We focus on residential electricity and gas demand, and ask three research questions. First, how does residential energy use respond to prices? We specifically wish to examine whether ownand cross-price elasticities have changed in recent years, given the evolution of the energy market. Second, is such responsiveness sensitive to equipment and energy choices that are not easily reversed (e.g., ...

Biomass was subjected to conventional and microwave pyrolysis, to determine the influence of each process on the yield and composition of the derived gas, oil and char products. The influence of pyrolysis temperature and heating rate for the conventional pyrolysis and the microwave power was investigated. Two major stages of gas release were observed during biomass pyrolysis, the first being CO...

in this paper the changes in the heat capacity of cooling towers has been investigated as a result of injecting combustion products of boilers. in the tower, the air is re-heated through mixing with hot flue gas after passing through the heat exchangers. as a result of this process, the draft of the cooling tower is increased. the additional produced draft depends on the ambient temperature and...

The dynamics of gas heating in fast pulsed discharges in nitrogen-oxygen mixtures was analyzed using a state-specific plasmachemical model and an energy conservation equation. It was shown that the heating rate changes over time according to the changes of the species involved in the heating processes. An increasing dependence on time was shown. The results show that higher electron density, el...

This paper presents an experimental investigation of various exhaust gas recirculation (EGR) rates on the engine performance like brake thermal efficiency, brake specific fuel consumption and brake power and engine exhaust gas emission parameters like nitrogen oxides(NOx), carbon monoxide (CO), hydrocarbon(HC) and particulate matter (PM) for the fuel used in the engine. Four observations are ma...

The effect of two rearing systems on productive performance and level of wellbeing in broilers reared up to day 46 was assessed. The birds were subjected to two treatments: (T1) traditional rearing (open drinkers, population density of 10.7 birds/m and infrared light bulbs as heating source), with 4 repetitions 2 of 6 birds each and (T2) modern rearing (closed drinkers, population density of 13...

ISO has provided us with a new perspective on gas temperatures in photodissociation regions through measurements of line emission from rotationallyexcited levels of H2. The H2 rotational level populations provide a thermal probe, showing that gas temperatures Tgas ≈ 500 − 1000K prevail in a portion of the PDR where significant H2 is present. Such high gas temperatures were unexpected. Theoretic...

In this work, a model of gasification process that enables all, material and energy balance, calculation of gas composition, gas heating value and reactor temperature is presented. The model parameters were estimated by laboratory experiments. A fraction of MSW generally separated from inorganic materials and biodegradable components, so called Refuse-derived fuel (RDF), was studied by material...

Climate change affects the demand for energy consumption, especially for heating and cooling buildings. Using daily mean temperature (Tmean) data, this study analyzed the spatiotemporal changes of the starting date for heating (HS), ending date for heating (HE), length (HL) and heating degree day (HDD) of the heating season in central heating zone of China. Over China's central heating zone, re...