Exploring changes of building energy consumption and its relationships with climate can provide basis for energy-saving and carbon emission reduction. Heating and cooling energy consumption of different types of buildings during 1981-2010 in Tianjin city, was simulated by using TRNSYS software. Daily or hourly extreme energy consumption was determined by percentile methods, and the climate impa...

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 availability of freshwater and energy is a serious issue in remote islanded areas, especially at small scale, where there may not be the possibility to access grid and/or water distribution systems. In this context, polygeneration systems operating on basis local, renewable sources can an answer users’ demand for electricity, heating, cooling, domestic hot water. scope proposed paper was in...

Growing population, depleting fossil fuels, economic expansions, and energy intensive life style demand are resulting in higher prices. We use as of heat electricity, which can directly be obtained from sun using thermal collectors solar cells. Solar systems gaining attention for water space heating applications due to green aspects energy. A collector is a vital part system absorb radiant the ...

The purpose of this study was to conduct a modeling-based energy performance assessment and validation an air-to-water heat pump (AWHP) system, in the cooling mode, integrated with multi-span greenhouse using TRNSYS software. We used building simulation (BES) model investigate characteristics AWHP system for cooling. modelled components including fan coil unit (FCU), water storage tank, circula...

High-temperature heat pumps consist of a promising choice for substituting conventional boilers and producing hot water with temperature levels in the range 70–80 °C. The use high-temperature makes it possible to exploit existing radiators buildings achieve effective heating indoor space keep thermal comfort at high standards. goal this work is detailed investigation pump, R1234ze(E) as working...

Several studies have analyzed the integration of energy-saving strategies in buildings to mitigate their environmental impact. These focused mainly on a disaggregated analysis such and effects building's energy consumption thermal behavior, using engine simulation software (EnergyPlus, TRNSYS, DOE2) or graphical interface (DesignBuilder, eQuest, ESP-r). However, are complex systems whose behavi...

The energy footprint of houses can be reduced by replacing the aging stock with higher density and more efficient homes equipped on-site renewable production. In this study, a “double density” simulation scenario is considered where each existing detached house in community replaced two equal living area on same land lot. new were assumed to several efficiency measures (envelope, HVAC, domestic...

The PV/T-GSHP heating control system is proposed to address the energy consumption problem of building in northern China. By using TRNSYS establish an automatic model, heat pump start/stop, water supply temperature on load side tank, and high return can achieve purpose being saving, providing stable heating, heating. results show that has annual fluctuation range 0.01~0.17 kW period for a typic...