SOLCHIPS—A fast predesign and optimization tool for solar heating with seasonal storage

Lund, Peter; Peltola, Sanna

doi:10.1016/0038-092x(92)90057-h

Cited by 15 publications

(7 citation statements)

References 3 publications

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“…Different simulation programs such as TRNSYS (Klein et al, 1975), SOLCHIPS (Lund, 1989;Lund and Peltola, 1992), etc. have been used to design solar hot water systems through detailed simulation approach.…”

Section: Introductionmentioning

confidence: 99%

Determination of design space and optimization of solar water heating systems

2007

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Section: Introductionmentioning

confidence: 99%

Determination of design space and optimization of solar water heating systems

2007

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“…The design methods reported thus far can be broadly classified into correlation-based methods such as the method [1], method [2], -chart method [3], and , -chart method [4] and simulation-based methods such as transient system simulation (TRNSYS) [5] and pre-design and optimization tool for solar heating systems with seasonal storage (SOLCHIPS) [6]. The correlation-based methods were developed on the basis of the results of a large number of detailed simulation studies.…”

Section: Introductionmentioning

confidence: 99%

A Novel Design Method for Optimizing an Indirect Forced Circulation Solar Water Heating System Based on Life Cycle Cost Using a Genetic Algorithm

2015

Energies

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Abstract:To maximize the energy performance and economic benefits of solar water heating (SWH) systems, the installation and operation-related design variables as well as those related to capacity must be optimized. This paper presents a novel design method for simultaneously optimizing the various design variables of an indirect forced-circulation SWH system that is based on the life cycle cost and uses a genetic algorithm. The effectiveness of the proposed method is assessed by evaluating the long-term performance corresponding to four cases, which are optimized using different annual solar fractions and sets of the design variables. When the installation and operation-related design variables were taken into consideration, it resulted in an efficient and economic design and an extra cost reduction of 3.2%-6.1% over when only the capacity-related design variables were considered. In addition, the results of parametric studies show that the slope and mass flow rate of the collector have a significant impact on the energy and economic performances of SWH systems. In contrast, the mass flow rate in the secondary circuit and the differences in the temperatures of the upper and lower dead bands of the differential controller have a smaller impact.

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“…In addition to the lower heat loss mentioned earlier, the smaller size of the system [43] in terms of storage volume and collector area, allows cost reduction. Furthermore, as shown by Eq.…”

Section: Low Temperature Seasonal Thermal Energy Storagementioning

confidence: 99%

“…This system consisted of 1100 m 2 collector area with 1500 m 3 water storage and 11,000 m 3 duct storage. This solar heating system was designed to provide 75% of heating demand for 44 flats [43], but monitored results showed a solar fraction of only 26%. This failure was due to heat pump malfunction, lower storage capacity than calculated and lower solar collector efficiency (24%) than assumed (43%) due to higher return temperature to the collector.…”

Section: Combining Two Seasonal Storage Systems With a Heat Pumpmentioning

confidence: 99%

Seasonal thermal energy storage with heat pumps and low temperatures in building projects—A comparative review

Hesaraki

Holmberg

Haghighat

2015

Renewable and Sustainable Energy Reviews

206

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a b s t r a c tApplication of seasonal thermal energy storage with heat pumps for heating and cooling buildings has received much consideration in recent decades, as it can help to cover gaps between energy availability and demand, e.g. from summer to winter. This has the potential to reduce the large proportion of energy consumed by buildings, especially in colder climate countries. The problem with seasonal storage, however, is heat loss. This can be reduced by low-temperature storage but a heat pump is then recommended to adjust temperatures as needed by buildings in use. The aim of this paper was to compare different seasonal thermal energy storage methods using a heat pump in terms of coefficient of performance (COP) of heat pump and solar fraction, and further, to investigate the relationship between those factors and the size of the system, i.e. collector area and storage volume based on past building projects including residences, offices and schools.

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SOLCHIPS—A fast predesign and optimization tool for solar heating with seasonal storage

Cited by 15 publications

References 3 publications

Determination of design space and optimization of solar water heating systems

Determination of design space and optimization of solar water heating systems

A Novel Design Method for Optimizing an Indirect Forced Circulation Solar Water Heating System Based on Life Cycle Cost Using a Genetic Algorithm

Seasonal thermal energy storage with heat pumps and low temperatures in building projects—A comparative review

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