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The energy used for mechanical cooling systems in buildings in hot climate is about 70%–80% of the total energy consumption. It is important to curtail this part of energy consumption by exploring new technologies. The proposed system is a building integrated photovoltaic thermoelectric (BIPVTE) wall system which combines the concept of active PV façade and solar cooling. We present a complex model...
The traditional building integrated photovoltaic (BIPV) systems are meeting with their limitations. By incorporating thermoelectric radiant system with PV module, a prototype of building integrated photovoltaic thermoelectric (BIPVTE) wall system is proposed and numerically investigated. The system model of BIPVTE wall is established and validated by experimental data. The comprehensive system performance...
Biomass-steam gasification is an efficient unitization technology of biomass to produce gas fuel for a combined cooling, heating and power (CCHP) system. The aim of this paper is to modify the exergoeconomic method and analyze the cost allocations of multi-products from CCHP system. Firstly, two integrated CCHP schemes with biomass-steam gasification are designed. The difference lies in the gasification...
A system model that can accurately simulate the instantaneous solar transmittance through multilayer glazing façade (MGF) and shading device can provide a solid foundation for the thermal and daylighting performance calculation of MGF as well as indoor visual comfort evaluation. Traditional optical models for venetian blind and glazing façade meet with their limitations to analyze new prototype of...
In the area of buildings refrigeration, the use of thermal energy storages coupled with heat pumps is a significant way for reducing the operating costs and optimizing the design of equipment. In this paper, a prototype of large-scale refrigeration - PCM (Phase Change Material) energy storage system is described, from which experimental results on transient behavior are obtained. A dynamic model for...
A systematic framework is proposed to estimate the impact on operating costs due to uncertainty and variability in renewable resources. The framework quantifies the integration costs associated with sub-hourly variability and uncertainty as well as day-ahead forecasting errors in solar PV (photovoltaics) power. A case study illustrates how changes in system operations may affect these costs for a...
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