The Experts below are selected from a list of 222 Experts worldwide ranked by ideXlab platform
Nasa - One of the best experts on this subject based on the ideXlab platform.
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Design package for a complete residential Solar Space Heating and hot water system
2013Co-Authors: NasaAbstract:Information necessary to evaluate the design of a Solar Space Heating and hot water system is reported. System performance specifications, the design data brochure, the system description, and other information pertaining to the design are included.
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Solar Space Heating installed at Kansas City, Kansas
2013Co-Authors: NasaAbstract:The Solar energy system was constructed with the 48,800 square feet warehouse to heat the warehouse area of about 39,000 square feet while an auxiliary energy system heats the office area of about 9,800 square feet. The building is divided into 20 equal units, and each has its own Solar system. The modular design permits the flexibility of combining multiple units to form offices or warehouses of various size floor areas as required by a tenant. Each unit has 20 collectors which are mounted in a single row. The collectors are double glazed flat plate collectors with a gross area of 7,800 sq ft. Air is heated either through the collectors or by the electric resistance duct coils. Extracts from the site files, specifications, drawings, installation, operation and maintenance instructions are presented.
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Solar Space Heating for the Visitors Center, Stephens College, Columbia, Missouri
2013Co-Authors: Nasa, Stephens Coll.Abstract:The Solar energy system located at the Visitors' Center on the Stephens College Campus, Columbia, Missouri is discussed. The system is installed in a four-story, 15,000 square foot building. The Solar energy system is an integral design of the building and utilizes 176 hydronic flat plate collectors which use a 50 percent water ethylene blycol solution and water-to-water heat exchanger. Solar heated water is stored in a 5,000 gallon water storage tank located in the basement equipment room. A natural gas fired hot water boiler supplies hot water when the Solar energy heat supply fails to meet the demand. The designed Solar contribution is 71 percent of the Heating load.
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Solar system installation at Louisville, Kentucky
2013Co-Authors: Nasa, Rademaker Corp.Abstract:The installation of a Solar Space Heating and domestic hot water system is described. The overall philosophy used was to install both a liquid and a hot air system retrofitted to existing office and combined warehouse building. The 1080 sq. ft. office Space is heated first and excess heat is dumped into the warehouse. The two systems offer a unique opportunity to measure the performance and compare results of both air and liquid at one site.
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Solar Space Heating for Warehouse--Kansas City, Kansas
2011Co-Authors: NasaAbstract:New report describes warehouse/office building in Kansas City, Kansas which uses Solar Heating for warehouse portion and conventional Heating and cooling for office portion. Building is divided into 20 equal units, each with its own Solar-Heating system. Modular design enables multiple units to be combined to form offices or warehouses of various sizes as required by tenants.
A Goetzberger - One of the best experts on this subject based on the ideXlab platform.
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tim pcm external wall system for Solar Space Heating and daylighting
Solar Energy, 1997Co-Authors: H Manz, Peter William Egolf, P Suter, A GoetzbergerAbstract:Abstract An external wall system for Solar Space Heating and daylighting composed of transparent insulation material (TIM) and translucent phase change material (PCM) is presented. This system enables selective optical transmittance of Solar radiation. Visible light is mainly transmitted and invisible radiation is mainly absorbed and converted to heat, causing in particular phase change. The storage medium is also the absorber. The concept of the system is presented in detail together with the investigations carried out, including a brief outline of modeling, optical experiments on PCM samples and long-term experiments on a prototype wall as well as numerical simulations. The results indicate a promising thermal–optical behavior of the system. For instance in a Swiss lowland climate (Zurich-airport) a mean energy flux of 13 W m −2 (system efficiency 0.27) was calculated through a south facing TIM–PCM wall into the building during the month with the lowest irradiation (December). The parameters of the prototype wall with a mean melting temperature of the PCM of 26.5°C were assumed. When considering the percentage of time in which the building does not lose energy through the south facing TIM–PCM wall, a maximum can be reached with a mean melting temperature of approximately 20 to 21°C. In this case energy losses through the facade occur only during 1% of the time. With regard to the practical application of the system in buildings, aspects of reliability and durability have to be further investigated.
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TIM–PCM external wall system for Solar Space Heating and daylighting
Solar Energy, 1997Co-Authors: H Manz, Peter William Egolf, P Suter, A GoetzbergerAbstract:Abstract An external wall system for Solar Space Heating and daylighting composed of transparent insulation material (TIM) and translucent phase change material (PCM) is presented. This system enables selective optical transmittance of Solar radiation. Visible light is mainly transmitted and invisible radiation is mainly absorbed and converted to heat, causing in particular phase change. The storage medium is also the absorber. The concept of the system is presented in detail together with the investigations carried out, including a brief outline of modeling, optical experiments on PCM samples and long-term experiments on a prototype wall as well as numerical simulations. The results indicate a promising thermal–optical behavior of the system. For instance in a Swiss lowland climate (Zurich-airport) a mean energy flux of 13 W m −2 (system efficiency 0.27) was calculated through a south facing TIM–PCM wall into the building during the month with the lowest irradiation (December). The parameters of the prototype wall with a mean melting temperature of the PCM of 26.5°C were assumed. When considering the percentage of time in which the building does not lose energy through the south facing TIM–PCM wall, a maximum can be reached with a mean melting temperature of approximately 20 to 21°C. In this case energy losses through the facade occur only during 1% of the time. With regard to the practical application of the system in buildings, aspects of reliability and durability have to be further investigated.
