نتایج جستجو برای: heat and electricity balance

تعداد نتایج: 16891612  

2007
ANDREW P. INGERSOLL JUDITH B. PECHMANN

Pioneer Venus observations of temperatures and radiative fluxes are examined in an attempt to understand the thermal balance of the lower atmosphere. If all observations are correct and the probe sites are typical of the planet, the second law of thermodynamics requires that the bulk of the lower atmosphere heating must come from a source other than direct sunlight or a thermally driven atmosph...

2014

While other industries have some form of inventory to store and buffer their products and services, electricity cannot be massively stored using today’s technologies. As a result, it has to be generated and delivered for immediate consumption; in short, utilities have to balance supply and demand every moment. Storage limitations and societal dependence on electricity lead to several interestin...

Journal: :iranian journal of hydrogen and fuel cell 0
hassan ali ozgoli institute of mechanical engineering, iranian research organization for science and technology (irost), p.o. box: 3353-5111, tehran, iran

exergy analysis of an integrated molten carbonate fuel cell-turbo expander-steam turbine hybrid cycle has been presented in this study. the proposed cycle has been used as a sustainable energy approach to provide a micro hybrid power plant with high exergy efficiency. to generate electricity by the mentioned system, an externally reformed molten carbonate fuel cell located upstream of the combi...

2005
George Havenith

Th is paper discusses human thermoregulation and how this relates to health problems during exposure to climatic stress. Th e heat exchange of the body with the environment is described in terms of the heat balance equation which determines whether the body heats up, remains at stable temperature, or cools. Inside the body the thermoregulatory control aims at creating the right conditions of he...

2017
Huaiyu Shao

Mg-based materials have been investigated as hydrogen storage materials, especially for possible onboard storage in fuel cell vehicles for decades. Recently, with the development of large-scale fuel cell technologies, the development of Mg-based materials as stationary storage to supply hydrogen to fuel-cell components and provide electricity and heat is becoming increasingly promising. In this...

2016
Stefano Moret Emanuela Peduzzi Léda Gerber François Maréchal

Urban systems account for about two-thirds of global primary energy consumption and energy-related greenhouse gas emissions, with a projected increasing trend. Deep geothermal energy and woody biomass can be used for the production of heat, electricity and biofuels, thus constituting a renewable alternative to fossil fuels for all end-uses in cities: heating, cooling, electricity and mobility. ...

2011
António Joyce Luís Coelho João Martins Nelson Tavares Ricardo Pereira Pedro Magalhães

A solar trigeneration system, based on photovoltaic-thermal (PV/T) collectors, photovoltaic (PV) modules and a heat pump unit for heating and cooling, is modelled to forecast the thermal and electric yields of the system. The aim of the trigeneration system is to provide enough electricity, domestic hot water (DHW), heating and cooling power to meet the typical demand of an urban single family ...

2015
Stefano Moret Léda Gerber Frédéric Amblard Emanuela Peduzzi François Maréchal

Heating, electricity and transportation are the three components of urban systems final energy consumption. Geothermal energy and biomass are two promising renewable energy resources that can be used for the production of heat, electricity and biofuels, thus allowing a reduction of fossil fuel consumption and of the associated greenhouse gas emissions. The goal of this paper is to assess the po...

2011
M. Houwing B. De Schutter

With the increasing application of distributed energy resources and information technologies in the electricity infrastructure, innovative possibilities for incorporating the demand side more actively in power system operation are enabled. At the residential level energy costs could be reduced with intelligent price-based control concepts (demand response). A promising, controllable, residentia...

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