collectors (DASC) are favorable alternative for their improved performance. In this study, simulation based on nanostructured has been carried out using TRNSYS. connecti...

Abstract The current work reports on the effect of local climatic conditions electricity generation typical building integrated photovoltaic systems (BIPVs). Three different climates a) semi-continental with increased heating needs, b) Mediterranean moderate and cooling needs c) hot desert high are considered for BIPV systems. evaluation was done through validated TRNSYS simulations. findings s...

As a result of global warming and environmental pollution over the past few decades, life on Earth has been adversely affected. For this reason, large-scale zero-energy buildings have garnered considerable attention for utilizing clean energy resources. Hydrogen is green sustainable fuel with remarkable features having high efficiency, higher content than diesel gasoline, producing only water a...

An optimal combination of the characteristics of an air conditioning system and the control strategy is necessary to minimize costs and the energy demand. Therefore a sequential control for such a system was developed, tested by simulation and implemented in an existing plant. The simulation runs have been done with TRNSYS [1],[2]. For the sake of comparison, an optimized control was calculated...

The present study investigates the effectiveness of thermostat control strategy in cooling energy consumption in residential buildings. To evaluate the energy consumption, two scenarios including a residential zone with and without the thermostat control system are assumed. The TRNSYS software provides an efficient numerical tool to model and evaluate a cooling system. Furthermore, since solar-...

The using of double heat pipe based heat exchanger (HPHX) in a conventional fully fresh air air-conditioning (AC) system was examined in the present study. The fabricated HPHXs were tested under the actual conditions and the measured data were used to study the performance of the existing AC system (System A) and AC system equipped with the double HPHX (System B) for a yearly operation through ...