OS = 70lbs. ; Ignition: electronic; Dimensions 25.6" x 18.5" x 12.4"; Maximum flow rate; 6.1 gallons per minute at 60 degrees temperature rise, 4.6 GPM at 80 temperature rise. The T-H2 can be vented with PVC and it uses two heat exchangers to maximize the unit’s energy efficiency. 5. Takagi T-M32 is specifically designed for commercial applications due to its heavy duty
2.1 LCA model Life cycle assessment (LCA) is an effective tool for quantifying the environmental burden of products, processes or services during their life cycle from cradle to grave (ISO, 2006). Various LCA studies have been conducted in the energy and environment fields. LCA approaches can be divided into three: process-based LCA, IO LCA, and hybrid LCA. The process-based LCA requires information on energy, material, and resource inputs and environmental outputs for each stage in the product life cycle. The process-based approach was defined in the ISO 14040 framework, the general steps include goal and scope definition, inventory analysis, impact assessment, and interpretation (ISO, 2006).
Concentrator solar power concentrates light energy from the sun on a smaller surface to boil a liquid. The steam then spins turbines to generate electricity. This is might be cheaper than using photovoltaics because you don’t need to store the energy for overnight. The thermal storage allows for electricity to be generated for up to 24 hours. There are many types of technologies to do this, for example parabolic trough, compact linear Fresnel reflectors, Stirling solar dish and solar power tower.
The actual power of the wind turbine depends on the efficiency of the turbine represented by Cp (λ, β) which is the function of the tip speed ratio (λ) and pitch angle (β). The tip speed ratio (λ) is defined to be the ratio between the turbine speed and the wind speed, and is given by (λ) =wR/v where is the turbine angular speed, and R is the radius of the turbine. Therefore, the actual power captured by the wind turbine is given by P =1/2Cp(λ, β)ρAv3 Then, the torque of the wind turbine could be expressed as T = P ω The electrical power is given by: Pe = η.P Figure 3.2 shows the Cp - λ characteristics for the different values of β. From the figure, we may observe that for a fixed pitch angle, a maximum Cp is achieved when the tip speed ratio is at the optimal value (λopt). Recall Eq.
The economic system is done on two levels: microeconomics and macroeconomics. Microeconomics is the study of economics on a small scale, such as the individual behaviour in the economy markets (Davis, 2009). For example, microeconomics study will analyse how individuals respond to the incentives, the expenses of a firm or the household income. On the other hand, macroeconomics study of economics on a large scale usually the national economy (Investopedia, 2003). It analyse the national goals of the economy, such as maintaining full employment, stabilizing the economy or pursuing the economic growth.
1.1 Wind Energy System Wind is air in motion, it is due to uneven heating of earth surface by the sun rays. Since the earth surface consists of different types of land the water, it absorbs the sun heat at different rates. Wind energy is mainly used to generate electricity like earlier wind mills modern wind machines used blades to collect the winds Kinetic energy. 1.1.1 Advantages 1) The blades ere connect to shaft that turn on an electric generator to produce electricity. 2) Use of wind power to produce electricity on commercial scale has become the fastest growing energy technology.
Which two renewable energy forms did you choose? The two energy sources I choose were Solar and Wind. Solar energy is gathered by harnessing the suns rays via PV panels. "Solar photovoltaic (PV) is the main solution used today, involving the use of PV panels that generate electricity when exposed to the sun"(Ahmed, R. A., 2009). These panels trap the suns rays and convert them to energy that can be used instead of the traditional fossil fuels.