H Manz - One of the best experts on this subject based on the ideXlab platform.
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tim pcm external wall system for Solar Space Heating and daylighting
Solar Energy, 1997Co-Authors: H Manz, Peter William Egolf, P Suter, A GoetzbergerAbstract:Abstract An external wall system for Solar Space Heating and daylighting composed of transparent insulation material (TIM) and translucent phase change material (PCM) is presented. This system enables selective optical transmittance of Solar radiation. Visible light is mainly transmitted and invisible radiation is mainly absorbed and converted to heat, causing in particular phase change. The storage medium is also the absorber. The concept of the system is presented in detail together with the investigations carried out, including a brief outline of modeling, optical experiments on PCM samples and long-term experiments on a prototype wall as well as numerical simulations. The results indicate a promising thermal–optical behavior of the system. For instance in a Swiss lowland climate (Zurich-airport) a mean energy flux of 13 W m −2 (system efficiency 0.27) was calculated through a south facing TIM–PCM wall into the building during the month with the lowest irradiation (December). The parameters of the prototype wall with a mean melting temperature of the PCM of 26.5°C were assumed. When considering the percentage of time in which the building does not lose energy through the south facing TIM–PCM wall, a maximum can be reached with a mean melting temperature of approximately 20 to 21°C. In this case energy losses through the facade occur only during 1% of the time. With regard to the practical application of the system in buildings, aspects of reliability and durability have to be further investigated.
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TIM–PCM external wall system for Solar Space Heating and daylighting
Solar Energy, 1997Co-Authors: H Manz, Peter William Egolf, P Suter, A GoetzbergerAbstract:Abstract An external wall system for Solar Space Heating and daylighting composed of transparent insulation material (TIM) and translucent phase change material (PCM) is presented. This system enables selective optical transmittance of Solar radiation. Visible light is mainly transmitted and invisible radiation is mainly absorbed and converted to heat, causing in particular phase change. The storage medium is also the absorber. The concept of the system is presented in detail together with the investigations carried out, including a brief outline of modeling, optical experiments on PCM samples and long-term experiments on a prototype wall as well as numerical simulations. The results indicate a promising thermal–optical behavior of the system. For instance in a Swiss lowland climate (Zurich-airport) a mean energy flux of 13 W m −2 (system efficiency 0.27) was calculated through a south facing TIM–PCM wall into the building during the month with the lowest irradiation (December). The parameters of the prototype wall with a mean melting temperature of the PCM of 26.5°C were assumed. When considering the percentage of time in which the building does not lose energy through the south facing TIM–PCM wall, a maximum can be reached with a mean melting temperature of approximately 20 to 21°C. In this case energy losses through the facade occur only during 1% of the time. With regard to the practical application of the system in buildings, aspects of reliability and durability have to be further investigated.
Jie Deng - One of the best experts on this subject based on the ideXlab platform.
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simulation and optimization study on a Solar Space Heating system combined with a low temperature ashp for single family rural residential houses in beijing
Energy and Buildings, 2016Co-Authors: Jie Deng, Zhiyong Tian, Ming Yang, Simon Furbo, Zhifeng WangAbstract:Abstract A pilot project of the Solar water Heating system combined with a low temperature air source heat pump (ASHP) unit was established in 2014 in a detached residential house in the rural region of Beijing, in order to investigate the system application prospect for single family houses via system optimization design and economic analysis. The established system was comprised of the glass heat-pipe based evacuated tube Solar collectors with a gross area of 18.8 m 2 and an ASHP with a stated Heating power of 8 kW for the Space Heating of a single family rural house of 81.4 m 2 . The dynamic thermal performance of the pilot system was measured for continuous 20 days under typical cold climate conditions and the test data was used to validate the TRNSYS simulation model established. On the basis of model validation, system optimizations of both the existing pilot household and the typical rural house with good building insulation were undertaken to figure out the system economical efficiency in the rural regions of Beijing. The results show that the payback periods of the Solar Space Heating system combined with the ASHP with the collector areas 15.04–22.56 m 2 are 17.3–22.4 years for the established pilot household on the current electricity price level of 0.5 RMB/kWh, comparing with the reference condition of the fully ASHP Space Heating. It is further found that the equivalent Solar heat price per kWh is too high under the current Solar market cost price and collector technology. To put forward the integrated Solar Space Heating for reducing carbon emission, it is suggested that the Beijing municipal government should offer some financial subsidy to compensate the equivalent Solar heat price per kWh.
Soteris A. Kalogirou - One of the best experts on this subject based on the ideXlab platform.
