Abstract In this paper several approaches are discussed for the analysis and comparison of combined solar thermal and heat pump systems The discussion is based on a detailed literature review and investigations on market available systems Based on this an approach to describe and systematically classify combined solar thermal and heat pump systems is presented The approach consists of medium temperature heat from solar thermal to electricity by using low cost lightweight and low maintenance expander as well organic substances or hydrofluoroether HFE 7000 is the subject of this research Keywords—Solar thermal rankine cycle hydrofluoroether I INTRODUCTION A comprehensive review of solar-powered heat engines for power generation was made by Spencer [1] in 1989 Rankine

Energies

Adsorption chillers and heat pumps have been applied successfully for different applications like solar thermal cooling of buildings gas adsorption heat pumps [2 3] and more [4 5] A possible application that has attracted rising interest in recent years is the provision of data centre cooling driven by heat yielded from water cooled CPUs Current high-performance CPUs allow cooling water

market-available solutions is desired to improve the acceptability of solar envelopes and enhance the fraction of building loads covered through solar energy International efforts like IEA SHC Task 56 [1] and Cost Action 1403 [2] are investigating this topic from market technological and energetic perspectives with the aim of studying and promoting solar envelope systems Scientific

A COMPARATIVE ANALYSIS OF MARKET AVAILABLE SOLAR THERMAL HEAT PUMP SYSTEMS Jrn Ruschenburg* and Sebastian Herkel Fraunhofer Institute for Solar Energy Systems ISE Heidenhofstr 2 79110 Freiburg i Br Germany * Corresponding Author joern ruschenburgise fraunhofer de Abstract During the last years many combined solar thermal heat pump systems have entered the market for

and promising market-available solutions In particular the investigated generation systems are: air-to-water heat pump ground-source heat pump condensing boiler and pellet boiler With regard to the distribution system the different behavior and energy consumption of radiant panels fan coils and radiators is taken into account

Since Jordan and Threlkeld [] proposed the concept that combines solar energy with a heat pump many researchers have carried out investigation on various aspects such as energy efficiency parameters design and the operation performance of the solar-assisted heat pump system (SAHP) [9 10 11] Moreover most SAHP systems are designed for building hot water supply

Vortrge und Verffentlichungen Prof Dr Hans

Zeitschriftenaufstze und Journal Artikel ohne Review 4 2 Buchverffentlichungen 8 3 Conference Paper 10 4 Vortrge 27 4 1 Invited keynotes auf internationalen Tagungen 43 5 Eigenverffentlichungen Fraunhofer ISE 44 1 Zeitschriftenaufstze und Journal Artikel 1 1 Zeitschriftenaufstze und Journal Artikel mit Peer -Review 2015 Klein K Langner R Kalz D Herkel S Henning

While the options that use sewage water-heat-pump (Option 1) solar thermal energy (Option 2) or ligneous biomass for heat production belong to the prior the option using a Power-to-Heat (Option 4) plant can be affiliated to the latter As a result of the economical assessment of the generation options it becomes evident that the only options to reach net heat production costs in the target

Ground loop Typical application Heat exchanger system of a borehole heat exchanger (BHE) heat pump system in a central European home Note: Typical BHE length = 100 m Specific heat (kJ/kg K) Thermal conductivity (W/m K) 2 –7 diffusivity (m /s)x10 horizontal heat exchanger pipes (including compact systems with trenches WJSTSD spirals etc ) and 9 4 "geo-structures" (foundation piles

to better know and characterize the most important components of the new solar cooling heating systems considering existing solar thermal cooling systems as a reference to identify ongoing and future related standards and testing methods to identify where new solar cooling heating systems are suitable to develop tools and deliverables permitting to show the level of quality of both

Solar heat pump systems (SHPs) are systems that combine solar energy and heat pumps SHPs have been investigated for several decades and have been proven to increase the share of renewable energy and reduce electric energy demand in residential heating applications Many solar thermal heat pump systems have become market-available in recent years however these systems are still not widely

01/09/2013During the last years most various combined solar thermal heat pump systems have entered the market for residential heating and/or domestic hot water generation In order to determine the suitability of currently developed methods for testing or assessing such systems for present-day solutions a thorough review and analysis of market-available systems are essential The basis of the

We develop decentralized ventilation systems and photovoltaic-thermal collectors e g as the source for a heat pump Heat pumps are our main focus for supplying heat to buildings Our work on this technology addresses the entire value chain: from component development for the cooling circuit through equipment and systems development to quality assurance in practical operation

In comparison to vapor compression refrigeration systems adsorption refrigeration systems can be driven by low-grade thermal energy sources such as solar energy geothermal energy waste heat from industries/automobiles/fuel cells/combined heat and power systems (CHP) etc instead of electricity consumed by a compressor and therefore have large energy conservation potential Moreover

Solar and heat pump systems for residential buildings

Get this from a library! Solar and heat pump systems for residential buildings [Jean-Christophe Hadorn ] -- The combination of heat pumps and solar components is a recent development and has great potential for improving the energy efficiency of house and hot water heating systems As a consequence it can

market available thermally driven cooling devices and market available solar collectors) solar assisted air conditioning can lead to remarkable primary energy savings if the systems are properly designed Pre-conditions necessary to achieve primary energy savings are a sufficient collector size and a suitable size of energy storage in the system As part of SHC Task 25 two tools were produced

Ground loop Typical application Heat exchanger system of a borehole heat exchanger (BHE) heat pump system in a central European home Note: Typical BHE length = 100 m Specific heat (kJ/kg K) Thermal conductivity (W/m K) 2 –7 diffusivity (m /s)x10 horizontal heat exchanger pipes (including compact systems with trenches WJSTSD spirals etc ) and 9 4 "geo-structures" (foundation piles

A review of market-available systems was started within Subtask A in 2010 The aim is to provide a more detailed description for each system including specifications of the main components hydraulic schemes and market availability Until today 75 distinguishable products were found By far most of them are offered by German or Austrian manufacturers numerous systems also by Danish French

Novel and market available solar thermal systems are also reviewed and evaluated using standard evaluation methods based on experimentally determined parameters ISO 9806 Solar thermal collectors integrated directly into the facade benefit from the additional wall insulation at the back displaying higher efficiencies then an identical collector offset from the facade Unglazed solar ther