Monday, February 17, 2020

Solar Panel Energy as an Alternative to Traditional Electrical Energy Research Paper

Solar Panel Energy as an Alternative to Traditional Electrical Energy for Residental Dwellings - Research Paper Example The solar energy is a significant source of energy to all living things on the earth. Traditionally, individuals depended on fossil fuels such as coal and oil for electricity production. However, coal and oil being fossil fuels are infinite and cannot be renewed or regenerate themselves. According to research conducted, it is evident that the fossil fuel reserves will become exhausted in few centuries to come. Traditionally, there existed a belief that an alternative fuel to coal and oil would be nuclear power. However, its rate of nuisance is characterized by the 1986 Chernobyl catastrophe in Japan. This has made solar energy to be regarded as the best replacement for fossil fuels. This is because of its greatest accuracy and safety. In addition to that, it is the most reliable and impressive energy source. For instance, the solar radiation on an average day can be five times higher in summer as compared to winter. Nevertheless, in winter to be precise during the sunny day, it is po ssible to capture a radiation of 4-5kWh/M2 /day. This is possible in regardless of the temperatures within the surrounding (Brown, 2006). Solar systems and panels are significant in solar power exploitation and have application in various dimensions. These are such as, domestic hot water preparation, heating of pool water, technology process heating and heating of buildings via heat input. In residential dwellings, there is incorporation of solar thermal systems that are modern without any difficulties in the facilities of the building (Hodgson, 2008). Furthermore, the systems have a longer lifespan (more than 20yrs) thus making them to be effective in complementing the modern technology of heating. Thus, the purpose of this proposal is to analyze solar panel energy as an alternative to traditional electrical energy for residential dwellings. Problem Statement The demand for energy in the world is increasing rapidly. People require energy to communicate, light their houses, and prep are their meals among other functions. The demand is as a result of increased population growth and individuals living standards. The utilization of energy in the world has doubled over centuries. The main source of energy being utilized in the world is oil whose production is projected to peak in the coming few years. Another most utilized source of energy is coal. Coal and oil greatly pollutes the environment. For instance, they are the major causes of climate change and acid rain. That is why the world needs urgently cleaner energy to satisfy its energy demands and reduce negative environmental impacts as a result of traditional method of electrical production. Justification of the study Many environmentalists and scientists perceive that the world needs to reduce on its greenhouse gas emission for purposes of decreasing global warming. Greener energies such as solar power provide a solution to this problem. Even though solar energy is a cleaner alternative source of energy, ther e exist many challenges that need to be addressed. The challenge is such as its ability to be utilized on a wide scale and replace the utilization of fossil fuels as the principal source of energy. In comparison to other methods of electricity production, solar energy is a renewable form of energy that is clean; the solar panels can be utilized sufficiently and effectively to heat homes and water.

Monday, February 3, 2020

The different between simulated reverberation using corner speakers in Research Paper

The different between simulated reverberation using corner speakers in the room and real reverberation - Research Paper Example Another researcher has found that the effects of steady-state suppression are similar in simulated and real reverberant environments. Therefore, there are advances that are closing the gap between the simulated and real reverberant environments, and there are commonalities as well. The following describes the differences between the two environments as well as the common ground that they share. Simulated verses Real Reverberation Simulated reverberation creates a diotic sound field (like loudspeaker in front) prone to spectral cancellations. C.f. to â€Å"amplitude mapping† / â€Å"summing localisation†. The diotic sound field may be replicated by the researcher, such as with the study done by Arai et al. (2007). They wanted to evaluate the effect of overlap-masking on speech intelligibility, so they conducted a study where they presented stimuli diotically through headphones connected to a computer. They were further able to adjust the sound level to the comfort of eac h subject. They found that the intelligibility of speech in reverberation was inversely correlated with the amount of overlap-masking (Arai et al., 2007, p. 440). ... n acoustic field is considered to be perfectly diffuse in a volume V if the energy density is the same on all points of this volume V† (Nelisse & Nicola, 1997, p. 3517). According to Kopco and Shinn-Cunningham (2002), however, this diffusion depends upon where the listener is in the reverberant room. For listeners in the center of the room, the reflective surfaces are located relatively far from the listener, which makes the sounds from all positions in the room diffuse to the listener. On the other hand, when the listener is close to a wall, early reflections are prominent, and these early reflections’ magnitude and timing depends upon where the source is in relation to the listener (Kopco & Shinn-Cunningham, 2002, p. 109). They also found that the reverberation effect on localization varies dramatically depending upon where the listener is positioned in the room, while the effects of room position on localization are modest (Kopco & Shinn-Cunningham, 2002, p. 112). On the other hand, Moorer (1979) found that diffusion is one of the reasons that simulating reverberation does not sound like real reverberation, and found that the effects of diffusion are most prominent when the walls are irregular, as opposed to flat, which is the case with most concert halls. For instance, Moorer cites the case of the Boston Symphony Hall, with its fluted side walls and box well ceiling. This configuration causes a confusion of sounds which are caused by the multiplicity of the diffused sources of sounds that are reflected from every irregularity in the room. Therefore, everything but the first few images are washed out, which means that artificial reverberation has a difficult time simulating the acoustics of a concert hall, which is the source of real reverberation (Moorer, 1979,