German central solar heating plants with seasonal heat storage

Bauer, Dan; Marx, Roman; Nußbicker-Lux, J.; Ochs, Fabian; Heidemann, W.; Müller‐Steinhagen, Hans

doi:10.1016/j.solener.2009.05.013

Cited by 220 publications

(127 citation statements)

References 5 publications

Supporting

Mentioning

124

Contrasting

Unclassified

Order By: Relevance

“…These storage options are technically feasible, but applications are limited because of the high investment costs. A German central solar heating plant with seasonal storage is described by Bauer et al [32], who also discuss the heat losses from certain installations. For example, for seasonal water storage with a volume of 12,000 m 3 in Friedrichshafen, the yearly heat losses from the store were between 322 and 482 MWh, yielding a storage utilization factor of around 60%.…”

Section: Underground Storagementioning

confidence: 99%

A Comprehensive Review of Thermal Energy Storage

2018

View full text Add to dashboard Cite

Thermal energy storage (TES) is a technology that stocks thermal energy by heating or cooling a storage medium so that the stored energy can be used at a later time for heating and cooling applications and power generation. TES systems are used particularly in buildings and in industrial processes. This paper is focused on TES technologies that provide a way of valorizing solar heat and reducing the energy demand of buildings. The principles of several energy storage methods and calculation of storage capacities are described. Sensible heat storage technologies, including water tank, underground, and packed-bed storage methods, are briefly reviewed. Additionally, latent-heat storage systems associated with phase-change materials for use in solar heating/cooling of buildings, solar water heating, heat-pump systems, and concentrating solar power plants as well as thermo-chemical storage are discussed. Finally, cool thermal energy storage is also briefly reviewed and outstanding information on the performance and costs of TES systems are included.

show abstract

Section: Underground Storagementioning

confidence: 99%

A Comprehensive Review of Thermal Energy Storage

2018

View full text Add to dashboard Cite

show abstract

“…These are used to provide heat demand for space heating and domestic hot water for large housing estates (central solar heating plants with seasonal storage (CSHPSS)) or to supply heat to large multiple dwellings, hospitals, hostels or to the district heating systems of large housing estates (solar systems with diurnal heat storage) [39,40].…”

Section: Experiences In Solar Water Heating Systems In Europementioning

confidence: 99%

Economic and Environmental Analysis of Investing in Solar Water Heating Systems

et al. 2016

View full text Add to dashboard Cite

Solar water heating (SWH) systems can provide a significant part of the heat energy that is required in the residential sector. The use of SWH systems is motivated by the desire to reduce energy consumption and especially to reduce a major source of greenhouse gas (GHG) emissions. The purposes of the present paper consist in: assessing the solar potential; analysing the possibility of using solar energy to heat water for residential applications in Romania; investigating the economic potential of SWH systems; and their contribution to saving energy and reducing CO 2 emissions. The results showed that if solar systems are used, the annual energy savings amount to approximately 71%, and the reduction of GHG emissions into the atmosphere are of 18.5 tonnes of CO 2 over the lifespan of the system, with a discounted payback period of 6.8-8.6 years, in accordance with the savings achieved depending on system characteristics, the solar radiation available, ambient air temperature and on heating load characteristics. Financially, the installation of SWH systems determines net savings of 805-1151 Euro in a 25-year period in the absence of governmental subsidies. According to the sensitivity analysis, installing a SWH system with subsidies of up to 50% determines the reduction of the discounted payback period to 3.1-3.9 years and the increase of net savings to 1570-1916 Euro. These results indicate that investing in these systems is cost-effective for Romanian households as long as the governmental subsidies increase.

show abstract

“…The seasonal thermal energy storage (STES) systems fall back into the first category and could also be called ''long-term'' heat storage, thanks to their capability of guaranteeing a seasonal energy storage: this consists in collecting and storing the heat in the hot seasons and extracting and using it in the winter period, when the heat demand is bigger. The STES systems include several methodologies for storing the heat: these can exploit the groundwater (ATES-aquifer thermal energy storage) (Dickinson et al 2009;Paksoy et al 2000;Rosen 1999), hot water confined in steel tanks (Bauer et al 2010;Novo et al 2010) or the ground itself, being it constituted by rocks or dry or wet quaternary sediments; in this last case the connection with the ground is provided by a series of boreholes (BTES) (Fisch et al 1998). Focusing on the last type of seasonal storage, the behavior of the ground exposed to a thermal treatment is a fundamental concept.…”

Section: State Of the Art On The Heat Storagementioning

confidence: 99%