Most thermal simulations of buildings do not include green walls during calculations. This study integrates and evaluates the effect extensive (GWs) on energy balance using a global code dynamic simulation under TRNSYS. The first part presents equations integrated in model. A description software is carried out as well methods integration developed Then, modeling influence GW (Ivy or Virginia C...

In this paper, a new solar-assisted heat pump drying system with waste recovery and double water tanks (SCAHP) was established the optimized by TRNSYS variable air volume experiment. The annual cumulative efficiency of SCAHP (COPac), buffer tank heating (ηBT) hot storage (ηST) are all considered as optimization objectives, paper discusses relationship between three objectives studies influence ...

Abstract Solar collectors are devices that enable the use of solar radiation, e.g., for hot water preparation or space heating. They playing an increasingly important role in Europe and around world, mainly due to easy availability sun, as energy source. The advisability their depends on a number factors, which climatic conditions extremely one. This paper presents results simulations collector...

A zero net energy (ZNE) building produces as much energy on-site as it uses annually -with a grid-tied, netmetered photovoltaic (PV) system and active solar water heating. On a plot of annual costs (the sum of utility bills and mortgage payments for energy options) versus percent energy savings, the path to ZNE extends from a base case building through a series of energy-saving designs to the Z...

Recently, the use of hybrid systems using multiple heat sources in buildings to ensure a stable energy supply and improve the system performance has gained attention. Among them, a heat pump system using both solar and ground heat was developed and various system configurations have been introduced. However, establishing a suitable design method for the solar-assisted ground heat pump (SAGHP) s...

This study aims to investigate the fulfillment of four Net Zero Energy Building (NZEB) balances, NZEB-PE, NZEB-site, NZEB-emission and NZEB-cost, considering the four metrics of primary energy (PE), site energy, CO2-eqemissions and energy cost, respectively, using weighting factors based on Finnish and international reference data. The study analyzes five conventional energy systems and seven b...

This paper describes the design and performance analysis of a variable-capacity heat pump system developed for a small [1800ft (167 m)] prototype net ZEH with an average design cooling load of 1.25 tons (4.4 kW) in five selected US climates. The heat pump integrates space heating and cooling, water heating, ventilation, and humidity control (humidification and dehumidification) functions into a...

Given restrictions that comfort conditions in the interior of a building are satisfied, it becomes obvious that the problem of energy conservation is amultidimensional one. Scientists from a variety of fields have been working on this problem for a few decades now; however, essentially it remains an open issue. In the beginning of this article, we define the whole problem in which the topics ar...