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Dynamic modelling and simulation of a new air conditioning prototype by solar energy
Ali, Chaouki; Bacha, Habib Ben; Baccar, Mounir; Maalej, … - In: Renewable Energy 32 (2007) 2, pp. 200-215
This work presents a new design of an air conditioning prototype by solar energy developed at the Laboratory of Electromechanical Systems of the National Engineering School of Sfax, Tunisia. The new conception permits to produce heat or cold by using solar energy without polluting the...
Persistent link: https://www.econbiz.de/10010803868
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Solar and geothermal heating and cooling of the European Centre for Public Law building in Greece
Karagiorgas, Michaelis; Mendrinos, Dimitrios; Karytsas, … - In: Renewable Energy 29 (2004) 4, pp. 461-470
the building hostel by solar water heaters. Monitoring of the energy system during heating showed excellent energy …
Persistent link: https://www.econbiz.de/10010804399
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Energy and buildings in Mediterranean countries: Present and future
Butera, Federico M. - In: Renewable Energy 5 (1994) 5, pp. 942-949
themselves for a more concerned energy use. Present situation and trens in heating and cooling are discussed, as well as the use …
Persistent link: https://www.econbiz.de/10010805491
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Optimization of operating parameters of ground source heat pump system for space heating and cooling by Taguchi method and utility concept
Sivasakthivel, T.; Murugesan, K.; Thomas, H.R. - In: Applied Energy 116 (2014) C, pp. 76-85
system. However, the COP of a GSHP system will be different for heating and cooling mode operations. Hence in order to reduce … will operate on both heating and cooling modes. Condenser inlet temperature, condenser outlet temperature, dryness fraction …. Optimization of these parameters for only heating or only cooling mode operation is achieved by employing Taguchi method for three …
Persistent link: https://www.econbiz.de/10010737711
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Simulation and control of ventilation rates in greenhouses
Dayan, J; Dayan, E; Strassberg, Y; Presnov, E - In: Mathematics and Computers in Simulation (MATCOM) 65 (2004) 1, pp. 3-17
A simple model is presented, which enables the calculation of ventilation in a commercial rose-growing greenhouse (greenhouse). The model represents the greenhouse as three vertically stacked horizontal segments and addresses the energy and vapor transfer among these segments and between them...
Persistent link: https://www.econbiz.de/10010749974
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A study on energy and CO2 saving potential of ground source heat pump system in India
Sivasakthivel, T.; Murugesan, K.; Sahoo, P.K. - In: Renewable and Sustainable Energy Reviews 32 (2014) C, pp. 278-293
European countries in heating/cooling and industrial applications. Their potential for reduction in CO2 emission has been very … require both heating and cooling. Based on the topography of the states, they are classified into severe winter states and … annual CO2 emission by the conventional systems used for heating and cooling vary between 5270 and 26,352millionkg of CO2. In …
Persistent link: https://www.econbiz.de/10010753393
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Experimental investigation of a multi-function heat pump under various operating modes
Cho, Changyong; Min Choi, Jong - In: Renewable Energy 54 (2013) C, pp. 253-258
functions of heating, cooling, and hot water supply was designed and its performance was investigated according to operating … modes. In the cooling-hot water mode, the capacity and COP were enhanced as compared to other modes because the waste heat … from the outdoor heat exchanger was utilized as useful heat in the indoor heat exchanger. In the heating and hot water …
Persistent link: https://www.econbiz.de/10010806274
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Energy code for office buildings in Israel
Shaviv, E.; Yezioro, A.; Capeluto, I.G. - In: Renewable Energy 33 (2008) 1, pp. 99-104
A new Energy code for office buildings in Israel, currently under development, is presented. This code is based on a prescriptive approach, which can be easily applied as a tool for the design of office buildings through all the design stages including the early ones. The prescriptive approach...
Persistent link: https://www.econbiz.de/10010806556
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Heating performance investigation of a bidirectional partition fluid thermal diode
Fang, Xiande; Xia, Lulu - In: Renewable Energy 35 (2010) 3, pp. 679-684
to serve both passive solar heating in winter and passive cooling in summer. BPFTD heating performances are tested with … the BPFTD with the water-wall. The test results show that the BPFTD has much better heating performances than the water …
Persistent link: https://www.econbiz.de/10010806891
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Dynamic temperature dependence patterns in future energy demand models in the context of climate change
Hekkenberg, M.; Moll, H.C.; Uiterkamp, A.J.M. Schoot - In: Energy 34 (2009) 11, pp. 1797-1806
Energy demand depends on outdoor temperature in a ‘u’ shaped fashion. Various studies have used this temperature dependence to investigate the effects of climate change on energy demand. Such studies contain implicit or explicit assumptions to describe expected socio-economic changes that...
Persistent link: https://www.econbiz.de/10010808704