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Chapter 6 – Solar Space Heating and Cooling
Solar Energy Engineering, 2020Co-Authors: Soteris A. KalogirouAbstract:Chapter 6 deals with Solar Space Heating and cooling systems. Initially, methods to estimate the thermal load of buildings are given, including the heat balance method, the transfer function method, heat extraction rate and room temperature, the simple degree-day method, and the building heat transfer. Then some general features of passive Space design are presented followed by the active systems design. Passive systems include building construction-thermal mass effects, incidental thermal mass effects, intentional thermal mass effects, characteristics and performance of thermal storage walls, building shape and orientation, insulation, windows, sunSpaces, overhangs, and natural ventilation. Active systems include both water-based and air-based Space Heating and cooling systems and comprise Space Heating and service hot water, considerations concerning the location of auxiliary and heat pump systems. The Solar cooling systems described in this chapter include both adsorption and absorption systems. The latter comprise the lithium bromide–water and ammonia–water systems. Finally, the characteristics for Solar cooling with absorption refrigeration systems are given.
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Chapter 6 - Solar Space Heating and Cooling
Solar Energy Engineering (Second Edition), 2014Co-Authors: Soteris A. KalogirouAbstract:Abstract Chapter 6 deals with Solar Space Heating and cooling systems. Initially, methods to estimate the thermal load of buildings are given, including the heat balance method, the transfer function method, heat extraction rate and room temperature, the simple degree-day method, and the building heat transfer. Then some general features of passive Space design are presented followed by the active systems design. Passive systems include building construction-thermal mass effects, incidental thermal mass effects, intentional thermal mass effects, characteristics and performance of thermal storage walls, building shape and orientation, insulation, windows, sunSpaces, overhangs, and natural ventilation. Active systems include both water-based and air-based Space Heating and cooling systems and comprise Space Heating and service hot water, considerations concerning the location of auxiliary and heat pump systems. The Solar cooling systems described in this chapter include both adsorption and absorption systems. The latter comprise the lithium bromide–water and ammonia–water systems. Finally, the characteristics for Solar cooling with absorption refrigeration systems are given.
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Solar Space Heating and cooling systems
Comprehensive Renewable Energy, 2012Co-Authors: Soteris A. Kalogirou, Georgios A FloridesAbstract:This chapter examines Solar Space Heating and cooling systems. Initially, the basic system configurations are presented which include active Solar systems in which direct circulation systems, indirect water-Heating systems, and air water-Heating systems are presented; Space Heating and service hot water systems which include air and water systems, issues concerning the location of auxiliary and heat pump systems; and Solar cooling, which includes adsorption units, absorption units, lithium--water absorption systems, ammonia--water absorption systems, and Solar cooling with absorption refrigeration. Subsequently, heat storage systems are examined which include air and liquid systems thermal storage. Finally, details of various aspects of system design are presented which include module and array design, heat exchangers, and differential temperature controllers.
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Photovoltaic Systems
Solar Energy Engineering : Processes and Systems, 2009Co-Authors: Soteris A. KalogirouAbstract:With the threat of global warming, and the gradual depletion of petroleum supplies, Solar electric power is rapidly becoming significant part of our energy mix. The range of Solar cells spans different materials and different structures in the quest to extract maximum power from the device while keeping the cost to a minimum. Devices with efficiency exceeding 30% have been demonstrated in the laboratory. Solar Energy Engineering: Processes and Systems. Solar Energy Processes and Systems includes all areas of Solar energy engineering. All subjects are presented from the fundamental level to the highest level of current research. The book includes subjects such as energy related environmental problems, Solar collectors, Solar water Heating, Solar Space Heating and cooling, industrial process heat, Solar desalination, photovoltaics, Solar thermal power systems and modelling of Solar systems including the use of artificial intelligence systems in Solar energy systems modelling and performance prediction. Environmental consequences of Solar energy Solar desalination including indirect systems Modelling and performance prediction of Solar energy systems Worked examples and cases studies. Introduction -- Environmental characteristics -- Solar energy collectors -- Performance of Solar collectors -- Solar water Heating systems -- Solar Space Heating and cooling -- Industrial process heat, chemistry applications, and Solar dryers -- Solar desalination systems -- Photovoltaic systems -- Solar thermal power systems -- Designing and modeling Solar energy systems -- Solar economic analysis.
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Solar Space Heating and cooling
Solar Energy Engineering#R##N#Processes and Systems, 2009Co-Authors: Soteris A. KalogirouAbstract:Chapter 6 deals with Solar Space Heating and cooling systems. Initially, methods to estimate the thermal load of buildings are given, including the heat balance method, the transfer function method, heat extraction rate and room temperature, the simple degree-day method, and the building heat transfer. Then some general features of passive Space design are presented followed by the active systems design. Passive systems include building construction-thermal mass effects, incidental thermal mass effects, intentional thermal mass effects, characteristics and performance of thermal storage walls, building shape and orientation, insulation, windows, sunSpaces, overhangs, and natural ventilation. Active systems include both water-based and air-based Space Heating and cooling systems and comprise Space Heating and service hot water, considerations concerning the location of auxiliary and heat pump systems. The Solar cooling systems described in this chapter include both adsorption and absorption systems. The latter comprise the lithium bromide–water and ammonia–water systems. Finally, the characteristics for Solar cooling with absorption refrigeration systems are given.