Showing 81 - 90 of 98
This paper presents the life cycle cost analysis of the single slope passive and hybrid photovoltaic (PV/T) active solar stills, based on the annual performance at 0.05 m water depth. Effects of various parameters, namely interest rate, life of the system and the maintenance cost have been...
Persistent link: https://www.econbiz.de/10008919258
The counter current heat exchanger theory with periodic inlet temperatures has been applied to analyze the thermal performance of a water heating system. The theoretical results obtained are in agreement with the experimental data reported in the literature.
Persistent link: https://www.econbiz.de/10008919443
In this paper, the effect of placing a reflecting sheet in an air gap on the thermal performance of single hollow, double hollow and insulated hollow walls and roofs is studied. One face of the wall or roof is exposed to solar radiation and ambient air and the other is in contact with room air...
Persistent link: https://www.econbiz.de/10008919542
The effects of different parameters--e.g. the thickness of the trap material, the flow rate of the water and the depth of the heat-retrieval plane--on the water temperature have been investigated. A comparison of the present system with a conventional solar sand collector was also made.
Persistent link: https://www.econbiz.de/10008919936
This paper describes an analysis of the reduction of the heat flux coming into a room through a roof with an open water pond. A periodic analysis of the system, based on the linearisation of Dunkle's6 expressions for convective, radiative and evaporative losses, is presented. Numerical...
Persistent link: https://www.econbiz.de/10008919981
This paper discusses the thermal modelling of the technique for cooling buildings by means of open evaporation of water over the roof. A comparative study of cooling by means of (i) a roof pond, (ii) a water spray and (iii) moving water over the roof is presented. The influences of parameters...
Persistent link: https://www.econbiz.de/10008920055
This paper presents rigorous experimental outdoor performance of a 2.32 kWP stand-alone photovoltaic (SAPV) system in New Delhi (India) for four weather types in each month such as clear, hazy, partially cloudy/foggy and fully cloudy/foggy weather conditions respectively. The daily power...
Persistent link: https://www.econbiz.de/10008829911
In this paper, a study has been carried out to evaluate the energy and exergy performance of a building integrated semitransparent photovoltaic thermal (BISPVT) system integrated to the roof of a room. Comparisons have been carried out on the basis of energy and exergy by considering six...
Persistent link: https://www.econbiz.de/10010702458
In this paper, life cycle analysis has been carried out to evaluate overall performance of given rated stand-alone solar photovoltaic (SAPV) in terms of basic energy matrices, life cycle cost analysis, and earned carbon credit. Further, the experimentally calculated actual on-field life cycle...
Persistent link: https://www.econbiz.de/10010719155
Persistent link: https://www.econbiz.de/10005114915