Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 35 for “"TRNSYS"”.
-
Entwicklung optimierter Regelverfahren für Raumlufttechnische Anlagen mit Hilfe des Simulationssystems TRNSYS
… und Gebäude mit Hilfe des Simulationssystems TRNSYS. Während für das Gebäude ein vorhandenes TRNSYS Modul verwendet wird, wurden für Klimaanlage und Regelung neue Simulationsmodule entwickelt. Der Klimaanlagensimulator ist seinerseits modular aufgebaut enthält sowohl geometrisch physikalische …
-
A comparison of thermal storage models with a solar electric generation system using Trnsys
… developed for the transient simulation program TRNSYS with IISiBat that models three different types of sensible thermal storages for analysis with use in a solar electric generating system (SEGS) simulation. One component containing a fully mixed, stratified and a plug flow tank model has been …
-
Entwicklung und Validierung einer Simulationsbasis zum Test von Reglern raumlufttechnischer Anlagen
… et al.) entwickelt und in das Programm TRNSYS eingefügt sowie die vorhandenen Modelle an ihre Genauigkeit angepasst. Insbesondere sind dies die Modelle für Splitsysteme bei stetiger und nichtstetiger Regelung mit der detaillierten Betrachtung des Anlagenverhaltens sowohl beim Voll- als …
-
Addressing the problem with natural ventilation : producing a guide for designers to integrate natural ventilation into the early stages of building design
… natural ventilation effectively. Using the TRNSYS simulation environment, I methodically show how a designer would use TRNSYS to make informed decisions about natural ventilation in their designs. My research is meant to be a valuable tool for other designers who are unsure or uncomfortable …
-
Performance analysis and modelling of hybrid photovoltaic-thermal solar panels
… tested, and modelled using both MATLAB and TRNSYS. During the experimental testing, which took place on the Missouri University of Science and Technology campus in Rolla, Missouri; two identical PVT panels were tested alongside two PV panels to gather an electrical baseline for comparison. …
-
Combined heat and power: technology review and analysis for a residential building
… region. The calculations are based on models in TRNSYS and BHKW Plan. The results show, that the fuel cells, represents the heat demand in the best way. Environmentally, each system shows improvements of over 50% CO2 reduction. From the economic perspective none of the systems can offer a return …
-
Analysis of a Trigeneration System Through Transient Simulations
… computer model of a trigeneration system using TRNSYS software. This simulation model can accurately reproduce the results from a real world experiment of a trigeneration system conducted over five days. This model is then applied to an entire cooling season to show the primary energy usage of a …
-
Ηλιακή θερμική αποθήκευση και αντλίες θερμότητας με υλικά αλλαγής φάσης
… οριακών συνθηκών και παρουσιάζεται το λογισμικό TRNSYS που χρησιμοποιήθηκε στα πειράματα για την μοντελοποίηση και επικύρωση των αποτελεσμάτων. Στο Κεφάλαιο 7 περιγράφονται τα πειράματα που εκτελέστηκαν στα πλαίσια της διατριβής. α) Αρχικά αναλύονται οι οριακές επιφάνειες γύρω και κάτω από το ΦΒ, …
-
Fonctionnement dynamique des thermopompes : étude expérimentale et analytique
… programme de simulation thermique de bâtiments (TRNSYS). Les résultats des simulations mettent en évidence que dans l’évaluation des thermopompes il faut tenir compte du fonctionnement dynamique: il diminue leurs rendements et permet, pour une application donnée, de déterminer une thermopompe …
-
Potencial de los intercambiadores de calor tierra-aire para acondicionamiento de aire en diferentes zonas climáticas
… obtiene de un estudio comparado con el modelo de Trnsys V17 (Type 460 de Hollmuller) , y con datos prácticos de una instalación de prueba, obteniendo una buena coincidencia para climas sin presencia de estaciones, mientras que para climas con estaciones se presentan diferencias menores al 10%.
-
Development of a Model and Optimal Control Strategy for the Cal Poly Central Plant and Thermal Energy Storage System
… using a transient systems simulation program (TRNSYS) that includes plant performance and manufacturer data for the primary system components, which are comprised of pumps, chillers, cooling towers, and a thermal energy storage tank. The model is calibrated to the actual measured performance of …
-
Procedures for automated building energy model production for urban and early design
… simulation engines such as EnergyPlus and TRNSYS have been developed. The first approach introduces an algorithm that automatically converts arbitrary building massing models into multi-zone thermal models following the ASHRAE 90.1 Appendix G prescribed perimeter and core discretization …
-
Diagnosi Energetica dell’Azienda Ospedaliera “G.Brotzu”
… virtual dynamic model implemented with the code TRNSYS-TRNBUILD. After the validation and the calibration of the code, we developed a virtual reproduction of the entire building that was used to perform several hourly simulations in dynamic conditions, aiming to study the thermal behavior of the …
-
Evaluation of Heat Rejection Strategies for Liquid Desiccant Air-Conditioning Systems
… of cooling water temperatures was modelled using TRNSYS, a transient simulation program, as the first stage of the study. To find the most promising heat rejection technologies, available cooling methods were reviewed and two were selected (based on the results of the first phase of the study), …
-
Estratégias para minimizar o consumo de energia elétrica no apoio a sistemas solares de aquecimento de água
… de todos os casos estudados, o software TRNSYS em sua versão 14.2, (KLEIN, 1997) que demonstrou eficácia e coerência nos resultados obtidos Ao longo do trabalho foram simulados mais de setecentos casos, variando-se parâmetros como área de coletores, volume do reservatório, potência …
-
Computer simulation and optimisation of solar heating systems for Cyprus
… been modelled using the component models of the TRNSYS programme. They concern thermosyphon solar water heating systems, active solar water heating systems, solar space heating systems, combined solar water and space heating systems and solar assisted heat pump systems for space and water …
-
Preliminary Investigation into Solar Thermal Combi-system Performance
… hot water system were investigated using TRNSYS models and simulations, and the thermal performances were compared using different combinations of solar collector and heat exchanger types, different locations, and a sensitivity analysis was performed using the basic solar combi-system. …
-
Study of Liquid Desiccant Air-Conditioning for High Performance Greenhouses
… application of a humid greenhouse microclimate. TRNSYS simulations were undertaken to study the feasibility of two liquid desiccant dehumidification systems based on their capacity to control the greenhouse microclimate, and their cooling performance. The base model (B-LDAC) included a natural …
-
Urban carbon and energy analysis: calculation of energy flows and emissions from residential housing clusters and assessment of sustainable energy options
… of the models, the transient simulation package TRNSYS was used and a residential area in Southampton that represents a typical UK area, was chosen as a case study. The notion of combining a number of houses to form a local microgrid proved to be beneficial for all the technologies examined in …
-
Solar Colletors Combined with Ground-Source Heat Pumps in Dwellings - Analyses of System Performance
… been carried out with the simulation program TRNSYS. Large differences were found between the systems. The optimal design in a new system is to use solar heat is directly for domestic hot water during summertime and (depending on the depth of the borehole) also for recharging of the borehole …
Page 1 of 2